./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_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_push_ref_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 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:07:06,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:07:06,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:07:06,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:07:06,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:07:06,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:07:06,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:07:06,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:07:06,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:07:06,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:07:06,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:07:06,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:07:06,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:07:06,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:07:06,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:07:06,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:07:06,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:07:06,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:07:06,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:07:06,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:07:06,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:07:06,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:07:06,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:07:06,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:07:06,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:07:06,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:07:06,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:07:06,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:07:06,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:07:06,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:07:06,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:07:06,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:07:06,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:07:06,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:07:06,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:07:06,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:07:06,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:07:06,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:07:06,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:07:06,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:07:06,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:07:06,405 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:07:06,439 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:07:06,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:07:06,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:07:06,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:07:06,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:07:06,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:07:06,444 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:07:06,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:07:06,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:07:06,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:07:06,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:07:06,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:07:06,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:07:06,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:07:06,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:07:06,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:07:06,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:07:06,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:07:06,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:07:06,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:07:06,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:07:06,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:07:06,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:07:06,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:07:06,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:07:06,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:07:06,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:07:06,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:07:06,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:07:06,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 [2021-11-07 10:07:06,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:07:06,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:07:06,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:07:06,727 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:07:06,728 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:07:06,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 10:07:06,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97d4b386/c4aaffebc3114f44b02baddd73473d40/FLAG4c7271bd4 [2021-11-07 10:07:07,479 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:07:07,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 10:07:07,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97d4b386/c4aaffebc3114f44b02baddd73473d40/FLAG4c7271bd4 [2021-11-07 10:07:07,587 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b97d4b386/c4aaffebc3114f44b02baddd73473d40 [2021-11-07 10:07:07,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:07:07,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:07:07,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:07:07,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:07:07,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:07:07,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:07:07" (1/1) ... [2021-11-07 10:07:07,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4afee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:07, skipping insertion in model container [2021-11-07 10:07:07,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:07:07" (1/1) ... [2021-11-07 10:07:07,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:07:07,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:07:08,000 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_push_ref_harness.i[4501,4514] [2021-11-07 10:07:08,010 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_push_ref_harness.i[4561,4574] [2021-11-07 10:07:08,032 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:07:08,037 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:07:08,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,656 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,657 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,676 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,678 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:08,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:07:08,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:07:08,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:07:08,918 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:07:08,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:07:08,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:07:08,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:07:08,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:07:08,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:07:08,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:07:09,075 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:07:09,098 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,103 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,188 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,189 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,190 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,191 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,193 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,196 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,208 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,223 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,224 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,225 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:07:09,281 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:07:09,305 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_push_ref_harness.i[4501,4514] [2021-11-07 10:07:09,306 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_push_ref_harness.i[4561,4574] [2021-11-07 10:07:09,310 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:07:09,312 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:07:09,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,368 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,369 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,380 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,381 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,383 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:07:09,425 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:07:09,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:07:09,426 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:07:09,427 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:07:09,428 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:07:09,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:07:09,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:07:09,429 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:07:09,430 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:07:09,454 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:07:09,468 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,472 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,500 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,501 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,502 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,503 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,504 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:07:09,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:07:09,777 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:07:09,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09 WrapperNode [2021-11-07 10:07:09,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:07:09,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:07:09,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:07:09,786 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:07:09,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:09,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:07:10,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:07:10,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:07:10,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:07:10,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,452 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:07:10,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:07:10,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:07:10,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:07:10,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (1/1) ... [2021-11-07 10:07:10,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:07:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:10,610 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 10:07:10,617 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 10:07:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:07:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:07:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 10:07:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 10:07:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:07:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:07:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-07 10:07:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:07:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 10:07:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 10:07:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 10:07:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:07:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:07:28,863 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:07:28,863 INFO L299 CfgBuilder]: Removed 1883 assume(true) statements. [2021-11-07 10:07:28,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:07:28 BoogieIcfgContainer [2021-11-07 10:07:28,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:07:28,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:07:28,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:07:28,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:07:28,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:07:07" (1/3) ... [2021-11-07 10:07:28,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cdb570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:07:28, skipping insertion in model container [2021-11-07 10:07:28,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:07:09" (2/3) ... [2021-11-07 10:07:28,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68cdb570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:07:28, skipping insertion in model container [2021-11-07 10:07:28,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:07:28" (3/3) ... [2021-11-07 10:07:28,878 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_ref_harness.i [2021-11-07 10:07:28,883 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:07:28,884 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2021-11-07 10:07:28,938 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:07:28,945 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 10:07:28,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2021-11-07 10:07:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 2319 states, 2255 states have (on average 1.4124168514412416) internal successors, (3185), 2318 states have internal predecessors, (3185), 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 10:07:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 10:07:29,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:29,004 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] [2021-11-07 10:07:29,005 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:29,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:29,009 INFO L85 PathProgramCache]: Analyzing trace with hash -966206977, now seen corresponding path program 1 times [2021-11-07 10:07:29,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:29,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32989103] [2021-11-07 10:07:29,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:29,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:29,727 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 10:07:29,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:29,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32989103] [2021-11-07 10:07:29,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32989103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:29,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:29,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:07:29,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844958338] [2021-11-07 10:07:29,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:29,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:07:29,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:07:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:07:29,780 INFO L87 Difference]: Start difference. First operand has 2319 states, 2255 states have (on average 1.4124168514412416) internal successors, (3185), 2318 states have internal predecessors, (3185), 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 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 10:07:29,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:29,895 INFO L93 Difference]: Finished difference Result 4632 states and 6363 transitions. [2021-11-07 10:07:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:07:29,904 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 64 [2021-11-07 10:07:29,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:29,942 INFO L225 Difference]: With dead ends: 4632 [2021-11-07 10:07:29,943 INFO L226 Difference]: Without dead ends: 2314 [2021-11-07 10:07:29,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:07:29,956 INFO L933 BasicCegarLoop]: 2988 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, 2988 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:29,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2988 Invalid, 0 Unknown, 0 Unchecked, 10.88ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:07:29,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2021-11-07 10:07:30,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2021-11-07 10:07:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3251888049755665) internal successors, (2983), 2313 states have internal predecessors, (2983), 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 10:07:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2983 transitions. [2021-11-07 10:07:30,110 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2983 transitions. Word has length 64 [2021-11-07 10:07:30,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:30,111 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2983 transitions. [2021-11-07 10:07:30,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 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 10:07:30,112 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2983 transitions. [2021-11-07 10:07:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-07 10:07:30,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:30,120 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] [2021-11-07 10:07:30,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:07:30,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1823598091, now seen corresponding path program 1 times [2021-11-07 10:07:30,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:30,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631690550] [2021-11-07 10:07:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:30,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:30,547 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 10:07:30,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:30,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631690550] [2021-11-07 10:07:30,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631690550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:30,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:30,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:07:30,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356920900] [2021-11-07 10:07:30,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:30,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:07:30,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:07:30,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:07:30,550 INFO L87 Difference]: Start difference. First operand 2314 states and 2983 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 10:07:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:30,888 INFO L93 Difference]: Finished difference Result 4548 states and 5861 transitions. [2021-11-07 10:07:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:07:30,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2021-11-07 10:07:30,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:30,898 INFO L225 Difference]: With dead ends: 4548 [2021-11-07 10:07:30,899 INFO L226 Difference]: Without dead ends: 2314 [2021-11-07 10:07:30,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:07:30,905 INFO L933 BasicCegarLoop]: 2968 mSDtfsCounter, 4657 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.15ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 192.70ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:30,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4657 Valid, 4220 Invalid, 46 Unknown, 0 Unchecked, 20.15ms Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 192.70ms Time] [2021-11-07 10:07:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2021-11-07 10:07:30,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2314. [2021-11-07 10:07:30,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3238560639715682) internal successors, (2980), 2313 states have internal predecessors, (2980), 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 10:07:30,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2980 transitions. [2021-11-07 10:07:30,981 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2980 transitions. Word has length 64 [2021-11-07 10:07:30,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:30,981 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2980 transitions. [2021-11-07 10:07:30,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 10:07:30,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2980 transitions. [2021-11-07 10:07:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 10:07:30,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:30,989 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] [2021-11-07 10:07:30,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:07:30,990 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:30,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:30,991 INFO L85 PathProgramCache]: Analyzing trace with hash 998964115, now seen corresponding path program 1 times [2021-11-07 10:07:30,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:30,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601242903] [2021-11-07 10:07:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:30,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:31,544 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 10:07:31,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:31,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601242903] [2021-11-07 10:07:31,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601242903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:31,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:31,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:07:31,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119617614] [2021-11-07 10:07:31,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:31,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:07:31,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:31,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:07:31,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:07:31,546 INFO L87 Difference]: Start difference. First operand 2314 states and 2980 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 10:07:35,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:35,109 INFO L93 Difference]: Finished difference Result 5247 states and 6724 transitions. [2021-11-07 10:07:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:07:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2021-11-07 10:07:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:35,122 INFO L225 Difference]: With dead ends: 5247 [2021-11-07 10:07:35,123 INFO L226 Difference]: Without dead ends: 2981 [2021-11-07 10:07:35,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 120.51ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:07:35,130 INFO L933 BasicCegarLoop]: 2947 mSDtfsCounter, 6285 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2896.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 6377 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.80ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3243.70ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:35,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6285 Valid, 6377 Invalid, 811 Unknown, 0 Unchecked, 36.80ms Time], IncrementalHoareTripleChecker [20 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 3243.70ms Time] [2021-11-07 10:07:35,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-11-07 10:07:35,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2314. [2021-11-07 10:07:35,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.32252332296757) internal successors, (2977), 2313 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 10:07:35,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2977 transitions. [2021-11-07 10:07:35,210 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2977 transitions. Word has length 72 [2021-11-07 10:07:35,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:35,210 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2977 transitions. [2021-11-07 10:07:35,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 10:07:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2977 transitions. [2021-11-07 10:07:35,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 10:07:35,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:35,213 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] [2021-11-07 10:07:35,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 10:07:35,214 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:35,215 INFO L85 PathProgramCache]: Analyzing trace with hash -984193973, now seen corresponding path program 1 times [2021-11-07 10:07:35,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:35,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822964078] [2021-11-07 10:07:35,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:35,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:35,341 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:35,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806268394] [2021-11-07 10:07:35,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:35,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:35,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:35,347 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 10:07:35,372 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 10:07:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:36,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 2740 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 10:07:36,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:37,020 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 10:07:37,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:37,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:37,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822964078] [2021-11-07 10:07:37,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:37,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806268394] [2021-11-07 10:07:37,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806268394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:37,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:37,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:07:37,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466173803] [2021-11-07 10:07:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:37,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:07:37,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:07:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:07:37,023 INFO L87 Difference]: Start difference. First operand 2314 states and 2977 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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 10:07:38,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:38,700 INFO L93 Difference]: Finished difference Result 5255 states and 6739 transitions. [2021-11-07 10:07:38,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:07:38,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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 88 [2021-11-07 10:07:38,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:38,714 INFO L225 Difference]: With dead ends: 5255 [2021-11-07 10:07:38,715 INFO L226 Difference]: Without dead ends: 3020 [2021-11-07 10:07:38,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 230.36ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 10:07:38,721 INFO L933 BasicCegarLoop]: 2829 mSDtfsCounter, 11991 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1222.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11991 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.39ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1365.96ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:38,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11991 Valid, 5183 Invalid, 344 Unknown, 0 Unchecked, 25.39ms Time], IncrementalHoareTripleChecker [17 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 1365.96ms Time] [2021-11-07 10:07:38,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2021-11-07 10:07:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2314. [2021-11-07 10:07:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 2251 states have (on average 1.3211905819635716) internal successors, (2974), 2313 states have internal predecessors, (2974), 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 10:07:38,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 2974 transitions. [2021-11-07 10:07:38,886 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 2974 transitions. Word has length 88 [2021-11-07 10:07:38,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:38,887 INFO L470 AbstractCegarLoop]: Abstraction has 2314 states and 2974 transitions. [2021-11-07 10:07:38,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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 10:07:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 2974 transitions. [2021-11-07 10:07:38,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 10:07:38,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:38,894 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] [2021-11-07 10:07:38,933 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 10:07:39,114 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 10:07:39,114 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:39,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:39,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1935115155, now seen corresponding path program 1 times [2021-11-07 10:07:39,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:39,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363516414] [2021-11-07 10:07:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:39,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:39,220 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:39,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993700502] [2021-11-07 10:07:39,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:39,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:39,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:39,223 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 10:07:39,226 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 10:07:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:40,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2842 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:07:40,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:40,561 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 10:07:40,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:40,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:40,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363516414] [2021-11-07 10:07:40,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:40,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993700502] [2021-11-07 10:07:40,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993700502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:40,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:40,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:07:40,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499455346] [2021-11-07 10:07:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:40,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:07:40,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:40,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:07:40,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:07:40,564 INFO L87 Difference]: Start difference. First operand 2314 states and 2974 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 10:07:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:41,263 INFO L93 Difference]: Finished difference Result 4597 states and 5908 transitions. [2021-11-07 10:07:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:07:41,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 112 [2021-11-07 10:07:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:41,273 INFO L225 Difference]: With dead ends: 4597 [2021-11-07 10:07:41,273 INFO L226 Difference]: Without dead ends: 2354 [2021-11-07 10:07:41,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:07:41,279 INFO L933 BasicCegarLoop]: 2965 mSDtfsCounter, 22 mSDsluCounter, 5838 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 517.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 8803 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.54ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 575.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:41,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 8803 Invalid, 191 Unknown, 0 Unchecked, 19.54ms Time], IncrementalHoareTripleChecker [37 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 575.45ms Time] [2021-11-07 10:07:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2021-11-07 10:07:41,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2334. [2021-11-07 10:07:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2271 states have (on average 1.3183619550858652) internal successors, (2994), 2333 states have internal predecessors, (2994), 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 10:07:41,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2994 transitions. [2021-11-07 10:07:41,353 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2994 transitions. Word has length 112 [2021-11-07 10:07:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:41,356 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 2994 transitions. [2021-11-07 10:07:41,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 10:07:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2994 transitions. [2021-11-07 10:07:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 10:07:41,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:41,359 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] [2021-11-07 10:07:41,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 10:07:41,587 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 10:07:41,588 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:41,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:41,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1660355541, now seen corresponding path program 1 times [2021-11-07 10:07:41,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:41,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360041510] [2021-11-07 10:07:41,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:41,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:41,688 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:41,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1357301172] [2021-11-07 10:07:41,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:41,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:41,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:41,691 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 10:07:41,692 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 10:07:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:42,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 2837 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:07:42,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:43,236 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 10:07:43,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:43,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:43,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360041510] [2021-11-07 10:07:43,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:43,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357301172] [2021-11-07 10:07:43,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357301172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:43,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:43,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:07:43,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348354574] [2021-11-07 10:07:43,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:43,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:07:43,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:43,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:07:43,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:07:43,239 INFO L87 Difference]: Start difference. First operand 2334 states and 2994 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 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 10:07:47,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:47,169 INFO L93 Difference]: Finished difference Result 5311 states and 6797 transitions. [2021-11-07 10:07:47,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 10:07:47,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 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 112 [2021-11-07 10:07:47,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:47,180 INFO L225 Difference]: With dead ends: 5311 [2021-11-07 10:07:47,180 INFO L226 Difference]: Without dead ends: 3040 [2021-11-07 10:07:47,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 297.08ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:07:47,186 INFO L933 BasicCegarLoop]: 2796 mSDtfsCounter, 12189 mSDsluCounter, 4392 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3149.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12189 SdHoareTripleChecker+Valid, 7188 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.04ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3508.51ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:47,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12189 Valid, 7188 Invalid, 1115 Unknown, 0 Unchecked, 31.04ms Time], IncrementalHoareTripleChecker [42 Valid, 1073 Invalid, 0 Unknown, 0 Unchecked, 3508.51ms Time] [2021-11-07 10:07:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2021-11-07 10:07:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 2334. [2021-11-07 10:07:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2271 states have (on average 1.3170409511228534) internal successors, (2991), 2333 states have internal predecessors, (2991), 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 10:07:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2991 transitions. [2021-11-07 10:07:47,271 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2991 transitions. Word has length 112 [2021-11-07 10:07:47,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:47,271 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 2991 transitions. [2021-11-07 10:07:47,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 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 10:07:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2991 transitions. [2021-11-07 10:07:47,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-07 10:07:47,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:47,273 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] [2021-11-07 10:07:47,307 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 10:07:47,486 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 10:07:47,486 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:47,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash 485350515, now seen corresponding path program 1 times [2021-11-07 10:07:47,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:47,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456525167] [2021-11-07 10:07:47,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:47,487 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:47,590 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:47,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1032592487] [2021-11-07 10:07:47,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:47,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:47,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:47,592 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 10:07:47,595 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 10:07:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:48,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:07:48,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:49,332 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 10:07:49,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:49,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:49,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456525167] [2021-11-07 10:07:49,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:49,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032592487] [2021-11-07 10:07:49,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032592487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:49,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:49,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:07:49,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475920081] [2021-11-07 10:07:49,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:49,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:07:49,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:49,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:07:49,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:07:49,336 INFO L87 Difference]: Start difference. First operand 2334 states and 2991 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 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 10:07:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:52,656 INFO L93 Difference]: Finished difference Result 4497 states and 5766 transitions. [2021-11-07 10:07:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:07:52,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 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 128 [2021-11-07 10:07:52,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:52,664 INFO L225 Difference]: With dead ends: 4497 [2021-11-07 10:07:52,664 INFO L226 Difference]: Without dead ends: 2334 [2021-11-07 10:07:52,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 146.19ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:07:52,670 INFO L933 BasicCegarLoop]: 2820 mSDtfsCounter, 8749 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2691.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8749 SdHoareTripleChecker+Valid, 5081 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.00ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3042.40ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:52,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8749 Valid, 5081 Invalid, 904 Unknown, 0 Unchecked, 29.00ms Time], IncrementalHoareTripleChecker [4 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 3042.40ms Time] [2021-11-07 10:07:52,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2334 states. [2021-11-07 10:07:52,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2334 to 2334. [2021-11-07 10:07:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2271 states have (on average 1.3157199471598415) internal successors, (2988), 2333 states have internal predecessors, (2988), 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 10:07:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2988 transitions. [2021-11-07 10:07:52,760 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2988 transitions. Word has length 128 [2021-11-07 10:07:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:52,761 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 2988 transitions. [2021-11-07 10:07:52,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 5 states have internal predecessors, (128), 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 10:07:52,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2988 transitions. [2021-11-07 10:07:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 10:07:52,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:52,763 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] [2021-11-07 10:07:52,803 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 10:07:52,983 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 10:07:52,984 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:52,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:52,984 INFO L85 PathProgramCache]: Analyzing trace with hash -451771305, now seen corresponding path program 1 times [2021-11-07 10:07:52,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:52,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591922175] [2021-11-07 10:07:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:52,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:53,109 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:53,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703861341] [2021-11-07 10:07:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:53,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:53,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:53,111 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 10:07:53,113 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 10:07:53,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:53,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 3122 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 10:07:53,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:54,878 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 10:07:54,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:54,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:54,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591922175] [2021-11-07 10:07:54,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:54,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703861341] [2021-11-07 10:07:54,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703861341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:54,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:54,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:07:54,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485532399] [2021-11-07 10:07:54,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:54,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:07:54,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:54,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:07:54,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:07:54,881 INFO L87 Difference]: Start difference. First operand 2334 states and 2988 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 10:07:57,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:07:57,920 INFO L93 Difference]: Finished difference Result 4831 states and 6197 transitions. [2021-11-07 10:07:57,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:07:57,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 136 [2021-11-07 10:07:57,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:07:57,928 INFO L225 Difference]: With dead ends: 4831 [2021-11-07 10:07:57,928 INFO L226 Difference]: Without dead ends: 2692 [2021-11-07 10:07:57,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 208.96ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-07 10:07:57,931 INFO L933 BasicCegarLoop]: 2851 mSDtfsCounter, 11739 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2400.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11739 SdHoareTripleChecker+Valid, 6937 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.24ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2717.74ms IncrementalHoareTripleChecker+Time [2021-11-07 10:07:57,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11739 Valid, 6937 Invalid, 917 Unknown, 0 Unchecked, 26.24ms Time], IncrementalHoareTripleChecker [79 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 2717.74ms Time] [2021-11-07 10:07:57,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2692 states. [2021-11-07 10:07:58,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2692 to 2334. [2021-11-07 10:07:58,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2334 states, 2271 states have (on average 1.3117569352708058) internal successors, (2979), 2333 states have internal predecessors, (2979), 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 10:07:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2334 states to 2334 states and 2979 transitions. [2021-11-07 10:07:58,013 INFO L78 Accepts]: Start accepts. Automaton has 2334 states and 2979 transitions. Word has length 136 [2021-11-07 10:07:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:07:58,014 INFO L470 AbstractCegarLoop]: Abstraction has 2334 states and 2979 transitions. [2021-11-07 10:07:58,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 10:07:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2334 states and 2979 transitions. [2021-11-07 10:07:58,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 10:07:58,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:07:58,016 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] [2021-11-07 10:07:58,049 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 10:07:58,235 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 10:07:58,236 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:07:58,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:07:58,236 INFO L85 PathProgramCache]: Analyzing trace with hash 957929247, now seen corresponding path program 1 times [2021-11-07 10:07:58,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:07:58,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763021014] [2021-11-07 10:07:58,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:58,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:07:58,371 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:07:58,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725691555] [2021-11-07 10:07:58,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:07:58,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:07:58,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:07:58,373 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 10:07:58,374 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 10:07:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:07:59,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 3312 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 10:07:59,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:07:59,636 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 10:07:59,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:07:59,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:07:59,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763021014] [2021-11-07 10:07:59,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:07:59,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725691555] [2021-11-07 10:07:59,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725691555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:07:59,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:07:59,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:07:59,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773234195] [2021-11-07 10:07:59,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:07:59,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:07:59,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:07:59,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:07:59,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:07:59,638 INFO L87 Difference]: Start difference. First operand 2334 states and 2979 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:00,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:00,154 INFO L93 Difference]: Finished difference Result 11262 states and 14389 transitions. [2021-11-07 10:08:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 10:08:00,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 152 [2021-11-07 10:08:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:00,184 INFO L225 Difference]: With dead ends: 11262 [2021-11-07 10:08:00,185 INFO L226 Difference]: Without dead ends: 9028 [2021-11-07 10:08:00,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 170.01ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-07 10:08:00,191 INFO L933 BasicCegarLoop]: 2946 mSDtfsCounter, 11299 mSDsluCounter, 11765 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11299 SdHoareTripleChecker+Valid, 14711 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.72ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.86ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:00,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11299 Valid, 14711 Invalid, 105 Unknown, 0 Unchecked, 16.72ms Time], IncrementalHoareTripleChecker [24 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 183.86ms Time] [2021-11-07 10:08:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9028 states. [2021-11-07 10:08:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9028 to 2344. [2021-11-07 10:08:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2344 states, 2281 states have (on average 1.310828583954406) internal successors, (2990), 2343 states have internal predecessors, (2990), 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 10:08:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 2990 transitions. [2021-11-07 10:08:00,342 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 2990 transitions. Word has length 152 [2021-11-07 10:08:00,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:00,343 INFO L470 AbstractCegarLoop]: Abstraction has 2344 states and 2990 transitions. [2021-11-07 10:08:00,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:00,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 2990 transitions. [2021-11-07 10:08:00,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 10:08:00,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:00,345 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] [2021-11-07 10:08:00,377 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 10:08:00,566 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 10:08:00,566 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:00,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:00,567 INFO L85 PathProgramCache]: Analyzing trace with hash -36764451, now seen corresponding path program 1 times [2021-11-07 10:08:00,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:00,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016879865] [2021-11-07 10:08:00,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:00,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:00,653 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:00,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156116597] [2021-11-07 10:08:00,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:00,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:00,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:00,655 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 10:08:00,657 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 10:08:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:01,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 3309 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:08:01,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:02,328 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 10:08:02,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:02,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:02,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016879865] [2021-11-07 10:08:02,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:02,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156116597] [2021-11-07 10:08:02,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156116597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:02,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:02,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:08:02,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306122247] [2021-11-07 10:08:02,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:02,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:08:02,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:02,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:08:02,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:08:02,331 INFO L87 Difference]: Start difference. First operand 2344 states and 2990 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:02,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:02,634 INFO L93 Difference]: Finished difference Result 6760 states and 8632 transitions. [2021-11-07 10:08:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:08:02,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 152 [2021-11-07 10:08:02,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:02,644 INFO L225 Difference]: With dead ends: 6760 [2021-11-07 10:08:02,644 INFO L226 Difference]: Without dead ends: 4581 [2021-11-07 10:08:02,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 190.46ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:08:02,649 INFO L933 BasicCegarLoop]: 2951 mSDtfsCounter, 5639 mSDsluCounter, 11804 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5639 SdHoareTripleChecker+Valid, 14755 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.06ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.64ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:02,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5639 Valid, 14755 Invalid, 44 Unknown, 0 Unchecked, 12.06ms Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 77.64ms Time] [2021-11-07 10:08:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2021-11-07 10:08:02,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 2399. [2021-11-07 10:08:02,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2336 states have (on average 1.3099315068493151) internal successors, (3060), 2398 states have internal predecessors, (3060), 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 10:08:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3060 transitions. [2021-11-07 10:08:02,750 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3060 transitions. Word has length 152 [2021-11-07 10:08:02,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:02,750 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3060 transitions. [2021-11-07 10:08:02,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:02,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3060 transitions. [2021-11-07 10:08:02,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 10:08:02,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:02,752 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] [2021-11-07 10:08:02,782 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 10:08:02,967 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 10:08:02,968 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:02,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1902397595, now seen corresponding path program 1 times [2021-11-07 10:08:02,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:02,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639361656] [2021-11-07 10:08:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:02,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:03,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:03,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036818379] [2021-11-07 10:08:03,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:03,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:03,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:03,066 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 10:08:03,067 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 10:08:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:03,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 3306 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:08:03,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:04,419 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 10:08:04,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:04,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:04,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639361656] [2021-11-07 10:08:04,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:04,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036818379] [2021-11-07 10:08:04,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036818379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:04,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:08:04,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653324010] [2021-11-07 10:08:04,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:04,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:08:04,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:04,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:08:04,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:08:04,422 INFO L87 Difference]: Start difference. First operand 2399 states and 3060 transitions. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:04,771 INFO L93 Difference]: Finished difference Result 6740 states and 8606 transitions. [2021-11-07 10:08:04,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:08:04,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 152 [2021-11-07 10:08:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:04,778 INFO L225 Difference]: With dead ends: 6740 [2021-11-07 10:08:04,778 INFO L226 Difference]: Without dead ends: 4581 [2021-11-07 10:08:04,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 168.54ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:08:04,783 INFO L933 BasicCegarLoop]: 2951 mSDtfsCounter, 5527 mSDsluCounter, 11806 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5527 SdHoareTripleChecker+Valid, 14757 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.14ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.68ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:04,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5527 Valid, 14757 Invalid, 40 Unknown, 0 Unchecked, 12.14ms Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 77.68ms Time] [2021-11-07 10:08:04,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2021-11-07 10:08:04,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 2419. [2021-11-07 10:08:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2356 states have (on average 1.3089983022071308) internal successors, (3084), 2418 states have internal predecessors, (3084), 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 10:08:04,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 3084 transitions. [2021-11-07 10:08:04,909 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 3084 transitions. Word has length 152 [2021-11-07 10:08:04,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:04,909 INFO L470 AbstractCegarLoop]: Abstraction has 2419 states and 3084 transitions. [2021-11-07 10:08:04,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 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 10:08:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 3084 transitions. [2021-11-07 10:08:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-07 10:08:04,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:04,911 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] [2021-11-07 10:08:04,953 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 10:08:05,131 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 10:08:05,132 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2117810087, now seen corresponding path program 1 times [2021-11-07 10:08:05,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:05,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770681289] [2021-11-07 10:08:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:05,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:05,215 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:05,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903988338] [2021-11-07 10:08:05,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:05,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:05,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:05,217 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 10:08:05,218 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 10:08:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:06,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 3303 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-07 10:08:06,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:06,405 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 10:08:06,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:06,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:06,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770681289] [2021-11-07 10:08:06,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:06,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903988338] [2021-11-07 10:08:06,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903988338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:06,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:06,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:08:06,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460075554] [2021-11-07 10:08:06,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:06,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:08:06,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:08:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:08:06,407 INFO L87 Difference]: Start difference. First operand 2419 states and 3084 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 10:08:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:07,326 INFO L93 Difference]: Finished difference Result 4598 states and 5867 transitions. [2021-11-07 10:08:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 10:08:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 152 [2021-11-07 10:08:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:07,332 INFO L225 Difference]: With dead ends: 4598 [2021-11-07 10:08:07,332 INFO L226 Difference]: Without dead ends: 2354 [2021-11-07 10:08:07,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:08:07,336 INFO L933 BasicCegarLoop]: 2958 mSDtfsCounter, 1 mSDsluCounter, 5686 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 665.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8644 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.83ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 746.39ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:07,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 8644 Invalid, 232 Unknown, 0 Unchecked, 7.83ms Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 746.39ms Time] [2021-11-07 10:08:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2021-11-07 10:08:07,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2354. [2021-11-07 10:08:07,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2354 states, 2291 states have (on average 1.3099083369707551) internal successors, (3001), 2353 states have internal predecessors, (3001), 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 10:08:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2354 states to 2354 states and 3001 transitions. [2021-11-07 10:08:07,445 INFO L78 Accepts]: Start accepts. Automaton has 2354 states and 3001 transitions. Word has length 152 [2021-11-07 10:08:07,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:07,445 INFO L470 AbstractCegarLoop]: Abstraction has 2354 states and 3001 transitions. [2021-11-07 10:08:07,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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 10:08:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2354 states and 3001 transitions. [2021-11-07 10:08:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 10:08:07,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:07,447 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] [2021-11-07 10:08:07,479 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 10:08:07,663 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 10:08:07,664 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:07,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:07,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1484791415, now seen corresponding path program 1 times [2021-11-07 10:08:07,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:07,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709609665] [2021-11-07 10:08:07,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:07,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:07,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:07,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624584100] [2021-11-07 10:08:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:07,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:07,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:07,743 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 10:08:07,748 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 10:08:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:08,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 10:08:08,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:09,119 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 10:08:09,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:09,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:09,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709609665] [2021-11-07 10:08:09,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:09,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624584100] [2021-11-07 10:08:09,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624584100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:09,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:09,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:08:09,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825917919] [2021-11-07 10:08:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:09,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:08:09,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:08:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:08:09,121 INFO L87 Difference]: Start difference. First operand 2354 states and 3001 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 10:08:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:09,874 INFO L93 Difference]: Finished difference Result 6753 states and 8589 transitions. [2021-11-07 10:08:09,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:08:09,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 155 [2021-11-07 10:08:09,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:09,883 INFO L225 Difference]: With dead ends: 6753 [2021-11-07 10:08:09,884 INFO L226 Difference]: Without dead ends: 4479 [2021-11-07 10:08:09,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.76ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:08:09,890 INFO L933 BasicCegarLoop]: 5546 mSDtfsCounter, 2679 mSDsluCounter, 13761 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 493.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2679 SdHoareTripleChecker+Valid, 19307 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.25ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 540.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:09,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2679 Valid, 19307 Invalid, 281 Unknown, 0 Unchecked, 13.25ms Time], IncrementalHoareTripleChecker [46 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 540.45ms Time] [2021-11-07 10:08:09,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2021-11-07 10:08:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 2434. [2021-11-07 10:08:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2434 states, 2371 states have (on average 1.3078869675242513) internal successors, (3101), 2433 states have internal predecessors, (3101), 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 10:08:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2434 states to 2434 states and 3101 transitions. [2021-11-07 10:08:10,012 INFO L78 Accepts]: Start accepts. Automaton has 2434 states and 3101 transitions. Word has length 155 [2021-11-07 10:08:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:10,012 INFO L470 AbstractCegarLoop]: Abstraction has 2434 states and 3101 transitions. [2021-11-07 10:08:10,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 10:08:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2434 states and 3101 transitions. [2021-11-07 10:08:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 10:08:10,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:10,014 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] [2021-11-07 10:08:10,045 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 10:08:10,227 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 10:08:10,228 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:10,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:10,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1162812939, now seen corresponding path program 1 times [2021-11-07 10:08:10,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:10,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128268023] [2021-11-07 10:08:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:10,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:10,313 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:10,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1227224267] [2021-11-07 10:08:10,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:10,314 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:10,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:10,315 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 10:08:10,317 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 10:08:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:11,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 3339 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 10:08:11,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:11,860 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 10:08:11,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:11,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:11,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128268023] [2021-11-07 10:08:11,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:11,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227224267] [2021-11-07 10:08:11,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227224267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:11,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:11,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 10:08:11,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903568873] [2021-11-07 10:08:11,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:11,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 10:08:11,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:11,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 10:08:11,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 10:08:11,863 INFO L87 Difference]: Start difference. First operand 2434 states and 3101 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 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 10:08:13,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:08:16,054 WARN L515 Checker$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 10:08:18,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:08:33,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-07 10:08:33,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:08:33,585 INFO L93 Difference]: Finished difference Result 6811 states and 8651 transitions. [2021-11-07 10:08:33,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 10:08:33,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 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 155 [2021-11-07 10:08:33,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:08:33,595 INFO L225 Difference]: With dead ends: 6811 [2021-11-07 10:08:33,595 INFO L226 Difference]: Without dead ends: 4456 [2021-11-07 10:08:33,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 358.20ms TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 10:08:33,601 INFO L933 BasicCegarLoop]: 4695 mSDtfsCounter, 2416 mSDsluCounter, 15065 mSDsCounter, 0 mSdLazyCounter, 4257 mSolverCounterSat, 75 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19316.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2416 SdHoareTripleChecker+Valid, 19760 SdHoareTripleChecker+Invalid, 4335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.19ms SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 4257 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21053.69ms IncrementalHoareTripleChecker+Time [2021-11-07 10:08:33,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2416 Valid, 19760 Invalid, 4335 Unknown, 0 Unchecked, 48.19ms Time], IncrementalHoareTripleChecker [75 Valid, 4257 Invalid, 3 Unknown, 0 Unchecked, 21053.69ms Time] [2021-11-07 10:08:33,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2021-11-07 10:08:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 2474. [2021-11-07 10:08:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2411 states have (on average 1.3069265864786395) internal successors, (3151), 2473 states have internal predecessors, (3151), 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 10:08:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3151 transitions. [2021-11-07 10:08:33,738 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3151 transitions. Word has length 155 [2021-11-07 10:08:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:08:33,738 INFO L470 AbstractCegarLoop]: Abstraction has 2474 states and 3151 transitions. [2021-11-07 10:08:33,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 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 10:08:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3151 transitions. [2021-11-07 10:08:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 10:08:33,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:08:33,740 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] [2021-11-07 10:08:33,779 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 10:08:33,967 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 10:08:33,968 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:08:33,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:08:33,968 INFO L85 PathProgramCache]: Analyzing trace with hash -48290695, now seen corresponding path program 1 times [2021-11-07 10:08:33,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:08:33,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145308786] [2021-11-07 10:08:33,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:33,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:08:34,051 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:08:34,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846308258] [2021-11-07 10:08:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:08:34,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:08:34,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:08:34,054 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 10:08:34,055 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 10:08:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:08:35,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 3331 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-07 10:08:35,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:08:36,332 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 10:08:36,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:08:36,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:08:36,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145308786] [2021-11-07 10:08:36,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:08:36,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846308258] [2021-11-07 10:08:36,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846308258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:08:36,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:08:36,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 10:08:36,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40235865] [2021-11-07 10:08:36,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:08:36,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 10:08:36,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:08:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 10:08:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:08:36,335 INFO L87 Difference]: Start difference. First operand 2474 states and 3151 transitions. Second operand has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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 10:09:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:09:00,943 INFO L93 Difference]: Finished difference Result 12235 states and 15430 transitions. [2021-11-07 10:09:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-07 10:09:00,943 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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 155 [2021-11-07 10:09:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:09:00,954 INFO L225 Difference]: With dead ends: 12235 [2021-11-07 10:09:00,954 INFO L226 Difference]: Without dead ends: 9853 [2021-11-07 10:09:00,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1756.33ms TimeCoverageRelationStatistics Valid=369, Invalid=1353, Unknown=0, NotChecked=0, Total=1722 [2021-11-07 10:09:00,958 INFO L933 BasicCegarLoop]: 7334 mSDtfsCounter, 17709 mSDsluCounter, 47341 mSDsCounter, 0 mSdLazyCounter, 9555 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20088.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17709 SdHoareTripleChecker+Valid, 54675 SdHoareTripleChecker+Invalid, 9879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 155.15ms SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 9555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22054.93ms IncrementalHoareTripleChecker+Time [2021-11-07 10:09:00,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17709 Valid, 54675 Invalid, 9879 Unknown, 0 Unchecked, 155.15ms Time], IncrementalHoareTripleChecker [324 Valid, 9555 Invalid, 0 Unknown, 0 Unchecked, 22054.93ms Time] [2021-11-07 10:09:00,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9853 states. [2021-11-07 10:09:01,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9853 to 2507. [2021-11-07 10:09:01,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2444 states have (on average 1.3076923076923077) internal successors, (3196), 2506 states have internal predecessors, (3196), 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 10:09:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3196 transitions. [2021-11-07 10:09:01,083 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3196 transitions. Word has length 155 [2021-11-07 10:09:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:09:01,084 INFO L470 AbstractCegarLoop]: Abstraction has 2507 states and 3196 transitions. [2021-11-07 10:09:01,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.923076923076923) internal successors, (155), 13 states have internal predecessors, (155), 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 10:09:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3196 transitions. [2021-11-07 10:09:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-07 10:09:01,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:09:01,085 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] [2021-11-07 10:09:01,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 10:09:01,307 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 10:09:01,308 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:09:01,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:09:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1188047161, now seen corresponding path program 1 times [2021-11-07 10:09:01,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:09:01,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298249611] [2021-11-07 10:09:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:01,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:09:01,384 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:09:01,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054736816] [2021-11-07 10:09:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:01,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:09:01,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:09:01,386 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 10:09:01,387 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 10:09:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:09:02,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:09:02,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:09:02,619 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 10:09:02,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:09:02,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:09:02,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298249611] [2021-11-07 10:09:02,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:09:02,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054736816] [2021-11-07 10:09:02,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054736816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:09:02,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:09:02,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:09:02,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974632668] [2021-11-07 10:09:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:09:02,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:09:02,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:09:02,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:09:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:09:02,622 INFO L87 Difference]: Start difference. First operand 2507 states and 3196 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 10:09:06,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:09:06,611 INFO L93 Difference]: Finished difference Result 5426 states and 6977 transitions. [2021-11-07 10:09:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:09:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 155 [2021-11-07 10:09:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:09:06,615 INFO L225 Difference]: With dead ends: 5426 [2021-11-07 10:09:06,615 INFO L226 Difference]: Without dead ends: 2966 [2021-11-07 10:09:06,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 37.22ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:09:06,619 INFO L933 BasicCegarLoop]: 3245 mSDtfsCounter, 692 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3343.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.79ms SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3766.91ms IncrementalHoareTripleChecker+Time [2021-11-07 10:09:06,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [692 Valid, 7871 Invalid, 1729 Unknown, 0 Unchecked, 16.79ms Time], IncrementalHoareTripleChecker [365 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 3766.91ms Time] [2021-11-07 10:09:06,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-11-07 10:09:06,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2687. [2021-11-07 10:09:06,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2624 states have (on average 1.2854420731707317) internal successors, (3373), 2686 states have internal predecessors, (3373), 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 10:09:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 3373 transitions. [2021-11-07 10:09:06,840 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 3373 transitions. Word has length 155 [2021-11-07 10:09:06,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:09:06,840 INFO L470 AbstractCegarLoop]: Abstraction has 2687 states and 3373 transitions. [2021-11-07 10:09:06,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 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 10:09:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 3373 transitions. [2021-11-07 10:09:06,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 10:09:06,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:09:06,842 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] [2021-11-07 10:09:06,877 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 10:09:07,063 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 10:09:07,064 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:09:07,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:09:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash 708247065, now seen corresponding path program 1 times [2021-11-07 10:09:07,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:09:07,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725622352] [2021-11-07 10:09:07,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:07,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:09:07,159 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:09:07,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886368506] [2021-11-07 10:09:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:07,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:09:07,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:09:07,163 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 10:09:07,165 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 10:09:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:09:09,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 149 conjunts are in the unsatisfiable core [2021-11-07 10:09:09,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:09:09,122 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 10:09:09,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:09,984 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 23 treesize of output 22 [2021-11-07 10:09:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:10,015 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 23 treesize of output 22 [2021-11-07 10:09:10,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:10,139 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 21 treesize of output 20 [2021-11-07 10:09:10,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:10,161 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 21 treesize of output 20 [2021-11-07 10:09:10,547 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 10:09:10,547 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 10:09:10,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:10,823 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-07 10:09:10,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 58 [2021-11-07 10:09:10,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:10,893 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-07 10:09:10,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 43 [2021-11-07 10:09:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:11,847 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-07 10:09:11,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 58 [2021-11-07 10:09:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:09:11,909 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-07 10:09:11,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2021-11-07 10:09:12,135 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 10:09:12,145 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 10:09:12,719 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 10:09:12,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:09:12,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:09:12,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725622352] [2021-11-07 10:09:12,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:09:12,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886368506] [2021-11-07 10:09:12,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886368506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:09:12,720 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:09:12,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-07 10:09:12,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550786736] [2021-11-07 10:09:12,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:09:12,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-07 10:09:12,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:09:12,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 10:09:12,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-11-07 10:09:12,722 INFO L87 Difference]: Start difference. First operand 2687 states and 3373 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 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 10:09:14,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:09:16,874 WARN L515 Checker$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 10:09:18,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:09:21,041 WARN L515 Checker$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 10:09:23,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:09:41,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:09:41,659 INFO L93 Difference]: Finished difference Result 5471 states and 6866 transitions. [2021-11-07 10:09:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 10:09:41,660 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 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 159 [2021-11-07 10:09:41,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:09:41,663 INFO L225 Difference]: With dead ends: 5471 [2021-11-07 10:09:41,663 INFO L226 Difference]: Without dead ends: 2857 [2021-11-07 10:09:41,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2713.38ms TimeCoverageRelationStatistics Valid=176, Invalid=754, Unknown=0, NotChecked=0, Total=930 [2021-11-07 10:09:41,667 INFO L933 BasicCegarLoop]: 2962 mSDtfsCounter, 501 mSDsluCounter, 21791 mSDsCounter, 0 mSdLazyCounter, 5219 mSolverCounterSat, 42 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24438.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 24753 SdHoareTripleChecker+Invalid, 5266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 79.29ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 5219 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26836.46ms IncrementalHoareTripleChecker+Time [2021-11-07 10:09:41,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [501 Valid, 24753 Invalid, 5266 Unknown, 0 Unchecked, 79.29ms Time], IncrementalHoareTripleChecker [42 Valid, 5219 Invalid, 5 Unknown, 0 Unchecked, 26836.46ms Time] [2021-11-07 10:09:41,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2857 states. [2021-11-07 10:09:41,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2857 to 2717. [2021-11-07 10:09:41,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2654 states have (on average 1.284476262245667) internal successors, (3409), 2716 states have internal predecessors, (3409), 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 10:09:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3409 transitions. [2021-11-07 10:09:41,777 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3409 transitions. Word has length 159 [2021-11-07 10:09:41,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:09:41,777 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 3409 transitions. [2021-11-07 10:09:41,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 18 states have internal predecessors, (159), 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 10:09:41,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3409 transitions. [2021-11-07 10:09:41,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 10:09:41,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:09:41,779 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] [2021-11-07 10:09:41,833 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 10:09:41,995 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 10:09:41,996 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:09:41,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:09:41,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1342161833, now seen corresponding path program 1 times [2021-11-07 10:09:41,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:09:41,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927369610] [2021-11-07 10:09:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:41,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:09:42,063 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:09:42,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796737868] [2021-11-07 10:09:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:09:42,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:09:42,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:09:42,065 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 10:09:42,067 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 10:09:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:09:42,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 3336 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 10:09:42,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:09:43,645 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 10:09:43,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:09:43,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:09:43,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927369610] [2021-11-07 10:09:43,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:09:43,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796737868] [2021-11-07 10:09:43,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796737868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:09:43,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:09:43,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 10:09:43,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4614062] [2021-11-07 10:09:43,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:09:43,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 10:09:43,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:09:43,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 10:09:43,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:09:43,647 INFO L87 Difference]: Start difference. First operand 2717 states and 3409 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 10:09:45,695 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 10:09:47,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:10:04,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:04,983 INFO L93 Difference]: Finished difference Result 6873 states and 8558 transitions. [2021-11-07 10:10:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:10:04,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 159 [2021-11-07 10:10:04,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:04,991 INFO L225 Difference]: With dead ends: 6873 [2021-11-07 10:10:04,991 INFO L226 Difference]: Without dead ends: 4220 [2021-11-07 10:10:04,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 282.39ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:10:04,996 INFO L933 BasicCegarLoop]: 3909 mSDtfsCounter, 1800 mSDsluCounter, 8042 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 640 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17517.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 11951 SdHoareTripleChecker+Invalid, 4863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.64ms SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20685.68ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:04,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1800 Valid, 11951 Invalid, 4863 Unknown, 0 Unchecked, 61.64ms Time], IncrementalHoareTripleChecker [640 Valid, 4221 Invalid, 2 Unknown, 0 Unchecked, 20685.68ms Time] [2021-11-07 10:10:05,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2021-11-07 10:10:05,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 2811. [2021-11-07 10:10:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2748 states have (on average 1.274745269286754) internal successors, (3503), 2810 states have internal predecessors, (3503), 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 10:10:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3503 transitions. [2021-11-07 10:10:05,180 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3503 transitions. Word has length 159 [2021-11-07 10:10:05,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:05,180 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3503 transitions. [2021-11-07 10:10:05,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 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 10:10:05,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3503 transitions. [2021-11-07 10:10:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 10:10:05,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:05,182 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] [2021-11-07 10:10:05,212 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 10:10:05,382 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 10:10:05,383 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:10:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:05,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1670633177, now seen corresponding path program 1 times [2021-11-07 10:10:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:05,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948709845] [2021-11-07 10:10:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:05,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:05,490 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:05,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234877594] [2021-11-07 10:10:05,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:05,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:05,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:05,492 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 10:10:05,493 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 10:10:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:06,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 3341 conjuncts, 126 conjunts are in the unsatisfiable core [2021-11-07 10:10:06,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:06,914 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 10:10:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:10:07,860 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 23 treesize of output 22 [2021-11-07 10:10:07,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:10:07,886 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 23 treesize of output 22 [2021-11-07 10:10:08,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:10:08,011 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 21 treesize of output 20 [2021-11-07 10:10:08,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:10:08,042 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 21 treesize of output 20 [2021-11-07 10:10:08,345 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 10:10:08,345 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 10:10:08,594 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-07 10:10:08,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 54 [2021-11-07 10:10:08,670 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-07 10:10:08,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 39 [2021-11-07 10:10:09,460 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-07 10:10:09,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 54 [2021-11-07 10:10:09,512 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-07 10:10:09,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 43 [2021-11-07 10:10:10,460 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 10:10:10,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:10,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:10,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948709845] [2021-11-07 10:10:10,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:10,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234877594] [2021-11-07 10:10:10,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234877594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:10,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:10,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 10:10:10,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142729745] [2021-11-07 10:10:10,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:10,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 10:10:10,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:10,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 10:10:10,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-11-07 10:10:10,462 INFO L87 Difference]: Start difference. First operand 2811 states and 3503 transitions. Second operand has 20 states, 20 states have (on average 7.95) internal successors, (159), 20 states have internal predecessors, (159), 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 10:10:12,502 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 10:10:14,702 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:10:16,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:10:19,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:10:21,114 WARN L515 Checker$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 10:10:45,233 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 10:10:49,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:49,875 INFO L93 Difference]: Finished difference Result 6656 states and 8218 transitions. [2021-11-07 10:10:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 10:10:49,875 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 7.95) internal successors, (159), 20 states have internal predecessors, (159), 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 159 [2021-11-07 10:10:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:49,880 INFO L225 Difference]: With dead ends: 6656 [2021-11-07 10:10:49,880 INFO L226 Difference]: Without dead ends: 3962 [2021-11-07 10:10:49,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 3739.60ms TimeCoverageRelationStatistics Valid=256, Invalid=1466, Unknown=0, NotChecked=0, Total=1722 [2021-11-07 10:10:49,884 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 1759 mSDsluCounter, 32287 mSDsCounter, 0 mSdLazyCounter, 7927 mSolverCounterSat, 226 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32719.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 35272 SdHoareTripleChecker+Invalid, 8159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 148.07ms SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 7927 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36207.98ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:49,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1759 Valid, 35272 Invalid, 8159 Unknown, 0 Unchecked, 148.07ms Time], IncrementalHoareTripleChecker [226 Valid, 7927 Invalid, 6 Unknown, 0 Unchecked, 36207.98ms Time] [2021-11-07 10:10:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2021-11-07 10:10:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 2832. [2021-11-07 10:10:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2769 states have (on average 1.2726616106897797) internal successors, (3524), 2831 states have internal predecessors, (3524), 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 10:10:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3524 transitions. [2021-11-07 10:10:50,064 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3524 transitions. Word has length 159 [2021-11-07 10:10:50,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:50,066 INFO L470 AbstractCegarLoop]: Abstraction has 2832 states and 3524 transitions. [2021-11-07 10:10:50,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.95) internal successors, (159), 20 states have internal predecessors, (159), 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 10:10:50,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3524 transitions. [2021-11-07 10:10:50,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-07 10:10:50,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:50,068 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] [2021-11-07 10:10:50,115 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 10:10:50,295 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 10:10:50,296 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:10:50,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:50,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1990545623, now seen corresponding path program 1 times [2021-11-07 10:10:50,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:50,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599574458] [2021-11-07 10:10:50,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:50,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:50,374 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:50,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1809388231] [2021-11-07 10:10:50,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:50,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:50,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:50,377 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 10:10:50,380 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 10:10:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:51,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:10:51,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:51,708 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 10:10:51,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:51,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:51,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599574458] [2021-11-07 10:10:51,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:51,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809388231] [2021-11-07 10:10:51,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809388231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:51,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:51,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 10:10:51,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564136508] [2021-11-07 10:10:51,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:51,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 10:10:51,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:51,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 10:10:51,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 10:10:51,710 INFO L87 Difference]: Start difference. First operand 2832 states and 3524 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 10:10:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:10:52,345 INFO L93 Difference]: Finished difference Result 5510 states and 6848 transitions. [2021-11-07 10:10:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 10:10:52,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 159 [2021-11-07 10:10:52,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:10:52,349 INFO L225 Difference]: With dead ends: 5510 [2021-11-07 10:10:52,349 INFO L226 Difference]: Without dead ends: 2802 [2021-11-07 10:10:52,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:10:52,352 INFO L933 BasicCegarLoop]: 2935 mSDtfsCounter, 27 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 390.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 8739 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.93ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 449.36ms IncrementalHoareTripleChecker+Time [2021-11-07 10:10:52,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 8739 Invalid, 170 Unknown, 0 Unchecked, 5.93ms Time], IncrementalHoareTripleChecker [37 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 449.36ms Time] [2021-11-07 10:10:52,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2021-11-07 10:10:52,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2786. [2021-11-07 10:10:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2723 states have (on average 1.2651487330150568) internal successors, (3445), 2785 states have internal predecessors, (3445), 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 10:10:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3445 transitions. [2021-11-07 10:10:52,470 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3445 transitions. Word has length 159 [2021-11-07 10:10:52,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:10:52,470 INFO L470 AbstractCegarLoop]: Abstraction has 2786 states and 3445 transitions. [2021-11-07 10:10:52,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 10:10:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3445 transitions. [2021-11-07 10:10:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-07 10:10:52,471 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:10:52,472 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] [2021-11-07 10:10:52,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 10:10:52,678 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 10:10:52,678 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:10:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:10:52,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1787039805, now seen corresponding path program 1 times [2021-11-07 10:10:52,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:10:52,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065413699] [2021-11-07 10:10:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:52,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:10:52,761 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:10:52,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705736567] [2021-11-07 10:10:52,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:10:52,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:10:52,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:10:52,763 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 10:10:52,765 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 10:10:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:10:55,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 3363 conjuncts, 166 conjunts are in the unsatisfiable core [2021-11-07 10:10:55,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:10:57,603 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 43 treesize of output 42 [2021-11-07 10:10:57,611 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 32 treesize of output 31 [2021-11-07 10:10:57,619 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 21 treesize of output 20 [2021-11-07 10:10:57,830 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 10:10:57,830 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 10:10:57,980 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 10:10:57,989 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 10:10:58,726 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 10:10:58,736 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 10:10:59,341 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 10:10:59,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:10:59,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:10:59,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065413699] [2021-11-07 10:10:59,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:10:59,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705736567] [2021-11-07 10:10:59,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705736567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:10:59,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:10:59,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-07 10:10:59,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338377892] [2021-11-07 10:10:59,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:10:59,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 10:10:59,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:10:59,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 10:10:59,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2021-11-07 10:10:59,344 INFO L87 Difference]: Start difference. First operand 2786 states and 3445 transitions. Second operand has 22 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 22 states have internal predecessors, (160), 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 10:11:01,388 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 10:11:03,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:05,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:07,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:09,959 WARN L515 Checker$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 10:11:12,090 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 10:11:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:11:46,340 INFO L93 Difference]: Finished difference Result 7899 states and 9730 transitions. [2021-11-07 10:11:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 10:11:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 22 states have internal predecessors, (160), 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 160 [2021-11-07 10:11:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:11:46,346 INFO L225 Difference]: With dead ends: 7899 [2021-11-07 10:11:46,346 INFO L226 Difference]: Without dead ends: 5314 [2021-11-07 10:11:46,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3572.93ms TimeCoverageRelationStatistics Valid=251, Invalid=1231, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 10:11:46,349 INFO L933 BasicCegarLoop]: 4669 mSDtfsCounter, 6012 mSDsluCounter, 39146 mSDsCounter, 0 mSdLazyCounter, 10244 mSolverCounterSat, 501 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39350.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6012 SdHoareTripleChecker+Valid, 43815 SdHoareTripleChecker+Invalid, 12057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 151.25ms SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 10244 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 1306 IncrementalHoareTripleChecker+Unchecked, 43966.88ms IncrementalHoareTripleChecker+Time [2021-11-07 10:11:46,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6012 Valid, 43815 Invalid, 12057 Unknown, 0 Unchecked, 151.25ms Time], IncrementalHoareTripleChecker [501 Valid, 10244 Invalid, 6 Unknown, 1306 Unchecked, 43966.88ms Time] [2021-11-07 10:11:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5314 states. [2021-11-07 10:11:46,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5314 to 2853. [2021-11-07 10:11:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2790 states have (on average 1.2627240143369176) internal successors, (3523), 2852 states have internal predecessors, (3523), 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 10:11:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3523 transitions. [2021-11-07 10:11:46,477 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3523 transitions. Word has length 160 [2021-11-07 10:11:46,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:11:46,477 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 3523 transitions. [2021-11-07 10:11:46,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.2727272727272725) internal successors, (160), 22 states have internal predecessors, (160), 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 10:11:46,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3523 transitions. [2021-11-07 10:11:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-07 10:11:46,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:11:46,478 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] [2021-11-07 10:11:46,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-07 10:11:46,679 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 10:11:46,679 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:11:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:11:46,680 INFO L85 PathProgramCache]: Analyzing trace with hash 562446205, now seen corresponding path program 1 times [2021-11-07 10:11:46,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:11:46,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20168690] [2021-11-07 10:11:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:46,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:11:46,753 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:11:46,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227491115] [2021-11-07 10:11:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:11:46,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:11:46,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:11:46,755 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 10:11:46,769 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 10:11:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:11:49,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 3363 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-07 10:11:49,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:11:50,938 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 43 treesize of output 42 [2021-11-07 10:11:50,946 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 32 treesize of output 31 [2021-11-07 10:11:50,954 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 21 treesize of output 20 [2021-11-07 10:11:51,133 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 10:11:51,133 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 10:11:51,267 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 10:11:51,277 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 10:11:52,010 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 10:11:52,019 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 10:11:52,264 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:11:52,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-07 10:11:52,916 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 10:11:52,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:11:52,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:11:52,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20168690] [2021-11-07 10:11:52,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:11:52,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227491115] [2021-11-07 10:11:52,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227491115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:11:52,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:11:52,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-11-07 10:11:52,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300990532] [2021-11-07 10:11:52,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:11:52,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 10:11:52,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:11:52,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 10:11:52,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-07 10:11:52,919 INFO L87 Difference]: Start difference. First operand 2853 states and 3523 transitions. Second operand has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 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 10:11:54,997 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 10:11:57,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:11:59,263 WARN L515 Checker$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 10:12:01,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:03,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:05,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:07,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:10,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 10:12:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:12:56,773 INFO L93 Difference]: Finished difference Result 8488 states and 10405 transitions. [2021-11-07 10:12:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 10:12:56,774 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 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 160 [2021-11-07 10:12:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:12:56,783 INFO L225 Difference]: With dead ends: 8488 [2021-11-07 10:12:56,784 INFO L226 Difference]: Without dead ends: 5910 [2021-11-07 10:12:56,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 4647.63ms TimeCoverageRelationStatistics Valid=373, Invalid=1979, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 10:12:56,789 INFO L933 BasicCegarLoop]: 4739 mSDtfsCounter, 8934 mSDsluCounter, 45044 mSDsCounter, 0 mSdLazyCounter, 12515 mSolverCounterSat, 427 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52457.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8934 SdHoareTripleChecker+Valid, 49783 SdHoareTripleChecker+Invalid, 13465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 212.56ms SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 12515 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 515 IncrementalHoareTripleChecker+Unchecked, 59310.67ms IncrementalHoareTripleChecker+Time [2021-11-07 10:12:56,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8934 Valid, 49783 Invalid, 13465 Unknown, 0 Unchecked, 212.56ms Time], IncrementalHoareTripleChecker [427 Valid, 12515 Invalid, 8 Unknown, 515 Unchecked, 59310.67ms Time] [2021-11-07 10:12:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2021-11-07 10:12:56,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 2860. [2021-11-07 10:12:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2797 states have (on average 1.262066499821237) internal successors, (3530), 2859 states have internal predecessors, (3530), 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 10:12:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 3530 transitions. [2021-11-07 10:12:56,952 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 3530 transitions. Word has length 160 [2021-11-07 10:12:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:12:56,953 INFO L470 AbstractCegarLoop]: Abstraction has 2860 states and 3530 transitions. [2021-11-07 10:12:56,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.956521739130435) internal successors, (160), 23 states have internal predecessors, (160), 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 10:12:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 3530 transitions. [2021-11-07 10:12:56,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-07 10:12:56,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:12:56,954 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] [2021-11-07 10:12:56,999 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 10:12:57,154 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 10:12:57,155 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:12:57,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:12:57,156 INFO L85 PathProgramCache]: Analyzing trace with hash 380601358, now seen corresponding path program 1 times [2021-11-07 10:12:57,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:12:57,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387582762] [2021-11-07 10:12:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:57,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:12:57,233 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:12:57,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800356753] [2021-11-07 10:12:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:12:57,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:12:57,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:12:57,235 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 10:12:57,236 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 10:19:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:19:50,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 3382 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-07 10:19:50,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:19:50,905 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 10:19:50,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 55 [2021-11-07 10:19:53,294 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 10:19:53,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:19:53,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:19:53,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387582762] [2021-11-07 10:19:53,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:19:53,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800356753] [2021-11-07 10:19:53,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800356753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:19:53,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:19:53,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 10:19:53,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028558584] [2021-11-07 10:19:53,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:19:53,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 10:19:53,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:19:53,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 10:19:53,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:19:53,296 INFO L87 Difference]: Start difference. First operand 2860 states and 3530 transitions. Second operand has 16 states, 16 states have (on average 10.0625) internal successors, (161), 16 states have internal predecessors, (161), 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 10:20:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:24,873 INFO L93 Difference]: Finished difference Result 12128 states and 14728 transitions. [2021-11-07 10:20:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-07 10:20:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.0625) internal successors, (161), 16 states have internal predecessors, (161), 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 161 [2021-11-07 10:20:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:24,890 INFO L225 Difference]: With dead ends: 12128 [2021-11-07 10:20:24,890 INFO L226 Difference]: Without dead ends: 9418 [2021-11-07 10:20:24,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 705 ImplicationChecksByTransitivity, 4728.97ms TimeCoverageRelationStatistics Valid=682, Invalid=2180, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 10:20:24,899 INFO L933 BasicCegarLoop]: 4790 mSDtfsCounter, 24625 mSDsluCounter, 31438 mSDsCounter, 0 mSdLazyCounter, 8292 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22601.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24625 SdHoareTripleChecker+Valid, 36228 SdHoareTripleChecker+Invalid, 9124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 165.29ms SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 8292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26265.58ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:24,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24625 Valid, 36228 Invalid, 9124 Unknown, 0 Unchecked, 165.29ms Time], IncrementalHoareTripleChecker [832 Valid, 8292 Invalid, 0 Unknown, 0 Unchecked, 26265.58ms Time] [2021-11-07 10:20:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9418 states. [2021-11-07 10:20:25,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9418 to 2866. [2021-11-07 10:20:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2803 states have (on average 1.2615055297895112) internal successors, (3536), 2865 states have internal predecessors, (3536), 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 10:20:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3536 transitions. [2021-11-07 10:20:25,103 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3536 transitions. Word has length 161 [2021-11-07 10:20:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:25,103 INFO L470 AbstractCegarLoop]: Abstraction has 2866 states and 3536 transitions. [2021-11-07 10:20:25,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.0625) internal successors, (161), 16 states have internal predecessors, (161), 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 10:20:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3536 transitions. [2021-11-07 10:20:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-07 10:20:25,105 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:25,105 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] [2021-11-07 10:20:25,305 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forcibly destroying the process [2021-11-07 10:20:25,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 137 [2021-11-07 10:20:25,375 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 10:20:25,376 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:20:25,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:25,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1192089338, now seen corresponding path program 1 times [2021-11-07 10:20:25,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:20:25,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900780234] [2021-11-07 10:20:25,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:25,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:20:25,461 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:20:25,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849431615] [2021-11-07 10:20:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:25,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:20:25,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:20:25,464 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 10:20:25,470 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 10:20:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:26,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 3388 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-07 10:20:26,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:26,800 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 10:20:26,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:20:26,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:20:26,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900780234] [2021-11-07 10:20:26,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:20:26,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849431615] [2021-11-07 10:20:26,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849431615] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:20:26,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:26,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 10:20:26,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978415752] [2021-11-07 10:20:26,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:20:26,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:20:26,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:20:26,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:20:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:20:26,802 INFO L87 Difference]: Start difference. First operand 2866 states and 3536 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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 10:20:29,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:20:29,980 INFO L93 Difference]: Finished difference Result 8691 states and 10711 transitions. [2021-11-07 10:20:29,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 10:20:29,981 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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 161 [2021-11-07 10:20:29,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:20:29,990 INFO L225 Difference]: With dead ends: 8691 [2021-11-07 10:20:29,990 INFO L226 Difference]: Without dead ends: 5950 [2021-11-07 10:20:29,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 249.76ms TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-07 10:20:29,995 INFO L933 BasicCegarLoop]: 4895 mSDtfsCounter, 3397 mSDsluCounter, 21473 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2247.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3397 SdHoareTripleChecker+Valid, 26368 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.86ms SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2527.42ms IncrementalHoareTripleChecker+Time [2021-11-07 10:20:29,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3397 Valid, 26368 Invalid, 992 Unknown, 0 Unchecked, 27.86ms Time], IncrementalHoareTripleChecker [101 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 2527.42ms Time] [2021-11-07 10:20:30,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5950 states. [2021-11-07 10:20:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5950 to 2866. [2021-11-07 10:20:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2803 states have (on average 1.258294684266857) internal successors, (3527), 2865 states have internal predecessors, (3527), 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 10:20:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 3527 transitions. [2021-11-07 10:20:30,192 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 3527 transitions. Word has length 161 [2021-11-07 10:20:30,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:20:30,193 INFO L470 AbstractCegarLoop]: Abstraction has 2866 states and 3527 transitions. [2021-11-07 10:20:30,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 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 10:20:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 3527 transitions. [2021-11-07 10:20:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-07 10:20:30,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:20:30,194 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] [2021-11-07 10:20:30,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-07 10:20:30,394 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 10:20:30,395 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 60 more)] === [2021-11-07 10:20:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:20:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -841556905, now seen corresponding path program 1 times [2021-11-07 10:20:30,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:20:30,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623733619] [2021-11-07 10:20:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:30,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:20:30,472 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 10:20:30,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [236731439] [2021-11-07 10:20:30,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:20:30,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:20:30,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:20:30,474 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 10:20:30,488 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 10:20:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:20:32,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 3358 conjuncts, 156 conjunts are in the unsatisfiable core [2021-11-07 10:20:32,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:20:32,644 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 10:20:33,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:33,160 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 10:20:33,922 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-07 10:20:33,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-07 10:20:34,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2021-11-07 10:20:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2021-11-07 10:20:34,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:34,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2021-11-07 10:20:35,118 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-07 10:20:35,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2021-11-07 10:20:35,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:20:35,437 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-07 10:20:35,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-11-07 10:20:43,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:20:43,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623733619] [2021-11-07 10:20:43,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 10:20:43,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236731439] [2021-11-07 10:20:43,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.base, ULTIMATE.start_aws_mul_u64_checked_~r.offset] [2021-11-07 10:20:43,711 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:20:43,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 10:20:43,711 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-07 10:20:43,711 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 10:20:43,717 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (62 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (61 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (60 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (59 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (58 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (57 of 63 remaining) [2021-11-07 10:20:43,719 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (56 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (55 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (54 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (53 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (52 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (51 of 63 remaining) [2021-11-07 10:20:43,720 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (50 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (49 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (48 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (47 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (46 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (45 of 63 remaining) [2021-11-07 10:20:43,721 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (44 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (43 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION (42 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION (41 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (40 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION (39 of 63 remaining) [2021-11-07 10:20:43,722 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (38 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION (37 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION (36 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION (35 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION (34 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION (33 of 63 remaining) [2021-11-07 10:20:43,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION (32 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION (31 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION (30 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION (29 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION (28 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION (27 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION (26 of 63 remaining) [2021-11-07 10:20:43,724 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION (25 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION (24 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION (23 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION (22 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION (21 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION (20 of 63 remaining) [2021-11-07 10:20:43,725 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION (19 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION (18 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION (17 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION (16 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION (15 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION (14 of 63 remaining) [2021-11-07 10:20:43,726 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION (13 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION (12 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION (11 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION (10 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION (9 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION (8 of 63 remaining) [2021-11-07 10:20:43,727 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION (7 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION (6 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION (5 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION (4 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION (3 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION (2 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION (1 of 63 remaining) [2021-11-07 10:20:43,728 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION (0 of 63 remaining) [2021-11-07 10:20:43,782 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 10:20:43,943 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 10:20:43,946 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] [2021-11-07 10:20:43,949 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 10:20:44,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 10:20:44 BoogieIcfgContainer [2021-11-07 10:20:44,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 10:20:44,003 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 10:20:44,003 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 10:20:44,004 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 10:20:44,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:07:28" (3/4) ... [2021-11-07 10:20:44,006 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 10:20:44,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 10:20:44,007 INFO L158 Benchmark]: Toolchain (without parser) took 816416.81ms. Allocated memory was 102.8MB in the beginning and 1.1GB in the end (delta: 1.0GB). Free memory was 59.0MB in the beginning and 663.6MB in the end (delta: -604.5MB). Peak memory consumption was 420.7MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,007 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:20:44,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2187.34ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 46.0MB in the end (delta: 12.8MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,008 INFO L158 Benchmark]: Boogie Procedure Inliner took 371.31ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 46.0MB in the beginning and 78.7MB in the end (delta: -32.7MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,008 INFO L158 Benchmark]: Boogie Preprocessor took 429.83ms. Allocated memory is still 161.5MB. Free memory was 78.7MB in the beginning and 55.9MB in the end (delta: 22.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,008 INFO L158 Benchmark]: RCFGBuilder took 18287.33ms. Allocated memory was 161.5MB in the beginning and 834.7MB in the end (delta: 673.2MB). Free memory was 55.9MB in the beginning and 546.6MB in the end (delta: -490.7MB). Peak memory consumption was 396.5MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,008 INFO L158 Benchmark]: TraceAbstraction took 795131.68ms. Allocated memory was 834.7MB in the beginning and 1.1GB in the end (delta: 293.6MB). Free memory was 546.6MB in the beginning and 663.6MB in the end (delta: -116.9MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. [2021-11-07 10:20:44,009 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 1.1GB. Free memory is still 663.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-07 10:20:44,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2187.34ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 46.0MB in the end (delta: 12.8MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 371.31ms. Allocated memory was 123.7MB in the beginning and 161.5MB in the end (delta: 37.7MB). Free memory was 46.0MB in the beginning and 78.7MB in the end (delta: -32.7MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 429.83ms. Allocated memory is still 161.5MB. Free memory was 78.7MB in the beginning and 55.9MB in the end (delta: 22.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. * RCFGBuilder took 18287.33ms. Allocated memory was 161.5MB in the beginning and 834.7MB in the end (delta: 673.2MB). Free memory was 55.9MB in the beginning and 546.6MB in the end (delta: -490.7MB). Peak memory consumption was 396.5MB. Max. memory is 16.1GB. * TraceAbstraction took 795131.68ms. Allocated memory was 834.7MB in the beginning and 1.1GB in the end (delta: 293.6MB). Free memory was 546.6MB in the beginning and 663.6MB in the end (delta: -116.9MB). Peak memory consumption was 177.7MB. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 1.1GB. Free memory is still 663.6MB. 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 7788. 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; [L7787-L7935] 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", } , }; [L7938-L7941] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7943-L7952] 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.") } , }; [L7954-L7957] 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])), }; [L7959-L7963] static _Bool s_common_library_initialized = 0 ; [L8450] 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 FALSE !(list->current_size == 0 && list->length == 0) [L6749] EXPR list->current_size [L211] COND FALSE !(!cond) [L6935] return malloc(size); [L6749] list->data = bounded_malloc(list->current_size) [L261] return __VERIFIER_nondet_bool(); [L6750-L6752] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L6750-L6752] list->alloc = nondet_bool() ? ((void *)0) : can_fail_allocator() [L6806] queue->pred = nondet_compare [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _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; [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8220] 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; [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8456] EXPR queue.container.item_size [L261] return __VERIFIER_nondet_bool(); [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L211] COND FALSE !(!cond) [L6935] return malloc(size); [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L6949-L6951] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L8456] void *item = can_fail_malloc(queue.container.item_size); [L261] return __VERIFIER_nondet_bool(); [L6949-L6951] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L6949-L6951] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L8457] struct aws_priority_queue_node *backpointer = can_fail_malloc(sizeof(struct aws_priority_queue_node)); [L8460] item && ((((queue.container.item_size)) == 0) || ((item))) [L8460] EXPR queue.container.item_size [L8460] item && ((((queue.container.item_size)) == 0) || ((item))) [L211] COND FALSE !(!cond) [L8279] COND FALSE !(!queue) [L8286] EXPR queue->pred [L8285-L8288] _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; [L8290-L8291] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8220] 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; [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230] EXPR queue->backpointers.current_size [L8230] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8231] EXPR queue->backpointers.data [L8230-L8233] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8228-L8233] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8241] EXPR queue->backpointers.item_size [L8240-L8241] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8244] EXPR queue->backpointers.length [L8244] EXPR queue->container.length [L8243-L8244] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8247] EXPR queue->backpointers.current_size [L8246-L8247] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8255-L8258] _Bool backpointers_valid_deep = 1 ; [L8263] EXPR queue->backpointers.current_size [L8263] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8263-L8264] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8261-L8265] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8267-L8270] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8272] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8272] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8294-L8295] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8296] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8321] item && ((((queue->container.item_size)) == 0) || ((item))) [L8321] EXPR queue->container.item_size [L8321] item && ((((queue->container.item_size)) == 0) || ((item))) [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) [L2989] val && ((((list->item_size)) == 0) || ((val))) [L2989] EXPR list->item_size [L2989] val && ((((list->item_size)) == 0) || ((val))) [L211] COND FALSE !(!cond) [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: 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: 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2319 locations, 63 error locations. Started 1 CEGAR loops. OverallTime: 795010.63ms, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 67.93ms, AutomataDifference: 306260.99ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 38.00ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 30 mSolverCounterUnknown, 148649 SdHoareTripleChecker+Valid, 279398.07ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 148649 mSDsluCounter, 438166 SdHoareTripleChecker+Invalid, 248987.93ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1821 IncrementalHoareTripleChecker+Unchecked, 350492 mSDsCounter, 3852 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69366 IncrementalHoareTripleChecker+Invalid, 75069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3852 mSolverCounterUnsat, 87674 mSDtfsCounter, 69366 mSolverCounterSat, 1333.06ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3272 GetRequests, 2918 SyntacticMatches, 0 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2715 ImplicationChecksByTransitivity, 23867.11ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2866occurred in iteration=23, InterpolantAutomatonStates: 305, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 3141.74ms AutomataMinimizationTime, 24 MinimizatonAttempts, 42979 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3313.31ms SsaConstructionTime, 431680.30ms SatisfiabilityAnalysisTime, 41076.54ms InterpolantComputationTime, 3444 NumberOfCodeBlocks, 3444 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3258 ConstructedInterpolants, 4 QuantifiedInterpolants, 10796 SizeOfPredicates, 407 NumberOfNonLiveVariables, 71341 ConjunctsInSsa, 1109 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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 10:20:44,227 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 10:20:44,267 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_push_ref_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 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:20:46,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:20:46,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:20:46,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:20:46,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:20:46,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:20:46,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:20:46,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:20:46,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:20:46,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:20:46,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:20:46,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:20:46,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:20:46,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:20:46,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:20:46,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:20:46,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:20:46,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:20:46,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:20:46,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:20:46,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:20:46,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:20:46,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:20:46,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:20:46,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:20:46,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:20:46,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:20:46,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:20:46,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:20:46,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:20:46,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:20:46,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:20:46,298 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:20:46,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:20:46,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:20:46,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:20:46,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:20:46,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:20:46,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:20:46,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:20:46,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:20:46,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-07 10:20:46,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:20:46,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:20:46,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:20:46,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:20:46,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:20:46,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:20:46,351 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:20:46,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:20:46,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:20:46,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:20:46,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:20:46,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:20:46,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 10:20:46,354 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 10:20:46,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:20:46,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:20:46,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:20:46,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:20:46,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:20:46,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:20:46,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:20:46,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:20:46,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:20:46,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:20:46,356 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 10:20:46,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 10:20:46,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:20:46,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:20:46,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:20:46,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:20:46,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 10:20:46,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00eefb20b1e97d60d3c6a842acdb225be14d327e18edfa8146d29fe131145042 [2021-11-07 10:20:46,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:20:46,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:20:46,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:20:46,734 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:20:46,737 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:20:46,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 10:20:46,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edfde129/8dabccc32d6f4b86a5ee371f0c91920a/FLAGaa5e4e668 [2021-11-07 10:20:47,538 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:20:47,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_ref_harness.i [2021-11-07 10:20:47,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edfde129/8dabccc32d6f4b86a5ee371f0c91920a/FLAGaa5e4e668 [2021-11-07 10:20:47,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0edfde129/8dabccc32d6f4b86a5ee371f0c91920a [2021-11-07 10:20:47,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:20:47,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:20:47,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:20:47,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:20:47,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:20:47,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:20:47" (1/1) ... [2021-11-07 10:20:47,817 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310aedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:47, skipping insertion in model container [2021-11-07 10:20:47,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:20:47" (1/1) ... [2021-11-07 10:20:47,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:20:47,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:20:48,195 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_push_ref_harness.i[4501,4514] [2021-11-07 10:20:48,202 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_push_ref_harness.i[4561,4574] [2021-11-07 10:20:48,225 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:20:48,231 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:20:48,886 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,888 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,889 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,890 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,904 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,905 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,906 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,907 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,908 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,909 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:48,910 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,185 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:20:49,187 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:20:49,188 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:20:49,189 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:20:49,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:20:49,190 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:20:49,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:20:49,191 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:20:49,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:20:49,192 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:20:49,291 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:20:49,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,344 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,405 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,407 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,408 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,410 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,415 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,418 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,419 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,425 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,426 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:20:49,484 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:20:49,511 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_push_ref_harness.i[4501,4514] [2021-11-07 10:20:49,512 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_push_ref_harness.i[4561,4574] [2021-11-07 10:20:49,514 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:20:49,514 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:20:49,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,579 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,580 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:20:49,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:20:49,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:20:49,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:20:49,642 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:20:49,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:20:49,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:20:49,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:20:49,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:20:49,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:20:49,681 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 10:20:49,710 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,715 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,752 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,762 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,763 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:20:49,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:20:50,055 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:20:50,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50 WrapperNode [2021-11-07 10:20:50,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:20:50,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:20:50,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:20:50,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:20:50,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:20:50,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:20:50,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:20:50,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:20:50,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:50,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:51,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... [2021-11-07 10:20:51,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:20:51,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:20:51,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:20:51,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:20:51,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:20:50" (1/1) ... Killed by 15