./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 22:17:55,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 22:17:55,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 22:17:55,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 22:17:55,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 22:17:55,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 22:17:55,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 22:17:55,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 22:17:55,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 22:17:55,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 22:17:55,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 22:17:55,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 22:17:55,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 22:17:55,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 22:17:55,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 22:17:55,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 22:17:55,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 22:17:55,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 22:17:55,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 22:17:55,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 22:17:55,214 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 22:17:55,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 22:17:55,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 22:17:55,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 22:17:55,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 22:17:55,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 22:17:55,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 22:17:55,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 22:17:55,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 22:17:55,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 22:17:55,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 22:17:55,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 22:17:55,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 22:17:55,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 22:17:55,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 22:17:55,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 22:17:55,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 22:17:55,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 22:17:55,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 22:17:55,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 22:17:55,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 22:17:55,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 22:17:55,234 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 22:17:55,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 22:17:55,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 22:17:55,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 22:17:55,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 22:17:55,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 22:17:55,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 22:17:55,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 22:17:55,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 22:17:55,261 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 22:17:55,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 22:17:55,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 22:17:55,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 22:17:55,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 22:17:55,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 22:17:55,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 22:17:55,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 22:17:55,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:17:55,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 22:17:55,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 22:17:55,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 22:17:55,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2022-07-19 22:17:55,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 22:17:55,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 22:17:55,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 22:17:55,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 22:17:55,478 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 22:17:55,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-19 22:17:55,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf711327/62678e8a44a643d2963f861f1821e2b6/FLAGafb10b9ac [2022-07-19 22:17:56,122 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 22:17:56,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2022-07-19 22:17:56,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf711327/62678e8a44a643d2963f861f1821e2b6/FLAGafb10b9ac [2022-07-19 22:17:56,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf711327/62678e8a44a643d2963f861f1821e2b6 [2022-07-19 22:17:56,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 22:17:56,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 22:17:56,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 22:17:56,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 22:17:56,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 22:17:56,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:17:56" (1/1) ... [2022-07-19 22:17:56,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fca0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:56, skipping insertion in model container [2022-07-19 22:17:56,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:17:56" (1/1) ... [2022-07-19 22:17:56,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 22:17:56,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 22:17:56,801 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-07-19 22:17:56,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-07-19 22:17:57,270 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,270 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,271 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,271 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,272 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,279 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,282 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,285 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,286 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,288 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,289 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,289 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,290 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,517 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:17:57,518 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:17:57,519 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:17:57,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:17:57,520 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:17:57,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:17:57,521 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:17:57,522 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:17:57,522 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:17:57,522 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:17:57,634 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:17:57,650 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,650 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,654 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,662 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,700 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,701 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,701 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,701 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,702 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,702 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,702 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,703 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,704 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,706 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,707 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,709 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,709 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,714 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,714 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,715 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:17:57,752 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 22:17:57,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2022-07-19 22:17:57,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2022-07-19 22:17:57,784 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,784 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,784 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,785 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,785 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,789 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,789 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,790 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,791 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,810 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-19 22:17:57,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-19 22:17:57,835 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-19 22:17:57,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-19 22:17:57,836 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-19 22:17:57,837 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-19 22:17:57,837 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-19 22:17:57,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-19 22:17:57,841 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-19 22:17:57,842 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-19 22:17:57,870 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-19 22:17:57,884 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,884 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,887 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,889 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,915 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,918 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,919 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,920 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,921 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,921 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,922 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,922 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,923 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,923 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,924 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,924 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,925 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,925 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,926 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,926 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,927 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,928 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,928 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,932 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,932 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,933 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-19 22:17:57,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 22:17:58,099 INFO L208 MainTranslator]: Completed translation [2022-07-19 22:17:58,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58 WrapperNode [2022-07-19 22:17:58,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 22:17:58,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 22:17:58,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 22:17:58,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 22:17:58,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,249 INFO L137 Inliner]: procedures = 697, calls = 1887, calls flagged for inlining = 61, calls inlined = 14, statements flattened = 815 [2022-07-19 22:17:58,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 22:17:58,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 22:17:58,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 22:17:58,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 22:17:58,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 22:17:58,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 22:17:58,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 22:17:58,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 22:17:58,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (1/1) ... [2022-07-19 22:17:58,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 22:17:58,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:17:58,358 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) [2022-07-19 22:17:58,376 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 [2022-07-19 22:17:58,394 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-19 22:17:58,394 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-19 22:17:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-19 22:17:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-19 22:17:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 22:17:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-19 22:17:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-19 22:17:58,395 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-19 22:17:58,395 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-19 22:17:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-19 22:17:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-19 22:17:58,396 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-19 22:17:58,396 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-19 22:17:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 22:17:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-19 22:17:58,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-19 22:17:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-19 22:17:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-19 22:17:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 22:17:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 22:17:58,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 22:17:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-19 22:17:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-19 22:17:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-19 22:17:58,401 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-19 22:17:58,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 22:17:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 22:17:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-19 22:17:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-19 22:17:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-19 22:17:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-19 22:17:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-19 22:17:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-19 22:17:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-19 22:17:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-19 22:17:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-19 22:17:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-19 22:17:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 22:17:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-19 22:17:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-19 22:17:58,407 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-19 22:17:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-19 22:17:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-19 22:17:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-19 22:17:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-19 22:17:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 22:17:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-19 22:17:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-19 22:17:58,408 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-19 22:17:58,408 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-19 22:17:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 22:17:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-19 22:17:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 22:17:58,661 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 22:17:58,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 22:17:59,330 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 22:17:59,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 22:17:59,344 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-19 22:17:59,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:17:59 BoogieIcfgContainer [2022-07-19 22:17:59,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 22:17:59,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 22:17:59,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 22:17:59,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 22:17:59,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:17:56" (1/3) ... [2022-07-19 22:17:59,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4863a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:17:59, skipping insertion in model container [2022-07-19 22:17:59,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:17:58" (2/3) ... [2022-07-19 22:17:59,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4863a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:17:59, skipping insertion in model container [2022-07-19 22:17:59,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:17:59" (3/3) ... [2022-07-19 22:17:59,353 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2022-07-19 22:17:59,382 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 22:17:59,383 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 22:17:59,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 22:17:59,454 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@7b857e9b, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@52776d3 [2022-07-19 22:17:59,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 22:17:59,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-07-19 22:17:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 22:17:59,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:17:59,478 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:17:59,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:17:59,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:17:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash -30055658, now seen corresponding path program 1 times [2022-07-19 22:17:59,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:17:59,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661448736] [2022-07-19 22:17:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:17:59,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:17:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:17:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:59,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:17:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:59,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:17:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:17:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:17:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:18:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:18:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:18:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:18:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 22:18:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:18:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:18:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 22:18:00,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:00,152 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-19 22:18:00,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:00,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661448736] [2022-07-19 22:18:00,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661448736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:00,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:00,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:18:00,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856665040] [2022-07-19 22:18:00,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:00,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:18:00,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:00,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:18:00,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:18:00,199 INFO L87 Difference]: Start difference. First operand has 315 states, 194 states have (on average 1.2577319587628866) internal successors, (244), 197 states have internal predecessors, (244), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 22:18:00,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:00,948 INFO L93 Difference]: Finished difference Result 711 states and 1124 transitions. [2022-07-19 22:18:00,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 22:18:00,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 104 [2022-07-19 22:18:00,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:00,971 INFO L225 Difference]: With dead ends: 711 [2022-07-19 22:18:00,972 INFO L226 Difference]: Without dead ends: 402 [2022-07-19 22:18:00,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:18:00,986 INFO L413 NwaCegarLoop]: 388 mSDtfsCounter, 237 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:00,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 514 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 22:18:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-07-19 22:18:01,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 308. [2022-07-19 22:18:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 191 states have internal predecessors, (231), 95 states have call successors, (95), 23 states have call predecessors, (95), 22 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2022-07-19 22:18:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 419 transitions. [2022-07-19 22:18:01,058 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 419 transitions. Word has length 104 [2022-07-19 22:18:01,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:01,058 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 419 transitions. [2022-07-19 22:18:01,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-19 22:18:01,059 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 419 transitions. [2022-07-19 22:18:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-19 22:18:01,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:01,061 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:01,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 22:18:01,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash -380024514, now seen corresponding path program 1 times [2022-07-19 22:18:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:01,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914120488] [2022-07-19 22:18:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:18:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:18:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:18:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:18:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:18:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:18:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-19 22:18:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-19 22:18:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-19 22:18:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 22:18:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-19 22:18:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-19 22:18:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-19 22:18:01,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:01,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914120488] [2022-07-19 22:18:01,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914120488] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:18:01,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078964732] [2022-07-19 22:18:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:01,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:01,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:01,411 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) [2022-07-19 22:18:01,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 22:18:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:01,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 22:18:01,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:01,905 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-19 22:18:01,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:01,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078964732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:01,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:18:01,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-19 22:18:01,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172781389] [2022-07-19 22:18:01,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:01,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:18:01,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:18:01,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-19 22:18:01,908 INFO L87 Difference]: Start difference. First operand 308 states and 419 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 22:18:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:02,068 INFO L93 Difference]: Finished difference Result 582 states and 798 transitions. [2022-07-19 22:18:02,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:18:02,069 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 104 [2022-07-19 22:18:02,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:02,073 INFO L225 Difference]: With dead ends: 582 [2022-07-19 22:18:02,074 INFO L226 Difference]: Without dead ends: 310 [2022-07-19 22:18:02,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-19 22:18:02,076 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 442 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:02,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1468 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:18:02,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-07-19 22:18:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-07-19 22:18:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 190 states have (on average 1.2210526315789474) internal successors, (232), 193 states have internal predecessors, (232), 95 states have call successors, (95), 23 states have call predecessors, (95), 23 states have return successors, (97), 93 states have call predecessors, (97), 93 states have call successors, (97) [2022-07-19 22:18:02,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 424 transitions. [2022-07-19 22:18:02,121 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 424 transitions. Word has length 104 [2022-07-19 22:18:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:02,123 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 424 transitions. [2022-07-19 22:18:02,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 22:18:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 424 transitions. [2022-07-19 22:18:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-19 22:18:02,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:02,132 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:02,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 22:18:02,351 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 [2022-07-19 22:18:02,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:02,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1602100200, now seen corresponding path program 1 times [2022-07-19 22:18:02,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:02,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145175458] [2022-07-19 22:18:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:02,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:18:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:18:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:18:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:18:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:18:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:18:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:18:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-19 22:18:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:18:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-19 22:18:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-19 22:18:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-19 22:18:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-19 22:18:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-19 22:18:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 22:18:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-19 22:18:02,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:02,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145175458] [2022-07-19 22:18:02,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145175458] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:18:02,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616505011] [2022-07-19 22:18:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:02,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:02,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:02,701 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) [2022-07-19 22:18:02,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 22:18:03,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:03,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2238 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:18:03,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:03,146 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-19 22:18:03,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:03,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616505011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:03,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:18:03,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2022-07-19 22:18:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192085347] [2022-07-19 22:18:03,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:03,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:18:03,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:03,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:18:03,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-19 22:18:03,150 INFO L87 Difference]: Start difference. First operand 310 states and 424 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 22:18:03,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:03,430 INFO L93 Difference]: Finished difference Result 605 states and 845 transitions. [2022-07-19 22:18:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:18:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 112 [2022-07-19 22:18:03,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:03,435 INFO L225 Difference]: With dead ends: 605 [2022-07-19 22:18:03,435 INFO L226 Difference]: Without dead ends: 331 [2022-07-19 22:18:03,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2022-07-19 22:18:03,438 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 506 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:03,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 2110 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:18:03,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-19 22:18:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 329. [2022-07-19 22:18:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-19 22:18:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-19 22:18:03,463 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 112 [2022-07-19 22:18:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:03,464 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-19 22:18:03,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-19 22:18:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-19 22:18:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-19 22:18:03,466 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:03,466 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:03,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:03,679 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 [2022-07-19 22:18:03,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1616611866, now seen corresponding path program 1 times [2022-07-19 22:18:03,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:03,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67781037] [2022-07-19 22:18:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:03,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:03,740 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:03,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968919222] [2022-07-19 22:18:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:03,742 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) [2022-07-19 22:18:03,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 22:18:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:04,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 2379 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:18:04,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-07-19 22:18:04,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:04,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:04,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67781037] [2022-07-19 22:18:04,169 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:04,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968919222] [2022-07-19 22:18:04,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968919222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:04,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:04,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 22:18:04,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292282860] [2022-07-19 22:18:04,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:04,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 22:18:04,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:04,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 22:18:04,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:18:04,171 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 22:18:04,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:04,366 INFO L93 Difference]: Finished difference Result 630 states and 894 transitions. [2022-07-19 22:18:04,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:18:04,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 127 [2022-07-19 22:18:04,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:04,368 INFO L225 Difference]: With dead ends: 630 [2022-07-19 22:18:04,368 INFO L226 Difference]: Without dead ends: 337 [2022-07-19 22:18:04,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-19 22:18:04,370 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 466 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:04,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1795 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:18:04,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-07-19 22:18:04,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 329. [2022-07-19 22:18:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-19 22:18:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-19 22:18:04,384 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 127 [2022-07-19 22:18:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:04,384 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-19 22:18:04,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-19 22:18:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-19 22:18:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 22:18:04,386 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:04,386 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:04,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-19 22:18:04,596 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 [2022-07-19 22:18:04,597 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:04,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1521582877, now seen corresponding path program 1 times [2022-07-19 22:18:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:04,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451792795] [2022-07-19 22:18:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:04,641 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:04,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055785881] [2022-07-19 22:18:04,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:04,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:04,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:04,643 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) [2022-07-19 22:18:04,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 22:18:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:05,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2451 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:18:05,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:05,148 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-19 22:18:05,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:05,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:05,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451792795] [2022-07-19 22:18:05,149 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:05,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055785881] [2022-07-19 22:18:05,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055785881] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:05,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:05,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 22:18:05,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197253066] [2022-07-19 22:18:05,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:05,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 22:18:05,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:05,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 22:18:05,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 22:18:05,151 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-19 22:18:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:05,503 INFO L93 Difference]: Finished difference Result 640 states and 907 transitions. [2022-07-19 22:18:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 22:18:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 143 [2022-07-19 22:18:05,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:05,507 INFO L225 Difference]: With dead ends: 640 [2022-07-19 22:18:05,508 INFO L226 Difference]: Without dead ends: 347 [2022-07-19 22:18:05,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-19 22:18:05,512 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 537 mSDsluCounter, 2046 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:05,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 2408 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:18:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-19 22:18:05,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-19 22:18:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (110), 96 states have call predecessors, (110), 95 states have call successors, (110) [2022-07-19 22:18:05,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 461 transitions. [2022-07-19 22:18:05,526 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 461 transitions. Word has length 143 [2022-07-19 22:18:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:05,526 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 461 transitions. [2022-07-19 22:18:05,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-07-19 22:18:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 461 transitions. [2022-07-19 22:18:05,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-19 22:18:05,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:05,528 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:05,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:05,735 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 [2022-07-19 22:18:05,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1907107023, now seen corresponding path program 1 times [2022-07-19 22:18:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:05,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430967214] [2022-07-19 22:18:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:05,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:05,794 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:05,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520746504] [2022-07-19 22:18:05,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:05,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:05,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:05,795 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) [2022-07-19 22:18:05,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 22:18:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:06,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 22:18:06,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-07-19 22:18:06,302 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:06,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:06,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430967214] [2022-07-19 22:18:06,302 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:06,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520746504] [2022-07-19 22:18:06,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520746504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:06,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:06,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 22:18:06,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170443121] [2022-07-19 22:18:06,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:06,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 22:18:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 22:18:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-19 22:18:06,305 INFO L87 Difference]: Start difference. First operand 329 states and 461 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-19 22:18:06,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:06,568 INFO L93 Difference]: Finished difference Result 595 states and 843 transitions. [2022-07-19 22:18:06,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:18:06,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2022-07-19 22:18:06,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:06,571 INFO L225 Difference]: With dead ends: 595 [2022-07-19 22:18:06,571 INFO L226 Difference]: Without dead ends: 331 [2022-07-19 22:18:06,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-19 22:18:06,575 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 487 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:06,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 2093 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:18:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2022-07-19 22:18:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2022-07-19 22:18:06,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 207 states have (on average 1.2318840579710144) internal successors, (255), 211 states have internal predecessors, (255), 97 states have call successors, (97), 23 states have call predecessors, (97), 25 states have return successors, (112), 96 states have call predecessors, (112), 95 states have call successors, (112) [2022-07-19 22:18:06,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 464 transitions. [2022-07-19 22:18:06,593 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 464 transitions. Word has length 158 [2022-07-19 22:18:06,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:06,595 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 464 transitions. [2022-07-19 22:18:06,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-07-19 22:18:06,595 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 464 transitions. [2022-07-19 22:18:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-07-19 22:18:06,597 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:06,598 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:06,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:06,807 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 [2022-07-19 22:18:06,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:06,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:06,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2069947675, now seen corresponding path program 1 times [2022-07-19 22:18:06,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:06,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325494626] [2022-07-19 22:18:06,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:06,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:06,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:06,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031600981] [2022-07-19 22:18:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:06,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:06,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:06,868 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) [2022-07-19 22:18:06,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 22:18:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:07,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 2692 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:18:07,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-07-19 22:18:07,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:07,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325494626] [2022-07-19 22:18:07,434 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:07,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031600981] [2022-07-19 22:18:07,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031600981] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:07,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:07,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 22:18:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020592932] [2022-07-19 22:18:07,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:07,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 22:18:07,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:07,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 22:18:07,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-19 22:18:07,436 INFO L87 Difference]: Start difference. First operand 331 states and 464 transitions. Second operand has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-19 22:18:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:07,830 INFO L93 Difference]: Finished difference Result 613 states and 869 transitions. [2022-07-19 22:18:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 22:18:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 174 [2022-07-19 22:18:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:07,832 INFO L225 Difference]: With dead ends: 613 [2022-07-19 22:18:07,832 INFO L226 Difference]: Without dead ends: 347 [2022-07-19 22:18:07,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-19 22:18:07,834 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 519 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2779 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:07,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 2779 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 22:18:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-19 22:18:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 345. [2022-07-19 22:18:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-19 22:18:07,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-19 22:18:07,847 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 174 [2022-07-19 22:18:07,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:07,847 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-19 22:18:07,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-07-19 22:18:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-19 22:18:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-19 22:18:07,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:07,850 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:07,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:08,059 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 [2022-07-19 22:18:08,059 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:08,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:08,060 INFO L85 PathProgramCache]: Analyzing trace with hash -586575313, now seen corresponding path program 1 times [2022-07-19 22:18:08,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:08,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342546493] [2022-07-19 22:18:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:08,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:08,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130701951] [2022-07-19 22:18:08,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:08,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:08,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:08,112 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) [2022-07-19 22:18:08,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 22:18:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:08,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2974 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:18:08,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:08,676 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-07-19 22:18:08,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:08,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342546493] [2022-07-19 22:18:08,677 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:08,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130701951] [2022-07-19 22:18:08,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130701951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:08,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:08,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-19 22:18:08,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721511023] [2022-07-19 22:18:08,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:08,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 22:18:08,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:08,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 22:18:08,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-19 22:18:08,679 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-19 22:18:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:08,974 INFO L93 Difference]: Finished difference Result 633 states and 897 transitions. [2022-07-19 22:18:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 22:18:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 204 [2022-07-19 22:18:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:08,977 INFO L225 Difference]: With dead ends: 633 [2022-07-19 22:18:08,977 INFO L226 Difference]: Without dead ends: 353 [2022-07-19 22:18:08,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-19 22:18:08,979 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 511 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 2391 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:08,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 2391 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:18:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-07-19 22:18:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 345. [2022-07-19 22:18:09,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.240909090909091) internal successors, (273), 223 states have internal predecessors, (273), 98 states have call successors, (98), 23 states have call predecessors, (98), 25 states have return successors, (113), 98 states have call predecessors, (113), 96 states have call successors, (113) [2022-07-19 22:18:09,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2022-07-19 22:18:09,014 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 204 [2022-07-19 22:18:09,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:09,014 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2022-07-19 22:18:09,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-07-19 22:18:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2022-07-19 22:18:09,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-19 22:18:09,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:09,016 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:09,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:09,235 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 [2022-07-19 22:18:09,235 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:09,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1182025265, now seen corresponding path program 1 times [2022-07-19 22:18:09,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:09,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786246850] [2022-07-19 22:18:09,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:09,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:09,286 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:09,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707498563] [2022-07-19 22:18:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:09,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:09,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:09,288 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) [2022-07-19 22:18:09,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 22:18:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:09,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-19 22:18:09,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:09,861 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-07-19 22:18:09,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:09,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786246850] [2022-07-19 22:18:09,861 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707498563] [2022-07-19 22:18:09,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707498563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:09,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:09,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-19 22:18:09,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412468036] [2022-07-19 22:18:09,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:09,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 22:18:09,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:09,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 22:18:09,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-19 22:18:09,863 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-19 22:18:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:10,322 INFO L93 Difference]: Finished difference Result 627 states and 887 transitions. [2022-07-19 22:18:10,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-19 22:18:10,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) Word has length 236 [2022-07-19 22:18:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:10,325 INFO L225 Difference]: With dead ends: 627 [2022-07-19 22:18:10,325 INFO L226 Difference]: Without dead ends: 347 [2022-07-19 22:18:10,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-07-19 22:18:10,327 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 582 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2944 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:10,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2944 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-19 22:18:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-19 22:18:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 329. [2022-07-19 22:18:10,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 206 states have (on average 1.233009708737864) internal successors, (254), 209 states have internal predecessors, (254), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-19 22:18:10,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 459 transitions. [2022-07-19 22:18:10,338 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 459 transitions. Word has length 236 [2022-07-19 22:18:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:10,339 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 459 transitions. [2022-07-19 22:18:10,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 5 states have call predecessors, (24), 6 states have call successors, (24) [2022-07-19 22:18:10,339 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 459 transitions. [2022-07-19 22:18:10,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-19 22:18:10,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:10,341 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:10,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:10,555 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 [2022-07-19 22:18:10,555 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:10,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:10,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1259871209, now seen corresponding path program 1 times [2022-07-19 22:18:10,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:10,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482268649] [2022-07-19 22:18:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:10,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:10,641 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:10,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133995477] [2022-07-19 22:18:10,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:10,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:10,643 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) [2022-07-19 22:18:10,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 22:18:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:11,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 3400 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-19 22:18:11,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-19 22:18:11,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:11,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482268649] [2022-07-19 22:18:11,186 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:11,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133995477] [2022-07-19 22:18:11,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133995477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:11,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:11,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 22:18:11,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820661631] [2022-07-19 22:18:11,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:11,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 22:18:11,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:11,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 22:18:11,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:18:11,188 INFO L87 Difference]: Start difference. First operand 329 states and 459 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:11,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:11,210 INFO L93 Difference]: Finished difference Result 446 states and 611 transitions. [2022-07-19 22:18:11,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 22:18:11,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 266 [2022-07-19 22:18:11,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:11,212 INFO L225 Difference]: With dead ends: 446 [2022-07-19 22:18:11,213 INFO L226 Difference]: Without dead ends: 339 [2022-07-19 22:18:11,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 22:18:11,214 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 16 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:11,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 818 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:18:11,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-07-19 22:18:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 334. [2022-07-19 22:18:11,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 214 states have internal predecessors, (259), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-19 22:18:11,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 464 transitions. [2022-07-19 22:18:11,225 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 464 transitions. Word has length 266 [2022-07-19 22:18:11,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:11,225 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 464 transitions. [2022-07-19 22:18:11,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 464 transitions. [2022-07-19 22:18:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-19 22:18:11,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:11,228 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:11,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:11,445 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 [2022-07-19 22:18:11,445 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:11,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1800338285, now seen corresponding path program 1 times [2022-07-19 22:18:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:11,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283048220] [2022-07-19 22:18:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:11,499 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:11,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982406739] [2022-07-19 22:18:11,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:11,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:11,512 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) [2022-07-19 22:18:11,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-19 22:18:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:12,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-19 22:18:12,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-07-19 22:18:12,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:12,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:12,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283048220] [2022-07-19 22:18:12,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:12,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982406739] [2022-07-19 22:18:12,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982406739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:12,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:12,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 22:18:12,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756389716] [2022-07-19 22:18:12,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:12,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 22:18:12,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:12,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 22:18:12,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:18:12,187 INFO L87 Difference]: Start difference. First operand 334 states and 464 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:13,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-19 22:18:13,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:13,825 INFO L93 Difference]: Finished difference Result 668 states and 945 transitions. [2022-07-19 22:18:13,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 22:18:13,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-19 22:18:13,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:13,828 INFO L225 Difference]: With dead ends: 668 [2022-07-19 22:18:13,828 INFO L226 Difference]: Without dead ends: 370 [2022-07-19 22:18:13,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-19 22:18:13,830 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 21 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:13,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1940 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 22:18:13,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-07-19 22:18:13,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 342. [2022-07-19 22:18:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 219 states have (on average 1.2283105022831051) internal successors, (269), 222 states have internal predecessors, (269), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-19 22:18:13,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 474 transitions. [2022-07-19 22:18:13,844 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 474 transitions. Word has length 268 [2022-07-19 22:18:13,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:13,844 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 474 transitions. [2022-07-19 22:18:13,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:13,844 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 474 transitions. [2022-07-19 22:18:13,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-19 22:18:13,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:13,846 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:13,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:14,059 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 [2022-07-19 22:18:14,059 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:14,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1635646233, now seen corresponding path program 1 times [2022-07-19 22:18:14,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:14,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695977762] [2022-07-19 22:18:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:14,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:14,121 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:14,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310470748] [2022-07-19 22:18:14,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:14,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:14,123 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) [2022-07-19 22:18:14,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-19 22:18:14,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:14,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 3395 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:18:14,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-19 22:18:14,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:14,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:14,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695977762] [2022-07-19 22:18:14,739 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:14,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310470748] [2022-07-19 22:18:14,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310470748] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:14,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:14,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:18:14,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648677037] [2022-07-19 22:18:14,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:14,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:18:14,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:14,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:18:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:18:14,741 INFO L87 Difference]: Start difference. First operand 342 states and 474 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:14,766 INFO L93 Difference]: Finished difference Result 656 states and 921 transitions. [2022-07-19 22:18:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:18:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-19 22:18:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:14,769 INFO L225 Difference]: With dead ends: 656 [2022-07-19 22:18:14,769 INFO L226 Difference]: Without dead ends: 350 [2022-07-19 22:18:14,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:18:14,772 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 3 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1243 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:14,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1243 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:18:14,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-07-19 22:18:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2022-07-19 22:18:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 223 states have (on average 1.2242152466367713) internal successors, (273), 226 states have internal predecessors, (273), 97 states have call successors, (97), 23 states have call predecessors, (97), 24 states have return successors, (108), 96 states have call predecessors, (108), 95 states have call successors, (108) [2022-07-19 22:18:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 478 transitions. [2022-07-19 22:18:14,786 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 478 transitions. Word has length 268 [2022-07-19 22:18:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:14,786 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 478 transitions. [2022-07-19 22:18:14,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 478 transitions. [2022-07-19 22:18:14,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-19 22:18:14,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:14,788 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:14,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:14,999 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 [2022-07-19 22:18:14,999 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:15,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1140663521, now seen corresponding path program 1 times [2022-07-19 22:18:15,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:15,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131248203] [2022-07-19 22:18:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:15,060 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:15,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983215890] [2022-07-19 22:18:15,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:15,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:15,062 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) [2022-07-19 22:18:15,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-19 22:18:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:15,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 71 conjunts are in the unsatisfiable core [2022-07-19 22:18:15,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 256 proven. 0 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2022-07-19 22:18:16,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:16,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:16,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131248203] [2022-07-19 22:18:16,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:16,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983215890] [2022-07-19 22:18:16,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983215890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:16,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:16,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-19 22:18:16,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834364898] [2022-07-19 22:18:16,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:16,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-19 22:18:16,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:16,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-19 22:18:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-19 22:18:16,171 INFO L87 Difference]: Start difference. First operand 346 states and 478 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-19 22:18:16,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:16,618 INFO L93 Difference]: Finished difference Result 679 states and 949 transitions. [2022-07-19 22:18:16,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:18:16,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 268 [2022-07-19 22:18:16,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:16,621 INFO L225 Difference]: With dead ends: 679 [2022-07-19 22:18:16,621 INFO L226 Difference]: Without dead ends: 395 [2022-07-19 22:18:16,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 253 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-07-19 22:18:16,624 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 74 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:16,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2994 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 302 Invalid, 0 Unknown, 66 Unchecked, 0.2s Time] [2022-07-19 22:18:16,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-07-19 22:18:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 367. [2022-07-19 22:18:16,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 240 states have (on average 1.2208333333333334) internal successors, (293), 243 states have internal predecessors, (293), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-19 22:18:16,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 508 transitions. [2022-07-19 22:18:16,640 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 508 transitions. Word has length 268 [2022-07-19 22:18:16,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:16,640 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 508 transitions. [2022-07-19 22:18:16,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 states have internal predecessors, (103), 6 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2022-07-19 22:18:16,640 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 508 transitions. [2022-07-19 22:18:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-19 22:18:16,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:16,642 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:16,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:16,851 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 [2022-07-19 22:18:16,851 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:16,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:16,852 INFO L85 PathProgramCache]: Analyzing trace with hash -671372643, now seen corresponding path program 1 times [2022-07-19 22:18:16,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:16,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339353960] [2022-07-19 22:18:16,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:16,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:16,905 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:16,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181917649] [2022-07-19 22:18:16,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:16,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:16,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:16,907 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) [2022-07-19 22:18:16,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-19 22:18:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:17,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-19 22:18:17,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2022-07-19 22:18:17,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:17,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339353960] [2022-07-19 22:18:17,511 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:17,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181917649] [2022-07-19 22:18:17,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181917649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:17,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:17,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:18:17,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441695597] [2022-07-19 22:18:17,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:17,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:18:17,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:17,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:18:17,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:18:17,513 INFO L87 Difference]: Start difference. First operand 367 states and 508 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:17,561 INFO L93 Difference]: Finished difference Result 709 states and 999 transitions. [2022-07-19 22:18:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:18:17,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 268 [2022-07-19 22:18:17,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:17,563 INFO L225 Difference]: With dead ends: 709 [2022-07-19 22:18:17,563 INFO L226 Difference]: Without dead ends: 387 [2022-07-19 22:18:17,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-19 22:18:17,565 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 8 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:17,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1710 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:18:17,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-07-19 22:18:17,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 375. [2022-07-19 22:18:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 248 states have (on average 1.217741935483871) internal successors, (302), 251 states have internal predecessors, (302), 99 states have call successors, (99), 24 states have call predecessors, (99), 26 states have return successors, (116), 99 states have call predecessors, (116), 97 states have call successors, (116) [2022-07-19 22:18:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 517 transitions. [2022-07-19 22:18:17,579 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 517 transitions. Word has length 268 [2022-07-19 22:18:17,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:17,579 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 517 transitions. [2022-07-19 22:18:17,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:17,580 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 517 transitions. [2022-07-19 22:18:17,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-19 22:18:17,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:17,581 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:17,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:17,795 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 [2022-07-19 22:18:17,795 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:17,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1710084882, now seen corresponding path program 1 times [2022-07-19 22:18:17,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:17,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939266280] [2022-07-19 22:18:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:17,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:17,868 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:17,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689800984] [2022-07-19 22:18:17,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:17,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:17,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:17,870 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) [2022-07-19 22:18:17,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-19 22:18:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:18,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 38 conjunts are in the unsatisfiable core [2022-07-19 22:18:18,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:18,636 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 [2022-07-19 22:18:18,650 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-19 22:18:18,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:18,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:18,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939266280] [2022-07-19 22:18:18,651 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:18,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689800984] [2022-07-19 22:18:18,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689800984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:18,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:18,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 22:18:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343783253] [2022-07-19 22:18:18,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:18,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 22:18:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 22:18:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-07-19 22:18:18,653 INFO L87 Difference]: Start difference. First operand 375 states and 517 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-19 22:18:19,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:19,215 INFO L93 Difference]: Finished difference Result 779 states and 1109 transitions. [2022-07-19 22:18:19,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 22:18:19,216 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 270 [2022-07-19 22:18:19,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:19,219 INFO L225 Difference]: With dead ends: 779 [2022-07-19 22:18:19,219 INFO L226 Difference]: Without dead ends: 436 [2022-07-19 22:18:19,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-07-19 22:18:19,221 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 105 mSDsluCounter, 2543 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:19,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 2942 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 22:18:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-07-19 22:18:19,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 402. [2022-07-19 22:18:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 274 states have (on average 1.218978102189781) internal successors, (334), 276 states have internal predecessors, (334), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-19 22:18:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 560 transitions. [2022-07-19 22:18:19,244 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 560 transitions. Word has length 270 [2022-07-19 22:18:19,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:19,244 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 560 transitions. [2022-07-19 22:18:19,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 6 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2022-07-19 22:18:19,245 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 560 transitions. [2022-07-19 22:18:19,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-19 22:18:19,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:19,246 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:19,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:19,459 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 [2022-07-19 22:18:19,459 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:19,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1568152296, now seen corresponding path program 1 times [2022-07-19 22:18:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675264596] [2022-07-19 22:18:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:19,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:19,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:19,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697403160] [2022-07-19 22:18:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:19,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:19,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:19,517 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) [2022-07-19 22:18:19,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-19 22:18:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:20,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 3377 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:18:20,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:20,126 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-19 22:18:20,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:20,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:20,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675264596] [2022-07-19 22:18:20,126 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:20,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697403160] [2022-07-19 22:18:20,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697403160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:20,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:20,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:18:20,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208290885] [2022-07-19 22:18:20,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:20,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:18:20,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:20,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:18:20,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:18:20,128 INFO L87 Difference]: Start difference. First operand 402 states and 560 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:20,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:20,154 INFO L93 Difference]: Finished difference Result 760 states and 1076 transitions. [2022-07-19 22:18:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:18:20,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-19 22:18:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:20,157 INFO L225 Difference]: With dead ends: 760 [2022-07-19 22:18:20,157 INFO L226 Difference]: Without dead ends: 394 [2022-07-19 22:18:20,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:18:20,159 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 2 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:20,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1246 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:18:20,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-07-19 22:18:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 386. [2022-07-19 22:18:20,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.2015503875968991) internal successors, (310), 260 states have internal predecessors, (310), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-19 22:18:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 536 transitions. [2022-07-19 22:18:20,173 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 536 transitions. Word has length 270 [2022-07-19 22:18:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:20,174 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 536 transitions. [2022-07-19 22:18:20,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 536 transitions. [2022-07-19 22:18:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2022-07-19 22:18:20,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:20,176 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:20,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:20,387 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 [2022-07-19 22:18:20,387 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:20,389 INFO L85 PathProgramCache]: Analyzing trace with hash 659173160, now seen corresponding path program 1 times [2022-07-19 22:18:20,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:20,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414142934] [2022-07-19 22:18:20,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:20,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:20,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:20,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633420246] [2022-07-19 22:18:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:20,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:20,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:20,443 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) [2022-07-19 22:18:20,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-19 22:18:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:20,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 3367 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 22:18:21,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 205 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-19 22:18:21,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:18:21,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:21,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414142934] [2022-07-19 22:18:21,039 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:21,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633420246] [2022-07-19 22:18:21,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633420246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:18:21,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:18:21,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 22:18:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958204657] [2022-07-19 22:18:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:18:21,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 22:18:21,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 22:18:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 22:18:21,040 INFO L87 Difference]: Start difference. First operand 386 states and 536 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:21,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:18:21,091 INFO L93 Difference]: Finished difference Result 736 states and 1056 transitions. [2022-07-19 22:18:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 22:18:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 270 [2022-07-19 22:18:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:18:21,095 INFO L225 Difference]: With dead ends: 736 [2022-07-19 22:18:21,096 INFO L226 Difference]: Without dead ends: 386 [2022-07-19 22:18:21,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:18:21,099 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 7 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:18:21,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1249 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 22:18:21,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-07-19 22:18:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2022-07-19 22:18:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 258 states have (on average 1.197674418604651) internal successors, (309), 260 states have internal predecessors, (309), 99 states have call successors, (99), 24 states have call predecessors, (99), 27 states have return successors, (127), 101 states have call predecessors, (127), 97 states have call successors, (127) [2022-07-19 22:18:21,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 535 transitions. [2022-07-19 22:18:21,116 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 535 transitions. Word has length 270 [2022-07-19 22:18:21,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:18:21,117 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 535 transitions. [2022-07-19 22:18:21,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-19 22:18:21,117 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 535 transitions. [2022-07-19 22:18:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-07-19 22:18:21,119 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:18:21,119 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:18:21,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-19 22:18:21,335 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 [2022-07-19 22:18:21,335 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:18:21,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:18:21,336 INFO L85 PathProgramCache]: Analyzing trace with hash -692185156, now seen corresponding path program 1 times [2022-07-19 22:18:21,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:18:21,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919834336] [2022-07-19 22:18:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:18:21,403 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:18:21,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785779960] [2022-07-19 22:18:21,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:18:21,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:18:21,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:18:21,405 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) [2022-07-19 22:18:21,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-19 22:18:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:18:22,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 162 conjunts are in the unsatisfiable core [2022-07-19 22:18:22,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:18:22,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:18:22,447 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 22:18:22,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-07-19 22:18:22,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:22,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-19 22:18:24,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:24,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-19 22:18:24,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:24,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-19 22:18:25,764 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2911 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2911))) (exists ((v_ArrVal_2912 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2912)))) is different from true [2022-07-19 22:18:28,008 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2915))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2914))))) is different from true [2022-07-19 22:18:36,085 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2915 Int) (v_ArrVal_2914 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2915))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2914))))) is different from true [2022-07-19 22:18:36,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,374 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-19 22:18:36,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-19 22:18:36,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,420 INFO L356 Elim1Store]: treesize reduction 61, result has 37.1 percent of original size [2022-07-19 22:18:36,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 98 [2022-07-19 22:18:36,434 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-19 22:18:36,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-19 22:18:36,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-19 22:18:36,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-19 22:18:36,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-07-19 22:18:36,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-07-19 22:18:36,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22 [2022-07-19 22:18:36,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 12 [2022-07-19 22:18:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-19 22:18:36,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:18:36,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 34 [2022-07-19 22:18:46,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-19 22:18:46,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-07-19 22:18:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 260 proven. 31 refuted. 0 times theorem prover too weak. 153 trivial. 6 not checked. [2022-07-19 22:18:46,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:18:49,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:18:49,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919834336] [2022-07-19 22:18:49,609 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:18:49,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785779960] [2022-07-19 22:18:49,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785779960] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:18:49,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:18:49,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2022-07-19 22:18:49,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209395312] [2022-07-19 22:18:49,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:18:49,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-19 22:18:49,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:18:49,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-19 22:18:49,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1203, Unknown=22, NotChecked=216, Total=1560 [2022-07-19 22:18:49,612 INFO L87 Difference]: Start difference. First operand 386 states and 535 transitions. Second operand has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-19 22:19:14,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:14,724 INFO L93 Difference]: Finished difference Result 1135 states and 1765 transitions. [2022-07-19 22:19:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-19 22:19:14,724 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) Word has length 276 [2022-07-19 22:19:14,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:14,730 INFO L225 Difference]: With dead ends: 1135 [2022-07-19 22:19:14,730 INFO L226 Difference]: Without dead ends: 790 [2022-07-19 22:19:14,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 389 SyntacticMatches, 10 SemanticMatches, 58 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 883 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=256, Invalid=2889, Unknown=59, NotChecked=336, Total=3540 [2022-07-19 22:19:14,733 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 599 mSDsluCounter, 4281 mSDsCounter, 0 mSdLazyCounter, 3483 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 4795 SdHoareTripleChecker+Invalid, 10415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 3483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6295 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:14,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 4795 Invalid, 10415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 3483 Invalid, 0 Unknown, 6295 Unchecked, 2.3s Time] [2022-07-19 22:19:14,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-07-19 22:19:14,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 463. [2022-07-19 22:19:14,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 319 states have (on average 1.2037617554858935) internal successors, (384), 327 states have internal predecessors, (384), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 108 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-19 22:19:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 686 transitions. [2022-07-19 22:19:14,762 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 686 transitions. Word has length 276 [2022-07-19 22:19:14,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:14,762 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 686 transitions. [2022-07-19 22:19:14,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 31 states have (on average 4.419354838709677) internal successors, (137), 32 states have internal predecessors, (137), 14 states have call successors, (28), 8 states have call predecessors, (28), 13 states have return successors, (26), 13 states have call predecessors, (26), 14 states have call successors, (26) [2022-07-19 22:19:14,762 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 686 transitions. [2022-07-19 22:19:14,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-07-19 22:19:14,764 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:14,764 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:14,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:14,976 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 [2022-07-19 22:19:14,977 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:14,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:14,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2097513117, now seen corresponding path program 1 times [2022-07-19 22:19:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:14,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533023941] [2022-07-19 22:19:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:14,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 22:19:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 22:19:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 22:19:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:19:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-19 22:19:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-19 22:19:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 22:19:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 22:19:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-19 22:19:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 22:19:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-19 22:19:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-19 22:19:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-19 22:19:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 22:19:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-19 22:19:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-19 22:19:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-19 22:19:16,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-19 22:19:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 22:19:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 22:19:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 22:19:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 22 proven. 93 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2022-07-19 22:19:16,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:16,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533023941] [2022-07-19 22:19:16,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533023941] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:19:16,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129487831] [2022-07-19 22:19:16,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:16,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:16,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:16,813 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) [2022-07-19 22:19:16,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-19 22:19:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:17,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 3460 conjuncts, 42 conjunts are in the unsatisfiable core [2022-07-19 22:19:17,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:17,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-19 22:19:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 105 proven. 13 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-19 22:19:17,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:19:18,614 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-19 22:19:18,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129487831] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-19 22:19:18,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:19:18,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [18, 19] total 35 [2022-07-19 22:19:18,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006266312] [2022-07-19 22:19:18,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:19:18,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-19 22:19:18,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:18,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-19 22:19:18,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2022-07-19 22:19:18,615 INFO L87 Difference]: Start difference. First operand 463 states and 686 transitions. Second operand has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-19 22:19:18,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:18,859 INFO L93 Difference]: Finished difference Result 905 states and 1357 transitions. [2022-07-19 22:19:18,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 22:19:18,859 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) Word has length 318 [2022-07-19 22:19:18,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:18,862 INFO L225 Difference]: With dead ends: 905 [2022-07-19 22:19:18,862 INFO L226 Difference]: Without dead ends: 491 [2022-07-19 22:19:18,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 696 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=1314, Unknown=0, NotChecked=0, Total=1406 [2022-07-19 22:19:18,865 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 17 mSDsluCounter, 5592 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 6028 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:18,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 6028 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:19:18,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-19 22:19:18,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 471. [2022-07-19 22:19:18,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.198776758409786) internal successors, (392), 331 states have internal predecessors, (392), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (198), 112 states have call predecessors, (198), 102 states have call successors, (198) [2022-07-19 22:19:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 694 transitions. [2022-07-19 22:19:18,886 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 694 transitions. Word has length 318 [2022-07-19 22:19:18,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:18,886 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 694 transitions. [2022-07-19 22:19:18,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.928571428571429) internal successors, (111), 10 states have internal predecessors, (111), 2 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (25), 5 states have call predecessors, (25), 1 states have call successors, (25) [2022-07-19 22:19:18,887 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 694 transitions. [2022-07-19 22:19:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-19 22:19:18,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:18,889 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:18,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:19,103 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 [2022-07-19 22:19:19,103 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:19,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:19,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1860932141, now seen corresponding path program 1 times [2022-07-19 22:19:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:19,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169381963] [2022-07-19 22:19:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:19,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:19,169 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:19,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406110975] [2022-07-19 22:19:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:19,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:19,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:19,170 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) [2022-07-19 22:19:19,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-19 22:19:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:19,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 22:19:19,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-07-19 22:19:19,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:19:19,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:19,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169381963] [2022-07-19 22:19:19,871 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:19:19,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406110975] [2022-07-19 22:19:19,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406110975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:19:19,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:19:19,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:19:19,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120207038] [2022-07-19 22:19:19,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:19:19,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:19:19,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:19,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:19:19,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:19:19,873 INFO L87 Difference]: Start difference. First operand 471 states and 694 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-19 22:19:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:20,141 INFO L93 Difference]: Finished difference Result 898 states and 1366 transitions. [2022-07-19 22:19:20,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:19:20,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 286 [2022-07-19 22:19:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:20,144 INFO L225 Difference]: With dead ends: 898 [2022-07-19 22:19:20,144 INFO L226 Difference]: Without dead ends: 476 [2022-07-19 22:19:20,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:19:20,147 INFO L413 NwaCegarLoop]: 425 mSDtfsCounter, 15 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:20,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1596 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 22:19:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-07-19 22:19:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 471. [2022-07-19 22:19:20,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 327 states have (on average 1.1896024464831805) internal successors, (389), 331 states have internal predecessors, (389), 104 states have call successors, (104), 27 states have call predecessors, (104), 38 states have return successors, (187), 112 states have call predecessors, (187), 102 states have call successors, (187) [2022-07-19 22:19:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 680 transitions. [2022-07-19 22:19:20,167 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 680 transitions. Word has length 286 [2022-07-19 22:19:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:20,167 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 680 transitions. [2022-07-19 22:19:20,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-19 22:19:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 680 transitions. [2022-07-19 22:19:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-19 22:19:20,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:20,169 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:20,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:20,393 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 [2022-07-19 22:19:20,394 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:20,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1840960066, now seen corresponding path program 1 times [2022-07-19 22:19:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:20,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468221522] [2022-07-19 22:19:20,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:20,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:20,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:20,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080766010] [2022-07-19 22:19:20,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:20,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:20,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:20,453 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) [2022-07-19 22:19:20,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-19 22:19:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:21,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 22:19:21,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-07-19 22:19:21,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 22:19:21,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:21,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468221522] [2022-07-19 22:19:21,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:19:21,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080766010] [2022-07-19 22:19:21,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080766010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 22:19:21,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 22:19:21,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 22:19:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211114668] [2022-07-19 22:19:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 22:19:21,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 22:19:21,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:21,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 22:19:21,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 22:19:21,157 INFO L87 Difference]: Start difference. First operand 471 states and 680 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-19 22:19:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:21,360 INFO L93 Difference]: Finished difference Result 885 states and 1331 transitions. [2022-07-19 22:19:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 22:19:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 288 [2022-07-19 22:19:21,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:21,363 INFO L225 Difference]: With dead ends: 885 [2022-07-19 22:19:21,363 INFO L226 Difference]: Without dead ends: 463 [2022-07-19 22:19:21,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 22:19:21,366 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 7 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1603 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:21,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1603 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 22:19:21,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2022-07-19 22:19:21,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2022-07-19 22:19:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 318 states have (on average 1.1855345911949686) internal successors, (377), 320 states have internal predecessors, (377), 104 states have call successors, (104), 27 states have call predecessors, (104), 36 states have return successors, (174), 112 states have call predecessors, (174), 102 states have call successors, (174) [2022-07-19 22:19:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 655 transitions. [2022-07-19 22:19:21,385 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 655 transitions. Word has length 288 [2022-07-19 22:19:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:21,386 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 655 transitions. [2022-07-19 22:19:21,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-19 22:19:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 655 transitions. [2022-07-19 22:19:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-07-19 22:19:21,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:21,388 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:21,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:21,599 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 [2022-07-19 22:19:21,599 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:21,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2044016266, now seen corresponding path program 1 times [2022-07-19 22:19:21,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:21,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103078767] [2022-07-19 22:19:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:21,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:21,656 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635289126] [2022-07-19 22:19:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:21,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:21,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:21,657 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) [2022-07-19 22:19:21,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-07-19 22:19:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:22,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3450 conjuncts, 51 conjunts are in the unsatisfiable core [2022-07-19 22:19:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:22,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-19 22:19:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 262 proven. 10 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-07-19 22:19:22,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:19:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 9 proven. 93 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2022-07-19 22:19:23,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:23,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103078767] [2022-07-19 22:19:23,662 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:19:23,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635289126] [2022-07-19 22:19:23,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635289126] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:19:23,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:19:23,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 32 [2022-07-19 22:19:23,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114569451] [2022-07-19 22:19:23,662 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 22:19:23,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-19 22:19:23,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:23,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-19 22:19:23,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=920, Unknown=0, NotChecked=0, Total=992 [2022-07-19 22:19:23,663 INFO L87 Difference]: Start difference. First operand 460 states and 655 transitions. Second operand has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-19 22:19:24,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:24,828 INFO L93 Difference]: Finished difference Result 947 states and 1353 transitions. [2022-07-19 22:19:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-19 22:19:24,829 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) Word has length 292 [2022-07-19 22:19:24,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:24,832 INFO L225 Difference]: With dead ends: 947 [2022-07-19 22:19:24,832 INFO L226 Difference]: Without dead ends: 536 [2022-07-19 22:19:24,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 551 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1305, Unknown=0, NotChecked=0, Total=1406 [2022-07-19 22:19:24,834 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 42 mSDsluCounter, 10260 mSDsCounter, 0 mSdLazyCounter, 1581 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 10686 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:24,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 10686 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1581 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-19 22:19:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-07-19 22:19:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 496. [2022-07-19 22:19:24,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 352 states have (on average 1.1846590909090908) internal successors, (417), 351 states have internal predecessors, (417), 105 states have call successors, (105), 27 states have call predecessors, (105), 37 states have return successors, (180), 117 states have call predecessors, (180), 103 states have call successors, (180) [2022-07-19 22:19:24,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 702 transitions. [2022-07-19 22:19:24,854 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 702 transitions. Word has length 292 [2022-07-19 22:19:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:24,854 INFO L495 AbstractCegarLoop]: Abstraction has 496 states and 702 transitions. [2022-07-19 22:19:24,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 27 states have (on average 6.555555555555555) internal successors, (177), 23 states have internal predecessors, (177), 9 states have call successors, (39), 3 states have call predecessors, (39), 10 states have return successors, (41), 13 states have call predecessors, (41), 8 states have call successors, (41) [2022-07-19 22:19:24,854 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 702 transitions. [2022-07-19 22:19:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-19 22:19:24,856 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:24,856 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:24,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:25,085 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 [2022-07-19 22:19:25,085 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:25,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1694848783, now seen corresponding path program 1 times [2022-07-19 22:19:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:25,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172836238] [2022-07-19 22:19:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:25,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:25,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812641730] [2022-07-19 22:19:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:25,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:25,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:25,142 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) [2022-07-19 22:19:25,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-07-19 22:19:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:25,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 99 conjunts are in the unsatisfiable core [2022-07-19 22:19:25,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:25,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:19:26,188 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 22:19:26,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-07-19 22:19:28,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:19:28,157 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-19 22:19:32,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:19:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:19:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:19:32,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-19 22:19:32,908 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-19 22:19:32,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-07-19 22:19:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:19:32,971 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-19 22:19:33,164 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4103 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4103) |c_#memory_int|)) is different from true [2022-07-19 22:19:33,625 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 257 proven. 31 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-19 22:19:33,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:19:34,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:19:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172836238] [2022-07-19 22:19:34,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:19:34,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812641730] [2022-07-19 22:19:34,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812641730] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:19:34,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:19:34,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2022-07-19 22:19:34,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632652136] [2022-07-19 22:19:34,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:19:34,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-07-19 22:19:34,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:19:34,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-07-19 22:19:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=759, Unknown=14, NotChecked=56, Total=930 [2022-07-19 22:19:34,020 INFO L87 Difference]: Start difference. First operand 496 states and 702 transitions. Second operand has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-19 22:19:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:19:38,582 INFO L93 Difference]: Finished difference Result 1260 states and 1895 transitions. [2022-07-19 22:19:38,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-19 22:19:38,583 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) Word has length 288 [2022-07-19 22:19:38,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:19:38,588 INFO L225 Difference]: With dead ends: 1260 [2022-07-19 22:19:38,589 INFO L226 Difference]: Without dead ends: 818 [2022-07-19 22:19:38,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 414 SyntacticMatches, 11 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=152, Invalid=1228, Unknown=30, NotChecked=72, Total=1482 [2022-07-19 22:19:38,592 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 385 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 4159 SdHoareTripleChecker+Invalid, 8606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5173 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:19:38,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 4159 Invalid, 8606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 3018 Invalid, 0 Unknown, 5173 Unchecked, 2.2s Time] [2022-07-19 22:19:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2022-07-19 22:19:38,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 509. [2022-07-19 22:19:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 361 states have (on average 1.18005540166205) internal successors, (426), 361 states have internal predecessors, (426), 106 states have call successors, (106), 29 states have call predecessors, (106), 40 states have return successors, (185), 118 states have call predecessors, (185), 104 states have call successors, (185) [2022-07-19 22:19:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 717 transitions. [2022-07-19 22:19:38,647 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 717 transitions. Word has length 288 [2022-07-19 22:19:38,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:19:38,648 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 717 transitions. [2022-07-19 22:19:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 4.928571428571429) internal successors, (138), 25 states have internal predecessors, (138), 14 states have call successors, (29), 7 states have call predecessors, (29), 10 states have return successors, (27), 12 states have call predecessors, (27), 14 states have call successors, (27) [2022-07-19 22:19:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 717 transitions. [2022-07-19 22:19:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-07-19 22:19:38,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:19:38,650 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:19:38,682 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-07-19 22:19:38,863 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 [2022-07-19 22:19:38,863 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:19:38,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:19:38,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1520028329, now seen corresponding path program 1 times [2022-07-19 22:19:38,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:19:38,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191395033] [2022-07-19 22:19:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:38,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:19:38,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:19:38,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274619324] [2022-07-19 22:19:38,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:19:38,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:19:38,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:19:38,921 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) [2022-07-19 22:19:38,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-07-19 22:19:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:19:39,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 157 conjunts are in the unsatisfiable core [2022-07-19 22:19:39,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:19:39,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-07-19 22:19:41,985 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4352))))) is different from true [2022-07-19 22:19:43,997 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_4352))))) is different from true [2022-07-19 22:19:44,042 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:19:44,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-07-19 22:19:44,057 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:19:44,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2022-07-19 22:19:46,561 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4356))))) is different from true [2022-07-19 22:20:15,215 WARN L233 SmtUtils]: Spent 9.08s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:20:24,106 WARN L233 SmtUtils]: Spent 8.81s on a formula simplification that was a NOOP. DAG size: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:20:45,944 WARN L233 SmtUtils]: Spent 21.63s on a formula simplification. DAG size of input: 34 DAG size of output: 33 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:20:45,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-07-19 22:20:45,958 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2022-07-19 22:20:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 283 proven. 68 refuted. 15 times theorem prover too weak. 72 trivial. 19 not checked. [2022-07-19 22:20:46,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:20:49,361 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_4378 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int)) (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4378)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0)) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| Int) (v_ArrVal_4377 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_233|) 0 v_ArrVal_4377)) c_s_sift_up_~queue.base) (+ 40 c_s_sift_up_~queue.offset)) 0))) is different from false [2022-07-19 22:20:49,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:20:49,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191395033] [2022-07-19 22:20:49,363 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:20:49,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274619324] [2022-07-19 22:20:49,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274619324] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:20:49,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:20:49,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2022-07-19 22:20:49,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676005643] [2022-07-19 22:20:49,363 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:20:49,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-07-19 22:20:49,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:20:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-07-19 22:20:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1542, Unknown=7, NotChecked=324, Total=1980 [2022-07-19 22:20:49,364 INFO L87 Difference]: Start difference. First operand 509 states and 717 transitions. Second operand has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-19 22:20:52,543 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4354 Int) (v_ArrVal_4352 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4354)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4352))))) (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_4358 Int) (v_ArrVal_4356 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4358)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_4356)))))) is different from true [2022-07-19 22:21:10,457 WARN L233 SmtUtils]: Spent 9.11s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:21:22,419 WARN L233 SmtUtils]: Spent 9.81s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:21:33,281 WARN L233 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 22:21:49,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:21:49,272 INFO L93 Difference]: Finished difference Result 1477 states and 2238 transitions. [2022-07-19 22:21:49,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-07-19 22:21:49,273 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) Word has length 286 [2022-07-19 22:21:49,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:21:49,305 INFO L225 Difference]: With dead ends: 1477 [2022-07-19 22:21:49,305 INFO L226 Difference]: Without dead ends: 1029 [2022-07-19 22:21:49,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 331 SyntacticMatches, 8 SemanticMatches, 77 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1069 ImplicationChecksByTransitivity, 122.1s TimeCoverageRelationStatistics Valid=341, Invalid=5064, Unknown=17, NotChecked=740, Total=6162 [2022-07-19 22:21:49,309 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 436 mSDsluCounter, 10115 mSDsCounter, 0 mSdLazyCounter, 9005 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 10660 SdHoareTripleChecker+Invalid, 16871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 9005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7608 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-19 22:21:49,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 10660 Invalid, 16871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 9005 Invalid, 0 Unknown, 7608 Unchecked, 6.0s Time] [2022-07-19 22:21:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2022-07-19 22:21:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 849. [2022-07-19 22:21:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 611 states have (on average 1.1751227495908347) internal successors, (718), 612 states have internal predecessors, (718), 178 states have call successors, (178), 34 states have call predecessors, (178), 58 states have return successors, (420), 202 states have call predecessors, (420), 176 states have call successors, (420) [2022-07-19 22:21:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1316 transitions. [2022-07-19 22:21:49,350 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1316 transitions. Word has length 286 [2022-07-19 22:21:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:21:49,351 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1316 transitions. [2022-07-19 22:21:49,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 5.303030303030303) internal successors, (175), 36 states have internal predecessors, (175), 16 states have call successors, (33), 5 states have call predecessors, (33), 12 states have return successors, (31), 14 states have call predecessors, (31), 16 states have call successors, (31) [2022-07-19 22:21:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1316 transitions. [2022-07-19 22:21:49,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-19 22:21:49,355 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:21:49,355 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:21:49,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-07-19 22:21:49,569 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 [2022-07-19 22:21:49,570 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:21:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:21:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1387708210, now seen corresponding path program 1 times [2022-07-19 22:21:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:21:49,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117686890] [2022-07-19 22:21:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:21:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:21:49,616 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:21:49,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079840184] [2022-07-19 22:21:49,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:21:49,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:21:49,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:21:49,617 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) [2022-07-19 22:21:49,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-07-19 22:21:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:21:50,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 95 conjunts are in the unsatisfiable core [2022-07-19 22:21:50,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:21:50,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:21:50,568 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-19 22:21:50,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-07-19 22:21:52,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:21:52,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-19 22:21:53,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-19 22:21:53,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-19 22:21:58,059 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-19 22:21:58,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-07-19 22:21:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:21:58,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:21:58,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:21:58,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-07-19 22:21:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-19 22:21:58,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-07-19 22:21:58,327 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4627 (Array Int Int))) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_4627) |c_#memory_int|)) is different from true [2022-07-19 22:21:58,810 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 257 proven. 34 refuted. 3 times theorem prover too weak. 176 trivial. 0 not checked. [2022-07-19 22:21:58,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:21:59,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:21:59,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117686890] [2022-07-19 22:21:59,182 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:21:59,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079840184] [2022-07-19 22:21:59,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079840184] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 22:21:59,182 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-19 22:21:59,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2022-07-19 22:21:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814510967] [2022-07-19 22:21:59,183 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-19 22:21:59,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-19 22:21:59,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:21:59,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-19 22:21:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=702, Unknown=16, NotChecked=54, Total=870 [2022-07-19 22:21:59,184 INFO L87 Difference]: Start difference. First operand 849 states and 1316 transitions. Second operand has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-19 22:22:03,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:22:03,665 INFO L93 Difference]: Finished difference Result 1738 states and 2778 transitions. [2022-07-19 22:22:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 22:22:03,665 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) Word has length 293 [2022-07-19 22:22:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:22:03,671 INFO L225 Difference]: With dead ends: 1738 [2022-07-19 22:22:03,671 INFO L226 Difference]: Without dead ends: 1031 [2022-07-19 22:22:03,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 420 SyntacticMatches, 13 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=150, Invalid=1153, Unknown=33, NotChecked=70, Total=1406 [2022-07-19 22:22:03,675 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 406 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 7877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4455 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 22:22:03,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 3670 Invalid, 7877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 3002 Invalid, 0 Unknown, 4455 Unchecked, 2.2s Time] [2022-07-19 22:22:03,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2022-07-19 22:22:03,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 846. [2022-07-19 22:22:03,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 609 states have (on average 1.1756978653530377) internal successors, (716), 609 states have internal predecessors, (716), 178 states have call successors, (178), 34 states have call predecessors, (178), 57 states have return successors, (417), 202 states have call predecessors, (417), 176 states have call successors, (417) [2022-07-19 22:22:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1311 transitions. [2022-07-19 22:22:03,716 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1311 transitions. Word has length 293 [2022-07-19 22:22:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:22:03,716 INFO L495 AbstractCegarLoop]: Abstraction has 846 states and 1311 transitions. [2022-07-19 22:22:03,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.222222222222222) internal successors, (141), 25 states have internal predecessors, (141), 15 states have call successors, (30), 7 states have call predecessors, (30), 10 states have return successors, (28), 12 states have call predecessors, (28), 15 states have call successors, (28) [2022-07-19 22:22:03,717 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1311 transitions. [2022-07-19 22:22:03,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-19 22:22:03,721 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:22:03,721 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:22:03,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-07-19 22:22:03,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-07-19 22:22:03,935 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:22:03,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:22:03,936 INFO L85 PathProgramCache]: Analyzing trace with hash -2140330028, now seen corresponding path program 2 times [2022-07-19 22:22:03,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:22:03,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022706805] [2022-07-19 22:22:03,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:22:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:22:03,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:22:03,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499694351] [2022-07-19 22:22:03,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 22:22:03,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:22:03,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:22:03,982 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:22:03,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-07-19 22:22:06,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 22:22:06,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 22:22:06,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 3410 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-19 22:22:06,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:22:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 280 proven. 10 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-07-19 22:22:06,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 22:22:07,120 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 52 proven. 53 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-07-19 22:22:07,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 22:22:07,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022706805] [2022-07-19 22:22:07,121 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 22:22:07,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499694351] [2022-07-19 22:22:07,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499694351] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 22:22:07,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 22:22:07,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 18] total 26 [2022-07-19 22:22:07,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878487633] [2022-07-19 22:22:07,121 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 22:22:07,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-19 22:22:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 22:22:07,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-19 22:22:07,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-07-19 22:22:07,122 INFO L87 Difference]: Start difference. First operand 846 states and 1311 transitions. Second operand has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-19 22:22:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 22:22:07,714 INFO L93 Difference]: Finished difference Result 1555 states and 2417 transitions. [2022-07-19 22:22:07,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 22:22:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) Word has length 290 [2022-07-19 22:22:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 22:22:07,719 INFO L225 Difference]: With dead ends: 1555 [2022-07-19 22:22:07,719 INFO L226 Difference]: Without dead ends: 829 [2022-07-19 22:22:07,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 553 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2022-07-19 22:22:07,723 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 37 mSDsluCounter, 8061 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 8496 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 22:22:07,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 8496 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 22:22:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2022-07-19 22:22:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 811. [2022-07-19 22:22:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 583 states have (on average 1.169811320754717) internal successors, (682), 583 states have internal predecessors, (682), 170 states have call successors, (170), 34 states have call predecessors, (170), 56 states have return successors, (390), 193 states have call predecessors, (390), 168 states have call successors, (390) [2022-07-19 22:22:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1242 transitions. [2022-07-19 22:22:07,758 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1242 transitions. Word has length 290 [2022-07-19 22:22:07,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 22:22:07,758 INFO L495 AbstractCegarLoop]: Abstraction has 811 states and 1242 transitions. [2022-07-19 22:22:07,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 7.565217391304348) internal successors, (174), 17 states have internal predecessors, (174), 7 states have call successors, (32), 3 states have call predecessors, (32), 9 states have return successors, (35), 12 states have call predecessors, (35), 6 states have call successors, (35) [2022-07-19 22:22:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1242 transitions. [2022-07-19 22:22:07,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-19 22:22:07,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 22:22:07,762 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 22:22:07,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-07-19 22:22:07,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-07-19 22:22:07,975 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 22:22:07,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 22:22:07,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1221274755, now seen corresponding path program 1 times [2022-07-19 22:22:07,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 22:22:07,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147421072] [2022-07-19 22:22:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:22:07,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 22:22:08,039 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 22:22:08,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593804900] [2022-07-19 22:22:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 22:22:08,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 22:22:08,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 22:22:08,041 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 22:22:08,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-07-19 22:22:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 22:22:08,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 3441 conjuncts, 120 conjunts are in the unsatisfiable core [2022-07-19 22:22:08,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 22:22:11,011 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5064 Int) (v_ArrVal_5063 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5063))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5064))))) is different from true [2022-07-19 22:22:13,023 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5064 Int) (v_ArrVal_5063 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5064))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_5063)) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-19 22:22:13,062 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:22:13,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 42 [2022-07-19 22:22:13,079 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-07-19 22:22:13,079 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 36 [2022-07-19 22:22:15,465 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_5068 Int) (v_ArrVal_5066 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5066))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_5068))))) is different from true