./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_remove_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:54:52,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:54:52,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:54:52,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:54:52,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:54:52,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:54:52,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:54:52,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:54:52,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:54:52,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:54:52,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:54:52,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:54:52,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:54:52,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:54:52,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:54:52,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:54:52,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:54:52,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:54:52,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:54:52,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:54:52,757 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:54:52,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:54:52,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:54:52,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:54:52,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:54:52,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:54:52,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:54:52,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:54:52,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:54:52,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:54:52,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:54:52,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:54:52,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:54:52,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:54:52,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:54:52,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:54:52,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:54:52,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:54:52,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:54:52,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:54:52,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:54:52,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:54:52,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:54:52,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:54:52,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:54:52,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:54:52,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:54:52,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:54:52,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:54:52,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:54:52,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:54:52,800 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:54:52,800 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:54:52,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:54:52,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:54:52,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:54:52,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:54:52,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:54:52,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:54:52,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:54:52,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:54:52,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:54:52,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:54:52,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:54:52,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:54:52,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:54:52,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:54:52,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:54:52,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:54:52,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:54:52,805 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:54:52,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:54:52,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:54:52,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ebada516f0ccae5e55b91f6e0fe5802f70171054dc79c047f46877ad506c65e [2022-07-13 22:54:53,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:54:53,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:54:53,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:54:53,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:54:53,075 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:54:53,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-07-13 22:54:53,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca168a06/f8ba60e242cd4f5ebeb31ac48a50321d/FLAGcfcbf316d [2022-07-13 22:54:53,832 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:54:53,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i [2022-07-13 22:54:53,870 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca168a06/f8ba60e242cd4f5ebeb31ac48a50321d/FLAGcfcbf316d [2022-07-13 22:54:54,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca168a06/f8ba60e242cd4f5ebeb31ac48a50321d [2022-07-13 22:54:54,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:54:54,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:54:54,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:54:54,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:54:54,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:54:54,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:54" (1/1) ... [2022-07-13 22:54:54,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f49732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:54, skipping insertion in model container [2022-07-13 22:54:54,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:54" (1/1) ... [2022-07-13 22:54:54,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:54:54,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:54:54,531 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-07-13 22:54:54,538 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-07-13 22:54:55,268 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,269 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,270 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,271 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,272 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,281 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,282 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,283 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,285 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,286 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,287 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,287 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:54:55,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:54:55,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:54:55,539 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:54:55,540 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:54:55,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:54:55,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:54:55,541 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:54:55,542 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:54:55,542 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:54:55,649 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:54:55,690 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,698 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,764 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,765 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,765 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,766 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,766 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,766 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,767 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,768 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,768 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,768 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,769 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,769 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,769 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,772 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,774 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,775 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,775 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,778 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,779 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,785 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,786 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,797 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,797 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,797 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:54:55,833 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:54:55,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4499,4512] [2022-07-13 22:54:55,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_remove_harness.i[4559,4572] [2022-07-13 22:54:55,899 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,900 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,901 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,901 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,901 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,907 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,908 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,908 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,909 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,909 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,910 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,910 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,910 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:55,967 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:54:55,970 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:54:55,970 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:54:55,971 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:54:55,971 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:54:55,972 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:54:55,972 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:54:55,972 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:54:55,973 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:54:55,973 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:54:55,996 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:54:56,013 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,029 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,059 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,060 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,060 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,060 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,061 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,062 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,062 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,062 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,062 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,063 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,065 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,065 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,068 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,068 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,068 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,072 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:56,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:54:56,233 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:54:56,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56 WrapperNode [2022-07-13 22:54:56,234 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:54:56,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:54:56,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:54:56,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:54:56,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,435 INFO L137 Inliner]: procedures = 697, calls = 1921, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 1060 [2022-07-13 22:54:56,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:54:56,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:54:56,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:54:56,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:54:56,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:54:56,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:54:56,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:54:56,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:54:56,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (1/1) ... [2022-07-13 22:54:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:54:56,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:56,618 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 22:54:56,623 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 22:54:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-13 22:54:56,653 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-13 22:54:56,653 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-13 22:54:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-13 22:54:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:54:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-13 22:54:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-13 22:54:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-13 22:54:56,654 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-13 22:54:56,654 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-13 22:54:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-13 22:54:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-13 22:54:56,655 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-13 22:54:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-13 22:54:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:54:56,655 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-13 22:54:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-13 22:54:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:54:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:54:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure s_remove_node [2022-07-13 22:54:56,656 INFO L138 BoogieDeclarations]: Found implementation of procedure s_remove_node [2022-07-13 22:54:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:54:56,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:54:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:54:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-13 22:54:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-13 22:54:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-13 22:54:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-13 22:54:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:54:56,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:54:56,657 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-13 22:54:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-13 22:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-13 22:54:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-13 22:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-13 22:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-13 22:54:56,658 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-13 22:54:56,658 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-13 22:54:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-13 22:54:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-13 22:54:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-13 22:54:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 22:54:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 22:54:56,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:54:56,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-13 22:54:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-07-13 22:54:56,660 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:54:56,660 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-13 22:54:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-13 22:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-13 22:54:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-13 22:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-13 22:54:56,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-13 22:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:54:56,661 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:54:56,662 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at [2022-07-13 22:54:56,662 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at [2022-07-13 22:54:56,928 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:54:56,932 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:54:58,785 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:54:58,795 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:54:58,795 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-07-13 22:54:58,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:54:58 BoogieIcfgContainer [2022-07-13 22:54:58,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:54:58,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:54:58,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:54:58,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:54:58,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:54:54" (1/3) ... [2022-07-13 22:54:58,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52961a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:54:58, skipping insertion in model container [2022-07-13 22:54:58,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:56" (2/3) ... [2022-07-13 22:54:58,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52961a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:54:58, skipping insertion in model container [2022-07-13 22:54:58,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:54:58" (3/3) ... [2022-07-13 22:54:58,814 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_remove_harness.i [2022-07-13 22:54:58,831 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:54:58,832 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 22:54:58,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:54:58,903 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@137ad282, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7a7220d2 [2022-07-13 22:54:58,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 22:54:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2022-07-13 22:54:58,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-07-13 22:54:58,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:58,926 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:58,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:58,931 INFO L85 PathProgramCache]: Analyzing trace with hash 207530193, now seen corresponding path program 1 times [2022-07-13 22:54:58,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:58,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213258510] [2022-07-13 22:54:58,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:54:59,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:54:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:54:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:54:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:54:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:54:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:54:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:54:59,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:54:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 22:54:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:54:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 22:54:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 22:54:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 22:54:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 22:54:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 22:54:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 22:54:59,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 22:54:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:59,736 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-13 22:54:59,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:59,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213258510] [2022-07-13 22:54:59,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213258510] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:59,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:59,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:54:59,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001569489] [2022-07-13 22:54:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:59,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:54:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:59,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:54:59,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:54:59,780 INFO L87 Difference]: Start difference. First operand has 460 states, 270 states have (on average 1.2703703703703704) internal successors, (343), 275 states have internal predecessors, (343), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-13 22:55:01,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:01,778 INFO L93 Difference]: Finished difference Result 1349 states and 2508 transitions. [2022-07-13 22:55:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:55:01,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2022-07-13 22:55:01,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:01,801 INFO L225 Difference]: With dead ends: 1349 [2022-07-13 22:55:01,801 INFO L226 Difference]: Without dead ends: 895 [2022-07-13 22:55:01,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:55:01,814 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 535 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:01,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1516 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-13 22:55:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2022-07-13 22:55:01,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 453. [2022-07-13 22:55:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 265 states have (on average 1.2339622641509433) internal successors, (327), 268 states have internal predecessors, (327), 160 states have call successors, (160), 27 states have call predecessors, (160), 26 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2022-07-13 22:55:01,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 645 transitions. [2022-07-13 22:55:01,941 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 645 transitions. Word has length 141 [2022-07-13 22:55:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:01,942 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 645 transitions. [2022-07-13 22:55:01,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-13 22:55:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 645 transitions. [2022-07-13 22:55:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-13 22:55:01,945 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:01,946 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:01,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:55:01,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:01,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1080700984, now seen corresponding path program 1 times [2022-07-13 22:55:01,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:01,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208904995] [2022-07-13 22:55:01,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:01,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:02,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:55:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:55:02,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:55:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-13 22:55:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:55:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-13 22:55:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 22:55:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-13 22:55:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-13 22:55:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 22:55:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-13 22:55:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-13 22:55:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-13 22:55:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 22:55:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-13 22:55:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,388 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-13 22:55:02,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:02,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208904995] [2022-07-13 22:55:02,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208904995] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:55:02,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482806045] [2022-07-13 22:55:02,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:02,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:02,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:02,391 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 22:55:02,404 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 22:55:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:02,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 22:55:02,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:03,039 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-13 22:55:03,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:03,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482806045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:03,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:55:03,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-13 22:55:03,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358514510] [2022-07-13 22:55:03,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:03,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:55:03,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:55:03,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:55:03,043 INFO L87 Difference]: Start difference. First operand 453 states and 645 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 22:55:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:04,102 INFO L93 Difference]: Finished difference Result 872 states and 1259 transitions. [2022-07-13 22:55:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:55:04,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2022-07-13 22:55:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:04,108 INFO L225 Difference]: With dead ends: 872 [2022-07-13 22:55:04,110 INFO L226 Difference]: Without dead ends: 455 [2022-07-13 22:55:04,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:55:04,114 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 665 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:04,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 2232 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 22:55:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2022-07-13 22:55:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2022-07-13 22:55:04,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 266 states have (on average 1.2330827067669172) internal successors, (328), 270 states have internal predecessors, (328), 160 states have call successors, (160), 27 states have call predecessors, (160), 27 states have return successors, (171), 158 states have call predecessors, (171), 158 states have call successors, (171) [2022-07-13 22:55:04,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 659 transitions. [2022-07-13 22:55:04,164 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 659 transitions. Word has length 156 [2022-07-13 22:55:04,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:04,166 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 659 transitions. [2022-07-13 22:55:04,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-13 22:55:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 659 transitions. [2022-07-13 22:55:04,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-13 22:55:04,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:04,171 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:04,202 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 22:55:04,385 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 22:55:04,385 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:04,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash 651465952, now seen corresponding path program 1 times [2022-07-13 22:55:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:04,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579077353] [2022-07-13 22:55:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:04,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:55:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:55:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:55:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:55:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:55:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:55:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:55:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:55:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 22:55:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 22:55:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:55:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-13 22:55:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:55:04,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-13 22:55:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-13 22:55:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-13 22:55:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-13 22:55:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-13 22:55:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-13 22:55:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-13 22:55:04,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-13 22:55:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-13 22:55:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 22:55:04,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-07-13 22:55:04,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:04,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579077353] [2022-07-13 22:55:04,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579077353] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:55:04,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922944215] [2022-07-13 22:55:04,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:04,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:04,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:04,944 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 22:55:04,945 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 22:55:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:05,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:55:05,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-13 22:55:05,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:05,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922944215] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:05,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:55:05,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-07-13 22:55:05,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009160795] [2022-07-13 22:55:05,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:05,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:55:05,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:55:05,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:05,629 INFO L87 Difference]: Start difference. First operand 455 states and 659 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-13 22:55:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:08,032 INFO L93 Difference]: Finished difference Result 895 states and 1330 transitions. [2022-07-13 22:55:08,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:08,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 164 [2022-07-13 22:55:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:08,038 INFO L225 Difference]: With dead ends: 895 [2022-07-13 22:55:08,038 INFO L226 Difference]: Without dead ends: 476 [2022-07-13 22:55:08,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2022-07-13 22:55:08,043 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 691 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:08,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 3294 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 22:55:08,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-13 22:55:08,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 474. [2022-07-13 22:55:08,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-13 22:55:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-13 22:55:08,071 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 164 [2022-07-13 22:55:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:08,072 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-13 22:55:08,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2022-07-13 22:55:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-13 22:55:08,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-07-13 22:55:08,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:08,074 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:08,107 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 22:55:08,299 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 22:55:08,300 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:08,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:08,300 INFO L85 PathProgramCache]: Analyzing trace with hash 706817890, now seen corresponding path program 1 times [2022-07-13 22:55:08,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:08,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888239022] [2022-07-13 22:55:08,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:08,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:08,379 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:08,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1092267889] [2022-07-13 22:55:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:08,381 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 22:55:08,383 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 22:55:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:08,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:55:08,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:08,977 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-13 22:55:08,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:08,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:08,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888239022] [2022-07-13 22:55:08,978 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:08,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092267889] [2022-07-13 22:55:08,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092267889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:08,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:08,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:55:08,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346366096] [2022-07-13 22:55:08,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:08,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:55:08,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:08,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:55:08,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:55:08,980 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-13 22:55:10,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:10,001 INFO L93 Difference]: Finished difference Result 920 states and 1403 transitions. [2022-07-13 22:55:10,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:10,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 179 [2022-07-13 22:55:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:10,006 INFO L225 Difference]: With dead ends: 920 [2022-07-13 22:55:10,007 INFO L226 Difference]: Without dead ends: 482 [2022-07-13 22:55:10,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:55:10,010 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 689 mSDsluCounter, 2174 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:10,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2749 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 22:55:10,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-07-13 22:55:10,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 474. [2022-07-13 22:55:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-13 22:55:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-13 22:55:10,036 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 179 [2022-07-13 22:55:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:10,036 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-13 22:55:10,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-13 22:55:10,037 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-13 22:55:10,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-13 22:55:10,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:10,039 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:10,071 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 22:55:10,255 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 22:55:10,259 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:10,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:10,259 INFO L85 PathProgramCache]: Analyzing trace with hash -548515061, now seen corresponding path program 1 times [2022-07-13 22:55:10,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:10,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036825532] [2022-07-13 22:55:10,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:10,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:10,327 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:10,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024912317] [2022-07-13 22:55:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:10,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:10,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:10,329 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 22:55:10,375 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 22:55:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:10,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:10,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-13 22:55:10,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:10,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:10,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036825532] [2022-07-13 22:55:10,961 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:10,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024912317] [2022-07-13 22:55:10,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024912317] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:10,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:10,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:55:10,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808420222] [2022-07-13 22:55:10,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:10,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:55:10,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:10,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:55:10,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:55:10,964 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-13 22:55:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:14,277 INFO L93 Difference]: Finished difference Result 930 states and 1407 transitions. [2022-07-13 22:55:14,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:55:14,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 195 [2022-07-13 22:55:14,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:14,284 INFO L225 Difference]: With dead ends: 930 [2022-07-13 22:55:14,284 INFO L226 Difference]: Without dead ends: 492 [2022-07-13 22:55:14,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:55:14,288 INFO L413 NwaCegarLoop]: 554 mSDtfsCounter, 754 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:14,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 3706 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-13 22:55:14,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-13 22:55:14,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2022-07-13 22:55:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 282 states have (on average 1.2411347517730495) internal successors, (350), 286 states have internal predecessors, (350), 162 states have call successors, (162), 27 states have call predecessors, (162), 28 states have return successors, (190), 161 states have call predecessors, (190), 160 states have call successors, (190) [2022-07-13 22:55:14,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 702 transitions. [2022-07-13 22:55:14,315 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 702 transitions. Word has length 195 [2022-07-13 22:55:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:14,315 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 702 transitions. [2022-07-13 22:55:14,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-13 22:55:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 702 transitions. [2022-07-13 22:55:14,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-13 22:55:14,318 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:14,318 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:14,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:14,539 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 22:55:14,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:14,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:14,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2018600789, now seen corresponding path program 2 times [2022-07-13 22:55:14,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:14,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938308073] [2022-07-13 22:55:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:14,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:14,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:14,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176429851] [2022-07-13 22:55:14,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:14,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:14,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:14,647 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 22:55:14,655 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 22:55:15,379 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:55:15,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:15,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2905 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:55:15,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:15,487 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-07-13 22:55:15,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:15,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:15,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938308073] [2022-07-13 22:55:15,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:15,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176429851] [2022-07-13 22:55:15,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176429851] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:15,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:15,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:55:15,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864166179] [2022-07-13 22:55:15,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:15,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:55:15,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:15,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:55:15,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:55:15,490 INFO L87 Difference]: Start difference. First operand 474 states and 702 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:55:16,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:16,783 INFO L93 Difference]: Finished difference Result 878 states and 1321 transitions. [2022-07-13 22:55:16,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:55:16,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 210 [2022-07-13 22:55:16,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:16,787 INFO L225 Difference]: With dead ends: 878 [2022-07-13 22:55:16,787 INFO L226 Difference]: Without dead ends: 476 [2022-07-13 22:55:16,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:16,790 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 682 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2771 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:16,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2771 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-13 22:55:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-13 22:55:16,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2022-07-13 22:55:16,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 283 states have (on average 1.2402826855123674) internal successors, (351), 288 states have internal predecessors, (351), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2022-07-13 22:55:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 714 transitions. [2022-07-13 22:55:16,813 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 714 transitions. Word has length 210 [2022-07-13 22:55:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:16,813 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 714 transitions. [2022-07-13 22:55:16,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 4 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:55:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 714 transitions. [2022-07-13 22:55:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-13 22:55:16,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:16,816 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:16,847 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 22:55:17,039 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 22:55:17,040 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash -914550263, now seen corresponding path program 1 times [2022-07-13 22:55:17,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:17,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682056523] [2022-07-13 22:55:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:17,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:17,111 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:17,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812318757] [2022-07-13 22:55:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:17,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:17,113 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 22:55:17,115 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 22:55:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:17,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 3096 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:17,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-13 22:55:17,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:17,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682056523] [2022-07-13 22:55:17,770 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:17,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812318757] [2022-07-13 22:55:17,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812318757] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:17,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:17,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:55:17,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231198335] [2022-07-13 22:55:17,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:17,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:55:17,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:55:17,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:17,773 INFO L87 Difference]: Start difference. First operand 476 states and 714 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-13 22:55:20,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:20,118 INFO L93 Difference]: Finished difference Result 883 states and 1346 transitions. [2022-07-13 22:55:20,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:55:20,119 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 233 [2022-07-13 22:55:20,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:20,122 INFO L225 Difference]: With dead ends: 883 [2022-07-13 22:55:20,122 INFO L226 Difference]: Without dead ends: 479 [2022-07-13 22:55:20,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:20,126 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 706 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3276 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:20,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3276 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-13 22:55:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-07-13 22:55:20,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 477. [2022-07-13 22:55:20,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 284 states have (on average 1.2394366197183098) internal successors, (352), 289 states have internal predecessors, (352), 162 states have call successors, (162), 27 states have call predecessors, (162), 29 states have return successors, (201), 161 states have call predecessors, (201), 160 states have call successors, (201) [2022-07-13 22:55:20,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 715 transitions. [2022-07-13 22:55:20,148 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 715 transitions. Word has length 233 [2022-07-13 22:55:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:20,149 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 715 transitions. [2022-07-13 22:55:20,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2022-07-13 22:55:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 715 transitions. [2022-07-13 22:55:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-13 22:55:20,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:20,152 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:20,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-13 22:55:20,371 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 22:55:20,371 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2024605444, now seen corresponding path program 1 times [2022-07-13 22:55:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:20,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662454137] [2022-07-13 22:55:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:20,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:20,453 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:20,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629896291] [2022-07-13 22:55:20,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:20,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:20,455 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 22:55:20,486 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 22:55:21,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:55:21,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:55:21,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 177 proven. 3 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-13 22:55:21,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:55:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-13 22:55:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662454137] [2022-07-13 22:55:21,567 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:21,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629896291] [2022-07-13 22:55:21,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629896291] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:55:21,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:55:21,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-07-13 22:55:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087799095] [2022-07-13 22:55:21,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:55:21,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 22:55:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:21,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 22:55:21,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:55:21,570 INFO L87 Difference]: Start difference. First operand 477 states and 715 transitions. Second operand has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2022-07-13 22:55:24,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:24,849 INFO L93 Difference]: Finished difference Result 901 states and 1380 transitions. [2022-07-13 22:55:24,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:55:24,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) Word has length 234 [2022-07-13 22:55:24,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:24,855 INFO L225 Difference]: With dead ends: 901 [2022-07-13 22:55:24,856 INFO L226 Difference]: Without dead ends: 496 [2022-07-13 22:55:24,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-07-13 22:55:24,858 INFO L413 NwaCegarLoop]: 558 mSDtfsCounter, 1170 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:24,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3744 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [457 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-13 22:55:24,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-07-13 22:55:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 490. [2022-07-13 22:55:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 296 states have (on average 1.2466216216216217) internal successors, (369), 300 states have internal predecessors, (369), 163 states have call successors, (163), 27 states have call predecessors, (163), 29 states have return successors, (202), 163 states have call predecessors, (202), 161 states have call successors, (202) [2022-07-13 22:55:24,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 734 transitions. [2022-07-13 22:55:24,881 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 734 transitions. Word has length 234 [2022-07-13 22:55:24,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:24,882 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 734 transitions. [2022-07-13 22:55:24,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.333333333333334) internal successors, (124), 14 states have internal predecessors, (124), 9 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (48), 5 states have call predecessors, (48), 9 states have call successors, (48) [2022-07-13 22:55:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 734 transitions. [2022-07-13 22:55:24,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-07-13 22:55:24,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:24,885 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:24,914 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 22:55:25,107 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 22:55:25,107 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:25,108 INFO L85 PathProgramCache]: Analyzing trace with hash -729173346, now seen corresponding path program 2 times [2022-07-13 22:55:25,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:25,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778020572] [2022-07-13 22:55:25,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:25,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:25,190 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:25,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341386497] [2022-07-13 22:55:25,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:55:25,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:25,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:25,196 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 22:55:25,197 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 22:55:25,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:55:25,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:25,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 3309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:55:25,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-13 22:55:26,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:55:26,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:55:26,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778020572] [2022-07-13 22:55:26,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:55:26,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341386497] [2022-07-13 22:55:26,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341386497] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:55:26,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:55:26,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:55:26,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946829042] [2022-07-13 22:55:26,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:55:26,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:55:26,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:55:26,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:55:26,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:55:26,104 INFO L87 Difference]: Start difference. First operand 490 states and 734 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:55:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:55:28,618 INFO L93 Difference]: Finished difference Result 912 states and 1378 transitions. [2022-07-13 22:55:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:55:28,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 264 [2022-07-13 22:55:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:55:28,623 INFO L225 Difference]: With dead ends: 912 [2022-07-13 22:55:28,623 INFO L226 Difference]: Without dead ends: 502 [2022-07-13 22:55:28,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:55:28,626 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 77 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 4064 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:55:28,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 4064 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 22:55:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2022-07-13 22:55:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2022-07-13 22:55:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 302 states have (on average 1.2450331125827814) internal successors, (376), 306 states have internal predecessors, (376), 168 states have call successors, (168), 28 states have call predecessors, (168), 30 states have return successors, (207), 168 states have call predecessors, (207), 166 states have call successors, (207) [2022-07-13 22:55:28,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 751 transitions. [2022-07-13 22:55:28,647 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 751 transitions. Word has length 264 [2022-07-13 22:55:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:55:28,648 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 751 transitions. [2022-07-13 22:55:28,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:55:28,648 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 751 transitions. [2022-07-13 22:55:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-13 22:55:28,649 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:55:28,650 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:55:28,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 22:55:28,860 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 22:55:28,860 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:55:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:55:28,860 INFO L85 PathProgramCache]: Analyzing trace with hash 256824554, now seen corresponding path program 3 times [2022-07-13 22:55:28,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:55:28,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850650179] [2022-07-13 22:55:28,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:55:28,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:55:28,937 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:55:28,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661838448] [2022-07-13 22:55:28,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 22:55:28,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:55:28,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:55:28,939 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 22:55:28,941 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 22:55:30,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 22:55:30,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:55:30,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 161 conjunts are in the unsatisfiable core [2022-07-13 22:55:30,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:55:30,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:55:30,427 INFO L356 Elim1Store]: treesize reduction 64, result has 42.3 percent of original size [2022-07-13 22:55:30,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 59 [2022-07-13 22:55:53,208 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_int| c_aws_array_list_length_~list.base))) (and (exists ((|v_aws_array_list_length_#t~ret219_BEFORE_CALL_1| Int) (v_aws_array_list_length_~list.base_BEFORE_CALL_1 Int) (v_aws_array_list_length_~list.offset_BEFORE_CALL_5 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_19| Int)) (let ((.cse6 (+ v_aws_array_list_length_~list.offset_BEFORE_CALL_5 16)) (.cse2 (+ v_aws_array_list_length_~list.offset_BEFORE_CALL_5 24)) (.cse7 (select |c_#memory_int| v_aws_array_list_length_~list.base_BEFORE_CALL_1))) (let ((.cse4 (mod (select .cse7 (+ v_aws_array_list_length_~list.offset_BEFORE_CALL_5 8)) 18446744073709551616)) (.cse1 (select .cse7 .cse2)) (.cse3 (select (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_19|) 0)) (.cse0 (not (= v_aws_array_list_length_~list.base_BEFORE_CALL_1 |v_aws_array_list_is_valid_~#required_size~0.base_19|))) (.cse5 (select .cse7 .cse6))) (and (or .cse0 (= .cse1 0) (not (= .cse2 0))) (or (and (not (= (mod .cse1 18446744073709551616) 0)) (= |v_aws_array_list_length_#t~ret219_BEFORE_CALL_1| 1) (<= (mod .cse3 18446744073709551616) .cse4)) (= |v_aws_array_list_length_#t~ret219_BEFORE_CALL_1| 0)) (= .cse4 0) (= (* .cse5 .cse1) .cse3) (or .cse0 (not (= .cse6 0)) (= .cse5 0)))))) (= (mod (select .cse8 (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616) 0) (exists ((|aws_array_list_is_valid_~#required_size~0.base| Int)) (let ((.cse10 (select |c_#memory_int| c_aws_array_list_length_~list.base)) (.cse12 (+ c_aws_array_list_length_~list.offset 16))) (let ((.cse9 (select (select |c_#memory_int| |aws_array_list_is_valid_~#required_size~0.base|) 0)) (.cse11 (select .cse10 .cse12))) (and (<= (mod .cse9 18446744073709551616) (mod (select .cse10 (+ c_aws_array_list_length_~list.offset 8)) 18446744073709551616)) (or (= .cse11 0) (not (= .cse12 0)) (not (= c_aws_array_list_length_~list.base |aws_array_list_is_valid_~#required_size~0.base|))) (= .cse9 (* .cse11 (select .cse10 (+ c_aws_array_list_length_~list.offset 24)))))))) (not (= (mod (select .cse8 (+ c_aws_array_list_length_~list.offset 24)) 18446744073709551616) 0)))) is different from false [2022-07-13 22:56:31,148 WARN L233 SmtUtils]: Spent 26.37s on a formula simplification. DAG size of input: 161 DAG size of output: 128 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-07-13 22:56:31,149 INFO L356 Elim1Store]: treesize reduction 147, result has 70.2 percent of original size [2022-07-13 22:56:31,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 379 treesize of output 570 [2022-07-13 22:57:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-07-13 22:57:24,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:57:33,542 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 22:57:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:57:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850650179] [2022-07-13 22:57:42,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:57:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661838448] [2022-07-13 22:57:42,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661838448] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:57:42,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:57:42,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-07-13 22:57:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949958465] [2022-07-13 22:57:42,466 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-13 22:57:42,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-13 22:57:42,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:57:42,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-13 22:57:42,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=733, Unknown=2, NotChecked=54, Total=870 [2022-07-13 22:57:42,467 INFO L87 Difference]: Start difference. First operand 502 states and 751 transitions. Second operand has 26 states, 22 states have (on average 4.590909090909091) internal successors, (101), 19 states have internal predecessors, (101), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (29), 7 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-13 22:57:55,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-13 22:58:03,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:03,243 INFO L93 Difference]: Finished difference Result 646 states and 1003 transitions. [2022-07-13 22:58:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-13 22:58:03,244 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 22 states have (on average 4.590909090909091) internal successors, (101), 19 states have internal predecessors, (101), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (29), 7 states have call predecessors, (29), 6 states have call successors, (29) Word has length 279 [2022-07-13 22:58:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:03,251 INFO L225 Difference]: With dead ends: 646 [2022-07-13 22:58:03,251 INFO L226 Difference]: Without dead ends: 644 [2022-07-13 22:58:03,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=137, Invalid=1342, Unknown=7, NotChecked=74, Total=1560 [2022-07-13 22:58:03,253 INFO L413 NwaCegarLoop]: 620 mSDtfsCounter, 172 mSDsluCounter, 6200 mSDsCounter, 0 mSdLazyCounter, 3559 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 6820 SdHoareTripleChecker+Invalid, 6892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 3559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3122 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:03,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 6820 Invalid, 6892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 3559 Invalid, 0 Unknown, 3122 Unchecked, 7.5s Time] [2022-07-13 22:58:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-07-13 22:58:03,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 540. [2022-07-13 22:58:03,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 327 states have (on average 1.2415902140672783) internal successors, (406), 333 states have internal predecessors, (406), 175 states have call successors, (175), 31 states have call predecessors, (175), 36 states have return successors, (238), 176 states have call predecessors, (238), 173 states have call successors, (238) [2022-07-13 22:58:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 819 transitions. [2022-07-13 22:58:03,285 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 819 transitions. Word has length 279 [2022-07-13 22:58:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:03,285 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 819 transitions. [2022-07-13 22:58:03,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 22 states have (on average 4.590909090909091) internal successors, (101), 19 states have internal predecessors, (101), 7 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (29), 7 states have call predecessors, (29), 6 states have call successors, (29) [2022-07-13 22:58:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 819 transitions. [2022-07-13 22:58:03,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-07-13 22:58:03,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:03,288 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:03,326 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 22:58:03,503 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 22:58:03,503 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:03,504 INFO L85 PathProgramCache]: Analyzing trace with hash -579071222, now seen corresponding path program 1 times [2022-07-13 22:58:03,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:03,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333623072] [2022-07-13 22:58:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:03,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:03,592 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:03,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073865042] [2022-07-13 22:58:03,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:03,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:03,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:03,594 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 22:58:03,611 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 22:58:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:04,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 3458 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:58:04,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-07-13 22:58:04,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:04,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:04,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333623072] [2022-07-13 22:58:04,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:04,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073865042] [2022-07-13 22:58:04,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073865042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:04,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:04,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:58:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311118431] [2022-07-13 22:58:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:04,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:58:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:58:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:58:04,513 INFO L87 Difference]: Start difference. First operand 540 states and 819 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-13 22:58:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:07,179 INFO L93 Difference]: Finished difference Result 1010 states and 1553 transitions. [2022-07-13 22:58:07,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:58:07,180 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 291 [2022-07-13 22:58:07,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:07,184 INFO L225 Difference]: With dead ends: 1010 [2022-07-13 22:58:07,184 INFO L226 Difference]: Without dead ends: 542 [2022-07-13 22:58:07,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:58:07,189 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 771 mSDsluCounter, 3648 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 4200 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:07,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 4200 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 22:58:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-13 22:58:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 524. [2022-07-13 22:58:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 313 states have (on average 1.2364217252396166) internal successors, (387), 319 states have internal predecessors, (387), 174 states have call successors, (174), 31 states have call predecessors, (174), 35 states have return successors, (224), 174 states have call predecessors, (224), 172 states have call successors, (224) [2022-07-13 22:58:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 785 transitions. [2022-07-13 22:58:07,215 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 785 transitions. Word has length 291 [2022-07-13 22:58:07,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:07,216 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 785 transitions. [2022-07-13 22:58:07,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-13 22:58:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 785 transitions. [2022-07-13 22:58:07,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-07-13 22:58:07,218 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:07,218 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:07,252 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 22:58:07,443 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 22:58:07,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:07,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:07,444 INFO L85 PathProgramCache]: Analyzing trace with hash -606360300, now seen corresponding path program 1 times [2022-07-13 22:58:07,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:07,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051433274] [2022-07-13 22:58:07,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:07,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:07,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:07,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599210395] [2022-07-13 22:58:07,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:07,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:07,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:07,522 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 22:58:07,523 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 22:58:08,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:08,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:58:08,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2022-07-13 22:58:08,282 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:08,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:08,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051433274] [2022-07-13 22:58:08,283 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:08,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599210395] [2022-07-13 22:58:08,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599210395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:08,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:08,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:58:08,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051154892] [2022-07-13 22:58:08,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:08,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:58:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:58:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:58:08,285 INFO L87 Difference]: Start difference. First operand 524 states and 785 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-13 22:58:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:08,329 INFO L93 Difference]: Finished difference Result 1017 states and 1600 transitions. [2022-07-13 22:58:08,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:58:08,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 294 [2022-07-13 22:58:08,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:08,334 INFO L225 Difference]: With dead ends: 1017 [2022-07-13 22:58:08,335 INFO L226 Difference]: Without dead ends: 529 [2022-07-13 22:58:08,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 292 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 22:58:08,339 INFO L413 NwaCegarLoop]: 649 mSDtfsCounter, 7 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1927 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 22:58:08,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1927 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:58:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-07-13 22:58:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 526. [2022-07-13 22:58:08,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 315 states have (on average 1.234920634920635) internal successors, (389), 321 states have internal predecessors, (389), 174 states have call successors, (174), 31 states have call predecessors, (174), 35 states have return successors, (224), 174 states have call predecessors, (224), 172 states have call successors, (224) [2022-07-13 22:58:08,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 787 transitions. [2022-07-13 22:58:08,375 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 787 transitions. Word has length 294 [2022-07-13 22:58:08,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:08,377 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 787 transitions. [2022-07-13 22:58:08,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-07-13 22:58:08,377 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 787 transitions. [2022-07-13 22:58:08,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-13 22:58:08,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:08,379 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:08,412 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 22:58:08,607 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 22:58:08,607 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:08,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:08,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1450138833, now seen corresponding path program 1 times [2022-07-13 22:58:08,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:08,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406467596] [2022-07-13 22:58:08,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:08,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:08,694 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:08,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184711842] [2022-07-13 22:58:08,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:08,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:08,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:08,696 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 22:58:08,723 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 22:58:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:09,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 3595 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:58:09,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2022-07-13 22:58:09,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:09,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:09,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406467596] [2022-07-13 22:58:09,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:09,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184711842] [2022-07-13 22:58:09,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184711842] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:09,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:09,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:58:09,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662551593] [2022-07-13 22:58:09,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:09,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:58:09,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:58:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:58:09,536 INFO L87 Difference]: Start difference. First operand 526 states and 787 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:58:11,267 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 22:58:12,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:12,449 INFO L93 Difference]: Finished difference Result 1052 states and 1630 transitions. [2022-07-13 22:58:12,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:58:12,450 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 300 [2022-07-13 22:58:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:12,454 INFO L225 Difference]: With dead ends: 1052 [2022-07-13 22:58:12,454 INFO L226 Difference]: Without dead ends: 562 [2022-07-13 22:58:12,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 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 22:58:12,458 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 21 mSDsluCounter, 2378 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3030 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:12,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3030 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-13 22:58:12,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-13 22:58:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 534. [2022-07-13 22:58:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 323 states have (on average 1.2352941176470589) internal successors, (399), 329 states have internal predecessors, (399), 174 states have call successors, (174), 31 states have call predecessors, (174), 35 states have return successors, (224), 174 states have call predecessors, (224), 172 states have call successors, (224) [2022-07-13 22:58:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 797 transitions. [2022-07-13 22:58:12,485 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 797 transitions. Word has length 300 [2022-07-13 22:58:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:12,486 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 797 transitions. [2022-07-13 22:58:12,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:58:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 797 transitions. [2022-07-13 22:58:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-13 22:58:12,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:12,488 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:12,526 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 22:58:12,715 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 22:58:12,715 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1714492075, now seen corresponding path program 1 times [2022-07-13 22:58:12,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:12,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141761460] [2022-07-13 22:58:12,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:12,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:12,790 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:12,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1880597856] [2022-07-13 22:58:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:12,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:12,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:12,792 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 22:58:12,794 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 22:58:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:13,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 3589 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:58:13,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:13,580 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-07-13 22:58:13,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:13,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:13,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141761460] [2022-07-13 22:58:13,581 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:13,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880597856] [2022-07-13 22:58:13,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880597856] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:13,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:13,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:58:13,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049167475] [2022-07-13 22:58:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:13,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:58:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:13,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:58:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:58:13,583 INFO L87 Difference]: Start difference. First operand 534 states and 797 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:58:13,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:13,624 INFO L93 Difference]: Finished difference Result 1040 states and 1588 transitions. [2022-07-13 22:58:13,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:58:13,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 300 [2022-07-13 22:58:13,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:13,630 INFO L225 Difference]: With dead ends: 1040 [2022-07-13 22:58:13,630 INFO L226 Difference]: Without dead ends: 542 [2022-07-13 22:58:13,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 297 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 22:58:13,633 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 3 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1921 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 22:58:13,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1921 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:58:13,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-13 22:58:13,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2022-07-13 22:58:13,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 327 states have (on average 1.2324159021406729) internal successors, (403), 333 states have internal predecessors, (403), 174 states have call successors, (174), 31 states have call predecessors, (174), 35 states have return successors, (224), 174 states have call predecessors, (224), 172 states have call successors, (224) [2022-07-13 22:58:13,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 801 transitions. [2022-07-13 22:58:13,663 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 801 transitions. Word has length 300 [2022-07-13 22:58:13,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:13,663 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 801 transitions. [2022-07-13 22:58:13,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-13 22:58:13,664 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 801 transitions. [2022-07-13 22:58:13,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-13 22:58:13,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:13,666 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:13,699 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 22:58:13,880 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 22:58:13,881 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1361412047, now seen corresponding path program 1 times [2022-07-13 22:58:13,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769873175] [2022-07-13 22:58:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:13,957 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:13,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894748390] [2022-07-13 22:58:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:13,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:13,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:13,959 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 22:58:13,961 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 22:58:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:14,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 3587 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 22:58:14,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:14,793 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-13 22:58:14,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:14,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769873175] [2022-07-13 22:58:14,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:14,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894748390] [2022-07-13 22:58:14,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894748390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:14,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:14,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:58:14,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820297102] [2022-07-13 22:58:14,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:14,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:58:14,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:14,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:58:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:58:14,796 INFO L87 Difference]: Start difference. First operand 538 states and 801 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-13 22:58:15,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:15,349 INFO L93 Difference]: Finished difference Result 1038 states and 1558 transitions. [2022-07-13 22:58:15,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:58:15,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 312 [2022-07-13 22:58:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:15,354 INFO L225 Difference]: With dead ends: 1038 [2022-07-13 22:58:15,354 INFO L226 Difference]: Without dead ends: 575 [2022-07-13 22:58:15,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:58:15,357 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 46 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:15,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3283 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:58:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-07-13 22:58:15,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 546. [2022-07-13 22:58:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 331 states have (on average 1.229607250755287) internal successors, (407), 337 states have internal predecessors, (407), 178 states have call successors, (178), 31 states have call predecessors, (178), 35 states have return successors, (228), 178 states have call predecessors, (228), 176 states have call successors, (228) [2022-07-13 22:58:15,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 813 transitions. [2022-07-13 22:58:15,385 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 813 transitions. Word has length 312 [2022-07-13 22:58:15,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:15,385 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 813 transitions. [2022-07-13 22:58:15,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 4 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-13 22:58:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 813 transitions. [2022-07-13 22:58:15,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-07-13 22:58:15,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:15,388 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:15,417 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 22:58:15,607 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 22:58:15,607 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:15,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:15,608 INFO L85 PathProgramCache]: Analyzing trace with hash 522378385, now seen corresponding path program 1 times [2022-07-13 22:58:15,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:15,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480018121] [2022-07-13 22:58:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:15,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:15,680 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:15,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946099455] [2022-07-13 22:58:15,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:15,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:15,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:15,682 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 22:58:15,713 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 22:58:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:16,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-13 22:58:16,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:16,553 INFO L134 CoverageAnalysis]: Checked inductivity of 567 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-07-13 22:58:16,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:16,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:16,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480018121] [2022-07-13 22:58:16,554 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:16,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946099455] [2022-07-13 22:58:16,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946099455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:16,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:16,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 22:58:16,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153172115] [2022-07-13 22:58:16,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:16,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 22:58:16,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:16,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 22:58:16,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:58:16,556 INFO L87 Difference]: Start difference. First operand 546 states and 813 transitions. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 5 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:58:16,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:16,760 INFO L93 Difference]: Finished difference Result 1077 states and 1657 transitions. [2022-07-13 22:58:16,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 22:58:16,761 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 5 states have call predecessors, (33), 2 states have call successors, (33) Word has length 312 [2022-07-13 22:58:16,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:16,765 INFO L225 Difference]: With dead ends: 1077 [2022-07-13 22:58:16,766 INFO L226 Difference]: Without dead ends: 567 [2022-07-13 22:58:16,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:58:16,770 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 21 mSDsluCounter, 6600 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7267 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:16,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7267 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 22:58:16,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-13 22:58:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 557. [2022-07-13 22:58:16,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 341 states have (on average 1.2258064516129032) internal successors, (418), 346 states have internal predecessors, (418), 178 states have call successors, (178), 31 states have call predecessors, (178), 36 states have return successors, (249), 180 states have call predecessors, (249), 176 states have call successors, (249) [2022-07-13 22:58:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 845 transitions. [2022-07-13 22:58:16,803 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 845 transitions. Word has length 312 [2022-07-13 22:58:16,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:16,804 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 845 transitions. [2022-07-13 22:58:16,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 9 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (33), 5 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:58:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 845 transitions. [2022-07-13 22:58:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-13 22:58:16,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:16,807 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:16,841 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 22:58:17,035 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 22:58:17,035 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:17,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:17,036 INFO L85 PathProgramCache]: Analyzing trace with hash 316025876, now seen corresponding path program 1 times [2022-07-13 22:58:17,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:17,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412791231] [2022-07-13 22:58:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:17,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:17,130 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:17,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400300023] [2022-07-13 22:58:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:17,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:17,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:17,136 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 22:58:17,144 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 22:58:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:17,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 3591 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:58:17,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-07-13 22:58:17,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:17,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412791231] [2022-07-13 22:58:17,965 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:17,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400300023] [2022-07-13 22:58:17,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400300023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:17,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:17,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:58:17,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664724375] [2022-07-13 22:58:17,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:17,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:58:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:17,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:58:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:58:17,968 INFO L87 Difference]: Start difference. First operand 557 states and 845 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 22:58:18,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:18,010 INFO L93 Difference]: Finished difference Result 1080 states and 1677 transitions. [2022-07-13 22:58:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:58:18,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 306 [2022-07-13 22:58:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:18,015 INFO L225 Difference]: With dead ends: 1080 [2022-07-13 22:58:18,015 INFO L226 Difference]: Without dead ends: 559 [2022-07-13 22:58:18,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 304 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 22:58:18,019 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 3 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1921 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 22:58:18,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1921 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:58:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-07-13 22:58:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 557. [2022-07-13 22:58:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 341 states have (on average 1.219941348973607) internal successors, (416), 346 states have internal predecessors, (416), 178 states have call successors, (178), 31 states have call predecessors, (178), 36 states have return successors, (249), 180 states have call predecessors, (249), 176 states have call successors, (249) [2022-07-13 22:58:18,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 843 transitions. [2022-07-13 22:58:18,048 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 843 transitions. Word has length 306 [2022-07-13 22:58:18,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:18,048 INFO L495 AbstractCegarLoop]: Abstraction has 557 states and 843 transitions. [2022-07-13 22:58:18,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 22:58:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 843 transitions. [2022-07-13 22:58:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-07-13 22:58:18,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:18,051 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:18,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-07-13 22:58:18,279 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 22:58:18,279 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:18,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:18,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1667411094, now seen corresponding path program 1 times [2022-07-13 22:58:18,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:18,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468125291] [2022-07-13 22:58:18,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:18,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:18,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:18,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [445101476] [2022-07-13 22:58:18,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:18,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:18,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:18,359 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 22:58:18,360 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 22:58:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:19,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 22:58:19,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-13 22:58:19,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:19,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:19,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468125291] [2022-07-13 22:58:19,225 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:19,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445101476] [2022-07-13 22:58:19,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445101476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:19,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:19,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:58:19,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029536767] [2022-07-13 22:58:19,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:19,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:58:19,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:19,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:58:19,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:58:19,226 INFO L87 Difference]: Start difference. First operand 557 states and 843 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 22:58:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:19,273 INFO L93 Difference]: Finished difference Result 1098 states and 1720 transitions. [2022-07-13 22:58:19,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:58:19,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 306 [2022-07-13 22:58:19,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:19,278 INFO L225 Difference]: With dead ends: 1098 [2022-07-13 22:58:19,278 INFO L226 Difference]: Without dead ends: 577 [2022-07-13 22:58:19,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 303 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 22:58:19,282 INFO L413 NwaCegarLoop]: 660 mSDtfsCounter, 9 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:19,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2625 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:58:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-07-13 22:58:19,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 565. [2022-07-13 22:58:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 349 states have (on average 1.2148997134670487) internal successors, (424), 354 states have internal predecessors, (424), 178 states have call successors, (178), 31 states have call predecessors, (178), 36 states have return successors, (249), 180 states have call predecessors, (249), 176 states have call successors, (249) [2022-07-13 22:58:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 851 transitions. [2022-07-13 22:58:19,317 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 851 transitions. Word has length 306 [2022-07-13 22:58:19,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:19,317 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 851 transitions. [2022-07-13 22:58:19,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-13 22:58:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 851 transitions. [2022-07-13 22:58:19,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-07-13 22:58:19,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:19,320 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:58:19,354 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 22:58:19,543 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 22:58:19,544 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:19,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:19,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2015243163, now seen corresponding path program 2 times [2022-07-13 22:58:19,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:19,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398238510] [2022-07-13 22:58:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:19,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:19,609 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:19,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1622015344] [2022-07-13 22:58:19,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:58:19,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:19,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:19,611 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 22:58:19,641 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 22:58:20,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:58:20,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:58:20,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 52 conjunts are in the unsatisfiable core [2022-07-13 22:58:20,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 251 proven. 1 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-13 22:58:20,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:58:21,078 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-07-13 22:58:21,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:21,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398238510] [2022-07-13 22:58:21,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:21,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622015344] [2022-07-13 22:58:21,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622015344] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:58:21,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:58:21,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 16 [2022-07-13 22:58:21,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914257318] [2022-07-13 22:58:21,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:58:21,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-13 22:58:21,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:21,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-13 22:58:21,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:58:21,081 INFO L87 Difference]: Start difference. First operand 565 states and 851 transitions. Second operand has 16 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-07-13 22:58:21,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:21,614 INFO L93 Difference]: Finished difference Result 1102 states and 1668 transitions. [2022-07-13 22:58:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:58:21,615 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 300 [2022-07-13 22:58:21,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:21,621 INFO L225 Difference]: With dead ends: 1102 [2022-07-13 22:58:21,621 INFO L226 Difference]: Without dead ends: 570 [2022-07-13 22:58:21,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 599 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:58:21,625 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 4 mSDsluCounter, 7755 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8367 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:21,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 8367 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:58:21,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-07-13 22:58:21,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2022-07-13 22:58:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 351 states have (on average 1.2136752136752136) internal successors, (426), 357 states have internal predecessors, (426), 178 states have call successors, (178), 31 states have call predecessors, (178), 37 states have return successors, (252), 180 states have call predecessors, (252), 176 states have call successors, (252) [2022-07-13 22:58:21,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 856 transitions. [2022-07-13 22:58:21,657 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 856 transitions. Word has length 300 [2022-07-13 22:58:21,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:21,657 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 856 transitions. [2022-07-13 22:58:21,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 6 states have call successors, (37), 3 states have call predecessors, (37), 5 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-07-13 22:58:21,658 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 856 transitions. [2022-07-13 22:58:21,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-13 22:58:21,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:21,660 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:21,693 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 22:58:21,883 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 22:58:21,884 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1728958353, now seen corresponding path program 1 times [2022-07-13 22:58:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:21,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470550512] [2022-07-13 22:58:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:21,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:21,958 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:21,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [401080484] [2022-07-13 22:58:21,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:21,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:21,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:21,960 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 22:58:21,981 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 22:58:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:22,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 3617 conjuncts, 26 conjunts are in the unsatisfiable core [2022-07-13 22:58:22,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 280 proven. 3 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2022-07-13 22:58:22,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:58:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-07-13 22:58:23,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470550512] [2022-07-13 22:58:23,250 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:23,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [401080484] [2022-07-13 22:58:23,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [401080484] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:58:23,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:58:23,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-07-13 22:58:23,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009807221] [2022-07-13 22:58:23,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:58:23,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:58:23,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:58:23,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:58:23,252 INFO L87 Difference]: Start difference. First operand 568 states and 856 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2022-07-13 22:58:26,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:26,966 INFO L93 Difference]: Finished difference Result 1109 states and 1687 transitions. [2022-07-13 22:58:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:58:26,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) Word has length 311 [2022-07-13 22:58:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:26,971 INFO L225 Difference]: With dead ends: 1109 [2022-07-13 22:58:26,971 INFO L226 Difference]: Without dead ends: 619 [2022-07-13 22:58:26,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:58:26,975 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 56 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 4675 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:26,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 4675 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-13 22:58:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-13 22:58:27,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 588. [2022-07-13 22:58:27,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 364 states have (on average 1.2142857142857142) internal successors, (442), 369 states have internal predecessors, (442), 185 states have call successors, (185), 31 states have call predecessors, (185), 37 states have return successors, (261), 188 states have call predecessors, (261), 183 states have call successors, (261) [2022-07-13 22:58:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 888 transitions. [2022-07-13 22:58:27,007 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 888 transitions. Word has length 311 [2022-07-13 22:58:27,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:27,008 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 888 transitions. [2022-07-13 22:58:27,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 7 states have internal predecessors, (111), 4 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (38), 5 states have call predecessors, (38), 4 states have call successors, (38) [2022-07-13 22:58:27,008 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 888 transitions. [2022-07-13 22:58:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-13 22:58:27,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:27,011 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:27,043 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 22:58:27,227 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 22:58:27,228 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash 91030123, now seen corresponding path program 1 times [2022-07-13 22:58:27,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:27,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607876560] [2022-07-13 22:58:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:27,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:27,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93366006] [2022-07-13 22:58:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:27,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:27,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:27,294 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 22:58:27,295 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 22:58:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:28,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 3611 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-13 22:58:28,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 593 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2022-07-13 22:58:28,215 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:28,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:28,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607876560] [2022-07-13 22:58:28,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:28,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93366006] [2022-07-13 22:58:28,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93366006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:28,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:28,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:58:28,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130212236] [2022-07-13 22:58:28,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:28,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:58:28,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:58:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:58:28,217 INFO L87 Difference]: Start difference. First operand 588 states and 888 transitions. Second operand has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-13 22:58:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:29,181 INFO L93 Difference]: Finished difference Result 1070 states and 1626 transitions. [2022-07-13 22:58:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:58:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 311 [2022-07-13 22:58:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:29,206 INFO L225 Difference]: With dead ends: 1070 [2022-07-13 22:58:29,206 INFO L226 Difference]: Without dead ends: 560 [2022-07-13 22:58:29,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 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 22:58:29,210 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 2 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:29,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2334 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 22:58:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-07-13 22:58:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2022-07-13 22:58:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 347 states have (on average 1.2103746397694524) internal successors, (420), 353 states have internal predecessors, (420), 174 states have call successors, (174), 31 states have call predecessors, (174), 37 states have return successors, (247), 176 states have call predecessors, (247), 172 states have call successors, (247) [2022-07-13 22:58:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 841 transitions. [2022-07-13 22:58:29,255 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 841 transitions. Word has length 311 [2022-07-13 22:58:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:29,255 INFO L495 AbstractCegarLoop]: Abstraction has 560 states and 841 transitions. [2022-07-13 22:58:29,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-07-13 22:58:29,256 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 841 transitions. [2022-07-13 22:58:29,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-07-13 22:58:29,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:29,272 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:58:29,315 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 22:58:29,487 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 22:58:29,487 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:29,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:29,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1775783505, now seen corresponding path program 1 times [2022-07-13 22:58:29,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:29,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714944144] [2022-07-13 22:58:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:29,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:29,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146959056] [2022-07-13 22:58:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:29,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:29,570 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 22:58:29,578 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 22:58:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:30,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 3652 conjuncts, 51 conjunts are in the unsatisfiable core [2022-07-13 22:58:30,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:30,589 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_7171 (Array Int Int))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_7171) |c_#memory_int|)) is different from true [2022-07-13 22:58:30,713 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 22:58:30,758 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 22:58:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 300 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-07-13 22:58:30,781 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:30,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:30,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714944144] [2022-07-13 22:58:30,781 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:30,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146959056] [2022-07-13 22:58:30,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146959056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:30,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:30,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-13 22:58:30,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182447297] [2022-07-13 22:58:30,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:30,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-13 22:58:30,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:30,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-13 22:58:30,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=122, Unknown=10, NotChecked=22, Total=182 [2022-07-13 22:58:30,784 INFO L87 Difference]: Start difference. First operand 560 states and 841 transitions. Second operand has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 8 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2022-07-13 22:58:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:35,097 INFO L93 Difference]: Finished difference Result 1224 states and 1932 transitions. [2022-07-13 22:58:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 22:58:35,099 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 8 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) Word has length 322 [2022-07-13 22:58:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:35,104 INFO L225 Difference]: With dead ends: 1224 [2022-07-13 22:58:35,105 INFO L226 Difference]: Without dead ends: 696 [2022-07-13 22:58:35,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=238, Unknown=15, NotChecked=32, Total=342 [2022-07-13 22:58:35,113 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 285 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 5354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2667 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:35,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 3756 Invalid, 5354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 2470 Invalid, 0 Unknown, 2667 Unchecked, 4.2s Time] [2022-07-13 22:58:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-13 22:58:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 572. [2022-07-13 22:58:35,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 359 states have (on average 1.2089136490250696) internal successors, (434), 363 states have internal predecessors, (434), 174 states have call successors, (174), 31 states have call predecessors, (174), 37 states have return successors, (247), 178 states have call predecessors, (247), 172 states have call successors, (247) [2022-07-13 22:58:35,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 855 transitions. [2022-07-13 22:58:35,148 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 855 transitions. Word has length 322 [2022-07-13 22:58:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:35,148 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 855 transitions. [2022-07-13 22:58:35,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.615384615384615) internal successors, (125), 13 states have internal predecessors, (125), 8 states have call successors, (37), 3 states have call predecessors, (37), 4 states have return successors, (35), 8 states have call predecessors, (35), 8 states have call successors, (35) [2022-07-13 22:58:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 855 transitions. [2022-07-13 22:58:35,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-07-13 22:58:35,151 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:35,151 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:35,184 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 22:58:35,379 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 22:58:35,380 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:35,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:35,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1455095833, now seen corresponding path program 1 times [2022-07-13 22:58:35,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:35,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544850697] [2022-07-13 22:58:35,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:35,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:35,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:35,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [966656335] [2022-07-13 22:58:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:35,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:35,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:35,452 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 22:58:35,458 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 22:58:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:36,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 3672 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:58:36,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-07-13 22:58:36,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:36,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:36,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544850697] [2022-07-13 22:58:36,413 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:36,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966656335] [2022-07-13 22:58:36,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966656335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:36,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:36,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:58:36,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539247326] [2022-07-13 22:58:36,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:36,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:58:36,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:36,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:58:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:58:36,416 INFO L87 Difference]: Start difference. First operand 572 states and 855 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:58:37,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:37,596 INFO L93 Difference]: Finished difference Result 1123 states and 1811 transitions. [2022-07-13 22:58:37,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:58:37,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 326 [2022-07-13 22:58:37,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:37,602 INFO L225 Difference]: With dead ends: 1123 [2022-07-13 22:58:37,602 INFO L226 Difference]: Without dead ends: 587 [2022-07-13 22:58:37,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:58:37,607 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 15 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:37,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2460 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 22:58:37,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-07-13 22:58:37,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 574. [2022-07-13 22:58:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 361 states have (on average 1.2077562326869806) internal successors, (436), 365 states have internal predecessors, (436), 174 states have call successors, (174), 31 states have call predecessors, (174), 37 states have return successors, (247), 178 states have call predecessors, (247), 172 states have call successors, (247) [2022-07-13 22:58:37,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 857 transitions. [2022-07-13 22:58:37,638 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 857 transitions. Word has length 326 [2022-07-13 22:58:37,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:37,639 INFO L495 AbstractCegarLoop]: Abstraction has 574 states and 857 transitions. [2022-07-13 22:58:37,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:58:37,639 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 857 transitions. [2022-07-13 22:58:37,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-07-13 22:58:37,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:37,641 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:58:37,674 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 22:58:37,867 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 22:58:37,867 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:37,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:37,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1767090787, now seen corresponding path program 1 times [2022-07-13 22:58:37,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:37,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044875117] [2022-07-13 22:58:37,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:37,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:37,942 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:37,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276117731] [2022-07-13 22:58:37,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:37,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:37,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:37,945 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 22:58:37,946 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 22:58:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:38,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 3662 conjuncts, 67 conjunts are in the unsatisfiable core [2022-07-13 22:58:38,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:39,667 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 22:58:39,670 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 22:58:39,698 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-07-13 22:58:39,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:58:39,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:39,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044875117] [2022-07-13 22:58:39,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:39,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276117731] [2022-07-13 22:58:39,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276117731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:58:39,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:58:39,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-13 22:58:39,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568225136] [2022-07-13 22:58:39,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:58:39,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-13 22:58:39,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:39,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-13 22:58:39,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:58:39,700 INFO L87 Difference]: Start difference. First operand 574 states and 857 transitions. Second operand has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 16 states have internal predecessors, (134), 7 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2022-07-13 22:58:42,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-13 22:58:44,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:58:44,729 INFO L93 Difference]: Finished difference Result 1137 states and 1748 transitions. [2022-07-13 22:58:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-13 22:58:44,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 16 states have internal predecessors, (134), 7 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) Word has length 326 [2022-07-13 22:58:44,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:58:44,734 INFO L225 Difference]: With dead ends: 1137 [2022-07-13 22:58:44,734 INFO L226 Difference]: Without dead ends: 628 [2022-07-13 22:58:44,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 305 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2022-07-13 22:58:44,737 INFO L413 NwaCegarLoop]: 627 mSDtfsCounter, 98 mSDsluCounter, 7998 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 8625 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 482 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-07-13 22:58:44,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 8625 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 992 Invalid, 0 Unknown, 482 Unchecked, 4.8s Time] [2022-07-13 22:58:44,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2022-07-13 22:58:44,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 605. [2022-07-13 22:58:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 381 states have (on average 1.1968503937007875) internal successors, (456), 385 states have internal predecessors, (456), 180 states have call successors, (180), 35 states have call predecessors, (180), 42 states have return successors, (268), 185 states have call predecessors, (268), 178 states have call successors, (268) [2022-07-13 22:58:44,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 904 transitions. [2022-07-13 22:58:44,770 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 904 transitions. Word has length 326 [2022-07-13 22:58:44,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:58:44,771 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 904 transitions. [2022-07-13 22:58:44,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.444444444444445) internal successors, (134), 16 states have internal predecessors, (134), 7 states have call successors, (35), 3 states have call predecessors, (35), 6 states have return successors, (34), 9 states have call predecessors, (34), 7 states have call successors, (34) [2022-07-13 22:58:44,771 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 904 transitions. [2022-07-13 22:58:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-07-13 22:58:44,773 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:58:44,774 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-13 22:58:44,806 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 22:58:44,999 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 22:58:45,000 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:58:45,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:58:45,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1311643443, now seen corresponding path program 1 times [2022-07-13 22:58:45,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:58:45,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163602806] [2022-07-13 22:58:45,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:58:45,062 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:58:45,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398097989] [2022-07-13 22:58:45,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:58:45,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:58:45,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:58:45,064 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 22:58:45,091 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 22:58:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:58:46,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 3687 conjuncts, 139 conjunts are in the unsatisfiable core [2022-07-13 22:58:46,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:58:48,766 INFO L356 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2022-07-13 22:58:48,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 66 [2022-07-13 22:58:48,783 INFO L356 Elim1Store]: treesize reduction 45, result has 16.7 percent of original size [2022-07-13 22:58:48,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 49 treesize of output 66 [2022-07-13 22:58:48,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 22:58:48,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 26 treesize of output 38 [2022-07-13 22:58:48,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-13 22:58:48,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 26 treesize of output 38 [2022-07-13 22:58:48,812 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 19 treesize of output 11 [2022-07-13 22:58:48,838 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 19 treesize of output 11 [2022-07-13 22:58:48,855 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 0 case distinctions, treesize of input 24 treesize of output 9 [2022-07-13 22:58:48,901 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 0 case distinctions, treesize of input 36 treesize of output 24 [2022-07-13 22:58:48,905 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 0 case distinctions, treesize of input 24 treesize of output 9 [2022-07-13 22:58:48,932 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-07-13 22:58:48,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 44 [2022-07-13 22:58:49,182 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8344 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8344) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_8343 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8343) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-13 22:58:49,195 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8343 (Array Int Int)) (v_ArrVal_8344 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8343) |c_#memory_$Pointer$.base|) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8344) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-13 22:58:49,328 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 22:58:49,333 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_8346 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8347 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8347)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8346) |c_#memory_$Pointer$.base|))) is different from true [2022-07-13 22:58:49,835 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 22:58:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 451 proven. 9 refuted. 0 times theorem prover too weak. 171 trivial. 17 not checked. [2022-07-13 22:58:49,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:58:50,883 INFO L356 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2022-07-13 22:58:50,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 62 treesize of output 57 [2022-07-13 22:58:50,893 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-13 22:58:50,893 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 40 treesize of output 44 [2022-07-13 22:58:50,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:58:50,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163602806] [2022-07-13 22:58:50,988 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:58:50,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398097989] [2022-07-13 22:58:50,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398097989] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:58:50,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:58:50,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-07-13 22:58:50,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973644249] [2022-07-13 22:58:50,989 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-13 22:58:50,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-13 22:58:50,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:58:50,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-13 22:58:50,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1130, Unknown=17, NotChecked=210, Total=1482 [2022-07-13 22:58:50,991 INFO L87 Difference]: Start difference. First operand 605 states and 904 transitions. Second operand has 30 states, 29 states have (on average 5.551724137931035) internal successors, (161), 28 states have internal predecessors, (161), 14 states have call successors, (40), 5 states have call predecessors, (40), 10 states have return successors, (38), 13 states have call predecessors, (38), 14 states have call successors, (38) [2022-07-13 22:58:51,309 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_8344 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8344) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_8343 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8343) |c_#memory_$Pointer$.base|)))) (exists ((v_ArrVal_8346 (Array Int Int)) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_8347 (Array Int Int))) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8347)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_8346) |c_#memory_$Pointer$.base|)))) is different from true [2022-07-13 22:58:55,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers []