./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:09:45,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:09:45,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:09:45,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:09:45,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:09:45,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:09:45,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:09:45,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:09:45,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:09:45,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:09:45,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:09:45,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:09:45,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:09:45,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:09:45,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:09:45,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:09:45,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:09:45,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:09:45,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:09:45,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:09:45,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:09:45,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:09:45,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:09:45,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:09:45,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:09:45,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:09:45,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:09:45,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:09:45,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:09:45,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:09:45,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:09:45,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:09:45,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:09:45,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:09:45,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:09:45,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:09:45,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:09:45,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:09:45,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:09:45,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:09:45,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:09:45,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:09:45,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:09:45,352 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:09:45,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:09:45,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:09:45,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:09:45,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:09:45,356 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:09:45,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:09:45,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:09:45,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:09:45,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:09:45,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:09:45,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:09:45,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:09:45,358 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:09:45,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:09:45,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:09:45,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:09:45,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:09:45,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:09:45,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:09:45,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:09:45,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:09:45,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:09:45,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:09:45,361 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:09:45,361 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:09:45,361 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:09:45,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:09:45,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-07 10:09:45,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:09:45,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:09:45,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:09:45,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:09:45,642 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:09:45,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:09:45,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cfb40aa1/c3ef9593a9604d1ca9204f55b8f79201/FLAG8ba6a53d4 [2021-11-07 10:09:46,383 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:09:46,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:09:46,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cfb40aa1/c3ef9593a9604d1ca9204f55b8f79201/FLAG8ba6a53d4 [2021-11-07 10:09:46,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cfb40aa1/c3ef9593a9604d1ca9204f55b8f79201 [2021-11-07 10:09:46,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:09:46,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:09:46,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:09:46,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:09:46,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:09:46,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:09:46" (1/1) ... [2021-11-07 10:09:46,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dcc43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:46, skipping insertion in model container [2021-11-07 10:09:46,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:09:46" (1/1) ... [2021-11-07 10:09:46,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:09:46,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:09:46,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-07 10:09:46,948 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-07 10:09:46,978 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:09:46,985 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:09:47,735 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,736 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,737 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,758 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,764 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,765 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:47,766 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,021 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:09:48,022 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:09:48,023 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:09:48,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:09:48,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:09:48,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:09:48,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:09:48,032 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:09:48,033 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:09:48,034 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:09:48,208 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:09:48,243 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,244 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,251 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,385 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,403 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:09:48,479 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:09:48,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-07 10:09:48,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-07 10:09:48,515 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:09:48,516 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:09:48,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:09:48,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:09:48,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:09:48,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:09:48,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:09:48,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:09:48,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:09:48,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:09:48,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:09:48,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:09:48,618 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:09:48,626 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,655 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,702 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,703 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,704 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,708 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,709 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:09:48,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:09:48,871 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:09:48,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48 WrapperNode [2021-11-07 10:09:48,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:09:48,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:09:48,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:09:48,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:09:48,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:48,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:09:49,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:09:49,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:09:49,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:09:49,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:09:49,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:09:49,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:09:49,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:09:49,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (1/1) ... [2021-11-07 10:09:49,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:09:49,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:09:49,711 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) [2021-11-07 10:09:49,720 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 [2021-11-07 10:09:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:09:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:09:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:09:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:09:49,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:09:49,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:09:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:09:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:09:49,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:09:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:09:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:09:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:10:08,716 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:10:08,717 INFO L299 CfgBuilder]: Removed 1637 assume(true) statements. [2021-11-07 10:10:08,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:10:08 BoogieIcfgContainer [2021-11-07 10:10:08,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:10:08,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:10:08,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:10:08,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:10:08,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:09:46" (1/3) ... [2021-11-07 10:10:08,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e67d0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:10:08, skipping insertion in model container [2021-11-07 10:10:08,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:09:48" (2/3) ... [2021-11-07 10:10:08,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e67d0f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:10:08, skipping insertion in model container [2021-11-07 10:10:08,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:10:08" (3/3) ... [2021-11-07 10:10:08,732 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:10:08,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:10:08,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-07 10:10:08,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:10:08,798 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:10:08,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-07 10:10:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:08,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 10:10:08,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:08,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:08,863 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:08,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash -771143003, now seen corresponding path program 1 times [2021-11-07 10:10:08,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:08,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337168994] [2021-11-07 10:10:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:08,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:09,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:09,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337168994] [2021-11-07 10:10:09,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337168994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:09,506 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:09,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:10:09,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397970908] [2021-11-07 10:10:09,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:09,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:10:09,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:10:09,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:10:09,544 INFO L87 Difference]: Start difference. First operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:09,690 INFO L93 Difference]: Finished difference Result 4116 states and 5719 transitions. [2021-11-07 10:10:09,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:10:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 10:10:09,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:09,732 INFO L225 Difference]: With dead ends: 4116 [2021-11-07 10:10:09,733 INFO L226 Difference]: Without dead ends: 2056 [2021-11-07 10:10:09,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:10:09,752 INFO L933 BasicCegarLoop]: 2660 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:09,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 12.12ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:10:09,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2021-11-07 10:10:09,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2021-11-07 10:10:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.326173826173826) internal successors, (2655), 2055 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2655 transitions. [2021-11-07 10:10:09,957 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2655 transitions. Word has length 41 [2021-11-07 10:10:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:09,958 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2655 transitions. [2021-11-07 10:10:09,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:09,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2655 transitions. [2021-11-07 10:10:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 10:10:09,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:09,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:09,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:10:09,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:09,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:09,969 INFO L85 PathProgramCache]: Analyzing trace with hash 890029669, now seen corresponding path program 1 times [2021-11-07 10:10:09,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:09,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952825772] [2021-11-07 10:10:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:09,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:10,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:10,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:10,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952825772] [2021-11-07 10:10:10,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952825772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:10,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:10,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:10:10,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531105566] [2021-11-07 10:10:10,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:10,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:10:10,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:10,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:10:10,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:10:10,304 INFO L87 Difference]: Start difference. First operand 2056 states and 2655 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:10,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:10,697 INFO L93 Difference]: Finished difference Result 4034 states and 5208 transitions. [2021-11-07 10:10:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:10:10,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 10:10:10,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:10,705 INFO L225 Difference]: With dead ends: 4034 [2021-11-07 10:10:10,705 INFO L226 Difference]: Without dead ends: 2058 [2021-11-07 10:10:10,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:10:10,710 INFO L933 BasicCegarLoop]: 2637 mSDtfsCounter, 2882 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 245.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 5004 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 269.16ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:10,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 5004 Invalid, 57 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 269.16ms Time] [2021-11-07 10:10:10,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2021-11-07 10:10:10,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2056. [2021-11-07 10:10:10,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3246753246753247) internal successors, (2652), 2055 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2652 transitions. [2021-11-07 10:10:10,757 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2652 transitions. Word has length 41 [2021-11-07 10:10:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:10,758 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2652 transitions. [2021-11-07 10:10:10,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2652 transitions. [2021-11-07 10:10:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 10:10:10,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:10,760 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:10,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:10:10,760 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:10,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1055647481, now seen corresponding path program 1 times [2021-11-07 10:10:10,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:10,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850913002] [2021-11-07 10:10:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:10,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:11,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:11,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850913002] [2021-11-07 10:10:11,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850913002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:11,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:11,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:10:11,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156967209] [2021-11-07 10:10:11,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:11,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:10:11,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:11,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:10:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:10:11,123 INFO L87 Difference]: Start difference. First operand 2056 states and 2652 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:14,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:14,085 INFO L93 Difference]: Finished difference Result 4157 states and 5359 transitions. [2021-11-07 10:10:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:10:14,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 10:10:14,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:14,092 INFO L225 Difference]: With dead ends: 4157 [2021-11-07 10:10:14,092 INFO L226 Difference]: Without dead ends: 2149 [2021-11-07 10:10:14,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 141.65ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:10:14,098 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 3201 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2473.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 6971 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.45ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2718.65ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:14,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 6971 Invalid, 688 Unknown, 0 Unchecked, 21.45ms Time], IncrementalHoareTripleChecker [17 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 2718.65ms Time] [2021-11-07 10:10:14,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2021-11-07 10:10:14,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2056. [2021-11-07 10:10:14,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3231768231768233) internal successors, (2649), 2055 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:14,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2649 transitions. [2021-11-07 10:10:14,131 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2649 transitions. Word has length 49 [2021-11-07 10:10:14,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:14,131 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2649 transitions. [2021-11-07 10:10:14,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:14,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2649 transitions. [2021-11-07 10:10:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 10:10:14,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:14,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:14,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:10:14,134 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1757033039, now seen corresponding path program 1 times [2021-11-07 10:10:14,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:14,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365962668] [2021-11-07 10:10:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:14,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:14,239 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:14,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031889074] [2021-11-07 10:10:14,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:14,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:14,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:14,243 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) [2021-11-07 10:10:14,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 10:10:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:14,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 10:10:14,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:15,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:15,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:15,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365962668] [2021-11-07 10:10:15,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:15,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031889074] [2021-11-07 10:10:15,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031889074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:15,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:15,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:10:15,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691010408] [2021-11-07 10:10:15,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:15,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:10:15,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:10:15,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:10:15,026 INFO L87 Difference]: Start difference. First operand 2056 states and 2649 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:15,076 INFO L93 Difference]: Finished difference Result 2179 states and 2815 transitions. [2021-11-07 10:10:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:10:15,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 10:10:15,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:15,084 INFO L225 Difference]: With dead ends: 2179 [2021-11-07 10:10:15,085 INFO L226 Difference]: Without dead ends: 2057 [2021-11-07 10:10:15,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:10:15,090 INFO L933 BasicCegarLoop]: 2648 mSDtfsCounter, 0 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5290 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.85ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:15,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5290 Invalid, 7 Unknown, 0 Unchecked, 3.75ms Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 24.85ms Time] [2021-11-07 10:10:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2057 states. [2021-11-07 10:10:15,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2057 to 2057. [2021-11-07 10:10:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3230154767848228) internal successors, (2650), 2056 states have internal predecessors, (2650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2650 transitions. [2021-11-07 10:10:15,136 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2650 transitions. Word has length 65 [2021-11-07 10:10:15,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:15,138 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2650 transitions. [2021-11-07 10:10:15,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2650 transitions. [2021-11-07 10:10:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 10:10:15,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:15,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:15,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 10:10:15,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:15,356 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:15,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:15,356 INFO L85 PathProgramCache]: Analyzing trace with hash 61465685, now seen corresponding path program 1 times [2021-11-07 10:10:15,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:15,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303995418] [2021-11-07 10:10:15,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:15,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:15,447 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:15,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041741977] [2021-11-07 10:10:15,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:15,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:15,464 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) [2021-11-07 10:10:15,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 10:10:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:16,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2660 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 10:10:16,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:16,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:16,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:16,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303995418] [2021-11-07 10:10:16,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:16,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041741977] [2021-11-07 10:10:16,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041741977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:16,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:16,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:10:16,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246733831] [2021-11-07 10:10:16,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:16,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:10:16,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:16,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:10:16,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:10:16,804 INFO L87 Difference]: Start difference. First operand 2057 states and 2650 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:18,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:18,565 INFO L93 Difference]: Finished difference Result 5594 states and 7164 transitions. [2021-11-07 10:10:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:10:18,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 10:10:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:18,576 INFO L225 Difference]: With dead ends: 5594 [2021-11-07 10:10:18,576 INFO L226 Difference]: Without dead ends: 3616 [2021-11-07 10:10:18,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 203.35ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:10:18,581 INFO L933 BasicCegarLoop]: 2523 mSDtfsCounter, 11627 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1345.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11627 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.46ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1475.35ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:18,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11627 Valid, 7063 Invalid, 424 Unknown, 0 Unchecked, 25.46ms Time], IncrementalHoareTripleChecker [17 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1475.35ms Time] [2021-11-07 10:10:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2021-11-07 10:10:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 2057. [2021-11-07 10:10:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3215177234148776) internal successors, (2647), 2056 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:18,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2647 transitions. [2021-11-07 10:10:18,631 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2647 transitions. Word has length 73 [2021-11-07 10:10:18,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:18,631 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2647 transitions. [2021-11-07 10:10:18,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2647 transitions. [2021-11-07 10:10:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 10:10:18,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:18,632 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:18,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-07 10:10:18,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:18,856 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1420657039, now seen corresponding path program 1 times [2021-11-07 10:10:18,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:18,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700502362] [2021-11-07 10:10:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:18,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:18,940 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:18,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988109825] [2021-11-07 10:10:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:18,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:18,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:18,956 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) [2021-11-07 10:10:18,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 10:10:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:19,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 2765 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:10:19,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:20,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:20,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:20,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700502362] [2021-11-07 10:10:20,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:20,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988109825] [2021-11-07 10:10:20,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988109825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:20,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:20,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:10:20,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700581996] [2021-11-07 10:10:20,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:20,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:10:20,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:20,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:10:20,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:10:20,261 INFO L87 Difference]: Start difference. First operand 2057 states and 2647 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:24,260 INFO L93 Difference]: Finished difference Result 8487 states and 10773 transitions. [2021-11-07 10:10:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:10:24,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-07 10:10:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:24,287 INFO L225 Difference]: With dead ends: 8487 [2021-11-07 10:10:24,287 INFO L226 Difference]: Without dead ends: 6493 [2021-11-07 10:10:24,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 223.57ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:10:24,295 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 14361 mSDsluCounter, 8358 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3213.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14361 SdHoareTripleChecker+Valid, 10947 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.88ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3526.39ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:24,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14361 Valid, 10947 Invalid, 812 Unknown, 0 Unchecked, 34.88ms Time], IncrementalHoareTripleChecker [56 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 3526.39ms Time] [2021-11-07 10:10:24,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2021-11-07 10:10:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 2057. [2021-11-07 10:10:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3200199700449327) internal successors, (2644), 2056 states have internal predecessors, (2644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2644 transitions. [2021-11-07 10:10:24,397 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2644 transitions. Word has length 97 [2021-11-07 10:10:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:24,398 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2644 transitions. [2021-11-07 10:10:24,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2644 transitions. [2021-11-07 10:10:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 10:10:24,400 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:24,400 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:24,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:24,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:24,616 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:24,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:24,616 INFO L85 PathProgramCache]: Analyzing trace with hash 883061289, now seen corresponding path program 1 times [2021-11-07 10:10:24,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:24,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433735952] [2021-11-07 10:10:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:24,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:24,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:24,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [691376485] [2021-11-07 10:10:24,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:24,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:24,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:24,712 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) [2021-11-07 10:10:24,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 10:10:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:25,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:10:25,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:26,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:26,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:26,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433735952] [2021-11-07 10:10:26,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:26,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691376485] [2021-11-07 10:10:26,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691376485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:26,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:26,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:10:26,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054845252] [2021-11-07 10:10:26,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:26,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:10:26,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:26,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:10:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:10:26,433 INFO L87 Difference]: Start difference. First operand 2057 states and 2644 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:27,659 INFO L93 Difference]: Finished difference Result 4450 states and 5708 transitions. [2021-11-07 10:10:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:10:27,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 10:10:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:27,669 INFO L225 Difference]: With dead ends: 4450 [2021-11-07 10:10:27,670 INFO L226 Difference]: Without dead ends: 2589 [2021-11-07 10:10:27,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 229.66ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:10:27,674 INFO L933 BasicCegarLoop]: 2528 mSDtfsCounter, 10889 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 878.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10889 SdHoareTripleChecker+Valid, 4673 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.54ms SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 964.07ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:27,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10889 Valid, 4673 Invalid, 241 Unknown, 0 Unchecked, 12.54ms Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 964.07ms Time] [2021-11-07 10:10:27,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2021-11-07 10:10:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2057. [2021-11-07 10:10:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3185222166749875) internal successors, (2641), 2056 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2641 transitions. [2021-11-07 10:10:27,744 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2641 transitions. Word has length 113 [2021-11-07 10:10:27,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:27,745 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2641 transitions. [2021-11-07 10:10:27,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2641 transitions. [2021-11-07 10:10:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 10:10:27,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:27,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:27,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:27,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:27,952 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:27,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1442612120, now seen corresponding path program 1 times [2021-11-07 10:10:27,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:27,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722525784] [2021-11-07 10:10:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:27,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:28,034 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:28,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118955772] [2021-11-07 10:10:28,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:28,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:28,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:28,036 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) [2021-11-07 10:10:28,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 10:10:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:28,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 10:10:28,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:29,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:29,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:29,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722525784] [2021-11-07 10:10:29,765 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:29,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118955772] [2021-11-07 10:10:29,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118955772] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:29,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:29,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:10:29,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310827425] [2021-11-07 10:10:29,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:29,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:10:29,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:29,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:10:29,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:10:29,766 INFO L87 Difference]: Start difference. First operand 2057 states and 2641 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:33,161 INFO L93 Difference]: Finished difference Result 5356 states and 6827 transitions. [2021-11-07 10:10:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 10:10:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-07 10:10:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:33,174 INFO L225 Difference]: With dead ends: 5356 [2021-11-07 10:10:33,174 INFO L226 Difference]: Without dead ends: 3463 [2021-11-07 10:10:33,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 302.09ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:10:33,179 INFO L933 BasicCegarLoop]: 2576 mSDtfsCounter, 10912 mSDsluCounter, 4165 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2687.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10912 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.22ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2958.19ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:33,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10912 Valid, 6741 Invalid, 719 Unknown, 0 Unchecked, 25.22ms Time], IncrementalHoareTripleChecker [44 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 2958.19ms Time] [2021-11-07 10:10:33,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2021-11-07 10:10:33,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 2057. [2021-11-07 10:10:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3170244633050425) internal successors, (2638), 2056 states have internal predecessors, (2638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2638 transitions. [2021-11-07 10:10:33,255 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2638 transitions. Word has length 117 [2021-11-07 10:10:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:33,256 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2638 transitions. [2021-11-07 10:10:33,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2638 transitions. [2021-11-07 10:10:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 10:10:33,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:33,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:33,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:33,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:33,482 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1184403276, now seen corresponding path program 1 times [2021-11-07 10:10:33,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:33,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87216354] [2021-11-07 10:10:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:33,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:33,561 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:33,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718280198] [2021-11-07 10:10:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:33,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:33,562 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) [2021-11-07 10:10:33,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 10:10:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:34,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 3081 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 10:10:34,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:35,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:35,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:35,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:35,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87216354] [2021-11-07 10:10:35,427 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:35,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718280198] [2021-11-07 10:10:35,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718280198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:35,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:35,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:10:35,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480621214] [2021-11-07 10:10:35,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:35,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:10:35,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:35,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:10:35,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:10:35,429 INFO L87 Difference]: Start difference. First operand 2057 states and 2638 transitions. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:37,832 INFO L93 Difference]: Finished difference Result 5936 states and 7570 transitions. [2021-11-07 10:10:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:10:37,833 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-07 10:10:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:37,850 INFO L225 Difference]: With dead ends: 5936 [2021-11-07 10:10:37,850 INFO L226 Difference]: Without dead ends: 4074 [2021-11-07 10:10:37,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 429.94ms TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:10:37,859 INFO L933 BasicCegarLoop]: 2480 mSDtfsCounter, 19459 mSDsluCounter, 4194 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1688.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19459 SdHoareTripleChecker+Valid, 6674 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.84ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1867.49ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:37,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19459 Valid, 6674 Invalid, 457 Unknown, 0 Unchecked, 24.84ms Time], IncrementalHoareTripleChecker [51 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 1867.49ms Time] [2021-11-07 10:10:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4074 states. [2021-11-07 10:10:37,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4074 to 2057. [2021-11-07 10:10:37,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3155267099350973) internal successors, (2635), 2056 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:37,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2635 transitions. [2021-11-07 10:10:37,934 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2635 transitions. Word has length 125 [2021-11-07 10:10:37,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:37,935 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2635 transitions. [2021-11-07 10:10:37,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:37,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2635 transitions. [2021-11-07 10:10:37,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 10:10:37,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:37,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:37,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:38,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:38,164 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:38,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:38,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1283216539, now seen corresponding path program 1 times [2021-11-07 10:10:38,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:38,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433901760] [2021-11-07 10:10:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:38,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:38,239 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:38,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903323244] [2021-11-07 10:10:38,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:38,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:38,241 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) [2021-11-07 10:10:38,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 10:10:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:39,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 10:10:39,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:40,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:40,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:40,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433901760] [2021-11-07 10:10:40,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:40,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903323244] [2021-11-07 10:10:40,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903323244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:40,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:40,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:10:40,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066584921] [2021-11-07 10:10:40,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:40,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:10:40,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:40,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:10:40,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:10:40,290 INFO L87 Difference]: Start difference. First operand 2057 states and 2635 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:45,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:45,642 INFO L93 Difference]: Finished difference Result 5964 states and 7602 transitions. [2021-11-07 10:10:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 10:10:45,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-07 10:10:45,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:45,651 INFO L225 Difference]: With dead ends: 5964 [2021-11-07 10:10:45,651 INFO L226 Difference]: Without dead ends: 4086 [2021-11-07 10:10:45,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 714.54ms TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-11-07 10:10:45,654 INFO L933 BasicCegarLoop]: 2417 mSDtfsCounter, 19893 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4023.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19893 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.86ms SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4442.05ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:45,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19893 Valid, 8247 Invalid, 1145 Unknown, 0 Unchecked, 38.86ms Time], IncrementalHoareTripleChecker [123 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 4442.05ms Time] [2021-11-07 10:10:45,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4086 states. [2021-11-07 10:10:45,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4086 to 2057. [2021-11-07 10:10:45,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3140289565651522) internal successors, (2632), 2056 states have internal predecessors, (2632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2632 transitions. [2021-11-07 10:10:45,720 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2632 transitions. Word has length 137 [2021-11-07 10:10:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:45,720 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2632 transitions. [2021-11-07 10:10:45,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2632 transitions. [2021-11-07 10:10:45,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-07 10:10:45,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:45,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:45,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:45,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:45,932 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:45,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:45,932 INFO L85 PathProgramCache]: Analyzing trace with hash -561648695, now seen corresponding path program 1 times [2021-11-07 10:10:45,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:45,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893370590] [2021-11-07 10:10:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:45,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:46,009 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:46,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570646234] [2021-11-07 10:10:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:46,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:46,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:46,011 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) [2021-11-07 10:10:46,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 10:10:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:46,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:10:46,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:48,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:48,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:48,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893370590] [2021-11-07 10:10:48,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:48,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570646234] [2021-11-07 10:10:48,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570646234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:48,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:48,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:10:48,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684563078] [2021-11-07 10:10:48,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:48,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:10:48,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:10:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:10:48,033 INFO L87 Difference]: Start difference. First operand 2057 states and 2632 transitions. Second operand has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:50,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:50,278 INFO L93 Difference]: Finished difference Result 5844 states and 7469 transitions. [2021-11-07 10:10:50,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 10:10:50,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-07 10:10:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:50,288 INFO L225 Difference]: With dead ends: 5844 [2021-11-07 10:10:50,289 INFO L226 Difference]: Without dead ends: 3992 [2021-11-07 10:10:50,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 387.77ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:10:50,293 INFO L933 BasicCegarLoop]: 3692 mSDtfsCounter, 15132 mSDsluCounter, 4127 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1588.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15132 SdHoareTripleChecker+Valid, 7819 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.61ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1760.42ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:50,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15132 Valid, 7819 Invalid, 415 Unknown, 0 Unchecked, 20.61ms Time], IncrementalHoareTripleChecker [39 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 1760.42ms Time] [2021-11-07 10:10:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2021-11-07 10:10:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 2057. [2021-11-07 10:10:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3130304543185223) internal successors, (2630), 2056 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2630 transitions. [2021-11-07 10:10:50,391 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2630 transitions. Word has length 145 [2021-11-07 10:10:50,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:50,392 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2630 transitions. [2021-11-07 10:10:50,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:50,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2630 transitions. [2021-11-07 10:10:50,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-07 10:10:50,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:50,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:50,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:50,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-07 10:10:50,612 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:50,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:50,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1953947592, now seen corresponding path program 1 times [2021-11-07 10:10:50,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:50,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099108673] [2021-11-07 10:10:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:50,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:50,702 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:50,702 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554806403] [2021-11-07 10:10:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:50,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:50,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:50,706 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) [2021-11-07 10:10:50,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 10:10:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:51,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 3257 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 10:10:51,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:52,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:10:52,796 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:52,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:52,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099108673] [2021-11-07 10:10:52,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:52,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554806403] [2021-11-07 10:10:52,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554806403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:52,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:52,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:10:52,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77198165] [2021-11-07 10:10:52,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:52,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:10:52,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:52,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:10:52,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:10:52,797 INFO L87 Difference]: Start difference. First operand 2057 states and 2630 transitions. Second operand has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:58,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:58,563 INFO L93 Difference]: Finished difference Result 6750 states and 8586 transitions. [2021-11-07 10:10:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 10:10:58,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-11-07 10:10:58,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:58,574 INFO L225 Difference]: With dead ends: 6750 [2021-11-07 10:10:58,574 INFO L226 Difference]: Without dead ends: 4898 [2021-11-07 10:10:58,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 487.19ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:10:58,579 INFO L933 BasicCegarLoop]: 3889 mSDtfsCounter, 13901 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4463.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13901 SdHoareTripleChecker+Valid, 11001 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.57ms SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4986.52ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:58,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13901 Valid, 11001 Invalid, 1139 Unknown, 0 Unchecked, 39.57ms Time], IncrementalHoareTripleChecker [53 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 4986.52ms Time] [2021-11-07 10:10:58,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2021-11-07 10:10:58,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 2057. [2021-11-07 10:10:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.311033449825262) internal successors, (2626), 2056 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:58,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2626 transitions. [2021-11-07 10:10:58,687 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2626 transitions. Word has length 149 [2021-11-07 10:10:58,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:58,687 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2626 transitions. [2021-11-07 10:10:58,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.285714285714285) internal successors, (149), 7 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:10:58,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2626 transitions. [2021-11-07 10:10:58,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-07 10:10:58,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:58,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:10:58,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:58,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:58,905 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:10:58,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:58,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1844158272, now seen corresponding path program 1 times [2021-11-07 10:10:58,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:58,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924946602] [2021-11-07 10:10:58,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:58,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:58,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:58,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742849660] [2021-11-07 10:10:58,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:58,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:58,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:58,978 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) [2021-11-07 10:10:58,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 10:10:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:59,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 3251 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 10:10:59,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:01,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:01,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:01,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924946602] [2021-11-07 10:11:01,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:01,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742849660] [2021-11-07 10:11:01,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742849660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:01,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:01,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:11:01,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308572043] [2021-11-07 10:11:01,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:01,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:11:01,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:01,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:11:01,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:11:01,178 INFO L87 Difference]: Start difference. First operand 2057 states and 2626 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:05,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:05,107 INFO L93 Difference]: Finished difference Result 3396 states and 4344 transitions. [2021-11-07 10:11:05,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:11:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-11-07 10:11:05,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:05,113 INFO L225 Difference]: With dead ends: 3396 [2021-11-07 10:11:05,114 INFO L226 Difference]: Without dead ends: 2381 [2021-11-07 10:11:05,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 349.62ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:11:05,122 INFO L933 BasicCegarLoop]: 2720 mSDtfsCounter, 7281 mSDsluCounter, 6192 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3129.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7281 SdHoareTripleChecker+Valid, 8912 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.19ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3492.85ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:05,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7281 Valid, 8912 Invalid, 783 Unknown, 0 Unchecked, 27.19ms Time], IncrementalHoareTripleChecker [18 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 3492.85ms Time] [2021-11-07 10:11:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2021-11-07 10:11:05,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2057. [2021-11-07 10:11:05,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.308537194208687) internal successors, (2621), 2056 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2621 transitions. [2021-11-07 10:11:05,207 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2621 transitions. Word has length 150 [2021-11-07 10:11:05,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:05,208 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2621 transitions. [2021-11-07 10:11:05,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2621 transitions. [2021-11-07 10:11:05,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-07 10:11:05,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:05,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:05,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:05,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-07 10:11:05,436 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:05,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:05,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1758983980, now seen corresponding path program 1 times [2021-11-07 10:11:05,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:05,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480187419] [2021-11-07 10:11:05,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:05,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:05,557 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:05,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989546536] [2021-11-07 10:11:05,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:05,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:05,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:05,559 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) [2021-11-07 10:11:05,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 10:11:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:06,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 10:11:06,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:07,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:07,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:07,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480187419] [2021-11-07 10:11:07,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:07,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989546536] [2021-11-07 10:11:07,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989546536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:07,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:07,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:11:07,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874032619] [2021-11-07 10:11:07,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:07,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:11:07,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:11:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:11:07,676 INFO L87 Difference]: Start difference. First operand 2057 states and 2621 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:11,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:11,443 INFO L93 Difference]: Finished difference Result 7709 states and 9778 transitions. [2021-11-07 10:11:11,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 10:11:11,445 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-07 10:11:11,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:11,456 INFO L225 Difference]: With dead ends: 7709 [2021-11-07 10:11:11,457 INFO L226 Difference]: Without dead ends: 5857 [2021-11-07 10:11:11,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 624.86ms TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-11-07 10:11:11,463 INFO L933 BasicCegarLoop]: 3613 mSDtfsCounter, 23631 mSDsluCounter, 6609 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2586.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23631 SdHoareTripleChecker+Valid, 10222 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.43ms SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2880.72ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:11,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23631 Valid, 10222 Invalid, 751 Unknown, 0 Unchecked, 34.43ms Time], IncrementalHoareTripleChecker [100 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 2880.72ms Time] [2021-11-07 10:11:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5857 states. [2021-11-07 10:11:11,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5857 to 2057. [2021-11-07 10:11:11,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2057 states, 2003 states have (on average 1.3075386919620569) internal successors, (2619), 2056 states have internal predecessors, (2619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:11,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2057 states to 2057 states and 2619 transitions. [2021-11-07 10:11:11,586 INFO L78 Accepts]: Start accepts. Automaton has 2057 states and 2619 transitions. Word has length 157 [2021-11-07 10:11:11,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:11,586 INFO L470 AbstractCegarLoop]: Abstraction has 2057 states and 2619 transitions. [2021-11-07 10:11:11,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 7 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:11,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2057 states and 2619 transitions. [2021-11-07 10:11:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 10:11:11,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:11,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:11,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:11,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-07 10:11:11,804 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:11,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:11,804 INFO L85 PathProgramCache]: Analyzing trace with hash 748769034, now seen corresponding path program 1 times [2021-11-07 10:11:11,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:11,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023088770] [2021-11-07 10:11:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:11,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:11,891 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:11,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751556447] [2021-11-07 10:11:11,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:11,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:11,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:11,908 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) [2021-11-07 10:11:11,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 10:11:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:12,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:11:12,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:13,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:13,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:13,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023088770] [2021-11-07 10:11:13,108 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:13,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751556447] [2021-11-07 10:11:13,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751556447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:13,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:13,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:11:13,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645351924] [2021-11-07 10:11:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:13,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:11:13,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:13,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:11:13,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:11:13,110 INFO L87 Difference]: Start difference. First operand 2057 states and 2619 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:18,178 INFO L93 Difference]: Finished difference Result 4452 states and 5720 transitions. [2021-11-07 10:11:18,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:11:18,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-07 10:11:18,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:18,184 INFO L225 Difference]: With dead ends: 4452 [2021-11-07 10:11:18,184 INFO L226 Difference]: Without dead ends: 2442 [2021-11-07 10:11:18,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:11:18,189 INFO L933 BasicCegarLoop]: 2861 mSDtfsCounter, 578 mSDsluCounter, 4158 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4341.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 7019 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.38ms SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4840.90ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:18,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 7019 Invalid, 1447 Unknown, 0 Unchecked, 27.38ms Time], IncrementalHoareTripleChecker [305 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 4840.90ms Time] [2021-11-07 10:11:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2021-11-07 10:11:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2211. [2021-11-07 10:11:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2157 states have (on average 1.285581826611034) internal successors, (2773), 2210 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2773 transitions. [2021-11-07 10:11:18,283 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2773 transitions. Word has length 166 [2021-11-07 10:11:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:18,283 INFO L470 AbstractCegarLoop]: Abstraction has 2211 states and 2773 transitions. [2021-11-07 10:11:18,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2773 transitions. [2021-11-07 10:11:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 10:11:18,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:18,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:18,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-07 10:11:18,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 10:11:18,503 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1857254520, now seen corresponding path program 1 times [2021-11-07 10:11:18,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:18,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287455809] [2021-11-07 10:11:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:18,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:18,565 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:18,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524545481] [2021-11-07 10:11:18,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:18,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:18,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:18,567 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) [2021-11-07 10:11:18,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 10:11:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:19,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 3441 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:11:19,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:20,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:20,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:20,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287455809] [2021-11-07 10:11:20,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:20,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524545481] [2021-11-07 10:11:20,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524545481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:20,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:20,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:11:20,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614282067] [2021-11-07 10:11:20,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:20,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:11:20,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:20,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:11:20,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:11:20,209 INFO L87 Difference]: Start difference. First operand 2211 states and 2773 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:22,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:24,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:26,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:43,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:43,119 INFO L93 Difference]: Finished difference Result 6154 states and 7706 transitions. [2021-11-07 10:11:43,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:11:43,121 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-07 10:11:43,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:43,132 INFO L225 Difference]: With dead ends: 6154 [2021-11-07 10:11:43,133 INFO L226 Difference]: Without dead ends: 4016 [2021-11-07 10:11:43,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 498.05ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:11:43,138 INFO L933 BasicCegarLoop]: 3785 mSDtfsCounter, 2031 mSDsluCounter, 12249 mSDsCounter, 0 mSdLazyCounter, 3717 mSolverCounterSat, 91 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19930.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 16034 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.99ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3717 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22114.29ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:43,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2031 Valid, 16034 Invalid, 3811 Unknown, 0 Unchecked, 48.99ms Time], IncrementalHoareTripleChecker [91 Valid, 3717 Invalid, 3 Unknown, 0 Unchecked, 22114.29ms Time] [2021-11-07 10:11:43,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2021-11-07 10:11:43,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 2259. [2021-11-07 10:11:43,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2259 states, 2205 states have (on average 1.2848072562358277) internal successors, (2833), 2258 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:43,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2259 states to 2259 states and 2833 transitions. [2021-11-07 10:11:43,272 INFO L78 Accepts]: Start accepts. Automaton has 2259 states and 2833 transitions. Word has length 166 [2021-11-07 10:11:43,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:43,272 INFO L470 AbstractCegarLoop]: Abstraction has 2259 states and 2833 transitions. [2021-11-07 10:11:43,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:43,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2259 states and 2833 transitions. [2021-11-07 10:11:43,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 10:11:43,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:43,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:43,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:43,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 10:11:43,492 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:43,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:43,493 INFO L85 PathProgramCache]: Analyzing trace with hash -76596988, now seen corresponding path program 1 times [2021-11-07 10:11:43,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:43,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681332529] [2021-11-07 10:11:43,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:43,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:43,601 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:43,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [534447219] [2021-11-07 10:11:43,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:43,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:43,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:43,608 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) [2021-11-07 10:11:43,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 10:11:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:44,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 3435 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:11:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:45,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:45,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:45,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:45,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681332529] [2021-11-07 10:11:45,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:45,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534447219] [2021-11-07 10:11:45,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534447219] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:45,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:45,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:11:45,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173385621] [2021-11-07 10:11:45,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:45,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:11:45,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:45,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:11:45,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:11:45,020 INFO L87 Difference]: Start difference. First operand 2259 states and 2833 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:45,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:45,759 INFO L93 Difference]: Finished difference Result 4487 states and 5628 transitions. [2021-11-07 10:11:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:11:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-07 10:11:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:45,763 INFO L225 Difference]: With dead ends: 4487 [2021-11-07 10:11:45,763 INFO L226 Difference]: Without dead ends: 2307 [2021-11-07 10:11:45,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 99.91ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:11:45,766 INFO L933 BasicCegarLoop]: 2594 mSDtfsCounter, 32 mSDsluCounter, 5104 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 563.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7698 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.93ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 614.11ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:45,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 7698 Invalid, 209 Unknown, 0 Unchecked, 4.93ms Time], IncrementalHoareTripleChecker [45 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 614.11ms Time] [2021-11-07 10:11:45,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2021-11-07 10:11:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2283. [2021-11-07 10:11:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2229 states have (on average 1.281740690892777) internal successors, (2857), 2282 states have internal predecessors, (2857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2857 transitions. [2021-11-07 10:11:45,848 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2857 transitions. Word has length 166 [2021-11-07 10:11:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:45,849 INFO L470 AbstractCegarLoop]: Abstraction has 2283 states and 2857 transitions. [2021-11-07 10:11:45,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2857 transitions. [2021-11-07 10:11:45,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 10:11:45,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:45,851 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:45,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:46,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:46,064 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:46,064 INFO L85 PathProgramCache]: Analyzing trace with hash -266922624, now seen corresponding path program 1 times [2021-11-07 10:11:46,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:46,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402377954] [2021-11-07 10:11:46,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:46,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:46,126 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:46,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148539521] [2021-11-07 10:11:46,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:46,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:46,129 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) [2021-11-07 10:11:46,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 10:11:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:46,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 3425 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 10:11:46,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:47,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:47,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:47,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402377954] [2021-11-07 10:11:47,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:47,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148539521] [2021-11-07 10:11:47,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148539521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:47,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:47,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:11:47,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805228910] [2021-11-07 10:11:47,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:47,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:11:47,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:47,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:11:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:11:47,554 INFO L87 Difference]: Start difference. First operand 2283 states and 2857 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:48,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:48,948 INFO L93 Difference]: Finished difference Result 6422 states and 8018 transitions. [2021-11-07 10:11:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:11:48,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-07 10:11:48,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:48,954 INFO L225 Difference]: With dead ends: 6422 [2021-11-07 10:11:48,954 INFO L226 Difference]: Without dead ends: 4227 [2021-11-07 10:11:48,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.81ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:11:48,958 INFO L933 BasicCegarLoop]: 4755 mSDtfsCounter, 2323 mSDsluCounter, 11810 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1019.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 16565 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.51ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1158.07ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:48,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 16565 Invalid, 333 Unknown, 0 Unchecked, 12.51ms Time], IncrementalHoareTripleChecker [56 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1158.07ms Time] [2021-11-07 10:11:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4227 states. [2021-11-07 10:11:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4227 to 2379. [2021-11-07 10:11:49,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 2325 states have (on average 1.2804301075268818) internal successors, (2977), 2378 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2977 transitions. [2021-11-07 10:11:49,046 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2977 transitions. Word has length 166 [2021-11-07 10:11:49,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:49,046 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 2977 transitions. [2021-11-07 10:11:49,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:11:49,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2977 transitions. [2021-11-07 10:11:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-07 10:11:49,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:49,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:11:49,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:49,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 10:11:49,263 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:11:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1151624642, now seen corresponding path program 1 times [2021-11-07 10:11:49,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:49,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73404366] [2021-11-07 10:11:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:49,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:49,328 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:49,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970242935] [2021-11-07 10:11:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:49,329 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:49,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:49,330 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) [2021-11-07 10:11:49,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 10:11:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:50,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 3422 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-07 10:11:50,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:52,418 INFO L388 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 [2021-11-07 10:11:52,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-07 10:11:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:11:52,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:52,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:52,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73404366] [2021-11-07 10:11:52,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:52,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970242935] [2021-11-07 10:11:52,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970242935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:52,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:52,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 10:11:52,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601097912] [2021-11-07 10:11:52,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:52,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 10:11:52,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 10:11:52,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:11:52,899 INFO L87 Difference]: Start difference. First operand 2379 states and 2977 transitions. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:08,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:12:08,260 INFO L93 Difference]: Finished difference Result 6973 states and 8722 transitions. [2021-11-07 10:12:08,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 10:12:08,262 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 166 [2021-11-07 10:12:08,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:12:08,269 INFO L225 Difference]: With dead ends: 6973 [2021-11-07 10:12:08,269 INFO L226 Difference]: Without dead ends: 4708 [2021-11-07 10:12:08,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2582.49ms TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2021-11-07 10:12:08,274 INFO L933 BasicCegarLoop]: 4529 mSDtfsCounter, 8236 mSDsluCounter, 23519 mSDsCounter, 0 mSdLazyCounter, 3492 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11868.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8236 SdHoareTripleChecker+Valid, 28048 SdHoareTripleChecker+Invalid, 3572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 71.41ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12872.39ms IncrementalHoareTripleChecker+Time [2021-11-07 10:12:08,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8236 Valid, 28048 Invalid, 3572 Unknown, 0 Unchecked, 71.41ms Time], IncrementalHoareTripleChecker [80 Valid, 3492 Invalid, 0 Unknown, 0 Unchecked, 12872.39ms Time] [2021-11-07 10:12:08,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4708 states. [2021-11-07 10:12:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4708 to 2387. [2021-11-07 10:12:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2333 states have (on average 1.2794684954993572) internal successors, (2985), 2386 states have internal predecessors, (2985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:08,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 2985 transitions. [2021-11-07 10:12:08,424 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 2985 transitions. Word has length 166 [2021-11-07 10:12:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:12:08,424 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 2985 transitions. [2021-11-07 10:12:08,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 2985 transitions. [2021-11-07 10:12:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-07 10:12:08,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:12:08,426 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:12:08,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 10:12:08,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:12:08,628 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:12:08,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:12:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash -540589057, now seen corresponding path program 1 times [2021-11-07 10:12:08,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:12:08,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971055912] [2021-11-07 10:12:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:08,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:12:08,715 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:12:08,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124851406] [2021-11-07 10:12:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:08,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:12:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:12:08,721 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) [2021-11-07 10:12:08,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 10:12:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:12:09,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 3424 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-07 10:12:09,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:12:11,495 INFO L388 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 29 treesize of output 21 [2021-11-07 10:12:11,505 INFO L388 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 18 treesize of output 10 [2021-11-07 10:12:12,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:12:12,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:12:12,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:12:12,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971055912] [2021-11-07 10:12:12,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:12:12,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124851406] [2021-11-07 10:12:12,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124851406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:12:12,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:12:12,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 10:12:12,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759750667] [2021-11-07 10:12:12,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:12:12,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 10:12:12,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:12:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 10:12:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:12:12,050 INFO L87 Difference]: Start difference. First operand 2387 states and 2985 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 10 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:12:40,008 INFO L93 Difference]: Finished difference Result 6897 states and 8612 transitions. [2021-11-07 10:12:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 10:12:40,009 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 10 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2021-11-07 10:12:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:12:40,016 INFO L225 Difference]: With dead ends: 6897 [2021-11-07 10:12:40,017 INFO L226 Difference]: Without dead ends: 4614 [2021-11-07 10:12:40,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2800.73ms TimeCoverageRelationStatistics Valid=196, Invalid=506, Unknown=0, NotChecked=0, Total=702 [2021-11-07 10:12:40,021 INFO L933 BasicCegarLoop]: 4372 mSDtfsCounter, 6046 mSDsluCounter, 24923 mSDsCounter, 0 mSdLazyCounter, 6062 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22580.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6046 SdHoareTripleChecker+Valid, 29295 SdHoareTripleChecker+Invalid, 6268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 107.59ms SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 6062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24966.92ms IncrementalHoareTripleChecker+Time [2021-11-07 10:12:40,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6046 Valid, 29295 Invalid, 6268 Unknown, 0 Unchecked, 107.59ms Time], IncrementalHoareTripleChecker [206 Valid, 6062 Invalid, 0 Unknown, 0 Unchecked, 24966.92ms Time] [2021-11-07 10:12:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4614 states. [2021-11-07 10:12:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4614 to 4307. [2021-11-07 10:12:40,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4307 states, 4253 states have (on average 1.2823889019515635) internal successors, (5454), 4306 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 5454 transitions. [2021-11-07 10:12:40,254 INFO L78 Accepts]: Start accepts. Automaton has 4307 states and 5454 transitions. Word has length 168 [2021-11-07 10:12:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:12:40,254 INFO L470 AbstractCegarLoop]: Abstraction has 4307 states and 5454 transitions. [2021-11-07 10:12:40,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 10 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 4307 states and 5454 transitions. [2021-11-07 10:12:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-07 10:12:40,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:12:40,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:12:40,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-07 10:12:40,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:12:40,472 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:12:40,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:12:40,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1164645824, now seen corresponding path program 1 times [2021-11-07 10:12:40,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:12:40,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439284318] [2021-11-07 10:12:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:40,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:12:40,563 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:12:40,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1435122742] [2021-11-07 10:12:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:40,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:12:40,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:12:40,580 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) [2021-11-07 10:12:40,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-07 10:12:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:12:42,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 109 conjunts are in the unsatisfiable core [2021-11-07 10:12:42,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:12:44,102 INFO L354 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2021-11-07 10:12:44,103 INFO L388 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 25 treesize of output 23 [2021-11-07 10:12:44,442 INFO L388 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 15 treesize of output 1 [2021-11-07 10:12:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:12:45,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:12:45,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:12:45,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439284318] [2021-11-07 10:12:45,773 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:12:45,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435122742] [2021-11-07 10:12:45,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435122742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:12:45,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:12:45,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 10:12:45,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611796210] [2021-11-07 10:12:45,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:12:45,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 10:12:45,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:12:45,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 10:12:45,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-11-07 10:12:45,775 INFO L87 Difference]: Start difference. First operand 4307 states and 5454 transitions. Second operand has 20 states, 20 states have (on average 8.45) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:12:47,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:49,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:10,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-07 10:15:14,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:15:14,765 INFO L93 Difference]: Finished difference Result 20533 states and 25616 transitions. [2021-11-07 10:15:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-07 10:15:14,766 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.45) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2021-11-07 10:15:14,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:15:14,794 INFO L225 Difference]: With dead ends: 20533 [2021-11-07 10:15:14,794 INFO L226 Difference]: Without dead ends: 16519 [2021-11-07 10:15:14,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4096 ImplicationChecksByTransitivity, 13328.41ms TimeCoverageRelationStatistics Valid=2118, Invalid=9012, Unknown=0, NotChecked=0, Total=11130 [2021-11-07 10:15:14,803 INFO L933 BasicCegarLoop]: 14742 mSDtfsCounter, 20744 mSDsluCounter, 121934 mSDsCounter, 0 mSdLazyCounter, 31945 mSolverCounterSat, 594 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118974.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20744 SdHoareTripleChecker+Valid, 136676 SdHoareTripleChecker+Invalid, 32542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 530.87ms SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 31945 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132874.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:15:14,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20744 Valid, 136676 Invalid, 32542 Unknown, 0 Unchecked, 530.87ms Time], IncrementalHoareTripleChecker [594 Valid, 31945 Invalid, 3 Unknown, 0 Unchecked, 132874.45ms Time] [2021-11-07 10:15:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16519 states. [2021-11-07 10:15:15,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16519 to 4308. [2021-11-07 10:15:15,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4308 states, 4254 states have (on average 1.282322519981194) internal successors, (5455), 4307 states have internal predecessors, (5455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:15:15,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 5455 transitions. [2021-11-07 10:15:15,032 INFO L78 Accepts]: Start accepts. Automaton has 4308 states and 5455 transitions. Word has length 169 [2021-11-07 10:15:15,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:15:15,033 INFO L470 AbstractCegarLoop]: Abstraction has 4308 states and 5455 transitions. [2021-11-07 10:15:15,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.45) internal successors, (169), 20 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:15:15,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4308 states and 5455 transitions. [2021-11-07 10:15:15,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 10:15:15,034 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:15:15,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:15:15,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-07 10:15:15,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:15:15,235 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:15:15,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:15:15,236 INFO L85 PathProgramCache]: Analyzing trace with hash 41422726, now seen corresponding path program 1 times [2021-11-07 10:15:15,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:15:15,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253225725] [2021-11-07 10:15:15,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:15:15,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:15:15,302 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:15:15,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282599490] [2021-11-07 10:15:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:15:15,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:15:15,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:15:15,304 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) [2021-11-07 10:15:15,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-07 10:15:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:15:16,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-07 10:15:16,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:15:17,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:15:17,626 INFO L388 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 49 treesize of output 37 [2021-11-07 10:15:17,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:15:17,655 INFO L388 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 34 treesize of output 22 [2021-11-07 10:15:18,243 INFO L388 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 45 treesize of output 33 [2021-11-07 10:15:18,252 INFO L388 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 30 treesize of output 18 [2021-11-07 10:15:18,366 INFO L388 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 7 treesize of output 3 [2021-11-07 10:15:18,377 INFO L388 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 7 treesize of output 3 [2021-11-07 10:15:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:15:18,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:15:18,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:15:18,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253225725] [2021-11-07 10:15:18,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:15:18,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282599490] [2021-11-07 10:15:18,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282599490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:15:18,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:15:18,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 10:15:18,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591151363] [2021-11-07 10:15:18,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:15:18,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 10:15:18,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:15:18,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 10:15:18,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:15:18,856 INFO L87 Difference]: Start difference. First operand 4308 states and 5455 transitions. Second operand has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:15:20,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:22,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:25,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:27,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:29,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:15:31,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:09,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:09,281 INFO L93 Difference]: Finished difference Result 10790 states and 13569 transitions. [2021-11-07 10:16:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 10:16:09,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-07 10:16:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:09,295 INFO L225 Difference]: With dead ends: 10790 [2021-11-07 10:16:09,296 INFO L226 Difference]: Without dead ends: 8547 [2021-11-07 10:16:09,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2072.86ms TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-11-07 10:16:09,303 INFO L933 BasicCegarLoop]: 4364 mSDtfsCounter, 5009 mSDsluCounter, 28414 mSDsCounter, 0 mSdLazyCounter, 8298 mSolverCounterSat, 254 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42858.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 32778 SdHoareTripleChecker+Invalid, 8558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 125.84ms SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 8298 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47840.02ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:09,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5009 Valid, 32778 Invalid, 8558 Unknown, 0 Unchecked, 125.84ms Time], IncrementalHoareTripleChecker [254 Valid, 8298 Invalid, 6 Unknown, 0 Unchecked, 47840.02ms Time] [2021-11-07 10:16:09,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-11-07 10:16:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 4335. [2021-11-07 10:16:09,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4281 states have (on average 1.2819434711516) internal successors, (5488), 4334 states have internal predecessors, (5488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 5488 transitions. [2021-11-07 10:16:09,600 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 5488 transitions. Word has length 171 [2021-11-07 10:16:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:09,601 INFO L470 AbstractCegarLoop]: Abstraction has 4335 states and 5488 transitions. [2021-11-07 10:16:09,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 5488 transitions. [2021-11-07 10:16:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 10:16:09,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:09,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:16:09,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-07 10:16:09,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:16:09,821 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:16:09,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:09,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1899159288, now seen corresponding path program 1 times [2021-11-07 10:16:09,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:09,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353535453] [2021-11-07 10:16:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:09,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:09,896 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:16:09,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594288151] [2021-11-07 10:16:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:09,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:16:09,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:16:09,898 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) [2021-11-07 10:16:09,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 10:16:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:10,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:16:10,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:16:11,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:11,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:16:11,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:11,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353535453] [2021-11-07 10:16:11,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:16:11,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594288151] [2021-11-07 10:16:11,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594288151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:11,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:11,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:16:11,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862171724] [2021-11-07 10:16:11,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:11,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:16:11,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:11,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:16:11,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:16:11,413 INFO L87 Difference]: Start difference. First operand 4335 states and 5488 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:13,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:15,624 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:16:35,985 INFO L93 Difference]: Finished difference Result 11138 states and 14031 transitions. [2021-11-07 10:16:35,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:16:35,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-07 10:16:35,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:16:35,998 INFO L225 Difference]: With dead ends: 11138 [2021-11-07 10:16:35,998 INFO L226 Difference]: Without dead ends: 6851 [2021-11-07 10:16:36,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 342.55ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:16:36,005 INFO L933 BasicCegarLoop]: 3540 mSDtfsCounter, 1646 mSDsluCounter, 7379 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 535 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20012.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 10919 SdHoareTripleChecker+Invalid, 4186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.41ms SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23728.41ms IncrementalHoareTripleChecker+Time [2021-11-07 10:16:36,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1646 Valid, 10919 Invalid, 4186 Unknown, 0 Unchecked, 49.41ms Time], IncrementalHoareTripleChecker [535 Valid, 3649 Invalid, 2 Unknown, 0 Unchecked, 23728.41ms Time] [2021-11-07 10:16:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6851 states. [2021-11-07 10:16:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6851 to 4477. [2021-11-07 10:16:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4477 states, 4423 states have (on average 1.2726656115758535) internal successors, (5629), 4476 states have internal predecessors, (5629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:36,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4477 states to 4477 states and 5629 transitions. [2021-11-07 10:16:36,313 INFO L78 Accepts]: Start accepts. Automaton has 4477 states and 5629 transitions. Word has length 171 [2021-11-07 10:16:36,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:16:36,313 INFO L470 AbstractCegarLoop]: Abstraction has 4477 states and 5629 transitions. [2021-11-07 10:16:36,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4477 states and 5629 transitions. [2021-11-07 10:16:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-07 10:16:36,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:16:36,317 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:16:36,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2021-11-07 10:16:36,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-07 10:16:36,522 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:16:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:16:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1401114310, now seen corresponding path program 1 times [2021-11-07 10:16:36,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:16:36,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980772226] [2021-11-07 10:16:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:36,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:16:36,585 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:16:36,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823660834] [2021-11-07 10:16:36,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:16:36,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:16:36,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:16:36,587 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) [2021-11-07 10:16:36,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 10:16:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:16:38,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 187 conjunts are in the unsatisfiable core [2021-11-07 10:16:38,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:16:41,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:16:41,141 INFO L388 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 49 treesize of output 37 [2021-11-07 10:16:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:16:41,155 INFO L388 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 34 treesize of output 22 [2021-11-07 10:16:42,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:16:42,060 INFO L388 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 49 treesize of output 37 [2021-11-07 10:16:42,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:16:42,085 INFO L388 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 34 treesize of output 22 [2021-11-07 10:16:42,420 INFO L388 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 9 treesize of output 3 [2021-11-07 10:16:42,449 INFO L388 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 9 treesize of output 3 [2021-11-07 10:16:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:16:43,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:16:43,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:16:43,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980772226] [2021-11-07 10:16:43,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:16:43,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823660834] [2021-11-07 10:16:43,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823660834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:16:43,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:16:43,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-07 10:16:43,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005955465] [2021-11-07 10:16:43,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:16:43,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 10:16:43,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:16:43,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 10:16:43,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-11-07 10:16:43,329 INFO L87 Difference]: Start difference. First operand 4477 states and 5629 transitions. Second operand has 19 states, 19 states have (on average 9.0) internal successors, (171), 19 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:16:45,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:47,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:49,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:51,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:16:54,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:18:05,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-07 10:18:11,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:18:11,831 INFO L93 Difference]: Finished difference Result 16892 states and 21002 transitions. [2021-11-07 10:18:11,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-07 10:18:11,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 9.0) internal successors, (171), 19 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-07 10:18:11,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:18:11,861 INFO L225 Difference]: With dead ends: 16892 [2021-11-07 10:18:11,861 INFO L226 Difference]: Without dead ends: 12676 [2021-11-07 10:18:11,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 10398.08ms TimeCoverageRelationStatistics Valid=769, Invalid=3013, Unknown=0, NotChecked=0, Total=3782 [2021-11-07 10:18:11,897 INFO L933 BasicCegarLoop]: 4136 mSDtfsCounter, 15919 mSDsluCounter, 51750 mSDsCounter, 0 mSdLazyCounter, 13987 mSolverCounterSat, 1131 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67929.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15919 SdHoareTripleChecker+Valid, 55886 SdHoareTripleChecker+Invalid, 15124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 254.00ms SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 13987 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77659.58ms IncrementalHoareTripleChecker+Time [2021-11-07 10:18:11,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15919 Valid, 55886 Invalid, 15124 Unknown, 0 Unchecked, 254.00ms Time], IncrementalHoareTripleChecker [1131 Valid, 13987 Invalid, 6 Unknown, 0 Unchecked, 77659.58ms Time] [2021-11-07 10:18:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12676 states. [2021-11-07 10:18:12,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12676 to 5863. [2021-11-07 10:18:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5809 states have (on average 1.2690652435875365) internal successors, (7372), 5862 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:12,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 7372 transitions. [2021-11-07 10:18:12,227 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 7372 transitions. Word has length 171 [2021-11-07 10:18:12,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:18:12,228 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 7372 transitions. [2021-11-07 10:18:12,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.0) internal successors, (171), 19 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:12,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 7372 transitions. [2021-11-07 10:18:12,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-07 10:18:12,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:18:12,240 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:18:12,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-07 10:18:12,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 10:18:12,468 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:18:12,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:18:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1785476081, now seen corresponding path program 1 times [2021-11-07 10:18:12,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:18:12,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725258683] [2021-11-07 10:18:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:12,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:18:12,530 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:18:12,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [298570403] [2021-11-07 10:18:12,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:12,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:18:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:18:12,532 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) [2021-11-07 10:18:12,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-07 10:18:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:18:13,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 10:18:13,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:18:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:18:14,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:18:14,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:18:14,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725258683] [2021-11-07 10:18:14,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:18:14,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298570403] [2021-11-07 10:18:14,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298570403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:18:14,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:18:14,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:18:14,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799376975] [2021-11-07 10:18:14,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:18:14,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:18:14,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:18:14,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:18:14,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:18:14,098 INFO L87 Difference]: Start difference. First operand 5863 states and 7372 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:15,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:18:15,668 INFO L93 Difference]: Finished difference Result 17294 states and 21763 transitions. [2021-11-07 10:18:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:18:15,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-07 10:18:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:18:15,687 INFO L225 Difference]: With dead ends: 17294 [2021-11-07 10:18:15,687 INFO L226 Difference]: Without dead ends: 11555 [2021-11-07 10:18:15,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:18:15,696 INFO L933 BasicCegarLoop]: 2596 mSDtfsCounter, 2435 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 679.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 5122 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.39ms SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 891.08ms IncrementalHoareTripleChecker+Time [2021-11-07 10:18:15,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2435 Valid, 5122 Invalid, 181 Unknown, 0 Unchecked, 7.39ms Time], IncrementalHoareTripleChecker [66 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 891.08ms Time] [2021-11-07 10:18:15,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11555 states. [2021-11-07 10:18:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11555 to 5916. [2021-11-07 10:18:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5862 states have (on average 1.266632548618219) internal successors, (7425), 5915 states have internal predecessors, (7425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 7425 transitions. [2021-11-07 10:18:16,067 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 7425 transitions. Word has length 172 [2021-11-07 10:18:16,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:18:16,068 INFO L470 AbstractCegarLoop]: Abstraction has 5916 states and 7425 transitions. [2021-11-07 10:18:16,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 7425 transitions. [2021-11-07 10:18:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-07 10:18:16,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:18:16,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:18:16,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-07 10:18:16,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:18:16,292 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:18:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:18:16,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1221855463, now seen corresponding path program 1 times [2021-11-07 10:18:16,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:18:16,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139772101] [2021-11-07 10:18:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:16,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:18:16,386 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:18:16,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885729284] [2021-11-07 10:18:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:16,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:18:16,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:18:16,389 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) [2021-11-07 10:18:16,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-07 10:18:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:18:17,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 3479 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 10:18:17,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:18:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:18:18,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:18:18,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:18:18,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139772101] [2021-11-07 10:18:18,088 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:18:18,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885729284] [2021-11-07 10:18:18,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885729284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:18:18,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:18:18,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:18:18,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739768081] [2021-11-07 10:18:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:18:18,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:18:18,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:18:18,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:18:18,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:18:18,089 INFO L87 Difference]: Start difference. First operand 5916 states and 7425 transitions. Second operand has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:23,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:18:23,887 INFO L93 Difference]: Finished difference Result 20356 states and 25485 transitions. [2021-11-07 10:18:23,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 10:18:23,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-07 10:18:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:18:23,910 INFO L225 Difference]: With dead ends: 20356 [2021-11-07 10:18:23,910 INFO L226 Difference]: Without dead ends: 14487 [2021-11-07 10:18:23,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 508.77ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:18:23,919 INFO L933 BasicCegarLoop]: 5002 mSDtfsCounter, 6030 mSDsluCounter, 21397 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3740.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6030 SdHoareTripleChecker+Valid, 26399 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.41ms SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4196.57ms IncrementalHoareTripleChecker+Time [2021-11-07 10:18:23,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6030 Valid, 26399 Invalid, 1061 Unknown, 0 Unchecked, 36.41ms Time], IncrementalHoareTripleChecker [118 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 4196.57ms Time] [2021-11-07 10:18:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14487 states. [2021-11-07 10:18:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14487 to 5299. [2021-11-07 10:18:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5245 states have (on average 1.2625357483317445) internal successors, (6622), 5298 states have internal predecessors, (6622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 6622 transitions. [2021-11-07 10:18:24,296 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 6622 transitions. Word has length 172 [2021-11-07 10:18:24,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:18:24,296 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 6622 transitions. [2021-11-07 10:18:24,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.571428571428573) internal successors, (172), 7 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:18:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 6622 transitions. [2021-11-07 10:18:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-07 10:18:24,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:18:24,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:18:24,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-07 10:18:24,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:18:24,528 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:18:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:18:24,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1834159147, now seen corresponding path program 1 times [2021-11-07 10:18:24,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:18:24,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577214139] [2021-11-07 10:18:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:24,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:18:24,608 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:18:24,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040002688] [2021-11-07 10:18:24,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:18:24,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:18:24,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:18:24,609 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) [2021-11-07 10:18:24,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-07 10:18:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:18:26,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-07 10:18:26,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:18:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:18:28,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:18:28,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:18:28,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577214139] [2021-11-07 10:18:28,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:18:28,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040002688] [2021-11-07 10:18:28,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040002688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:18:28,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:18:28,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 10:18:28,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097220666] [2021-11-07 10:18:28,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:18:28,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 10:18:28,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:18:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 10:18:28,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-07 10:18:28,901 INFO L87 Difference]: Start difference. First operand 5299 states and 6622 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:19:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:19:01,473 INFO L93 Difference]: Finished difference Result 22080 states and 27552 transitions. [2021-11-07 10:19:01,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-07 10:19:01,474 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2021-11-07 10:19:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:19:01,505 INFO L225 Difference]: With dead ends: 22080 [2021-11-07 10:19:01,506 INFO L226 Difference]: Without dead ends: 17399 [2021-11-07 10:19:01,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 6321.39ms TimeCoverageRelationStatistics Valid=799, Invalid=3491, Unknown=0, NotChecked=0, Total=4290 [2021-11-07 10:19:01,514 INFO L933 BasicCegarLoop]: 5256 mSDtfsCounter, 19699 mSDsluCounter, 33794 mSDsCounter, 0 mSdLazyCounter, 5190 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21454.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19699 SdHoareTripleChecker+Valid, 39050 SdHoareTripleChecker+Invalid, 5631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 128.98ms SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 5190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25134.15ms IncrementalHoareTripleChecker+Time [2021-11-07 10:19:01,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19699 Valid, 39050 Invalid, 5631 Unknown, 0 Unchecked, 128.98ms Time], IncrementalHoareTripleChecker [441 Valid, 5190 Invalid, 0 Unknown, 0 Unchecked, 25134.15ms Time] [2021-11-07 10:19:01,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17399 states. [2021-11-07 10:19:01,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17399 to 5341. [2021-11-07 10:19:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5341 states, 5287 states have (on average 1.263287308492529) internal successors, (6679), 5340 states have internal predecessors, (6679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:19:01,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5341 states to 5341 states and 6679 transitions. [2021-11-07 10:19:01,927 INFO L78 Accepts]: Start accepts. Automaton has 5341 states and 6679 transitions. Word has length 172 [2021-11-07 10:19:01,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:19:01,928 INFO L470 AbstractCegarLoop]: Abstraction has 5341 states and 6679 transitions. [2021-11-07 10:19:01,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:19:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5341 states and 6679 transitions. [2021-11-07 10:19:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-07 10:19:01,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:19:01,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:19:01,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-07 10:19:02,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-07 10:19:02,151 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:19:02,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:19:02,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1223686865, now seen corresponding path program 1 times [2021-11-07 10:19:02,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:19:02,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201940526] [2021-11-07 10:19:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:19:02,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:19:02,221 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:19:02,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [891388446] [2021-11-07 10:19:02,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:19:02,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:19:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:19:02,222 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) [2021-11-07 10:19:02,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-07 10:19:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:19:03,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 3439 conjuncts, 129 conjunts are in the unsatisfiable core [2021-11-07 10:19:03,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:19:03,650 INFO L388 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 [2021-11-07 10:19:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:19:04,443 INFO L388 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 31 treesize of output 15 [2021-11-07 10:19:05,074 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-07 10:19:05,075 INFO L388 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 32 treesize of output 20 [2021-11-07 10:19:05,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:19:05,139 INFO L388 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 27 treesize of output 15 [2021-11-07 10:19:05,564 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 10:19:05,565 INFO L388 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 [2021-11-07 10:19:05,801 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-07 10:19:05,803 INFO L388 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 29 treesize of output 28 [2021-11-07 10:19:30,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:19:30,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201940526] [2021-11-07 10:19:30,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:19:30,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891388446] [2021-11-07 10:19:30,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.offset] [2021-11-07 10:19:30,064 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:19:30,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 10:19:30,064 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-07 10:19:30,064 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 10:19:30,072 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (53 of 54 remaining) [2021-11-07 10:19:30,074 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (52 of 54 remaining) [2021-11-07 10:19:30,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (51 of 54 remaining) [2021-11-07 10:19:30,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (50 of 54 remaining) [2021-11-07 10:19:30,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (49 of 54 remaining) [2021-11-07 10:19:30,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (48 of 54 remaining) [2021-11-07 10:19:30,075 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (47 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (46 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (45 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (44 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (43 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (42 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (41 of 54 remaining) [2021-11-07 10:19:30,076 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (40 of 54 remaining) [2021-11-07 10:19:30,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (39 of 54 remaining) [2021-11-07 10:19:30,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (38 of 54 remaining) [2021-11-07 10:19:30,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (37 of 54 remaining) [2021-11-07 10:19:30,077 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (36 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (35 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (34 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (33 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (32 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (31 of 54 remaining) [2021-11-07 10:19:30,078 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (30 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (29 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (28 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (27 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (26 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (25 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (24 of 54 remaining) [2021-11-07 10:19:30,079 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (23 of 54 remaining) [2021-11-07 10:19:30,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (22 of 54 remaining) [2021-11-07 10:19:30,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (21 of 54 remaining) [2021-11-07 10:19:30,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (20 of 54 remaining) [2021-11-07 10:19:30,080 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (19 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (18 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (17 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (16 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (15 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (14 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (13 of 54 remaining) [2021-11-07 10:19:30,081 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (12 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (11 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (10 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (9 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (8 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (7 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (6 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (5 of 54 remaining) [2021-11-07 10:19:30,082 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (4 of 54 remaining) [2021-11-07 10:19:30,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (3 of 54 remaining) [2021-11-07 10:19:30,084 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION (2 of 54 remaining) [2021-11-07 10:19:30,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION (1 of 54 remaining) [2021-11-07 10:19:30,085 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION (0 of 54 remaining) [2021-11-07 10:19:30,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-07 10:19:30,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 10:19:30,314 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:19:30,317 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 10:19:30,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:19:30 BoogieIcfgContainer [2021-11-07 10:19:30,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 10:19:30,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 10:19:30,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 10:19:30,361 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 10:19:30,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:10:08" (3/4) ... [2021-11-07 10:19:30,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 10:19:30,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 10:19:30,365 INFO L158 Benchmark]: Toolchain (without parser) took 583824.10ms. Allocated memory was 86.0MB in the beginning and 664.8MB in the end (delta: 578.8MB). Free memory was 42.4MB in the beginning and 390.4MB in the end (delta: -347.9MB). Peak memory consumption was 231.8MB. Max. memory is 16.1GB. [2021-11-07 10:19:30,365 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:19:30,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2328.42ms. Allocated memory was 86.0MB in the beginning and 165.7MB in the end (delta: 79.7MB). Free memory was 42.2MB in the beginning and 113.8MB in the end (delta: -71.5MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2021-11-07 10:19:30,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 370.93ms. Allocated memory is still 165.7MB. Free memory was 113.8MB in the beginning and 89.6MB in the end (delta: 24.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2021-11-07 10:19:30,366 INFO L158 Benchmark]: Boogie Preprocessor took 415.62ms. Allocated memory is still 165.7MB. Free memory was 89.6MB in the beginning and 73.0MB in the end (delta: 16.6MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2021-11-07 10:19:30,366 INFO L158 Benchmark]: RCFGBuilder took 19061.44ms. Allocated memory was 165.7MB in the beginning and 553.6MB in the end (delta: 388.0MB). Free memory was 73.0MB in the beginning and 239.1MB in the end (delta: -166.1MB). Peak memory consumption was 341.0MB. Max. memory is 16.1GB. [2021-11-07 10:19:30,366 INFO L158 Benchmark]: TraceAbstraction took 561635.74ms. Allocated memory was 553.6MB in the beginning and 664.8MB in the end (delta: 111.1MB). Free memory was 239.1MB in the beginning and 391.4MB in the end (delta: -152.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:19:30,366 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 664.8MB. Free memory was 391.4MB in the beginning and 390.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:19:30,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 86.0MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2328.42ms. Allocated memory was 86.0MB in the beginning and 165.7MB in the end (delta: 79.7MB). Free memory was 42.2MB in the beginning and 113.8MB in the end (delta: -71.5MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 370.93ms. Allocated memory is still 165.7MB. Free memory was 113.8MB in the beginning and 89.6MB in the end (delta: 24.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 415.62ms. Allocated memory is still 165.7MB. Free memory was 89.6MB in the beginning and 73.0MB in the end (delta: 16.6MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * RCFGBuilder took 19061.44ms. Allocated memory was 165.7MB in the beginning and 553.6MB in the end (delta: 388.0MB). Free memory was 73.0MB in the beginning and 239.1MB in the end (delta: -166.1MB). Peak memory consumption was 341.0MB. Max. memory is 16.1GB. * TraceAbstraction took 561635.74ms. Allocated memory was 553.6MB in the beginning and 664.8MB in the end (delta: 111.1MB). Free memory was 239.1MB in the beginning and 391.4MB in the end (delta: -152.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 664.8MB. Free memory was 391.4MB in the beginning and 390.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7793. Possible FailurePath: [L6915-L6920] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7360] static __thread int tl_last_error = 0; [L7792-L7940] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7943-L7946] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7948-L7957] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7959-L7962] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7964-L7968] static _Bool s_common_library_initialized = 0 ; [L8456] struct aws_priority_queue queue; [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6789-L6791] _Bool container_is_bounded = aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size); [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6797-L6799] _Bool backpointers_list_is_bounded = aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)); [L6800] return container_is_bounded && backpointers_list_is_bounded; [L211] COND FALSE !(!cond) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] list->data [L211] COND FALSE !(!cond) [L6939] return &s_can_fail_allocator_static; [L6747] list->alloc = can_fail_allocator() [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] list->data [L211] COND FALSE !(!cond) [L6939] return &s_can_fail_allocator_static; [L6747] list->alloc = can_fail_allocator() [L6806] queue->pred = nondet_compare [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8464] size_t root; [L8465] queue.container.length [L211] COND FALSE !(!cond) [L8467] queue.backpointers.data [L8467] COND TRUE queue.backpointers.data [L8474] size_t i; [L8475] i = 0 [L8475] EXPR queue.container.length [L8475] COND FALSE !(i < queue.container.length) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8122] queue->container.length [L211] COND FALSE !(!cond) [L8124] !index || !s_sift_up(queue, index) [L8124] COND TRUE !index || !s_sift_up(queue, index) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8020] queue->container.length [L211] COND FALSE !(!cond) [L8023-L8026] _Bool did_move = 0 ; [L3169] EXPR list->length [L3169] !list->length || list->data [L211] COND FALSE !(!cond) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L3171] EXPR list->length [L3171] size_t len = list->length; [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 233]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2061 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 561525.73ms, OverallIterations: 28, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 86.86ms, AutomataDifference: 463941.49ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 34.81ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 243897 SdHoareTripleChecker+Valid, 410257.65ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243897 mSDsluCounter, 513713 SdHoareTripleChecker+Invalid, 364298.28ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 411593 mSDsCounter, 4464 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86077 IncrementalHoareTripleChecker+Invalid, 90561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4464 mSolverCounterUnsat, 102120 mSDtfsCounter, 86077 mSolverCounterSat, 1741.59ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3830 GetRequests, 3368 SyntacticMatches, 0 SemanticMatches, 462 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6918 ImplicationChecksByTransitivity, 43281.24ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5916occurred in iteration=25, InterpolantAutomatonStates: 423, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 4244.29ms AutomataMinimizationTime, 27 MinimizatonAttempts, 79957 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3547.46ms SsaConstructionTime, 19717.29ms SatisfiabilityAnalysisTime, 60266.43ms InterpolantComputationTime, 3829 NumberOfCodeBlocks, 3829 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3628 ConstructedInterpolants, 0 QuantifiedInterpolants, 10768 SizeOfPredicates, 346 NumberOfNonLiveVariables, 81479 ConjunctsInSsa, 895 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 10:19:30,603 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-07 10:19:30,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:19:32,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:19:32,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:19:32,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:19:32,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:19:32,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:19:32,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:19:32,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:19:32,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:19:32,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:19:32,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:19:32,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:19:32,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:19:32,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:19:32,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:19:32,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:19:32,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:19:32,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:19:32,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:19:32,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:19:32,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:19:32,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:19:32,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:19:32,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:19:32,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:19:32,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:19:32,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:19:32,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:19:32,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:19:32,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:19:32,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:19:32,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:19:32,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:19:32,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:19:32,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:19:32,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:19:32,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:19:32,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:19:32,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:19:32,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:19:32,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:19:32,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-07 10:19:32,746 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:19:32,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:19:32,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:19:32,747 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:19:32,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:19:32,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:19:32,749 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:19:32,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:19:32,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:19:32,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:19:32,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:19:32,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:19:32,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 10:19:32,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 10:19:32,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:19:32,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:19:32,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:19:32,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:19:32,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:19:32,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:19:32,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:19:32,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:19:32,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:19:32,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:19:32,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:19:32,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 10:19:32,755 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2021-11-07 10:19:33,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:19:33,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:19:33,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:19:33,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:19:33,083 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:19:33,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:19:33,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3d46b4a/13f19565e49d45ffb41640786ff71467/FLAG154ffcaad [2021-11-07 10:19:33,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:19:33,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:19:33,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3d46b4a/13f19565e49d45ffb41640786ff71467/FLAG154ffcaad [2021-11-07 10:19:33,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a3d46b4a/13f19565e49d45ffb41640786ff71467 [2021-11-07 10:19:33,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:19:33,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:19:33,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:19:33,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:19:33,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:19:33,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:19:33" (1/1) ... [2021-11-07 10:19:33,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21fd3197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:33, skipping insertion in model container [2021-11-07 10:19:33,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:19:33" (1/1) ... [2021-11-07 10:19:33,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:19:34,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:19:34,357 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-07 10:19:34,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-07 10:19:34,383 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:19:34,389 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:19:35,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,004 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,011 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,012 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,013 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,014 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,015 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,016 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,216 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:19:35,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:19:35,217 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:19:35,218 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:19:35,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:19:35,219 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:19:35,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:19:35,220 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:19:35,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:19:35,221 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:19:35,313 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:19:35,329 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,330 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,334 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,427 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,428 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,429 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,442 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,442 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,442 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,443 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,444 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,448 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,454 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,459 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,460 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:19:35,511 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:19:35,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2021-11-07 10:19:35,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2021-11-07 10:19:35,534 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:19:35,536 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:19:35,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,581 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,582 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,590 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,591 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:19:35,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:19:35,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:19:35,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:19:35,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:19:35,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:19:35,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:19:35,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:19:35,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:19:35,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:19:35,666 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:19:35,680 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,682 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,685 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,714 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,716 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,717 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,718 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,719 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,720 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,721 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,722 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,724 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,725 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,730 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,731 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:19:35,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:19:36,076 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:19:36,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36 WrapperNode [2021-11-07 10:19:36,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:19:36,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:19:36,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:19:36,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:19:36,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:19:36,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:19:36,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:19:36,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:19:36,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:19:36,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:19:36,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:19:36,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:19:36,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (1/1) ... [2021-11-07 10:19:36,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:19:36,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:19:36,995 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) [2021-11-07 10:19:37,016 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 [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:19:37,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 10:19:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 10:19:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:20:09,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:20:09,667 INFO L299 CfgBuilder]: Removed 1637 assume(true) statements. [2021-11-07 10:20:09,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:20:09 BoogieIcfgContainer [2021-11-07 10:20:09,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:20:09,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:20:09,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:20:09,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:20:09,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:19:33" (1/3) ... [2021-11-07 10:20:09,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da5c9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:20:09, skipping insertion in model container [2021-11-07 10:20:09,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:19:36" (2/3) ... [2021-11-07 10:20:09,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da5c9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:20:09, skipping insertion in model container [2021-11-07 10:20:09,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:20:09" (3/3) ... [2021-11-07 10:20:09,677 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2021-11-07 10:20:09,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:20:09,681 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-11-07 10:20:09,722 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:20:09,727 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:20:09,727 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-11-07 10:20:09,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 10:20:09,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:09,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:09,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:09,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:09,786 INFO L85 PathProgramCache]: Analyzing trace with hash -771143003, now seen corresponding path program 1 times [2021-11-07 10:20:09,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:09,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963266342] [2021-11-07 10:20:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:09,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:09,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:09,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:09,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 10:20:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:12,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 10:20:12,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:12,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:12,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:12,433 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:12,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963266342] [2021-11-07 10:20:12,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963266342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:12,434 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:12,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 10:20:12,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939962894] [2021-11-07 10:20:12,436 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:12,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:20:12,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:12,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:20:12,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:20:12,470 INFO L87 Difference]: Start difference. First operand has 2061 states, 2006 states have (on average 1.4272183449651046) internal successors, (2863), 2060 states have internal predecessors, (2863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:12,572 INFO L93 Difference]: Finished difference Result 4116 states and 5719 transitions. [2021-11-07 10:20:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:20:12,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 10:20:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:12,594 INFO L225 Difference]: With dead ends: 4116 [2021-11-07 10:20:12,594 INFO L226 Difference]: Without dead ends: 2056 [2021-11-07 10:20:12,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.46ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:20:12,609 INFO L933 BasicCegarLoop]: 2660 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:12,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 6.12ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:20:12,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2021-11-07 10:20:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2021-11-07 10:20:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.326173826173826) internal successors, (2655), 2055 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2655 transitions. [2021-11-07 10:20:12,707 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2655 transitions. Word has length 41 [2021-11-07 10:20:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:12,707 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2655 transitions. [2021-11-07 10:20:12,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2655 transitions. [2021-11-07 10:20:12,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 10:20:12,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:12,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:12,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 10:20:12,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:12,936 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:12,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:12,936 INFO L85 PathProgramCache]: Analyzing trace with hash 890029669, now seen corresponding path program 1 times [2021-11-07 10:20:12,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:12,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131590210] [2021-11-07 10:20:12,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:12,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:12,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:12,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:12,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 10:20:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:15,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 10:20:15,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:16,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:16,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:16,340 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:16,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131590210] [2021-11-07 10:20:16,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131590210] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:16,340 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:16,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 10:20:16,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230982836] [2021-11-07 10:20:16,340 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:16,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:20:16,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:16,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:20:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:20:16,342 INFO L87 Difference]: Start difference. First operand 2056 states and 2655 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:16,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:16,785 INFO L93 Difference]: Finished difference Result 4034 states and 5208 transitions. [2021-11-07 10:20:16,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:20:16,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 10:20:16,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:16,794 INFO L225 Difference]: With dead ends: 4034 [2021-11-07 10:20:16,795 INFO L226 Difference]: Without dead ends: 2058 [2021-11-07 10:20:16,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.64ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:20:16,805 INFO L933 BasicCegarLoop]: 2637 mSDtfsCounter, 2882 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 253.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2882 SdHoareTripleChecker+Valid, 5004 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.57ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.71ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:16,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2882 Valid, 5004 Invalid, 57 Unknown, 0 Unchecked, 14.57ms Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 312.71ms Time] [2021-11-07 10:20:16,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2021-11-07 10:20:16,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2056. [2021-11-07 10:20:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3246753246753247) internal successors, (2652), 2055 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2652 transitions. [2021-11-07 10:20:16,876 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2652 transitions. Word has length 41 [2021-11-07 10:20:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:16,877 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2652 transitions. [2021-11-07 10:20:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2652 transitions. [2021-11-07 10:20:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 10:20:16,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:16,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:16,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 10:20:17,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:17,108 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1055647481, now seen corresponding path program 1 times [2021-11-07 10:20:17,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:17,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22928796] [2021-11-07 10:20:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:17,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:17,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:17,124 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:17,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 10:20:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:19,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 10:20:19,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:19,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:20,234 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:20,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22928796] [2021-11-07 10:20:20,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22928796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:20,234 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:20,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 10:20:20,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434922624] [2021-11-07 10:20:20,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:20,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:20:20,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:20:20,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:20:20,235 INFO L87 Difference]: Start difference. First operand 2056 states and 2652 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:26,103 INFO L93 Difference]: Finished difference Result 4157 states and 5359 transitions. [2021-11-07 10:20:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:20:26,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 10:20:26,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:26,110 INFO L225 Difference]: With dead ends: 4157 [2021-11-07 10:20:26,111 INFO L226 Difference]: Without dead ends: 2149 [2021-11-07 10:20:26,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 151.49ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:20:26,116 INFO L933 BasicCegarLoop]: 2616 mSDtfsCounter, 3201 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4683.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 6971 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.98ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5557.33ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:26,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 6971 Invalid, 688 Unknown, 0 Unchecked, 29.98ms Time], IncrementalHoareTripleChecker [17 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 5557.33ms Time] [2021-11-07 10:20:26,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2021-11-07 10:20:26,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 2056. [2021-11-07 10:20:26,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3231768231768233) internal successors, (2649), 2055 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:26,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2649 transitions. [2021-11-07 10:20:26,164 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2649 transitions. Word has length 49 [2021-11-07 10:20:26,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:26,164 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2649 transitions. [2021-11-07 10:20:26,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2649 transitions. [2021-11-07 10:20:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 10:20:26,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:26,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:26,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 10:20:26,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:26,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:26,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:26,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1757033039, now seen corresponding path program 1 times [2021-11-07 10:20:26,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:26,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951715532] [2021-11-07 10:20:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:26,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:26,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:26,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 10:20:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:28,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1526 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 10:20:28,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:29,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:29,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:29,775 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:29,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951715532] [2021-11-07 10:20:29,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951715532] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:29,775 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:29,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 10:20:29,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608705004] [2021-11-07 10:20:29,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:29,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:20:29,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:29,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:20:29,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:20:29,776 INFO L87 Difference]: Start difference. First operand 2056 states and 2649 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:30,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:30,812 INFO L93 Difference]: Finished difference Result 5594 states and 7165 transitions. [2021-11-07 10:20:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:20:30,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 10:20:30,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:30,824 INFO L225 Difference]: With dead ends: 5594 [2021-11-07 10:20:30,824 INFO L226 Difference]: Without dead ends: 3617 [2021-11-07 10:20:30,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 143.17ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:20:30,829 INFO L933 BasicCegarLoop]: 2610 mSDtfsCounter, 7023 mSDsluCounter, 4701 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 723.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7023 SdHoareTripleChecker+Valid, 7311 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.06ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 842.16ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:30,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7023 Valid, 7311 Invalid, 173 Unknown, 0 Unchecked, 13.06ms Time], IncrementalHoareTripleChecker [14 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 842.16ms Time] [2021-11-07 10:20:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3617 states. [2021-11-07 10:20:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3617 to 2056. [2021-11-07 10:20:30,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3216783216783217) internal successors, (2646), 2055 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2646 transitions. [2021-11-07 10:20:30,880 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2646 transitions. Word has length 65 [2021-11-07 10:20:30,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:30,882 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2646 transitions. [2021-11-07 10:20:30,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:30,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2646 transitions. [2021-11-07 10:20:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 10:20:30,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:30,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:30,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 10:20:31,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:31,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:31,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:31,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1874634859, now seen corresponding path program 1 times [2021-11-07 10:20:31,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:31,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363888970] [2021-11-07 10:20:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:31,111 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:31,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:31,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:31,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 10:20:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:33,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:20:33,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:34,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:34,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:34,896 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:34,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363888970] [2021-11-07 10:20:34,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363888970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:34,897 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:34,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 10:20:34,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090199838] [2021-11-07 10:20:34,897 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:34,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 10:20:34,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:34,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 10:20:34,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:20:34,898 INFO L87 Difference]: Start difference. First operand 2056 states and 2646 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:41,396 INFO L93 Difference]: Finished difference Result 8485 states and 10771 transitions. [2021-11-07 10:20:41,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:20:41,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-07 10:20:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:41,420 INFO L225 Difference]: With dead ends: 8485 [2021-11-07 10:20:41,421 INFO L226 Difference]: Without dead ends: 6492 [2021-11-07 10:20:41,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 564.48ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-07 10:20:41,428 INFO L933 BasicCegarLoop]: 2571 mSDtfsCounter, 24981 mSDsluCounter, 10712 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4996.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24981 SdHoareTripleChecker+Valid, 13283 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.10ms SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5860.65ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:41,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24981 Valid, 13283 Invalid, 918 Unknown, 0 Unchecked, 35.10ms Time], IncrementalHoareTripleChecker [104 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 5860.65ms Time] [2021-11-07 10:20:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6492 states. [2021-11-07 10:20:41,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6492 to 2056. [2021-11-07 10:20:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 2002 states have (on average 1.3201798201798203) internal successors, (2643), 2055 states have internal predecessors, (2643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2643 transitions. [2021-11-07 10:20:41,510 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2643 transitions. Word has length 89 [2021-11-07 10:20:41,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:41,510 INFO L470 AbstractCegarLoop]: Abstraction has 2056 states and 2643 transitions. [2021-11-07 10:20:41,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:41,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2643 transitions. [2021-11-07 10:20:41,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 10:20:41,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:41,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:41,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 10:20:41,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:41,728 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:41,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1808280541, now seen corresponding path program 1 times [2021-11-07 10:20:41,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:41,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109241779] [2021-11-07 10:20:41,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:41,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:41,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:41,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:41,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 10:20:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:44,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 10:20:44,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:44,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:45,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:45,064 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:45,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109241779] [2021-11-07 10:20:45,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109241779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:45,064 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:45,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 10:20:45,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196276260] [2021-11-07 10:20:45,065 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:45,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:20:45,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:45,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:20:45,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:20:45,066 INFO L87 Difference]: Start difference. First operand 2056 states and 2643 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:46,547 INFO L93 Difference]: Finished difference Result 5825 states and 7465 transitions. [2021-11-07 10:20:46,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:20:46,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 10:20:46,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:46,559 INFO L225 Difference]: With dead ends: 5825 [2021-11-07 10:20:46,559 INFO L226 Difference]: Without dead ends: 3847 [2021-11-07 10:20:46,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.54ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:20:46,564 INFO L933 BasicCegarLoop]: 4813 mSDtfsCounter, 2340 mSDsluCounter, 11951 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1159.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 16764 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.17ms SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1308.74ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:46,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2340 Valid, 16764 Invalid, 333 Unknown, 0 Unchecked, 13.17ms Time], IncrementalHoareTripleChecker [56 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 1308.74ms Time] [2021-11-07 10:20:46,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3847 states. [2021-11-07 10:20:46,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3847 to 2128. [2021-11-07 10:20:46,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2074 states have (on average 1.3206364513018323) internal successors, (2739), 2127 states have internal predecessors, (2739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2739 transitions. [2021-11-07 10:20:46,630 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2739 transitions. Word has length 105 [2021-11-07 10:20:46,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:46,632 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2739 transitions. [2021-11-07 10:20:46,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2739 transitions. [2021-11-07 10:20:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 10:20:46,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:46,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:20:46,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 10:20:46,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:20:46,861 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:20:46,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash 525112097, now seen corresponding path program 1 times [2021-11-07 10:20:46,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:20:46,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120955621] [2021-11-07 10:20:46,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:46,865 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:20:46,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:20:46,867 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:20:46,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 10:20:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:49,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 10:20:49,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:50,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:50,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:20:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:20:51,052 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:20:51,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120955621] [2021-11-07 10:20:51,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2120955621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:51,052 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:51,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 10:20:51,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916339856] [2021-11-07 10:20:51,052 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:51,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:20:51,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:20:51,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:20:51,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-07 10:20:51,053 INFO L87 Difference]: Start difference. First operand 2128 states and 2739 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:20:53,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:20:55,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:21:50,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:21:50,515 INFO L93 Difference]: Finished difference Result 5815 states and 7444 transitions. [2021-11-07 10:21:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 10:21:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 10:21:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:21:50,532 INFO L225 Difference]: With dead ends: 5815 [2021-11-07 10:21:50,532 INFO L226 Difference]: Without dead ends: 3762 [2021-11-07 10:21:50,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 885.83ms TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:21:50,537 INFO L933 BasicCegarLoop]: 3789 mSDtfsCounter, 4076 mSDsluCounter, 12629 mSDsCounter, 0 mSdLazyCounter, 3789 mSolverCounterSat, 185 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52546.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4076 SdHoareTripleChecker+Valid, 16418 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 64.10ms SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 3789 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58544.08ms IncrementalHoareTripleChecker+Time [2021-11-07 10:21:50,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4076 Valid, 16418 Invalid, 3976 Unknown, 0 Unchecked, 64.10ms Time], IncrementalHoareTripleChecker [185 Valid, 3789 Invalid, 2 Unknown, 0 Unchecked, 58544.08ms Time] [2021-11-07 10:21:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2021-11-07 10:21:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 2128. [2021-11-07 10:21:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2074 states have (on average 1.314850530376085) internal successors, (2727), 2127 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:21:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2727 transitions. [2021-11-07 10:21:50,638 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2727 transitions. Word has length 105 [2021-11-07 10:21:50,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:21:50,639 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2727 transitions. [2021-11-07 10:21:50,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:21:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2727 transitions. [2021-11-07 10:21:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 10:21:50,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:21:50,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:21:50,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 10:21:50,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-07 10:21:50,854 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 51 more)] === [2021-11-07 10:21:50,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:21:50,854 INFO L85 PathProgramCache]: Analyzing trace with hash -603131867, now seen corresponding path program 1 times [2021-11-07 10:21:50,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 10:21:50,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055636987] [2021-11-07 10:21:50,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:21:50,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 10:21:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-07 10:21:50,864 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 10:21:50,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 10:21:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:21:53,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1698 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:21:53,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:21:54,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:21:54,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:21:55,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:21:55,085 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 10:21:55,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055636987] [2021-11-07 10:21:55,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055636987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 10:21:55,085 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:21:55,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-07 10:21:55,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577677454] [2021-11-07 10:21:55,085 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-07 10:21:55,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 10:21:55,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 10:21:55,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 10:21:55,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:21:55,086 INFO L87 Difference]: Start difference. First operand 2128 states and 2727 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 9 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:21:57,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:21:59,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:22:01,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:22:03,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15