./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_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 d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:54:08,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:54:08,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:54:08,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:54:08,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:54:08,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:54:08,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:54:08,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:54:08,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:54:08,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:54:08,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:54:08,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:54:08,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:54:08,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:54:08,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:54:08,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:54:08,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:54:08,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:54:08,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:54:08,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:54:08,435 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:54:08,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:54:08,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:54:08,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:54:08,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:54:08,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:54:08,442 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:54:08,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:54:08,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:54:08,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:54:08,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:54:08,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:54:08,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:54:08,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:54:08,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:54:08,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:54:08,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:54:08,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:54:08,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:54:08,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:54:08,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:54:08,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:54:08,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-13 22:54:08,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:54:08,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:54:08,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:54:08,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:54:08,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:54:08,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:54:08,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:54:08,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:54:08,486 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:54:08,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:54:08,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 22:54:08,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:54:08,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:54:08,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:54:08,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:54:08,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:54:08,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:54:08,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:54:08,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:54:08,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:54:08,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:54:08,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:54:08,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:54:08,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:54:08,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:54:08,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 22:54:08,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 22:54:08,490 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:54:08,490 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:54:08,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:54:08,491 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-07-13 22:54:08,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:54:08,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:54:08,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:54:08,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:54:08,706 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:54:08,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-07-13 22:54:08,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e7949d3/8629195be93847619bed2d59b7e34bb5/FLAGf812889f3 [2022-07-13 22:54:09,459 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:54:09,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-07-13 22:54:09,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e7949d3/8629195be93847619bed2d59b7e34bb5/FLAGf812889f3 [2022-07-13 22:54:09,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37e7949d3/8629195be93847619bed2d59b7e34bb5 [2022-07-13 22:54:09,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:54:09,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:54:09,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:54:09,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:54:09,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:54:09,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:09" (1/1) ... [2022-07-13 22:54:09,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413de994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:09, skipping insertion in model container [2022-07-13 22:54:09,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:09" (1/1) ... [2022-07-13 22:54:09,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:54:09,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:54:10,078 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-07-13 22:54:10,084 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-07-13 22:54:10,656 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,658 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,659 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,659 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,660 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,672 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,674 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,676 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,678 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,681 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,682 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,683 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,683 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,883 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:54:10,885 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:54:10,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:54:10,886 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:54:10,887 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:54:10,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:54:10,888 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:54:10,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:54:10,889 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:54:10,890 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:54:10,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:54:10,988 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:10,993 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,038 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,039 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,039 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,039 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,040 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,040 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,041 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,041 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,041 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,042 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,042 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,042 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,043 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,045 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,046 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,049 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,049 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,055 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,056 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,056 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:54:11,100 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 22:54:11,111 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-07-13 22:54:11,112 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-07-13 22:54:11,150 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,153 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,153 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,154 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,154 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,165 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,171 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,172 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,173 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,173 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,174 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,174 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,212 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:54:11,220 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:54:11,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:54:11,221 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:54:11,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:54:11,222 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:54:11,223 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:54:11,224 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:54:11,224 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:54:11,224 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:54:11,259 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:54:11,270 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,273 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,329 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,330 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,331 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,331 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,331 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,335 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,335 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,339 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,340 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,340 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:11,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 22:54:11,501 INFO L208 MainTranslator]: Completed translation [2022-07-13 22:54:11,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11 WrapperNode [2022-07-13 22:54:11,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 22:54:11,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 22:54:11,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 22:54:11,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 22:54:11,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,674 INFO L137 Inliner]: procedures = 697, calls = 1879, calls flagged for inlining = 60, calls inlined = 19, statements flattened = 1163 [2022-07-13 22:54:11,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 22:54:11,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 22:54:11,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 22:54:11,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 22:54:11,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 22:54:11,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 22:54:11,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 22:54:11,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 22:54:11,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (1/1) ... [2022-07-13 22:54:11,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:54:11,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:11,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 22:54:11,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 22:54:11,879 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-07-13 22:54:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-07-13 22:54:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_init_dynamic [2022-07-13 22:54:11,880 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_init_dynamic [2022-07-13 22:54:11,880 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-07-13 22:54:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-07-13 22:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 22:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-13 22:54:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-13 22:54:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-13 22:54:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-13 22:54:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-13 22:54:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-13 22:54:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-07-13 22:54:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-07-13 22:54:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-07-13 22:54:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-07-13 22:54:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 22:54:11,883 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-13 22:54:11,884 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-13 22:54:11,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 22:54:11,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 22:54:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 22:54:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 22:54:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-07-13 22:54:11,889 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-07-13 22:54:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-13 22:54:11,890 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-13 22:54:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 22:54:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 22:54:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-13 22:54:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-13 22:54:11,894 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-13 22:54:11,894 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-13 22:54:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-13 22:54:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-13 22:54:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-07-13 22:54:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-07-13 22:54:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-07-13 22:54:11,895 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-07-13 22:54:11,895 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-13 22:54:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-13 22:54:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-13 22:54:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-13 22:54:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-13 22:54:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-13 22:54:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-13 22:54:11,896 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-13 22:54:11,896 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_back [2022-07-13 22:54:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_back [2022-07-13 22:54:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-07-13 22:54:11,897 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-07-13 22:54:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 22:54:11,897 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-07-13 22:54:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-07-13 22:54:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 22:54:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-13 22:54:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-13 22:54:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-13 22:54:11,898 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-13 22:54:11,898 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-13 22:54:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-13 22:54:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-13 22:54:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-07-13 22:54:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-07-13 22:54:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 22:54:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:54:11,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-13 22:54:11,899 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_set_at [2022-07-13 22:54:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_set_at [2022-07-13 22:54:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:54:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-07-13 22:54:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:54:11,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-13 22:54:11,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 22:54:12,264 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 22:54:12,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 22:54:13,340 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 22:54:13,355 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 22:54:13,355 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-13 22:54:13,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:54:13 BoogieIcfgContainer [2022-07-13 22:54:13,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 22:54:13,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 22:54:13,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 22:54:13,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 22:54:13,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 10:54:09" (1/3) ... [2022-07-13 22:54:13,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa39f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:54:13, skipping insertion in model container [2022-07-13 22:54:13,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:11" (2/3) ... [2022-07-13 22:54:13,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa39f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 10:54:13, skipping insertion in model container [2022-07-13 22:54:13,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 10:54:13" (3/3) ... [2022-07-13 22:54:13,366 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_push_harness.i [2022-07-13 22:54:13,377 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 22:54:13,378 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 22:54:13,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 22:54:13,465 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5f69ca35, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@70fab78c [2022-07-13 22:54:13,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 22:54:13,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 315 states have (on average 1.253968253968254) internal successors, (395), 318 states have internal predecessors, (395), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) [2022-07-13 22:54:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-13 22:54:13,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:13,496 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:13,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash 366145985, now seen corresponding path program 1 times [2022-07-13 22:54:13,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:13,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473696478] [2022-07-13 22:54:13,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:13,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:13,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:54:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:54:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:54:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:54:14,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:54:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:54:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:54:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:54:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:54:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 22:54:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 22:54:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 22:54:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 22:54:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 22:54:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-13 22:54:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 22:54:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 22:54:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 22:54:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 22:54:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 22:54:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-13 22:54:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-13 22:54:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-13 22:54:14,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-13 22:54:14,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:14,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473696478] [2022-07-13 22:54:14,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473696478] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:14,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:14,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 22:54:14,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091116208] [2022-07-13 22:54:14,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:14,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 22:54:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:14,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 22:54:14,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:54:14,365 INFO L87 Difference]: Start difference. First operand has 545 states, 315 states have (on average 1.253968253968254) internal successors, (395), 318 states have internal predecessors, (395), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (196), 196 states have call predecessors, (196), 196 states have call successors, (196) Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 22:54:15,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:15,598 INFO L93 Difference]: Finished difference Result 1235 states and 2048 transitions. [2022-07-13 22:54:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:54:15,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2022-07-13 22:54:15,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:15,627 INFO L225 Difference]: With dead ends: 1235 [2022-07-13 22:54:15,627 INFO L226 Difference]: Without dead ends: 696 [2022-07-13 22:54:15,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:54:15,637 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 333 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 580 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:15,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1061 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [580 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 22:54:15,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2022-07-13 22:54:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 538. [2022-07-13 22:54:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 309 states have (on average 1.2362459546925566) internal successors, (382), 311 states have internal predecessors, (382), 196 states have call successors, (196), 32 states have call predecessors, (196), 31 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2022-07-13 22:54:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 772 transitions. [2022-07-13 22:54:15,747 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 772 transitions. Word has length 167 [2022-07-13 22:54:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:15,748 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 772 transitions. [2022-07-13 22:54:15,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (27), 5 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-13 22:54:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 772 transitions. [2022-07-13 22:54:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-13 22:54:15,752 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:15,752 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:15,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 22:54:15,752 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1489247165, now seen corresponding path program 1 times [2022-07-13 22:54:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:15,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952924150] [2022-07-13 22:54:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:15,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:54:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:54:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:15,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:54:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:54:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:54:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:54:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-13 22:54:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-13 22:54:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:54:16,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-13 22:54:16,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-13 22:54:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-13 22:54:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-13 22:54:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-13 22:54:16,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-13 22:54:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-13 22:54:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-13 22:54:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-13 22:54:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-13 22:54:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 22:54:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-13 22:54:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-13 22:54:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-13 22:54:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-13 22:54:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:16,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952924150] [2022-07-13 22:54:16,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952924150] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:54:16,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125548577] [2022-07-13 22:54:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:16,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:16,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:16,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:16,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 22:54:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:16,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 22:54:16,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-13 22:54:16,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:16,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125548577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:16,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:54:16,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-07-13 22:54:16,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147016562] [2022-07-13 22:54:16,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:16,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:54:16,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:16,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:54:16,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:54:16,908 INFO L87 Difference]: Start difference. First operand 538 states and 772 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-13 22:54:17,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:17,279 INFO L93 Difference]: Finished difference Result 1045 states and 1512 transitions. [2022-07-13 22:54:17,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:54:17,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 167 [2022-07-13 22:54:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:17,284 INFO L225 Difference]: With dead ends: 1045 [2022-07-13 22:54:17,285 INFO L226 Difference]: Without dead ends: 540 [2022-07-13 22:54:17,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:54:17,288 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 798 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:17,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 2699 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:54:17,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-07-13 22:54:17,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2022-07-13 22:54:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 310 states have (on average 1.235483870967742) internal successors, (383), 313 states have internal predecessors, (383), 196 states have call successors, (196), 32 states have call predecessors, (196), 32 states have return successors, (204), 194 states have call predecessors, (204), 194 states have call successors, (204) [2022-07-13 22:54:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 783 transitions. [2022-07-13 22:54:17,328 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 783 transitions. Word has length 167 [2022-07-13 22:54:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:17,328 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 783 transitions. [2022-07-13 22:54:17,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-13 22:54:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 783 transitions. [2022-07-13 22:54:17,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-13 22:54:17,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:17,331 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:17,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:17,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:17,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:17,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:17,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1823728084, now seen corresponding path program 1 times [2022-07-13 22:54:17,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:17,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447331321] [2022-07-13 22:54:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:17,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:54:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-13 22:54:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 22:54:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 22:54:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-13 22:54:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-13 22:54:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 22:54:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-13 22:54:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 22:54:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-13 22:54:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-13 22:54:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-13 22:54:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-13 22:54:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-13 22:54:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-13 22:54:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-13 22:54:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-13 22:54:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-13 22:54:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-13 22:54:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-13 22:54:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-13 22:54:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-13 22:54:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-13 22:54:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-13 22:54:18,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-13 22:54:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-13 22:54:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2022-07-13 22:54:18,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:18,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447331321] [2022-07-13 22:54:18,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447331321] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 22:54:18,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085306654] [2022-07-13 22:54:18,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:18,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:18,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:18,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:18,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 22:54:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:18,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:54:18,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:18,649 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-13 22:54:18,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:18,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085306654] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:18,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 22:54:18,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2022-07-13 22:54:18,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739759850] [2022-07-13 22:54:18,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:18,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:54:18,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:54:18,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:54:18,653 INFO L87 Difference]: Start difference. First operand 540 states and 783 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:54:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:19,300 INFO L93 Difference]: Finished difference Result 1068 states and 1592 transitions. [2022-07-13 22:54:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:54:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 175 [2022-07-13 22:54:19,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:19,305 INFO L225 Difference]: With dead ends: 1068 [2022-07-13 22:54:19,305 INFO L226 Difference]: Without dead ends: 561 [2022-07-13 22:54:19,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-07-13 22:54:19,308 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 839 mSDsluCounter, 3166 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:19,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 3837 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:54:19,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-07-13 22:54:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 559. [2022-07-13 22:54:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-07-13 22:54:19,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-07-13 22:54:19,347 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 175 [2022-07-13 22:54:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:19,348 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-07-13 22:54:19,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-13 22:54:19,349 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-07-13 22:54:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 22:54:19,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:19,351 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:19,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:19,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 22:54:19,568 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:19,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:19,568 INFO L85 PathProgramCache]: Analyzing trace with hash 448672907, now seen corresponding path program 1 times [2022-07-13 22:54:19,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:19,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233702628] [2022-07-13 22:54:19,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:19,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:19,632 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:19,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918658040] [2022-07-13 22:54:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:19,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:19,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:19,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 22:54:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:20,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 2629 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:54:20,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-13 22:54:20,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:20,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:20,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233702628] [2022-07-13 22:54:20,178 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:20,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918658040] [2022-07-13 22:54:20,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918658040] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:20,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:20,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:54:20,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674919580] [2022-07-13 22:54:20,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:20,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:54:20,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:20,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:54:20,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:54:20,180 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-13 22:54:20,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:20,662 INFO L93 Difference]: Finished difference Result 1093 states and 1674 transitions. [2022-07-13 22:54:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:54:20,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 190 [2022-07-13 22:54:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:20,668 INFO L225 Difference]: With dead ends: 1093 [2022-07-13 22:54:20,668 INFO L226 Difference]: Without dead ends: 567 [2022-07-13 22:54:20,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-07-13 22:54:20,671 INFO L413 NwaCegarLoop]: 697 mSDtfsCounter, 822 mSDsluCounter, 2644 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:20,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 3341 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 22:54:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-07-13 22:54:20,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 559. [2022-07-13 22:54:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-07-13 22:54:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-07-13 22:54:20,705 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 190 [2022-07-13 22:54:20,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:20,705 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-07-13 22:54:20,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2022-07-13 22:54:20,706 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-07-13 22:54:20,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-13 22:54:20,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:20,708 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:20,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:20,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:20,932 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:20,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash 478941137, now seen corresponding path program 1 times [2022-07-13 22:54:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:20,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552263977] [2022-07-13 22:54:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:20,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:21,021 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:21,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1345471977] [2022-07-13 22:54:21,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:21,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:21,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:21,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:21,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 22:54:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:21,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 2701 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:54:21,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-13 22:54:21,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:21,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552263977] [2022-07-13 22:54:21,608 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345471977] [2022-07-13 22:54:21,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345471977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:21,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:21,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:54:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013447657] [2022-07-13 22:54:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:21,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:54:21,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:54:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:54:21,610 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-07-13 22:54:22,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:22,392 INFO L93 Difference]: Finished difference Result 1103 states and 1681 transitions. [2022-07-13 22:54:22,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:54:22,393 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) Word has length 206 [2022-07-13 22:54:22,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:22,397 INFO L225 Difference]: With dead ends: 1103 [2022-07-13 22:54:22,397 INFO L226 Difference]: Without dead ends: 577 [2022-07-13 22:54:22,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-13 22:54:22,401 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 872 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 4428 SdHoareTripleChecker+Invalid, 1015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:22,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [932 Valid, 4428 Invalid, 1015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 22:54:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-07-13 22:54:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 559. [2022-07-13 22:54:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 198 states have call successors, (198), 32 states have call predecessors, (198), 33 states have return successors, (238), 197 states have call predecessors, (238), 196 states have call successors, (238) [2022-07-13 22:54:22,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 841 transitions. [2022-07-13 22:54:22,429 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 841 transitions. Word has length 206 [2022-07-13 22:54:22,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:22,429 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 841 transitions. [2022-07-13 22:54:22,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 5 states have call predecessors, (29), 5 states have call successors, (29) [2022-07-13 22:54:22,430 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 841 transitions. [2022-07-13 22:54:22,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-13 22:54:22,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:22,432 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:22,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:22,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:22,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:22,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:22,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1017677968, now seen corresponding path program 2 times [2022-07-13 22:54:22,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:22,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917005474] [2022-07-13 22:54:22,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:22,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:22,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:22,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073784575] [2022-07-13 22:54:22,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:54:22,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:22,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:22,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:22,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 22:54:23,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:54:23,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:23,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2842 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-13 22:54:23,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:23,341 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-07-13 22:54:23,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:23,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:23,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917005474] [2022-07-13 22:54:23,342 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:23,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073784575] [2022-07-13 22:54:23,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073784575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:23,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:23,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 22:54:23,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119515956] [2022-07-13 22:54:23,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:23,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 22:54:23,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:23,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 22:54:23,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:54:23,344 INFO L87 Difference]: Start difference. First operand 559 states and 841 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-13 22:54:23,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:23,688 INFO L93 Difference]: Finished difference Result 1079 states and 1634 transitions. [2022-07-13 22:54:23,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:54:23,689 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 221 [2022-07-13 22:54:23,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:23,693 INFO L225 Difference]: With dead ends: 1079 [2022-07-13 22:54:23,693 INFO L226 Difference]: Without dead ends: 561 [2022-07-13 22:54:23,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:54:23,697 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 850 mSDsluCounter, 2636 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 3338 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:23,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 3338 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:54:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-07-13 22:54:23,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2022-07-13 22:54:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 327 states have (on average 1.2415902140672783) internal successors, (406), 331 states have internal predecessors, (406), 198 states have call successors, (198), 32 states have call predecessors, (198), 34 states have return successors, (246), 197 states have call predecessors, (246), 196 states have call successors, (246) [2022-07-13 22:54:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 850 transitions. [2022-07-13 22:54:23,724 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 850 transitions. Word has length 221 [2022-07-13 22:54:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:23,725 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 850 transitions. [2022-07-13 22:54:23,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 4 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-13 22:54:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 850 transitions. [2022-07-13 22:54:23,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-13 22:54:23,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:23,728 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:23,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-13 22:54:23,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:23,943 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:23,944 INFO L85 PathProgramCache]: Analyzing trace with hash -861609497, now seen corresponding path program 1 times [2022-07-13 22:54:23,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:23,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715565306] [2022-07-13 22:54:23,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:23,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:24,004 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:24,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362187841] [2022-07-13 22:54:24,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:24,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:24,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:24,006 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:24,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 22:54:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:24,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 2892 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:54:24,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:24,641 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-07-13 22:54:24,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:24,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:24,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715565306] [2022-07-13 22:54:24,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:24,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362187841] [2022-07-13 22:54:24,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362187841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:24,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:24,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:54:24,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723610016] [2022-07-13 22:54:24,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:24,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:54:24,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:24,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:54:24,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:54:24,645 INFO L87 Difference]: Start difference. First operand 561 states and 850 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 22:54:25,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:25,276 INFO L93 Difference]: Finished difference Result 1097 states and 1672 transitions. [2022-07-13 22:54:25,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:54:25,277 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2022-07-13 22:54:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:25,281 INFO L225 Difference]: With dead ends: 1097 [2022-07-13 22:54:25,282 INFO L226 Difference]: Without dead ends: 577 [2022-07-13 22:54:25,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-07-13 22:54:25,285 INFO L413 NwaCegarLoop]: 670 mSDtfsCounter, 891 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:25,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 4438 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:54:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-07-13 22:54:25,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2022-07-13 22:54:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2022-07-13 22:54:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2022-07-13 22:54:25,315 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 229 [2022-07-13 22:54:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:25,316 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2022-07-13 22:54:25,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 5 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 22:54:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2022-07-13 22:54:25,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-13 22:54:25,319 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:25,319 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:25,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:25,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:25,539 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:25,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:25,540 INFO L85 PathProgramCache]: Analyzing trace with hash 994439586, now seen corresponding path program 2 times [2022-07-13 22:54:25,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:25,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668865727] [2022-07-13 22:54:25,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:25,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:25,608 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:25,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783536714] [2022-07-13 22:54:25,609 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:54:25,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:25,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:25,610 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:25,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 22:54:26,504 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:54:26,504 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:26,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:54:26,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:26,602 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2022-07-13 22:54:26,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:26,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:26,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668865727] [2022-07-13 22:54:26,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:26,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783536714] [2022-07-13 22:54:26,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783536714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:26,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:26,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:54:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635296068] [2022-07-13 22:54:26,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:26,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:54:26,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:54:26,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:54:26,605 INFO L87 Difference]: Start difference. First operand 575 states and 870 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 22:54:27,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:27,054 INFO L93 Difference]: Finished difference Result 1117 states and 1712 transitions. [2022-07-13 22:54:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:54:27,054 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) Word has length 244 [2022-07-13 22:54:27,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:27,059 INFO L225 Difference]: With dead ends: 1117 [2022-07-13 22:54:27,059 INFO L226 Difference]: Without dead ends: 583 [2022-07-13 22:54:27,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:54:27,062 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 874 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:27,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3971 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 22:54:27,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-07-13 22:54:27,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 575. [2022-07-13 22:54:27,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (247), 199 states have call predecessors, (247), 197 states have call successors, (247) [2022-07-13 22:54:27,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 870 transitions. [2022-07-13 22:54:27,090 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 870 transitions. Word has length 244 [2022-07-13 22:54:27,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:27,091 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 870 transitions. [2022-07-13 22:54:27,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 8 states have internal predecessors, (93), 5 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 5 states have call successors, (30) [2022-07-13 22:54:27,091 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 870 transitions. [2022-07-13 22:54:27,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-07-13 22:54:27,094 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:27,094 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:27,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:27,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:27,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:27,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:27,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1506363748, now seen corresponding path program 3 times [2022-07-13 22:54:27,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:27,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855627789] [2022-07-13 22:54:27,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:27,369 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:27,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103102186] [2022-07-13 22:54:27,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 22:54:27,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:27,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:27,371 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:27,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 22:54:28,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 22:54:28,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:28,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-13 22:54:28,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:28,060 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-13 22:54:28,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:28,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:28,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855627789] [2022-07-13 22:54:28,060 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:28,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103102186] [2022-07-13 22:54:28,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103102186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:28,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:28,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:54:28,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602332846] [2022-07-13 22:54:28,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:28,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:54:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:28,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:54:28,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:54:28,063 INFO L87 Difference]: Start difference. First operand 575 states and 870 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-13 22:54:28,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:28,400 INFO L93 Difference]: Finished difference Result 1092 states and 1666 transitions. [2022-07-13 22:54:28,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 22:54:28,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 260 [2022-07-13 22:54:28,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:28,406 INFO L225 Difference]: With dead ends: 1092 [2022-07-13 22:54:28,407 INFO L226 Difference]: Without dead ends: 575 [2022-07-13 22:54:28,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 22:54:28,412 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 2 mSDsluCounter, 2780 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:28,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3507 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:54:28,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2022-07-13 22:54:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2022-07-13 22:54:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 340 states have (on average 1.2470588235294118) internal successors, (424), 343 states have internal predecessors, (424), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (246), 199 states have call predecessors, (246), 197 states have call successors, (246) [2022-07-13 22:54:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 869 transitions. [2022-07-13 22:54:28,445 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 869 transitions. Word has length 260 [2022-07-13 22:54:28,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:28,448 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 869 transitions. [2022-07-13 22:54:28,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-13 22:54:28,448 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 869 transitions. [2022-07-13 22:54:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-13 22:54:28,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:28,450 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:28,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:28,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-13 22:54:28,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:28,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1557399056, now seen corresponding path program 4 times [2022-07-13 22:54:28,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:28,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146680479] [2022-07-13 22:54:28,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:28,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:28,735 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:28,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311755377] [2022-07-13 22:54:28,735 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 22:54:28,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:28,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:28,737 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:28,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 22:54:29,080 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 22:54:29,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:29,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-13 22:54:29,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-13 22:54:29,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:29,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146680479] [2022-07-13 22:54:29,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:29,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311755377] [2022-07-13 22:54:29,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311755377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:29,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:29,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-13 22:54:29,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175861661] [2022-07-13 22:54:29,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:29,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:54:29,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:29,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:54:29,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:54:29,147 INFO L87 Difference]: Start difference. First operand 575 states and 869 transitions. Second operand has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-13 22:54:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:29,676 INFO L93 Difference]: Finished difference Result 1236 states and 1887 transitions. [2022-07-13 22:54:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-13 22:54:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 290 [2022-07-13 22:54:29,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:29,681 INFO L225 Difference]: With dead ends: 1236 [2022-07-13 22:54:29,681 INFO L226 Difference]: Without dead ends: 714 [2022-07-13 22:54:29,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:54:29,685 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 158 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 5333 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:29,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 5333 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 22:54:29,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2022-07-13 22:54:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 672. [2022-07-13 22:54:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 406 states have (on average 1.270935960591133) internal successors, (516), 411 states have internal predecessors, (516), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2022-07-13 22:54:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1033 transitions. [2022-07-13 22:54:29,717 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1033 transitions. Word has length 290 [2022-07-13 22:54:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:29,718 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 1033 transitions. [2022-07-13 22:54:29,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.571428571428571) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-13 22:54:29,718 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1033 transitions. [2022-07-13 22:54:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-13 22:54:29,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:29,721 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:29,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:29,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-13 22:54:29,940 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:29,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash 983595122, now seen corresponding path program 5 times [2022-07-13 22:54:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:29,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430297764] [2022-07-13 22:54:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:30,008 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:30,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673812729] [2022-07-13 22:54:30,008 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 22:54:30,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:30,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:30,010 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:30,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 22:54:30,527 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:54:30,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:30,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 22:54:30,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:30,660 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2022-07-13 22:54:30,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:30,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430297764] [2022-07-13 22:54:30,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:30,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673812729] [2022-07-13 22:54:30,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673812729] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:30,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:30,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 22:54:30,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064479012] [2022-07-13 22:54:30,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:30,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 22:54:30,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:30,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 22:54:30,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 22:54:30,664 INFO L87 Difference]: Start difference. First operand 672 states and 1033 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:54:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:31,053 INFO L93 Difference]: Finished difference Result 1401 states and 2211 transitions. [2022-07-13 22:54:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 22:54:31,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 290 [2022-07-13 22:54:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:31,059 INFO L225 Difference]: With dead ends: 1401 [2022-07-13 22:54:31,059 INFO L226 Difference]: Without dead ends: 762 [2022-07-13 22:54:31,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:54:31,064 INFO L413 NwaCegarLoop]: 776 mSDtfsCounter, 21 mSDsluCounter, 2871 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3647 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:31,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3647 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:54:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2022-07-13 22:54:31,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 690. [2022-07-13 22:54:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 424 states have (on average 1.2712264150943395) internal successors, (539), 429 states have internal predecessors, (539), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2022-07-13 22:54:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1056 transitions. [2022-07-13 22:54:31,101 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1056 transitions. Word has length 290 [2022-07-13 22:54:31,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:31,101 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 1056 transitions. [2022-07-13 22:54:31,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:54:31,102 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1056 transitions. [2022-07-13 22:54:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-07-13 22:54:31,104 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:31,104 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:31,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:31,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 22:54:31,319 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:31,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:31,320 INFO L85 PathProgramCache]: Analyzing trace with hash -746406538, now seen corresponding path program 1 times [2022-07-13 22:54:31,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:31,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113569002] [2022-07-13 22:54:31,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:31,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:31,383 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:31,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116898671] [2022-07-13 22:54:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:31,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:31,385 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:31,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 22:54:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:31,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 3381 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 22:54:31,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-13 22:54:32,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:32,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:32,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113569002] [2022-07-13 22:54:32,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:32,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116898671] [2022-07-13 22:54:32,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116898671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:32,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:32,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 22:54:32,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760959633] [2022-07-13 22:54:32,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:32,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 22:54:32,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 22:54:32,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 22:54:32,007 INFO L87 Difference]: Start difference. First operand 690 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:54:32,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:32,072 INFO L93 Difference]: Finished difference Result 1367 states and 2131 transitions. [2022-07-13 22:54:32,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 22:54:32,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 290 [2022-07-13 22:54:32,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:32,078 INFO L225 Difference]: With dead ends: 1367 [2022-07-13 22:54:32,078 INFO L226 Difference]: Without dead ends: 710 [2022-07-13 22:54:32,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 22:54:32,083 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 3 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2302 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:32,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2302 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 22:54:32,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-13 22:54:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 700. [2022-07-13 22:54:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 434 states have (on average 1.2649769585253456) internal successors, (549), 439 states have internal predecessors, (549), 228 states have call successors, (228), 33 states have call predecessors, (228), 36 states have return successors, (289), 227 states have call predecessors, (289), 226 states have call successors, (289) [2022-07-13 22:54:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1066 transitions. [2022-07-13 22:54:32,123 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1066 transitions. Word has length 290 [2022-07-13 22:54:32,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:32,123 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1066 transitions. [2022-07-13 22:54:32,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-13 22:54:32,124 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1066 transitions. [2022-07-13 22:54:32,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-07-13 22:54:32,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:32,126 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:32,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:32,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 22:54:32,350 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:32,350 INFO L85 PathProgramCache]: Analyzing trace with hash -873088841, now seen corresponding path program 1 times [2022-07-13 22:54:32,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:32,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834046725] [2022-07-13 22:54:32,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:32,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:32,411 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:32,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045389382] [2022-07-13 22:54:32,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:32,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:32,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:32,414 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:32,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 22:54:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:32,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:54:32,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 358 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-07-13 22:54:33,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:33,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:33,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834046725] [2022-07-13 22:54:33,113 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:33,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045389382] [2022-07-13 22:54:33,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045389382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:33,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:33,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:54:33,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003640372] [2022-07-13 22:54:33,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:33,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:54:33,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:54:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:54:33,115 INFO L87 Difference]: Start difference. First operand 700 states and 1066 transitions. Second operand has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2022-07-13 22:54:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:33,919 INFO L93 Difference]: Finished difference Result 1383 states and 2108 transitions. [2022-07-13 22:54:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:54:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) Word has length 298 [2022-07-13 22:54:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:33,925 INFO L225 Difference]: With dead ends: 1383 [2022-07-13 22:54:33,925 INFO L226 Difference]: Without dead ends: 724 [2022-07-13 22:54:33,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-07-13 22:54:33,930 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 924 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:33,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 5019 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 22:54:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2022-07-13 22:54:33,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 657. [2022-07-13 22:54:34,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 395 states have (on average 1.2582278481012659) internal successors, (497), 401 states have internal predecessors, (497), 225 states have call successors, (225), 33 states have call predecessors, (225), 35 states have return successors, (275), 222 states have call predecessors, (275), 223 states have call successors, (275) [2022-07-13 22:54:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 997 transitions. [2022-07-13 22:54:34,004 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 997 transitions. Word has length 298 [2022-07-13 22:54:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:34,005 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 997 transitions. [2022-07-13 22:54:34,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.555555555555555) internal successors, (122), 10 states have internal predecessors, (122), 6 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (34), 5 states have call predecessors, (34), 6 states have call successors, (34) [2022-07-13 22:54:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 997 transitions. [2022-07-13 22:54:34,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-07-13 22:54:34,007 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:34,007 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:34,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:34,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 22:54:34,223 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:34,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:34,224 INFO L85 PathProgramCache]: Analyzing trace with hash 555293049, now seen corresponding path program 2 times [2022-07-13 22:54:34,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:34,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106902495] [2022-07-13 22:54:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:34,308 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:34,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903946854] [2022-07-13 22:54:34,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:54:34,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:34,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:34,310 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:34,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 22:54:35,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:54:35,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:35,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 22:54:35,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:35,372 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-07-13 22:54:35,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:35,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:35,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106902495] [2022-07-13 22:54:35,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:35,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903946854] [2022-07-13 22:54:35,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903946854] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:35,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:35,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 22:54:35,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702437042] [2022-07-13 22:54:35,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:35,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 22:54:35,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:35,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 22:54:35,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:54:35,375 INFO L87 Difference]: Start difference. First operand 657 states and 997 transitions. Second operand has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-13 22:54:36,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:36,081 INFO L93 Difference]: Finished difference Result 1205 states and 1824 transitions. [2022-07-13 22:54:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 22:54:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 298 [2022-07-13 22:54:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:36,088 INFO L225 Difference]: With dead ends: 1205 [2022-07-13 22:54:36,088 INFO L226 Difference]: Without dead ends: 595 [2022-07-13 22:54:36,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-07-13 22:54:36,092 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 942 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 4947 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:36,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 4947 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 22:54:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-07-13 22:54:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 593. [2022-07-13 22:54:36,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 358 states have (on average 1.2430167597765363) internal successors, (445), 361 states have internal predecessors, (445), 199 states have call successors, (199), 32 states have call predecessors, (199), 34 states have return successors, (240), 199 states have call predecessors, (240), 197 states have call successors, (240) [2022-07-13 22:54:36,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 884 transitions. [2022-07-13 22:54:36,122 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 884 transitions. Word has length 298 [2022-07-13 22:54:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:36,123 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 884 transitions. [2022-07-13 22:54:36,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.666666666666666) internal successors, (105), 10 states have internal predecessors, (105), 6 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-13 22:54:36,123 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 884 transitions. [2022-07-13 22:54:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2022-07-13 22:54:36,125 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:36,126 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:36,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:36,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-13 22:54:36,339 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:36,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:36,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2045623242, now seen corresponding path program 3 times [2022-07-13 22:54:36,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:36,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351449069] [2022-07-13 22:54:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:36,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:36,438 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:36,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932068246] [2022-07-13 22:54:36,439 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 22:54:36,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:36,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:36,444 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:36,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 22:54:36,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 22:54:36,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:36,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 2030 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-13 22:54:36,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2022-07-13 22:54:37,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 22:54:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-07-13 22:54:37,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:37,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351449069] [2022-07-13 22:54:37,398 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:37,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932068246] [2022-07-13 22:54:37,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932068246] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 22:54:37,398 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 22:54:37,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2022-07-13 22:54:37,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138082608] [2022-07-13 22:54:37,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 22:54:37,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 22:54:37,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:37,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 22:54:37,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-13 22:54:37,400 INFO L87 Difference]: Start difference. First operand 593 states and 884 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-13 22:54:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:37,720 INFO L93 Difference]: Finished difference Result 1129 states and 1697 transitions. [2022-07-13 22:54:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 22:54:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) Word has length 313 [2022-07-13 22:54:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:37,726 INFO L225 Difference]: With dead ends: 1129 [2022-07-13 22:54:37,726 INFO L226 Difference]: Without dead ends: 595 [2022-07-13 22:54:37,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-07-13 22:54:37,731 INFO L413 NwaCegarLoop]: 734 mSDtfsCounter, 45 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:37,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3549 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 22:54:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-07-13 22:54:37,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2022-07-13 22:54:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 360 states have (on average 1.2416666666666667) internal successors, (447), 362 states have internal predecessors, (447), 199 states have call successors, (199), 33 states have call predecessors, (199), 34 states have return successors, (239), 199 states have call predecessors, (239), 197 states have call successors, (239) [2022-07-13 22:54:37,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 885 transitions. [2022-07-13 22:54:37,757 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 885 transitions. Word has length 313 [2022-07-13 22:54:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:37,758 INFO L495 AbstractCegarLoop]: Abstraction has 595 states and 885 transitions. [2022-07-13 22:54:37,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (30), 4 states have call predecessors, (30), 3 states have call successors, (30) [2022-07-13 22:54:37,758 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 885 transitions. [2022-07-13 22:54:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-07-13 22:54:37,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:37,760 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:37,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:37,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:37,987 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:37,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:37,988 INFO L85 PathProgramCache]: Analyzing trace with hash 501085837, now seen corresponding path program 4 times [2022-07-13 22:54:37,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:37,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635542603] [2022-07-13 22:54:37,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:37,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:38,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:38,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1250932290] [2022-07-13 22:54:38,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 22:54:38,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:38,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:38,061 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:38,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 22:54:38,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 22:54:38,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:38,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 22:54:38,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2022-07-13 22:54:38,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:38,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:38,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635542603] [2022-07-13 22:54:38,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:38,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250932290] [2022-07-13 22:54:38,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250932290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:38,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:38,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-13 22:54:38,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770348740] [2022-07-13 22:54:38,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:38,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 22:54:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:38,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 22:54:38,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-13 22:54:38,536 INFO L87 Difference]: Start difference. First operand 595 states and 885 transitions. Second operand has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-07-13 22:54:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:39,242 INFO L93 Difference]: Finished difference Result 1296 states and 1946 transitions. [2022-07-13 22:54:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 22:54:39,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) Word has length 328 [2022-07-13 22:54:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:39,248 INFO L225 Difference]: With dead ends: 1296 [2022-07-13 22:54:39,248 INFO L226 Difference]: Without dead ends: 732 [2022-07-13 22:54:39,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-13 22:54:39,252 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 179 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 5975 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:39,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 5975 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 22:54:39,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2022-07-13 22:54:39,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 701. [2022-07-13 22:54:39,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 436 states have (on average 1.261467889908257) internal successors, (550), 440 states have internal predecessors, (550), 227 states have call successors, (227), 34 states have call predecessors, (227), 36 states have return successors, (279), 226 states have call predecessors, (279), 225 states have call successors, (279) [2022-07-13 22:54:39,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1056 transitions. [2022-07-13 22:54:39,286 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1056 transitions. Word has length 328 [2022-07-13 22:54:39,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:39,286 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 1056 transitions. [2022-07-13 22:54:39,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.0) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (32), 4 states have call predecessors, (32), 5 states have call successors, (32) [2022-07-13 22:54:39,286 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1056 transitions. [2022-07-13 22:54:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2022-07-13 22:54:39,289 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:39,289 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:39,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:39,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 22:54:39,508 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:39,509 INFO L85 PathProgramCache]: Analyzing trace with hash -593591285, now seen corresponding path program 1 times [2022-07-13 22:54:39,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:39,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482147891] [2022-07-13 22:54:39,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:39,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:39,572 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:39,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165648222] [2022-07-13 22:54:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:39,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:39,575 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:39,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 22:54:40,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 22:54:40,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 3767 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-13 22:54:40,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:40,409 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2022-07-13 22:54:40,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 22:54:40,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:40,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482147891] [2022-07-13 22:54:40,409 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:40,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165648222] [2022-07-13 22:54:40,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165648222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 22:54:40,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 22:54:40,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 22:54:40,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481208682] [2022-07-13 22:54:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 22:54:40,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 22:54:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 22:54:40,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 22:54:40,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-13 22:54:40,412 INFO L87 Difference]: Start difference. First operand 701 states and 1056 transitions. Second operand has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-07-13 22:54:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 22:54:41,284 INFO L93 Difference]: Finished difference Result 1254 states and 1886 transitions. [2022-07-13 22:54:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 22:54:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) Word has length 344 [2022-07-13 22:54:41,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 22:54:41,289 INFO L225 Difference]: With dead ends: 1254 [2022-07-13 22:54:41,289 INFO L226 Difference]: Without dead ends: 600 [2022-07-13 22:54:41,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2022-07-13 22:54:41,293 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 973 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 5512 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 22:54:41,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 5512 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 22:54:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-07-13 22:54:41,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 573. [2022-07-13 22:54:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 340 states have (on average 1.238235294117647) internal successors, (421), 342 states have internal predecessors, (421), 198 states have call successors, (198), 33 states have call predecessors, (198), 33 states have return successors, (230), 197 states have call predecessors, (230), 196 states have call successors, (230) [2022-07-13 22:54:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 849 transitions. [2022-07-13 22:54:41,321 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 849 transitions. Word has length 344 [2022-07-13 22:54:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 22:54:41,321 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 849 transitions. [2022-07-13 22:54:41,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.6) internal successors, (116), 11 states have internal predecessors, (116), 7 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (33), 6 states have call predecessors, (33), 7 states have call successors, (33) [2022-07-13 22:54:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 849 transitions. [2022-07-13 22:54:41,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-07-13 22:54:41,324 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 22:54:41,325 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 22:54:41,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:41,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 22:54:41,535 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 22:54:41,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 22:54:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1351536022, now seen corresponding path program 2 times [2022-07-13 22:54:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 22:54:41,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035792508] [2022-07-13 22:54:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 22:54:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 22:54:41,604 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 22:54:41,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605161011] [2022-07-13 22:54:41,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 22:54:41,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 22:54:41,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 22:54:41,606 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 22:54:41,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 22:54:42,818 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 22:54:42,818 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 22:54:42,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 3908 conjuncts, 121 conjunts are in the unsatisfiable core [2022-07-13 22:54:42,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 22:54:42,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-13 22:54:42,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 19 [2022-07-13 22:54:42,962 INFO L356 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2022-07-13 22:54:42,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 73 treesize of output 25 [2022-07-13 22:54:43,273 INFO L356 Elim1Store]: treesize reduction 124, result has 50.2 percent of original size [2022-07-13 22:54:43,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 32 select indices, 32 select index equivalence classes, 465 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 31 case distinctions, treesize of input 161 treesize of output 221 [2022-07-13 22:54:44,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 22:54:44,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035792508] [2022-07-13 22:54:44,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 22:54:44,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605161011] [2022-07-13 22:54:44,904 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-07-13 22:54:44,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 22:54:45,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 22:54:45,128 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:682) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:552) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryExhaustivelyToEliminate(DualJunctionTir.java:141) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:128) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:764) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:725) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:643) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:335) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:176) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:265) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:251) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) [2022-07-13 22:54:45,132 INFO L158 Benchmark]: Toolchain (without parser) took 35371.48ms. Allocated memory was 144.7MB in the beginning and 497.0MB in the end (delta: 352.3MB). Free memory was 104.5MB in the beginning and 161.9MB in the end (delta: -57.4MB). Peak memory consumption was 293.5MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1740.30ms. Allocated memory is still 144.7MB. Free memory was 104.1MB in the beginning and 85.6MB in the end (delta: 18.5MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 171.62ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 73.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: Boogie Preprocessor took 122.94ms. Allocated memory is still 144.7MB. Free memory was 73.6MB in the beginning and 63.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: RCFGBuilder took 1559.66ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 63.9MB in the beginning and 106.1MB in the end (delta: -42.2MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,133 INFO L158 Benchmark]: TraceAbstraction took 31771.43ms. Allocated memory was 207.6MB in the beginning and 497.0MB in the end (delta: 289.4MB). Free memory was 106.1MB in the beginning and 161.9MB in the end (delta: -55.8MB). Peak memory consumption was 232.9MB. Max. memory is 16.1GB. [2022-07-13 22:54:45,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory is still 43.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1740.30ms. Allocated memory is still 144.7MB. Free memory was 104.1MB in the beginning and 85.6MB in the end (delta: 18.5MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 171.62ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 73.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 122.94ms. Allocated memory is still 144.7MB. Free memory was 73.6MB in the beginning and 63.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1559.66ms. Allocated memory was 144.7MB in the beginning and 207.6MB in the end (delta: 62.9MB). Free memory was 63.9MB in the beginning and 106.1MB in the end (delta: -42.2MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. * TraceAbstraction took 31771.43ms. Allocated memory was 207.6MB in the beginning and 497.0MB in the end (delta: 289.4MB). Free memory was 106.1MB in the beginning and 161.9MB in the end (delta: -55.8MB). Peak memory consumption was 232.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:682) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-13 22:54:45,150 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 0 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_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 d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 22:54:46,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 22:54:46,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 22:54:47,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 22:54:47,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 22:54:47,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 22:54:47,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 22:54:47,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 22:54:47,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 22:54:47,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 22:54:47,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 22:54:47,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 22:54:47,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 22:54:47,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 22:54:47,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 22:54:47,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 22:54:47,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 22:54:47,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 22:54:47,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 22:54:47,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 22:54:47,079 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 22:54:47,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 22:54:47,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 22:54:47,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 22:54:47,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 22:54:47,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 22:54:47,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 22:54:47,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 22:54:47,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 22:54:47,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 22:54:47,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 22:54:47,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 22:54:47,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 22:54:47,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 22:54:47,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 22:54:47,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 22:54:47,097 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 22:54:47,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 22:54:47,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 22:54:47,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 22:54:47,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 22:54:47,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 22:54:47,104 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-13 22:54:47,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 22:54:47,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 22:54:47,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 22:54:47,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 22:54:47,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 22:54:47,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 22:54:47,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 22:54:47,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 22:54:47,137 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 22:54:47,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 22:54:47,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 22:54:47,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 22:54:47,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 22:54:47,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 22:54:47,139 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 22:54:47,139 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 22:54:47,139 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 22:54:47,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 22:54:47,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 22:54:47,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 22:54:47,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 22:54:47,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 22:54:47,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 22:54:47,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 22:54:47,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 22:54:47,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 22:54:47,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 22:54:47,141 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 22:54:47,141 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 22:54:47,141 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 22:54:47,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 22:54:47,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 22:54:47,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 22:54:47,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b9169d0d63d8238da177db4999afabb0efa6e97e1e7cd257e8474f76788f17 [2022-07-13 22:54:47,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 22:54:47,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 22:54:47,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 22:54:47,493 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 22:54:47,494 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 22:54:47,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-07-13 22:54:47,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ea549e3/e7abbae562994732a4ca5c04be8524eb/FLAGfdba603e8 [2022-07-13 22:54:48,218 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 22:54:48,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i [2022-07-13 22:54:48,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ea549e3/e7abbae562994732a4ca5c04be8524eb/FLAGfdba603e8 [2022-07-13 22:54:48,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ea549e3/e7abbae562994732a4ca5c04be8524eb [2022-07-13 22:54:48,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 22:54:48,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 22:54:48,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 22:54:48,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 22:54:48,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 22:54:48,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:48" (1/1) ... [2022-07-13 22:54:48,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e34b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 10:54:48, skipping insertion in model container [2022-07-13 22:54:48,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 10:54:48" (1/1) ... [2022-07-13 22:54:48,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 22:54:48,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 22:54:48,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4497,4510] [2022-07-13 22:54:48,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_push_harness.i[4557,4570] [2022-07-13 22:54:49,518 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,518 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,519 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,520 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,520 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,534 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,534 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,535 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,536 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,537 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,538 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,538 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,538 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-13 22:54:49,810 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-13 22:54:49,812 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-13 22:54:49,815 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-13 22:54:49,816 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-13 22:54:49,818 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-13 22:54:49,819 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-13 22:54:49,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-13 22:54:49,820 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-13 22:54:49,829 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-13 22:54:49,832 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-13 22:54:49,987 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-13 22:54:50,009 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.ArithmeticException: BigInteger out of int range at java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1009) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:968) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:249) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:2978) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2836) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2138) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-13 22:54:50,019 INFO L158 Benchmark]: Toolchain (without parser) took 1484.77ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 62.7MB in the end (delta: -25.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-07-13 22:54:50,020 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 22:54:50,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1481.61ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.4MB in the beginning and 62.7MB in the end (delta: -26.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-07-13 22:54:50,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 46.8MB in the beginning and 46.8MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1481.61ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.4MB in the beginning and 62.7MB in the end (delta: -26.2MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: ArithmeticException: BigInteger out of int range: java.base/java.math.BigInteger.intValueExact(BigInteger.java:4784) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArithmeticException: BigInteger out of int range