./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:38:21,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:38:21,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:38:21,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:38:21,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:38:21,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:38:21,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:38:21,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:38:21,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:38:21,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:38:21,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:38:21,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:38:21,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:38:21,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:38:21,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:38:21,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:38:21,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:38:21,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:38:21,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:38:21,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:38:21,705 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:38:21,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:38:21,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:38:21,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:38:21,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:38:21,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:38:21,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:38:21,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:38:21,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:38:21,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:38:21,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:38:21,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:38:21,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:38:21,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:38:21,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:38:21,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:38:21,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:38:21,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:38:21,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:38:21,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:38:21,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:38:21,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:38:21,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:38:21,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:38:21,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:38:21,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:38:21,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:38:21,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:38:21,770 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:38:21,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:38:21,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:38:21,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:38:21,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:38:21,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:38:21,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:38:21,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:38:21,772 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:38:21,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:38:21,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:38:21,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:38:21,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:38:21,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:38:21,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:38:21,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:38:21,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:38:21,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:38:21,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:38:21,774 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:38:21,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:38:21,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:38:21,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:38:21,775 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-06 11:38:22,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:38:22,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:38:22,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:38:22,049 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:38:22,051 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:38:22,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:38:22,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f43fa1f/51d2fbafc9824ad986e443c4efdd1074/FLAG80bba8ace [2021-11-06 11:38:22,908 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:38:22,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:38:22,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f43fa1f/51d2fbafc9824ad986e443c4efdd1074/FLAG80bba8ace [2021-11-06 11:38:23,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5f43fa1f/51d2fbafc9824ad986e443c4efdd1074 [2021-11-06 11:38:23,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:38:23,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:38:23,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:38:23,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:38:23,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:38:23,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:38:23" (1/1) ... [2021-11-06 11:38:23,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48169a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:23, skipping insertion in model container [2021-11-06 11:38:23,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:38:23" (1/1) ... [2021-11-06 11:38:23,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:38:23,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:38:23,421 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-06 11:38:23,430 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-06 11:38:23,459 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:38:23,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:38:24,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,482 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,483 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,484 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,505 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,513 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,514 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:24,942 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:38:24,948 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:38:24,951 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:38:24,952 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:38:24,953 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:38:24,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:38:24,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:38:24,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:38:24,955 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:38:24,956 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:38:25,106 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:38:25,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,124 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,136 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,199 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,200 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,202 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,204 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,210 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,211 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,219 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:38:25,298 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:38:25,322 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-06 11:38:25,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-06 11:38:25,326 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:38:25,330 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:38:25,384 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,386 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,387 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,396 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,397 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,398 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,399 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,400 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,443 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:38:25,444 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:38:25,445 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:38:25,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:38:25,446 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:38:25,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:38:25,447 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:38:25,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:38:25,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:38:25,448 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:38:25,471 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:38:25,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,512 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,557 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,558 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,560 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,561 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:38:25,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:38:25,735 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:38:25,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25 WrapperNode [2021-11-06 11:38:25,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:38:25,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:38:25,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:38:25,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:38:25,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:25,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:38:26,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:38:26,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:38:26,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:38:26,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:38:26,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:38:26,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:38:26,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:38:26,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (1/1) ... [2021-11-06 11:38:26,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:38:26,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:26,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:38:26,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 11:38:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:38:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:38:26,423 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:38:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:38:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:38:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:38:26,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:38:40,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:38:40,641 INFO L299 CfgBuilder]: Removed 788 assume(true) statements. [2021-11-06 11:38:40,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:38:40 BoogieIcfgContainer [2021-11-06 11:38:40,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:38:40,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:38:40,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:38:40,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:38:40,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:38:23" (1/3) ... [2021-11-06 11:38:40,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:38:40, skipping insertion in model container [2021-11-06 11:38:40,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:38:25" (2/3) ... [2021-11-06 11:38:40,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57bf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:38:40, skipping insertion in model container [2021-11-06 11:38:40,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:38:40" (3/3) ... [2021-11-06 11:38:40,658 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:38:40,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:38:40,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-06 11:38:40,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:38:40,724 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 11:38:40,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-06 11:38:40,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:40,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:38:40,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:40,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:40,770 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:40,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:40,775 INFO L85 PathProgramCache]: Analyzing trace with hash -97697725, now seen corresponding path program 1 times [2021-11-06 11:38:40,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:40,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206803167] [2021-11-06 11:38:40,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:40,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:41,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:41,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206803167] [2021-11-06 11:38:41,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206803167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:41,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:41,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:38:41,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124163918] [2021-11-06 11:38:41,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:38:41,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:38:41,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:38:41,497 INFO L87 Difference]: Start difference. First operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:41,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:41,580 INFO L93 Difference]: Finished difference Result 1982 states and 2759 transitions. [2021-11-06 11:38:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:38:41,581 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:38:41,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:41,603 INFO L225 Difference]: With dead ends: 1982 [2021-11-06 11:38:41,603 INFO L226 Difference]: Without dead ends: 989 [2021-11-06 11:38:41,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:38:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-11-06 11:38:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2021-11-06 11:38:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3246887966804979) internal successors, (1277), 988 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:41,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1277 transitions. [2021-11-06 11:38:41,700 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1277 transitions. Word has length 42 [2021-11-06 11:38:41,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:41,700 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1277 transitions. [2021-11-06 11:38:41,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1277 transitions. [2021-11-06 11:38:41,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:38:41,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:41,704 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:41,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:38:41,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:41,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:41,709 INFO L85 PathProgramCache]: Analyzing trace with hash 268775359, now seen corresponding path program 1 times [2021-11-06 11:38:41,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:41,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127817845] [2021-11-06 11:38:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:41,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:42,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:42,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:42,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127817845] [2021-11-06 11:38:42,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127817845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:42,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:42,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:38:42,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137450329] [2021-11-06 11:38:42,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:38:42,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:42,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:38:42,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:38:42,166 INFO L87 Difference]: Start difference. First operand 989 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:42,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:42,370 INFO L93 Difference]: Finished difference Result 2111 states and 2719 transitions. [2021-11-06 11:38:42,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:38:42,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:38:42,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:42,377 INFO L225 Difference]: With dead ends: 2111 [2021-11-06 11:38:42,377 INFO L226 Difference]: Without dead ends: 1202 [2021-11-06 11:38:42,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:38:42,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-06 11:38:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 989. [2021-11-06 11:38:42,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3215767634854771) internal successors, (1274), 988 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1274 transitions. [2021-11-06 11:38:42,415 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1274 transitions. Word has length 42 [2021-11-06 11:38:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:42,416 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1274 transitions. [2021-11-06 11:38:42,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:42,416 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1274 transitions. [2021-11-06 11:38:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 11:38:42,425 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:42,425 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:42,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 11:38:42,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:42,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 82325853, now seen corresponding path program 1 times [2021-11-06 11:38:42,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:42,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69608072] [2021-11-06 11:38:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:42,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:42,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:42,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69608072] [2021-11-06 11:38:42,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69608072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:42,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:42,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:38:42,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480697593] [2021-11-06 11:38:42,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:38:42,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:38:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:38:42,858 INFO L87 Difference]: Start difference. First operand 989 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:44,717 INFO L93 Difference]: Finished difference Result 2623 states and 3352 transitions. [2021-11-06 11:38:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:38:44,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 11:38:44,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:44,725 INFO L225 Difference]: With dead ends: 2623 [2021-11-06 11:38:44,726 INFO L226 Difference]: Without dead ends: 1682 [2021-11-06 11:38:44,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:38:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2021-11-06 11:38:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 989. [2021-11-06 11:38:44,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3184647302904564) internal successors, (1271), 988 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:44,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2021-11-06 11:38:44,771 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 50 [2021-11-06 11:38:44,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:44,771 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2021-11-06 11:38:44,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:44,773 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2021-11-06 11:38:44,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 11:38:44,775 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:44,775 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:44,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 11:38:44,776 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:44,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:44,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1376076053, now seen corresponding path program 1 times [2021-11-06 11:38:44,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:44,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905485668] [2021-11-06 11:38:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:44,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:44,932 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:38:44,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269459331] [2021-11-06 11:38:44,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:44,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:44,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:44,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:38:44,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 11:38:45,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:45,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 2618 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:38:45,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:38:46,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:46,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:46,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905485668] [2021-11-06 11:38:46,479 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:38:46,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269459331] [2021-11-06 11:38:46,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269459331] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:46,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:46,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:38:46,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086626647] [2021-11-06 11:38:46,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:38:46,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:38:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:38:46,481 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:47,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:47,724 INFO L93 Difference]: Finished difference Result 2802 states and 3579 transitions. [2021-11-06 11:38:47,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 11:38:47,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 11:38:47,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:47,733 INFO L225 Difference]: With dead ends: 2802 [2021-11-06 11:38:47,733 INFO L226 Difference]: Without dead ends: 1892 [2021-11-06 11:38:47,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:38:47,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-11-06 11:38:47,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 989. [2021-11-06 11:38:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3153526970954357) internal successors, (1268), 988 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:47,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1268 transitions. [2021-11-06 11:38:47,786 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1268 transitions. Word has length 66 [2021-11-06 11:38:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:47,788 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1268 transitions. [2021-11-06 11:38:47,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1268 transitions. [2021-11-06 11:38:47,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:38:47,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:47,791 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:47,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 11:38:48,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:48,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:48,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:48,016 INFO L85 PathProgramCache]: Analyzing trace with hash 726765177, now seen corresponding path program 1 times [2021-11-06 11:38:48,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:48,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206672749] [2021-11-06 11:38:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:48,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:48,131 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:38:48,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2066101075] [2021-11-06 11:38:48,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:48,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:48,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:48,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:38:48,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 11:38:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:49,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:38:49,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:38:49,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:49,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:49,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206672749] [2021-11-06 11:38:49,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:38:49,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066101075] [2021-11-06 11:38:49,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066101075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:49,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:49,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:38:49,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980074962] [2021-11-06 11:38:49,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:38:49,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:38:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:38:49,961 INFO L87 Difference]: Start difference. First operand 989 states and 1268 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:52,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:52,618 INFO L93 Difference]: Finished difference Result 2827 states and 3607 transitions. [2021-11-06 11:38:52,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 11:38:52,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-06 11:38:52,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:52,626 INFO L225 Difference]: With dead ends: 2827 [2021-11-06 11:38:52,627 INFO L226 Difference]: Without dead ends: 1901 [2021-11-06 11:38:52,629 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:38:52,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2021-11-06 11:38:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 989. [2021-11-06 11:38:52,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 988 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:52,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1265 transitions. [2021-11-06 11:38:52,673 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1265 transitions. Word has length 90 [2021-11-06 11:38:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:52,674 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1265 transitions. [2021-11-06 11:38:52,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1265 transitions. [2021-11-06 11:38:52,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 11:38:52,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:52,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:52,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 11:38:52,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:52,892 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:52,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1774462527, now seen corresponding path program 1 times [2021-11-06 11:38:52,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:52,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325749041] [2021-11-06 11:38:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:52,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:53,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:38:53,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070737890] [2021-11-06 11:38:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:53,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:53,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:53,019 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:38:53,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 11:38:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:53,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 2913 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:38:53,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:38:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:54,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:54,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325749041] [2021-11-06 11:38:54,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:38:54,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070737890] [2021-11-06 11:38:54,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070737890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:54,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:54,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:38:54,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853091814] [2021-11-06 11:38:54,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:38:54,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:38:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:38:54,869 INFO L87 Difference]: Start difference. First operand 989 states and 1265 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:55,512 INFO L93 Difference]: Finished difference Result 2039 states and 2607 transitions. [2021-11-06 11:38:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 11:38:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-06 11:38:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:55,518 INFO L225 Difference]: With dead ends: 2039 [2021-11-06 11:38:55,518 INFO L226 Difference]: Without dead ends: 1202 [2021-11-06 11:38:55,520 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:38:55,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-06 11:38:55,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 989. [2021-11-06 11:38:55,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3101659751037344) internal successors, (1263), 988 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:55,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1263 transitions. [2021-11-06 11:38:55,560 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1263 transitions. Word has length 106 [2021-11-06 11:38:55,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:55,560 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1263 transitions. [2021-11-06 11:38:55,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:55,561 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1263 transitions. [2021-11-06 11:38:55,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 11:38:55,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:55,562 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:55,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:38:55,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:55,780 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:55,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2044010096, now seen corresponding path program 1 times [2021-11-06 11:38:55,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:55,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309299362] [2021-11-06 11:38:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:55,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:55,870 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:38:55,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636524134] [2021-11-06 11:38:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:55,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:55,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:55,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:38:55,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 11:38:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:38:56,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:38:56,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:38:57,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:38:57,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:38:57,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309299362] [2021-11-06 11:38:57,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:38:57,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636524134] [2021-11-06 11:38:57,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636524134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:38:57,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:38:57,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:38:57,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588098294] [2021-11-06 11:38:57,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:38:57,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:38:57,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:38:57,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:38:57,706 INFO L87 Difference]: Start difference. First operand 989 states and 1263 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:59,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:38:59,589 INFO L93 Difference]: Finished difference Result 2079 states and 2651 transitions. [2021-11-06 11:38:59,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 11:38:59,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-06 11:38:59,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:38:59,594 INFO L225 Difference]: With dead ends: 2079 [2021-11-06 11:38:59,594 INFO L226 Difference]: Without dead ends: 1242 [2021-11-06 11:38:59,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:38:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2021-11-06 11:38:59,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 989. [2021-11-06 11:38:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3060165975103735) internal successors, (1259), 988 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1259 transitions. [2021-11-06 11:38:59,630 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1259 transitions. Word has length 110 [2021-11-06 11:38:59,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:38:59,630 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1259 transitions. [2021-11-06 11:38:59,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:38:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1259 transitions. [2021-11-06 11:38:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-06 11:38:59,632 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:38:59,632 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:38:59,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:38:59,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:59,854 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:38:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:38:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash -22427764, now seen corresponding path program 1 times [2021-11-06 11:38:59,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:38:59,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694635936] [2021-11-06 11:38:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:59,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:38:59,973 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:38:59,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260712481] [2021-11-06 11:38:59,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:38:59,974 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:38:59,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:38:59,976 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:38:59,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 11:39:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:00,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3039 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:39:00,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:01,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:01,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694635936] [2021-11-06 11:39:01,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:01,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260712481] [2021-11-06 11:39:01,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260712481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:01,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:01,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:39:01,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695198607] [2021-11-06 11:39:01,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:39:01,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:01,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:39:01,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:39:01,706 INFO L87 Difference]: Start difference. First operand 989 states and 1259 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:02,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:02,842 INFO L93 Difference]: Finished difference Result 2316 states and 2943 transitions. [2021-11-06 11:39:02,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 11:39:02,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-06 11:39:02,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:02,847 INFO L225 Difference]: With dead ends: 2316 [2021-11-06 11:39:02,847 INFO L226 Difference]: Without dead ends: 1479 [2021-11-06 11:39:02,849 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:39:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-11-06 11:39:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 989. [2021-11-06 11:39:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.303941908713693) internal successors, (1257), 988 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:02,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1257 transitions. [2021-11-06 11:39:02,908 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1257 transitions. Word has length 118 [2021-11-06 11:39:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:02,916 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1257 transitions. [2021-11-06 11:39:02,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1257 transitions. [2021-11-06 11:39:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-06 11:39:02,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:02,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:02,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:03,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:03,144 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:03,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1548527879, now seen corresponding path program 1 times [2021-11-06 11:39:03,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:03,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122581061] [2021-11-06 11:39:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:03,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:03,241 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:03,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001299886] [2021-11-06 11:39:03,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:03,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:03,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:03,243 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:03,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 11:39:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:04,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 3093 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-06 11:39:04,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:05,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:05,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122581061] [2021-11-06 11:39:05,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:05,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001299886] [2021-11-06 11:39:05,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001299886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:05,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:05,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 11:39:05,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640835168] [2021-11-06 11:39:05,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 11:39:05,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:05,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 11:39:05,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:39:05,286 INFO L87 Difference]: Start difference. First operand 989 states and 1257 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:07,282 INFO L93 Difference]: Finished difference Result 2068 states and 2639 transitions. [2021-11-06 11:39:07,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 11:39:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-06 11:39:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:07,286 INFO L225 Difference]: With dead ends: 2068 [2021-11-06 11:39:07,286 INFO L226 Difference]: Without dead ends: 1231 [2021-11-06 11:39:07,287 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-06 11:39:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2021-11-06 11:39:07,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 989. [2021-11-06 11:39:07,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.295643153526971) internal successors, (1249), 988 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1249 transitions. [2021-11-06 11:39:07,322 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1249 transitions. Word has length 127 [2021-11-06 11:39:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:07,323 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1249 transitions. [2021-11-06 11:39:07,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1249 transitions. [2021-11-06 11:39:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-06 11:39:07,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:07,325 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:07,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:07,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:07,548 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:07,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:07,548 INFO L85 PathProgramCache]: Analyzing trace with hash -197690883, now seen corresponding path program 1 times [2021-11-06 11:39:07,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:07,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101460951] [2021-11-06 11:39:07,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:07,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:07,648 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:07,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1209008724] [2021-11-06 11:39:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:07,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:07,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:07,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:07,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 11:39:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:08,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 3089 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-06 11:39:08,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:09,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:09,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:09,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101460951] [2021-11-06 11:39:09,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:09,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209008724] [2021-11-06 11:39:09,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209008724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:09,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:09,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 11:39:09,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015879104] [2021-11-06 11:39:09,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:39:09,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:09,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:39:09,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:39:09,523 INFO L87 Difference]: Start difference. First operand 989 states and 1249 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:11,178 INFO L93 Difference]: Finished difference Result 2354 states and 2956 transitions. [2021-11-06 11:39:11,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 11:39:11,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-06 11:39:11,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:11,182 INFO L225 Difference]: With dead ends: 2354 [2021-11-06 11:39:11,182 INFO L226 Difference]: Without dead ends: 1517 [2021-11-06 11:39:11,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-06 11:39:11,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2021-11-06 11:39:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 989. [2021-11-06 11:39:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.2935684647302905) internal successors, (1247), 988 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1247 transitions. [2021-11-06 11:39:11,222 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1247 transitions. Word has length 130 [2021-11-06 11:39:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:11,222 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1247 transitions. [2021-11-06 11:39:11,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1247 transitions. [2021-11-06 11:39:11,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 11:39:11,224 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:11,224 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:11,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:11,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:11,440 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:11,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2058424223, now seen corresponding path program 1 times [2021-11-06 11:39:11,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:11,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435470844] [2021-11-06 11:39:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:11,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:11,524 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:11,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040142475] [2021-11-06 11:39:11,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:11,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:11,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:11,526 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:11,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-06 11:39:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:12,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 3184 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:39:12,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:13,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:13,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435470844] [2021-11-06 11:39:13,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:13,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040142475] [2021-11-06 11:39:13,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040142475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:13,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:13,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:39:13,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225524613] [2021-11-06 11:39:13,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:39:13,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:39:13,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:39:13,255 INFO L87 Difference]: Start difference. First operand 989 states and 1247 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:27,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:27,046 INFO L93 Difference]: Finished difference Result 2701 states and 3402 transitions. [2021-11-06 11:39:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 11:39:27,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 11:39:27,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:27,054 INFO L225 Difference]: With dead ends: 2701 [2021-11-06 11:39:27,054 INFO L226 Difference]: Without dead ends: 1781 [2021-11-06 11:39:27,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-06 11:39:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2021-11-06 11:39:27,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1013. [2021-11-06 11:39:27,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 988 states have (on average 1.29251012145749) internal successors, (1277), 1012 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1277 transitions. [2021-11-06 11:39:27,105 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1277 transitions. Word has length 138 [2021-11-06 11:39:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:27,106 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1277 transitions. [2021-11-06 11:39:27,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:27,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1277 transitions. [2021-11-06 11:39:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 11:39:27,108 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:27,108 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:27,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:27,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-06 11:39:27,332 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:27,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:27,332 INFO L85 PathProgramCache]: Analyzing trace with hash -520084193, now seen corresponding path program 1 times [2021-11-06 11:39:27,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:27,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830133549] [2021-11-06 11:39:27,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:27,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:27,418 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:27,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900443381] [2021-11-06 11:39:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:27,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:27,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:27,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:27,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-06 11:39:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:28,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 3181 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:39:28,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:28,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:28,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830133549] [2021-11-06 11:39:28,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:28,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900443381] [2021-11-06 11:39:28,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900443381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:28,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:28,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:39:28,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000362658] [2021-11-06 11:39:28,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:39:28,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:28,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:39:28,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:39:28,896 INFO L87 Difference]: Start difference. First operand 1013 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:29,402 INFO L93 Difference]: Finished difference Result 1975 states and 2490 transitions. [2021-11-06 11:39:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:39:29,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 11:39:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:29,406 INFO L225 Difference]: With dead ends: 1975 [2021-11-06 11:39:29,406 INFO L226 Difference]: Without dead ends: 1037 [2021-11-06 11:39:29,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:39:29,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2021-11-06 11:39:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 1025. [2021-11-06 11:39:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.289) internal successors, (1289), 1024 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1289 transitions. [2021-11-06 11:39:29,452 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1289 transitions. Word has length 138 [2021-11-06 11:39:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:29,453 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1289 transitions. [2021-11-06 11:39:29,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:29,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1289 transitions. [2021-11-06 11:39:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 11:39:29,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:29,455 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:29,492 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:29,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:29,672 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:29,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:29,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1001164451, now seen corresponding path program 1 times [2021-11-06 11:39:29,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:29,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19715127] [2021-11-06 11:39:29,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:29,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:29,759 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:29,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [318787386] [2021-11-06 11:39:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:29,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:29,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:29,761 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:29,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-06 11:39:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:30,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-06 11:39:30,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:31,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:31,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:31,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19715127] [2021-11-06 11:39:31,440 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:31,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318787386] [2021-11-06 11:39:31,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318787386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:31,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:31,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:39:31,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939755279] [2021-11-06 11:39:31,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:39:31,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:31,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:39:31,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:39:31,443 INFO L87 Difference]: Start difference. First operand 1025 states and 1289 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:32,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:32,087 INFO L93 Difference]: Finished difference Result 2810 states and 3526 transitions. [2021-11-06 11:39:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:39:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 11:39:32,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:32,095 INFO L225 Difference]: With dead ends: 2810 [2021-11-06 11:39:32,096 INFO L226 Difference]: Without dead ends: 1869 [2021-11-06 11:39:32,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:39:32,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2021-11-06 11:39:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1073. [2021-11-06 11:39:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 1048 states have (on average 1.2872137404580153) internal successors, (1349), 1072 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1349 transitions. [2021-11-06 11:39:32,148 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1349 transitions. Word has length 138 [2021-11-06 11:39:32,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:32,148 INFO L470 AbstractCegarLoop]: Abstraction has 1073 states and 1349 transitions. [2021-11-06 11:39:32,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:32,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1349 transitions. [2021-11-06 11:39:32,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-06 11:39:32,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:32,150 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:32,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:32,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-06 11:39:32,364 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1005834329, now seen corresponding path program 1 times [2021-11-06 11:39:32,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:32,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901766834] [2021-11-06 11:39:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:32,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:32,473 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:32,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1881634250] [2021-11-06 11:39:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:32,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:32,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:32,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:32,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-06 11:39:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:33,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 3170 conjuncts, 75 conjunts are in the unsatisfiable core [2021-11-06 11:39:33,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:39:35,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2021-11-06 11:39:35,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-06 11:39:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:39:36,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:39:36,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901766834] [2021-11-06 11:39:36,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:39:36,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881634250] [2021-11-06 11:39:36,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881634250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:39:36,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:39:36,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-06 11:39:36,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739177624] [2021-11-06 11:39:36,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-06 11:39:36,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:39:36,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-06 11:39:36,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-06 11:39:36,265 INFO L87 Difference]: Start difference. First operand 1073 states and 1349 transitions. Second operand has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:56,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:39:56,516 INFO L93 Difference]: Finished difference Result 3938 states and 4924 transitions. [2021-11-06 11:39:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-06 11:39:56,517 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-06 11:39:56,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:39:56,528 INFO L225 Difference]: With dead ends: 3938 [2021-11-06 11:39:56,528 INFO L226 Difference]: Without dead ends: 2975 [2021-11-06 11:39:56,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=348, Invalid=1058, Unknown=0, NotChecked=0, Total=1406 [2021-11-06 11:39:56,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-11-06 11:39:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1081. [2021-11-06 11:39:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1056 states have (on average 1.285037878787879) internal successors, (1357), 1080 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 1357 transitions. [2021-11-06 11:39:56,615 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 1357 transitions. Word has length 138 [2021-11-06 11:39:56,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:39:56,615 INFO L470 AbstractCegarLoop]: Abstraction has 1081 states and 1357 transitions. [2021-11-06 11:39:56,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.615384615384615) internal successors, (138), 13 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:39:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 1357 transitions. [2021-11-06 11:39:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-06 11:39:56,617 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:39:56,618 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:39:56,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-06 11:39:56,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-06 11:39:56,831 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:39:56,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:39:56,831 INFO L85 PathProgramCache]: Analyzing trace with hash -653265510, now seen corresponding path program 1 times [2021-11-06 11:39:56,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:39:56,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353936090] [2021-11-06 11:39:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:56,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:39:56,915 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:39:56,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594135979] [2021-11-06 11:39:56,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:39:56,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:39:56,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:39:56,917 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:39:56,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-06 11:39:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:39:58,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-06 11:39:58,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:40:00,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-06 11:40:00,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-06 11:40:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:40:00,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:40:00,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353936090] [2021-11-06 11:40:00,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:40:00,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594135979] [2021-11-06 11:40:00,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594135979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:40:00,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:40:00,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 11:40:00,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224868954] [2021-11-06 11:40:00,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 11:40:00,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:40:00,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 11:40:00,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:40:00,468 INFO L87 Difference]: Start difference. First operand 1081 states and 1357 transitions. Second operand has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:40:19,603 INFO L93 Difference]: Finished difference Result 3502 states and 4379 transitions. [2021-11-06 11:40:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-06 11:40:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-06 11:40:19,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:40:19,612 INFO L225 Difference]: With dead ends: 3502 [2021-11-06 11:40:19,612 INFO L226 Difference]: Without dead ends: 2521 [2021-11-06 11:40:19,614 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=217, Invalid=539, Unknown=0, NotChecked=0, Total=756 [2021-11-06 11:40:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2021-11-06 11:40:19,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 1888. [2021-11-06 11:40:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1888 states, 1863 states have (on average 1.2887815351583467) internal successors, (2401), 1887 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:19,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2401 transitions. [2021-11-06 11:40:19,736 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2401 transitions. Word has length 140 [2021-11-06 11:40:19,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:40:19,736 INFO L470 AbstractCegarLoop]: Abstraction has 1888 states and 2401 transitions. [2021-11-06 11:40:19,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.0) internal successors, (140), 10 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:19,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2401 transitions. [2021-11-06 11:40:19,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-06 11:40:19,738 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:40:19,739 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:40:19,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-06 11:40:19,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-06 11:40:19,956 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:40:19,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:40:19,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1608307740, now seen corresponding path program 1 times [2021-11-06 11:40:19,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:40:19,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166520018] [2021-11-06 11:40:19,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:40:19,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:40:20,035 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:40:20,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354112352] [2021-11-06 11:40:20,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:40:20,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:40:20,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:40:20,037 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:40:20,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-06 11:40:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:40:21,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 3167 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:40:21,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:40:21,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:40:21,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:40:21,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166520018] [2021-11-06 11:40:21,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:40:21,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354112352] [2021-11-06 11:40:21,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354112352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:40:21,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:40:21,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:40:21,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588397087] [2021-11-06 11:40:21,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:40:21,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:40:21,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:40:21,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:40:21,722 INFO L87 Difference]: Start difference. First operand 1888 states and 2401 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:40:23,878 INFO L93 Difference]: Finished difference Result 4036 states and 5174 transitions. [2021-11-06 11:40:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:40:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-06 11:40:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:40:23,886 INFO L225 Difference]: With dead ends: 4036 [2021-11-06 11:40:23,886 INFO L226 Difference]: Without dead ends: 2195 [2021-11-06 11:40:23,889 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:40:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2021-11-06 11:40:24,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 2008. [2021-11-06 11:40:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1983 states have (on average 1.269793242561775) internal successors, (2518), 2007 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:24,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2518 transitions. [2021-11-06 11:40:24,021 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2518 transitions. Word has length 140 [2021-11-06 11:40:24,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:40:24,022 INFO L470 AbstractCegarLoop]: Abstraction has 2008 states and 2518 transitions. [2021-11-06 11:40:24,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:40:24,022 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2518 transitions. [2021-11-06 11:40:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-06 11:40:24,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:40:24,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:40:24,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-06 11:40:24,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-06 11:40:24,244 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:40:24,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:40:24,244 INFO L85 PathProgramCache]: Analyzing trace with hash -374324517, now seen corresponding path program 1 times [2021-11-06 11:40:24,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:40:24,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470624116] [2021-11-06 11:40:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:40:24,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:40:24,314 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:40:24,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760860428] [2021-11-06 11:40:24,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:40:24,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:40:24,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:40:24,316 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:40:24,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-06 11:40:26,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:40:26,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 139 conjunts are in the unsatisfiable core [2021-11-06 11:40:26,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:40:26,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:40:26,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:26,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-06 11:40:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:27,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-06 11:40:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:27,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-06 11:40:27,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:27,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-06 11:40:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:28,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-06 11:40:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:28,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-11-06 11:40:28,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:28,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-06 11:40:28,791 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-06 11:40:28,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-06 11:40:29,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 86 [2021-11-06 11:40:29,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:29,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 74 [2021-11-06 11:40:29,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:29,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 59 [2021-11-06 11:40:31,637 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-06 11:40:31,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 33 [2021-11-06 11:40:32,858 INFO L354 Elim1Store]: treesize reduction 36, result has 26.5 percent of original size [2021-11-06 11:40:32,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 25 treesize of output 29 [2021-11-06 11:40:33,341 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-06 11:40:33,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 90 [2021-11-06 11:40:33,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:33,440 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-06 11:40:33,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 78 [2021-11-06 11:40:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:33,541 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-06 11:40:33,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 63 [2021-11-06 11:40:38,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:38,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-06 11:40:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:38,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-06 11:40:38,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2021-11-06 11:40:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:40:39,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:40:39,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470624116] [2021-11-06 11:40:39,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:40:39,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760860428] [2021-11-06 11:40:39,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760860428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:40:39,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:40:39,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-06 11:40:39,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259630087] [2021-11-06 11:40:39,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-06 11:40:39,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:40:39,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-06 11:40:39,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=689, Unknown=1, NotChecked=0, Total=812 [2021-11-06 11:40:39,165 INFO L87 Difference]: Start difference. First operand 2008 states and 2518 transitions. Second operand has 29 states, 29 states have (on average 4.862068965517241) internal successors, (141), 29 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:41:29,248 INFO L93 Difference]: Finished difference Result 4146 states and 5200 transitions. [2021-11-06 11:41:29,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-06 11:41:29,249 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.862068965517241) internal successors, (141), 29 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-06 11:41:29,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:41:29,254 INFO L225 Difference]: With dead ends: 4146 [2021-11-06 11:41:29,254 INFO L226 Difference]: Without dead ends: 2045 [2021-11-06 11:41:29,258 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=462, Invalid=1699, Unknown=1, NotChecked=0, Total=2162 [2021-11-06 11:41:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2045 states. [2021-11-06 11:41:29,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2045 to 2045. [2021-11-06 11:41:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 2020 states have (on average 1.2683168316831683) internal successors, (2562), 2044 states have internal predecessors, (2562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2562 transitions. [2021-11-06 11:41:29,360 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2562 transitions. Word has length 141 [2021-11-06 11:41:29,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:41:29,361 INFO L470 AbstractCegarLoop]: Abstraction has 2045 states and 2562 transitions. [2021-11-06 11:41:29,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.862068965517241) internal successors, (141), 29 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:29,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2562 transitions. [2021-11-06 11:41:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-06 11:41:29,363 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:41:29,363 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:41:29,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-11-06 11:41:29,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:41:29,579 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:41:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:41:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1991764967, now seen corresponding path program 1 times [2021-11-06 11:41:29,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:41:29,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222552198] [2021-11-06 11:41:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:41:29,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:41:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:41:29,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:41:29,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:41:29,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222552198] [2021-11-06 11:41:29,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222552198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:41:29,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:41:29,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:41:29,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137673075] [2021-11-06 11:41:29,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:41:29,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:41:29,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:41:29,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:41:29,871 INFO L87 Difference]: Start difference. First operand 2045 states and 2562 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:41:30,016 INFO L93 Difference]: Finished difference Result 4036 states and 5061 transitions. [2021-11-06 11:41:30,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:41:30,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-06 11:41:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:41:30,028 INFO L225 Difference]: With dead ends: 4036 [2021-11-06 11:41:30,028 INFO L226 Difference]: Without dead ends: 2044 [2021-11-06 11:41:30,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:41:30,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2021-11-06 11:41:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2043. [2021-11-06 11:41:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2018 states have (on average 1.2680872150644202) internal successors, (2559), 2042 states have internal predecessors, (2559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2559 transitions. [2021-11-06 11:41:30,131 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2559 transitions. Word has length 141 [2021-11-06 11:41:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:41:30,132 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2559 transitions. [2021-11-06 11:41:30,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2559 transitions. [2021-11-06 11:41:30,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-06 11:41:30,133 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:41:30,134 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:41:30,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-06 11:41:30,134 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:41:30,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:41:30,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1374714991, now seen corresponding path program 1 times [2021-11-06 11:41:30,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:41:30,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093481450] [2021-11-06 11:41:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:41:30,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:41:30,244 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:41:30,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2107450338] [2021-11-06 11:41:30,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:41:30,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:41:30,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:41:30,246 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:41:30,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-06 11:41:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:41:31,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 3214 conjuncts, 89 conjunts are in the unsatisfiable core [2021-11-06 11:41:31,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:41:32,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 37 [2021-11-06 11:41:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:41:34,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:41:34,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093481450] [2021-11-06 11:41:34,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:41:34,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107450338] [2021-11-06 11:41:34,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107450338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:41:34,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:41:34,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-06 11:41:34,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939075660] [2021-11-06 11:41:34,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-06 11:41:34,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:41:34,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-06 11:41:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-11-06 11:41:34,559 INFO L87 Difference]: Start difference. First operand 2043 states and 2559 transitions. Second operand has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:42:25,006 INFO L93 Difference]: Finished difference Result 8564 states and 10687 transitions. [2021-11-06 11:42:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-06 11:42:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-06 11:42:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:42:25,022 INFO L225 Difference]: With dead ends: 8564 [2021-11-06 11:42:25,023 INFO L226 Difference]: Without dead ends: 6845 [2021-11-06 11:42:25,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2621 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1282, Invalid=7274, Unknown=0, NotChecked=0, Total=8556 [2021-11-06 11:42:25,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2021-11-06 11:42:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 2097. [2021-11-06 11:42:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2072 states have (on average 1.2697876447876448) internal successors, (2631), 2096 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:25,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2631 transitions. [2021-11-06 11:42:25,174 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2631 transitions. Word has length 144 [2021-11-06 11:42:25,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:42:25,174 INFO L470 AbstractCegarLoop]: Abstraction has 2097 states and 2631 transitions. [2021-11-06 11:42:25,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.578947368421052) internal successors, (144), 19 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:42:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2631 transitions. [2021-11-06 11:42:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 11:42:25,177 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:42:25,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:42:25,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-06 11:42:25,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:42:25,389 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:42:25,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:42:25,390 INFO L85 PathProgramCache]: Analyzing trace with hash -832263013, now seen corresponding path program 1 times [2021-11-06 11:42:25,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:42:25,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199843792] [2021-11-06 11:42:25,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:42:25,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:42:25,473 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:42:25,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666551737] [2021-11-06 11:42:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:42:25,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:42:25,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:42:25,475 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:42:25,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-06 11:42:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:42:27,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-06 11:42:27,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:42:28,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-06 11:42:28,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-06 11:42:29,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-06 11:42:29,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-06 11:42:29,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 11:42:29,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2021-11-06 11:42:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:42:29,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:42:29,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199843792] [2021-11-06 11:42:29,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:42:29,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666551737] [2021-11-06 11:42:29,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666551737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:42:29,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:42:29,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 11:42:29,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008883354] [2021-11-06 11:42:29,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 11:42:29,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:42:29,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 11:42:29,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:42:29,777 INFO L87 Difference]: Start difference. First operand 2097 states and 2631 transitions. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:43:10,032 INFO L93 Difference]: Finished difference Result 5363 states and 6710 transitions. [2021-11-06 11:43:10,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-06 11:43:10,033 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-06 11:43:10,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:43:10,040 INFO L225 Difference]: With dead ends: 5363 [2021-11-06 11:43:10,040 INFO L226 Difference]: Without dead ends: 4338 [2021-11-06 11:43:10,042 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2021-11-06 11:43:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4338 states. [2021-11-06 11:43:10,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4338 to 2124. [2021-11-06 11:43:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2099 states have (on average 1.2691757979990472) internal successors, (2664), 2123 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2664 transitions. [2021-11-06 11:43:10,147 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2664 transitions. Word has length 148 [2021-11-06 11:43:10,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:43:10,148 INFO L470 AbstractCegarLoop]: Abstraction has 2124 states and 2664 transitions. [2021-11-06 11:43:10,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2664 transitions. [2021-11-06 11:43:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 11:43:10,150 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:43:10,150 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:43:10,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-06 11:43:10,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:43:10,360 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:43:10,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:43:10,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1776524445, now seen corresponding path program 1 times [2021-11-06 11:43:10,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:43:10,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934854842] [2021-11-06 11:43:10,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:43:10,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:43:10,443 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:43:10,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484478359] [2021-11-06 11:43:10,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:43:10,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:43:10,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:43:10,445 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:43:10,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-06 11:43:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:43:11,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:43:11,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:43:12,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:43:12,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:43:12,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934854842] [2021-11-06 11:43:12,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:43:12,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484478359] [2021-11-06 11:43:12,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484478359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:43:12,620 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:43:12,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:43:12,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848420807] [2021-11-06 11:43:12,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:43:12,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:43:12,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:43:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:43:12,621 INFO L87 Difference]: Start difference. First operand 2124 states and 2664 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:43:25,095 INFO L93 Difference]: Finished difference Result 5336 states and 6672 transitions. [2021-11-06 11:43:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:43:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-06 11:43:25,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:43:25,102 INFO L225 Difference]: With dead ends: 5336 [2021-11-06 11:43:25,102 INFO L226 Difference]: Without dead ends: 3288 [2021-11-06 11:43:25,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:43:25,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-11-06 11:43:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 2188. [2021-11-06 11:43:25,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 2163 states have (on average 1.260748959778086) internal successors, (2727), 2187 states have internal predecessors, (2727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:25,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2727 transitions. [2021-11-06 11:43:25,244 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2727 transitions. Word has length 148 [2021-11-06 11:43:25,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:43:25,244 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 2727 transitions. [2021-11-06 11:43:25,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:43:25,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2727 transitions. [2021-11-06 11:43:25,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-06 11:43:25,246 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:43:25,247 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:43:25,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-06 11:43:25,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:43:25,462 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:43:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:43:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1839170597, now seen corresponding path program 1 times [2021-11-06 11:43:25,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:43:25,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812563934] [2021-11-06 11:43:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:43:25,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:43:25,537 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:43:25,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530150646] [2021-11-06 11:43:25,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:43:25,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:43:25,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:43:25,539 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:43:25,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-06 11:43:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:43:27,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 3224 conjuncts, 165 conjunts are in the unsatisfiable core [2021-11-06 11:43:27,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:43:30,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-06 11:43:30,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-06 11:43:31,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2021-11-06 11:43:31,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-06 11:43:32,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 11:43:32,395 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:43:32,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 47 [2021-11-06 11:43:32,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 11:43:32,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:43:32,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2021-11-06 11:43:33,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:43:33,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:43:33,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812563934] [2021-11-06 11:43:33,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:43:33,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530150646] [2021-11-06 11:43:33,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530150646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:43:33,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:43:33,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-06 11:43:33,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229038081] [2021-11-06 11:43:33,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-06 11:43:33,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:43:33,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-06 11:43:33,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2021-11-06 11:43:33,057 INFO L87 Difference]: Start difference. First operand 2188 states and 2727 transitions. Second operand has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:44:40,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:44:40,399 INFO L93 Difference]: Finished difference Result 8565 states and 10564 transitions. [2021-11-06 11:44:40,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-06 11:44:40,400 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-06 11:44:40,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:44:40,414 INFO L225 Difference]: With dead ends: 8565 [2021-11-06 11:44:40,414 INFO L226 Difference]: Without dead ends: 6733 [2021-11-06 11:44:40,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=807, Invalid=4163, Unknown=0, NotChecked=0, Total=4970 [2021-11-06 11:44:40,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2021-11-06 11:44:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 3056. [2021-11-06 11:44:40,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3056 states, 3031 states have (on average 1.257670735730782) internal successors, (3812), 3055 states have internal predecessors, (3812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:44:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3056 states to 3056 states and 3812 transitions. [2021-11-06 11:44:40,669 INFO L78 Accepts]: Start accepts. Automaton has 3056 states and 3812 transitions. Word has length 148 [2021-11-06 11:44:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:44:40,670 INFO L470 AbstractCegarLoop]: Abstraction has 3056 states and 3812 transitions. [2021-11-06 11:44:40,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.92) internal successors, (148), 25 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:44:40,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3056 states and 3812 transitions. [2021-11-06 11:44:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 11:44:40,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:44:40,672 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:44:40,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-06 11:44:40,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:44:40,888 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:44:40,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:44:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash -10288936, now seen corresponding path program 1 times [2021-11-06 11:44:40,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:44:40,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271170063] [2021-11-06 11:44:40,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:44:40,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:44:40,956 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:44:40,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985919044] [2021-11-06 11:44:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:44:40,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:44:40,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:44:40,958 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:44:40,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-06 11:44:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:44:43,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 3204 conjuncts, 154 conjunts are in the unsatisfiable core [2021-11-06 11:44:43,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:44:43,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:44:44,610 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-06 11:44:44,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-06 11:44:46,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:46,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-06 11:44:46,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:46,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-06 11:44:46,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:46,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-06 11:44:46,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:46,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-06 11:44:46,892 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-06 11:44:46,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2021-11-06 11:44:47,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:47,166 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-06 11:44:47,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 58 [2021-11-06 11:44:47,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:47,254 INFO L354 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2021-11-06 11:44:47,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 43 [2021-11-06 11:44:48,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:48,352 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:44:48,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 58 [2021-11-06 11:44:48,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:44:48,409 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:44:48,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2021-11-06 11:44:48,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-06 11:44:48,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-11-06 11:44:49,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:44:49,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:44:49,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271170063] [2021-11-06 11:44:49,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:44:49,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985919044] [2021-11-06 11:44:49,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985919044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:44:49,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:44:49,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-06 11:44:49,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862286329] [2021-11-06 11:44:49,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-06 11:44:49,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:44:49,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-06 11:44:49,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2021-11-06 11:44:49,325 INFO L87 Difference]: Start difference. First operand 3056 states and 3812 transitions. Second operand has 22 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 22 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:45:23,588 INFO L93 Difference]: Finished difference Result 6460 states and 8029 transitions. [2021-11-06 11:45:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-06 11:45:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 22 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-11-06 11:45:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:45:23,596 INFO L225 Difference]: With dead ends: 6460 [2021-11-06 11:45:23,596 INFO L226 Difference]: Without dead ends: 4449 [2021-11-06 11:45:23,600 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=417, Invalid=2339, Unknown=0, NotChecked=0, Total=2756 [2021-11-06 11:45:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2021-11-06 11:45:23,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 3147. [2021-11-06 11:45:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3147 states, 3122 states have (on average 1.2565663036515053) internal successors, (3923), 3146 states have internal predecessors, (3923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 3923 transitions. [2021-11-06 11:45:23,875 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 3923 transitions. Word has length 149 [2021-11-06 11:45:23,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:45:23,876 INFO L470 AbstractCegarLoop]: Abstraction has 3147 states and 3923 transitions. [2021-11-06 11:45:23,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.7727272727272725) internal successors, (149), 22 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 3923 transitions. [2021-11-06 11:45:23,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 11:45:23,878 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:45:23,878 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:45:23,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-06 11:45:24,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:45:24,094 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:45:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:45:24,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1672155112, now seen corresponding path program 1 times [2021-11-06 11:45:24,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:45:24,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975351002] [2021-11-06 11:45:24,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:45:24,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:45:24,185 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:45:24,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39780142] [2021-11-06 11:45:24,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:45:24,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:45:24,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:45:24,187 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:45:24,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-06 11:45:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:45:26,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 3204 conjuncts, 80 conjunts are in the unsatisfiable core [2021-11-06 11:45:26,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:45:26,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:45:26,522 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-06 11:45:26,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-06 11:45:26,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-06 11:45:26,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:26,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 28 [2021-11-06 11:45:27,569 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-06 11:45:27,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 31 [2021-11-06 11:45:27,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:27,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 26 [2021-11-06 11:45:28,018 INFO L354 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2021-11-06 11:45:28,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2021-11-06 11:45:28,275 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-06 11:45:28,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 30 [2021-11-06 11:45:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:45:29,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:45:29,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975351002] [2021-11-06 11:45:29,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:45:29,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39780142] [2021-11-06 11:45:29,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39780142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:45:29,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:45:29,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-06 11:45:29,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351190051] [2021-11-06 11:45:29,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-06 11:45:29,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:45:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-06 11:45:29,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-06 11:45:29,131 INFO L87 Difference]: Start difference. First operand 3147 states and 3923 transitions. Second operand has 15 states, 15 states have (on average 9.933333333333334) internal successors, (149), 15 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:45:48,759 INFO L93 Difference]: Finished difference Result 6225 states and 7766 transitions. [2021-11-06 11:45:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-06 11:45:48,759 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.933333333333334) internal successors, (149), 15 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-11-06 11:45:48,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:45:48,762 INFO L225 Difference]: With dead ends: 6225 [2021-11-06 11:45:48,762 INFO L226 Difference]: Without dead ends: 3182 [2021-11-06 11:45:48,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-11-06 11:45:48,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2021-11-06 11:45:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 3152. [2021-11-06 11:45:48,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 3127 states have (on average 1.2561560601215223) internal successors, (3928), 3151 states have internal predecessors, (3928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:48,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 3928 transitions. [2021-11-06 11:45:48,968 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 3928 transitions. Word has length 149 [2021-11-06 11:45:48,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:45:48,969 INFO L470 AbstractCegarLoop]: Abstraction has 3152 states and 3928 transitions. [2021-11-06 11:45:48,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.933333333333334) internal successors, (149), 15 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:45:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 3928 transitions. [2021-11-06 11:45:48,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 11:45:48,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:45:48,971 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:45:49,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-06 11:45:49,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-06 11:45:49,180 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:45:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:45:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash -891800850, now seen corresponding path program 1 times [2021-11-06 11:45:49,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:45:49,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050491329] [2021-11-06 11:45:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:45:49,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:45:49,257 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:45:49,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915301641] [2021-11-06 11:45:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:45:49,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:45:49,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:45:49,259 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:45:49,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-06 11:45:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:45:51,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 3204 conjuncts, 115 conjunts are in the unsatisfiable core [2021-11-06 11:45:51,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:45:51,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:45:52,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:52,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-06 11:45:53,445 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-06 11:45:53,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-06 11:45:53,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:53,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2021-11-06 11:45:54,117 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-06 11:45:54,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 34 [2021-11-06 11:45:54,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:45:54,420 INFO L354 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2021-11-06 11:45:54,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 34 [2021-11-06 11:45:54,937 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-06 11:45:54,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22 [2021-11-06 11:45:55,324 INFO L354 Elim1Store]: treesize reduction 76, result has 20.0 percent of original size [2021-11-06 11:45:55,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 47 [2021-11-06 11:46:02,654 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:46:02,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050491329] [2021-11-06 11:46:02,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:46:02,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915301641] [2021-11-06 11:46:02,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [ULTIMATE.start_aws_mul_u64_checked_~r.base, ULTIMATE.start_aws_mul_u64_checked_~r.offset] [2021-11-06 11:46:02,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:02,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-06 11:46:02,655 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-06 11:46:02,655 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-06 11:46:02,660 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,663 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,664 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,665 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,666 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,666 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 11:46:02,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:02,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-06 11:46:02,874 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:02,876 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 11:46:02,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:46:02 BoogieIcfgContainer [2021-11-06 11:46:02,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 11:46:02,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 11:46:02,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 11:46:02,915 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 11:46:02,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:38:40" (3/4) ... [2021-11-06 11:46:02,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 11:46:02,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 11:46:02,919 INFO L168 Benchmark]: Toolchain (without parser) took 459883.23 ms. Allocated memory was 104.9 MB in the beginning and 520.1 MB in the end (delta: 415.2 MB). Free memory was 62.7 MB in the beginning and 208.0 MB in the end (delta: -145.3 MB). Peak memory consumption was 268.1 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,919 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 49.1 MB in the beginning and 49.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:46:02,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2696.90 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 62.7 MB in the beginning and 79.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 309.43 ms. Allocated memory is still 125.8 MB. Free memory was 79.6 MB in the beginning and 47.5 MB in the end (delta: 32.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,920 INFO L168 Benchmark]: Boogie Preprocessor took 279.36 ms. Allocated memory is still 125.8 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 42.4 kB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,920 INFO L168 Benchmark]: RCFGBuilder took 14316.93 ms. Allocated memory was 125.8 MB in the beginning and 358.6 MB in the end (delta: 232.8 MB). Free memory was 47.5 MB in the beginning and 213.0 MB in the end (delta: -165.6 MB). Peak memory consumption was 211.4 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,920 INFO L168 Benchmark]: TraceAbstraction took 442267.82 ms. Allocated memory was 358.6 MB in the beginning and 520.1 MB in the end (delta: 161.5 MB). Free memory was 213.0 MB in the beginning and 209.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 166.5 MB. Max. memory is 16.1 GB. [2021-11-06 11:46:02,920 INFO L168 Benchmark]: Witness Printer took 3.30 ms. Allocated memory is still 520.1 MB. Free memory was 209.0 MB in the beginning and 208.0 MB in the end (delta: 999.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 11:46:02,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 77.6 MB. Free memory was 49.1 MB in the beginning and 49.1 MB in the end (delta: 26.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2696.90 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 62.7 MB in the beginning and 79.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 42.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 309.43 ms. Allocated memory is still 125.8 MB. Free memory was 79.6 MB in the beginning and 47.5 MB in the end (delta: 32.1 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 279.36 ms. Allocated memory is still 125.8 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 42.4 kB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 14316.93 ms. Allocated memory was 125.8 MB in the beginning and 358.6 MB in the end (delta: 232.8 MB). Free memory was 47.5 MB in the beginning and 213.0 MB in the end (delta: -165.6 MB). Peak memory consumption was 211.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 442267.82 ms. Allocated memory was 358.6 MB in the beginning and 520.1 MB in the end (delta: 161.5 MB). Free memory was 213.0 MB in the beginning and 209.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 166.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.30 ms. Allocated memory is still 520.1 MB. Free memory was 209.0 MB in the beginning and 208.0 MB in the end (delta: 999.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7793, overapproximation of bitwiseAnd at line 8088. Possible FailurePath: [L6915-L6920] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7360] static __thread int tl_last_error = 0; [L7792-L7940] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7943-L7946] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7948-L7957] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7959-L7962] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7964-L7968] static _Bool s_common_library_initialized = 0 ; [L8456] struct aws_priority_queue queue; [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6789-L6791] _Bool container_is_bounded = aws_array_list_is_bounded(&queue->container, max_initial_item_allocation, max_item_size); [L6735] EXPR list->item_size [L6734-L6735] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L6738] EXPR list->length [L6737-L6738] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L6739] return item_size_is_bounded && length_is_bounded; [L6797-L6799] _Bool backpointers_list_is_bounded = aws_array_list_is_bounded( &queue->backpointers, max_initial_item_allocation, sizeof(struct aws_priority_queue_node *)); [L6800] return container_is_bounded && backpointers_list_is_bounded; [L211] COND FALSE !(!cond) [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND TRUE list->current_size == 0 && list->length == 0 [L6744] list->data [L211] COND FALSE !(!cond) [L6939] return &s_can_fail_allocator_static; [L6747] list->alloc = can_fail_allocator() [L6743] EXPR list->current_size [L6743] list->current_size == 0 && list->length == 0 [L6743] EXPR list->length [L6743] list->current_size == 0 && list->length == 0 [L6743] COND FALSE !(list->current_size == 0 && list->length == 0) [L6749] EXPR list->current_size [L211] COND FALSE !(!cond) [L6935] return malloc(size); [L6749] list->data = bounded_malloc(list->current_size) [L261] return __VERIFIER_nondet_bool(); [L6750-L6752] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L6750-L6752] list->alloc = nondet_bool() ? ((void *)0) : can_fail_allocator() [L6806] queue->pred = nondet_compare [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8464] size_t root; [L8465] queue.container.length [L211] COND FALSE !(!cond) [L8467] queue.backpointers.data [L8467] COND TRUE queue.backpointers.data [L8474] size_t i; [L8475] i = 0 [L8475] EXPR queue.container.length [L8475] COND FALSE !(i < queue.container.length) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L211] COND FALSE !(!cond) [L8079] queue->container.length [L211] COND FALSE !(!cond) [L8082-L8085] _Bool did_move = 0 ; [L8087] void *parent_item, *child_item; [L8088] EXPR ((index)&1) ? (index) >> 1 : (index) > 1 ? ((index)-2) >> 1 : 0 [L8088] size_t parent = (((index)&1) ? (index) >> 1 : (index) > 1 ? ((index)-2) >> 1 : 0); [L8089] COND FALSE !(\read(index)) [L8284] COND FALSE !(!queue) [L8291] EXPR queue->pred [L8290-L8293] _Bool pred_is_valid = (queue->pred != ((void *)0) ); [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8295-L8296] _Bool container_is_valid = aws_array_list_is_valid(&queue->container); [L8225] COND FALSE !(!queue) [L2939] COND FALSE !(!list) [L2944] size_t required_size = 0; [L2948] EXPR list->length [L2948] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2498] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2500] *r = a * b [L2501] return (0); [L2590] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L2946-L2948] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L2951] EXPR list->current_size [L2951] EXPR \read(required_size) [L2950-L2951] _Bool current_size_is_valid = (list->current_size >= required_size); [L2955] EXPR list->current_size [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955] EXPR list->data [L2955-L2956] EXPR list->current_size == 0 && list->data == ((void *)0) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2957] EXPR list->current_size [L2957] EXPR (((list->current_size)) == 0) || ((list->data)) [L2955-L2957] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L2953-L2957] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L2960] EXPR list->item_size [L2959-L2960] _Bool item_size_is_valid = (list->item_size != 0); [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L2944] size_t required_size = 0; [L2961] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235] EXPR queue->backpointers.current_size [L8235] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8236] EXPR queue->backpointers.data [L8235-L8238] EXPR aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ) [L8233-L8238] _Bool backpointer_list_is_valid = ((aws_array_list_is_valid(&queue->backpointers) && (queue->backpointers.current_size != 0) && (queue->backpointers.data != ((void *)0) ))); [L8246] EXPR queue->backpointers.item_size [L8245-L8246] _Bool backpointer_list_item_size = queue->backpointers.item_size == sizeof(struct aws_priority_queue_node *); [L8249] EXPR queue->backpointers.length [L8249] EXPR queue->container.length [L8248-L8249] _Bool lists_equal_lengths = queue->backpointers.length == queue->container.length; [L8252] EXPR queue->backpointers.current_size [L8251-L8252] _Bool backpointers_non_zero_current_size = queue->backpointers.current_size > 0; [L8260-L8263] _Bool backpointers_valid_deep = 1 ; [L8268] EXPR queue->backpointers.current_size [L8268] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 [L8268-L8269] EXPR queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) [L8266-L8270] _Bool backpointers_zero = (queue->backpointers.current_size == 0 && queue->backpointers.length == 0 && queue->backpointers.data == ((void *)0) ); [L8272-L8275] _Bool backpointer_struct_is_valid = backpointers_zero || (backpointer_list_item_size && lists_equal_lengths && backpointers_non_zero_current_size && backpointers_valid_deep); [L8277] EXPR (backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers)) [L8277] return ((backpointer_list_is_valid && backpointer_struct_is_valid) || aws_is_mem_zeroed(&(queue->backpointers), sizeof(queue->backpointers))); [L8299-L8300] _Bool backpointers_valid = aws_priority_queue_backpointers_valid(queue); [L8301] return pred_is_valid && container_is_valid && backpointers_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 233]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 994 locations, 25 error locations. Started 1 CEGAR loops. OverallTime: 442.1s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 344.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 35856 SDtfs, 88520 SDslu, 167269 SDs, 0 SdLazy, 45597 SolverSat, 3030 SolverUnsat, 55 SolverUnknown, 0 SolverNotchecked, 273.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2891 GetRequests, 2422 SyntacticMatches, 0 SemanticMatches, 469 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5779 ImplicationChecksByTransitivity, 55.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3152occurred in iteration=24, InterpolantAutomatonStates: 405, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 24 MinimizatonAttempts, 21809 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.9s SsaConstructionTime, 16.3s SatisfiabilityAnalysisTime, 59.1s InterpolantComputationTime, 3030 NumberOfCodeBlocks, 3030 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 2857 ConstructedInterpolants, 25 QuantifiedInterpolants, 13407 SizeOfPredicates, 429 NumberOfNonLiveVariables, 65159 ConjunctsInSsa, 1058 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-06 11:46:03,147 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-06 11:46:03,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_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 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:46:04,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:46:04,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:46:05,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:46:05,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:46:05,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:46:05,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:46:05,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:46:05,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:46:05,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:46:05,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:46:05,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:46:05,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:46:05,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:46:05,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:46:05,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:46:05,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:46:05,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:46:05,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:46:05,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:46:05,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:46:05,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:46:05,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:46:05,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:46:05,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:46:05,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:46:05,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:46:05,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:46:05,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:46:05,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:46:05,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:46:05,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:46:05,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:46:05,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:46:05,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:46:05,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:46:05,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:46:05,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:46:05,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:46:05,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:46:05,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:46:05,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-06 11:46:05,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:46:05,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:46:05,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:46:05,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:46:05,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:46:05,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:46:05,125 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:46:05,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:46:05,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:46:05,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:46:05,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:46:05,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:46:05,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-06 11:46:05,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-06 11:46:05,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:46:05,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:46:05,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:46:05,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:46:05,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:46:05,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:46:05,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:46:05,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:46:05,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:46:05,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:46:05,129 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-06 11:46:05,129 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-06 11:46:05,129 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:46:05,129 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:46:05,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:46:05,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:46:05,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-06 11:46:05,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 723ac1839b12f7ec2d51e01d6b07ab9cd6a1336eb9a801e97d56c2782f32ef5c [2021-11-06 11:46:05,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:46:05,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:46:05,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:46:05,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:46:05,495 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:46:05,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:46:05,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2332cedbb/9ee305bb0d25413c9763ace6d62a616d/FLAGbbccfe2ea [2021-11-06 11:46:06,272 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:46:06,274 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:46:06,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2332cedbb/9ee305bb0d25413c9763ace6d62a616d/FLAGbbccfe2ea [2021-11-06 11:46:06,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2332cedbb/9ee305bb0d25413c9763ace6d62a616d [2021-11-06 11:46:06,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:46:06,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:46:06,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:46:06,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:46:06,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:46:06,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:46:06" (1/1) ... [2021-11-06 11:46:06,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee89adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:06, skipping insertion in model container [2021-11-06 11:46:06,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:46:06" (1/1) ... [2021-11-06 11:46:06,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:46:06,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:46:06,723 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-06 11:46:06,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-06 11:46:06,763 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:46:06,772 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:46:07,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,520 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,536 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,539 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,546 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,548 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,549 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,787 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:46:07,788 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:46:07,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:46:07,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:46:07,790 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:46:07,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:46:07,791 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:46:07,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:46:07,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:46:07,793 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:46:07,910 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:46:07,936 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,937 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,942 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:07,948 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,009 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,017 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,019 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,020 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,021 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,023 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,024 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,025 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,041 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,057 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,059 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:46:08,127 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:46:08,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4502,4515] [2021-11-06 11:46:08,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_up_harness.i[4562,4575] [2021-11-06 11:46:08,156 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:46:08,159 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:46:08,201 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,205 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,206 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,207 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,217 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,217 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,220 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,221 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:46:08,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:46:08,277 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:46:08,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:46:08,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:46:08,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:46:08,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:46:08,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:46:08,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:46:08,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:46:08,307 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:46:08,326 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,327 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,328 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,338 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,372 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,376 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,377 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,378 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,379 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,382 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:46:08,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:46:08,612 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:46:08,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08 WrapperNode [2021-11-06 11:46:08,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:46:08,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:46:08,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:46:08,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:46:08,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:08,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:08,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:46:08,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:46:08,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:46:08,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:46:08,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:08,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:08,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:08,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:09,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:09,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:09,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:09,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:46:09,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:46:09,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:46:09,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:46:09,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (1/1) ... [2021-11-06 11:46:09,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:46:09,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:46:09,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:46:09,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 11:46:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:46:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-06 11:46:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-06 11:46:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-06 11:46:09,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:46:09,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:46:09,214 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-06 11:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-06 11:46:09,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:46:28,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:46:28,701 INFO L299 CfgBuilder]: Removed 788 assume(true) statements. [2021-11-06 11:46:28,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:46:28 BoogieIcfgContainer [2021-11-06 11:46:28,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:46:28,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:46:28,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:46:28,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:46:28,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:46:06" (1/3) ... [2021-11-06 11:46:28,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1746c173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:46:28, skipping insertion in model container [2021-11-06 11:46:28,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:46:08" (2/3) ... [2021-11-06 11:46:28,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1746c173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:46:28, skipping insertion in model container [2021-11-06 11:46:28,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:46:28" (3/3) ... [2021-11-06 11:46:28,712 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_up_harness.i [2021-11-06 11:46:28,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:46:28,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-06 11:46:28,762 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:46:28,768 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 11:46:28,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-06 11:46:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:46:28,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:28,807 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:28,808 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:28,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:28,813 INFO L85 PathProgramCache]: Analyzing trace with hash -97697725, now seen corresponding path program 1 times [2021-11-06 11:46:28,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:28,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215017703] [2021-11-06 11:46:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:28,835 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:28,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:28,845 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:28,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-06 11:46:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:31,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-06 11:46:31,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:31,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:31,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:31,604 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:31,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215017703] [2021-11-06 11:46:31,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215017703] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:31,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:31,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-06 11:46:31,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012569754] [2021-11-06 11:46:31,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:46:31,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:31,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:46:31,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:46:31,624 INFO L87 Difference]: Start difference. First operand has 994 states, 968 states have (on average 1.4287190082644627) internal successors, (1383), 993 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:31,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:31,688 INFO L93 Difference]: Finished difference Result 1982 states and 2759 transitions. [2021-11-06 11:46:31,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:46:31,690 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:46:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:31,708 INFO L225 Difference]: With dead ends: 1982 [2021-11-06 11:46:31,708 INFO L226 Difference]: Without dead ends: 989 [2021-11-06 11:46:31,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:46:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2021-11-06 11:46:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 989. [2021-11-06 11:46:31,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3246887966804979) internal successors, (1277), 988 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:31,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1277 transitions. [2021-11-06 11:46:31,796 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1277 transitions. Word has length 42 [2021-11-06 11:46:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:31,796 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1277 transitions. [2021-11-06 11:46:31,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1277 transitions. [2021-11-06 11:46:31,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 11:46:31,799 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:31,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:31,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:32,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:32,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:32,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:32,009 INFO L85 PathProgramCache]: Analyzing trace with hash 268775359, now seen corresponding path program 1 times [2021-11-06 11:46:32,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:32,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246700517] [2021-11-06 11:46:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:32,015 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:32,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:32,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:32,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-06 11:46:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:34,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:46:34,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:34,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:35,079 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:35,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246700517] [2021-11-06 11:46:35,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246700517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:35,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:35,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-06 11:46:35,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320404531] [2021-11-06 11:46:35,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:46:35,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:46:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:46:35,082 INFO L87 Difference]: Start difference. First operand 989 states and 1277 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:35,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:35,350 INFO L93 Difference]: Finished difference Result 2111 states and 2719 transitions. [2021-11-06 11:46:35,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:46:35,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 11:46:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:35,362 INFO L225 Difference]: With dead ends: 2111 [2021-11-06 11:46:35,363 INFO L226 Difference]: Without dead ends: 1202 [2021-11-06 11:46:35,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:46:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-06 11:46:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 989. [2021-11-06 11:46:35,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3215767634854771) internal successors, (1274), 988 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1274 transitions. [2021-11-06 11:46:35,410 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1274 transitions. Word has length 42 [2021-11-06 11:46:35,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:35,411 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1274 transitions. [2021-11-06 11:46:35,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:35,412 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1274 transitions. [2021-11-06 11:46:35,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 11:46:35,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:35,421 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:35,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:35,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:35,640 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:35,640 INFO L85 PathProgramCache]: Analyzing trace with hash 82325853, now seen corresponding path program 1 times [2021-11-06 11:46:35,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:35,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368207024] [2021-11-06 11:46:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:35,644 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:35,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:35,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:35,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-06 11:46:37,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:38,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 11:46:38,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:38,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:38,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:38,769 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:38,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368207024] [2021-11-06 11:46:38,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368207024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:38,770 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:38,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 11:46:38,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666408635] [2021-11-06 11:46:38,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:46:38,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:38,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:46:38,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:46:38,771 INFO L87 Difference]: Start difference. First operand 989 states and 1274 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:41,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:41,820 INFO L93 Difference]: Finished difference Result 2206 states and 2835 transitions. [2021-11-06 11:46:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:46:41,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 11:46:41,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:41,829 INFO L225 Difference]: With dead ends: 2206 [2021-11-06 11:46:41,829 INFO L226 Difference]: Without dead ends: 1265 [2021-11-06 11:46:41,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:46:41,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2021-11-06 11:46:41,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 989. [2021-11-06 11:46:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3184647302904564) internal successors, (1271), 988 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:41,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1271 transitions. [2021-11-06 11:46:41,864 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1271 transitions. Word has length 50 [2021-11-06 11:46:41,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:41,865 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1271 transitions. [2021-11-06 11:46:41,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:41,865 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1271 transitions. [2021-11-06 11:46:41,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 11:46:41,866 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:41,866 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:41,919 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:42,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:42,080 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:42,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:42,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1376076053, now seen corresponding path program 1 times [2021-11-06 11:46:42,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:42,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674298172] [2021-11-06 11:46:42,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:42,083 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:42,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:42,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:42,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-06 11:46:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:44,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 11:46:44,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:45,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:45,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:45,486 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:45,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674298172] [2021-11-06 11:46:45,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1674298172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:45,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:45,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 11:46:45,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089552287] [2021-11-06 11:46:45,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:46:45,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:46:45,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:46:45,488 INFO L87 Difference]: Start difference. First operand 989 states and 1271 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:46,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:46,177 INFO L93 Difference]: Finished difference Result 2802 states and 3579 transitions. [2021-11-06 11:46:46,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:46:46,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 11:46:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:46,186 INFO L225 Difference]: With dead ends: 2802 [2021-11-06 11:46:46,186 INFO L226 Difference]: Without dead ends: 1892 [2021-11-06 11:46:46,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:46:46,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2021-11-06 11:46:46,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 989. [2021-11-06 11:46:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.3153526970954357) internal successors, (1268), 988 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1268 transitions. [2021-11-06 11:46:46,229 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1268 transitions. Word has length 66 [2021-11-06 11:46:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:46,229 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1268 transitions. [2021-11-06 11:46:46,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1268 transitions. [2021-11-06 11:46:46,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:46:46,231 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:46,231 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:46,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:46,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:46,447 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:46,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:46,448 INFO L85 PathProgramCache]: Analyzing trace with hash 726765177, now seen corresponding path program 1 times [2021-11-06 11:46:46,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:46,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913516543] [2021-11-06 11:46:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:46,451 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:46,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:46,452 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:46,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-06 11:46:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:49,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:46:49,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:49,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:50,243 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:50,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913516543] [2021-11-06 11:46:50,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913516543] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:50,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:50,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-06 11:46:50,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10114518] [2021-11-06 11:46:50,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 11:46:50,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:50,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 11:46:50,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:46:50,245 INFO L87 Difference]: Start difference. First operand 989 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:54,773 INFO L93 Difference]: Finished difference Result 3878 states and 4916 transitions. [2021-11-06 11:46:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 11:46:54,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-06 11:46:54,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:54,785 INFO L225 Difference]: With dead ends: 3878 [2021-11-06 11:46:54,786 INFO L226 Difference]: Without dead ends: 2952 [2021-11-06 11:46:54,790 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-06 11:46:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-11-06 11:46:54,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 989. [2021-11-06 11:46:54,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 988 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:54,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1265 transitions. [2021-11-06 11:46:54,842 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1265 transitions. Word has length 90 [2021-11-06 11:46:54,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:54,842 INFO L470 AbstractCegarLoop]: Abstraction has 989 states and 1265 transitions. [2021-11-06 11:46:54,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1265 transitions. [2021-11-06 11:46:54,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 11:46:54,847 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:54,847 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:54,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:55,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:55,068 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1774462527, now seen corresponding path program 1 times [2021-11-06 11:46:55,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:55,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028982035] [2021-11-06 11:46:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:55,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:55,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:55,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-06 11:46:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:46:57,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 1711 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:46:57,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:46:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:58,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:46:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:46:58,790 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:46:58,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028982035] [2021-11-06 11:46:58,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028982035] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:46:58,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:46:58,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 11:46:58,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442902024] [2021-11-06 11:46:58,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:46:58,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:46:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:46:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:46:58,792 INFO L87 Difference]: Start difference. First operand 989 states and 1265 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:59,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:46:59,483 INFO L93 Difference]: Finished difference Result 2732 states and 3487 transitions. [2021-11-06 11:46:59,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:46:59,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-06 11:46:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:46:59,489 INFO L225 Difference]: With dead ends: 2732 [2021-11-06 11:46:59,490 INFO L226 Difference]: Without dead ends: 1821 [2021-11-06 11:46:59,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:46:59,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2021-11-06 11:46:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1025. [2021-11-06 11:46:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.313) internal successors, (1313), 1024 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:59,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1313 transitions. [2021-11-06 11:46:59,536 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1313 transitions. Word has length 106 [2021-11-06 11:46:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:46:59,538 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1313 transitions. [2021-11-06 11:46:59,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:46:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1313 transitions. [2021-11-06 11:46:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 11:46:59,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:46:59,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:46:59,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-06 11:46:59,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:46:59,741 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:46:59,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:46:59,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1841232515, now seen corresponding path program 1 times [2021-11-06 11:46:59,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:46:59,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726322481] [2021-11-06 11:46:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:46:59,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:46:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:46:59,747 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:46:59,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-06 11:47:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:47:02,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:47:02,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:47:03,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:47:03,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:47:03,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:47:03,929 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:47:03,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726322481] [2021-11-06 11:47:03,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726322481] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:47:03,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:47:03,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-06 11:47:03,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956548534] [2021-11-06 11:47:03,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 11:47:03,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:47:03,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 11:47:03,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:47:03,931 INFO L87 Difference]: Start difference. First operand 1025 states and 1313 transitions. Second operand has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:47:29,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:47:29,545 INFO L93 Difference]: Finished difference Result 2737 states and 3490 transitions. [2021-11-06 11:47:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 11:47:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-06 11:47:29,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:47:29,557 INFO L225 Difference]: With dead ends: 2737 [2021-11-06 11:47:29,557 INFO L226 Difference]: Without dead ends: 1787 [2021-11-06 11:47:29,560 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:47:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2021-11-06 11:47:29,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1025. [2021-11-06 11:47:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 1000 states have (on average 1.307) internal successors, (1307), 1024 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:47:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1307 transitions. [2021-11-06 11:47:29,646 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1307 transitions. Word has length 106 [2021-11-06 11:47:29,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:47:29,646 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1307 transitions. [2021-11-06 11:47:29,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:47:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1307 transitions. [2021-11-06 11:47:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 11:47:29,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:47:29,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:47:29,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-06 11:47:29,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:47:29,868 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:47:29,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:47:29,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1225407999, now seen corresponding path program 1 times [2021-11-06 11:47:29,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:47:29,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579723745] [2021-11-06 11:47:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:47:29,872 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:47:29,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:47:29,873 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:47:29,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-06 11:47:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:47:32,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1710 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:47:32,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:47:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:47:33,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:47:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:47:34,377 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:47:34,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579723745] [2021-11-06 11:47:34,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579723745] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:47:34,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:47:34,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2021-11-06 11:47:34,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981906812] [2021-11-06 11:47:34,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 11:47:34,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:47:34,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 11:47:34,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-06 11:47:34,379 INFO L87 Difference]: Start difference. First operand 1025 states and 1307 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:48:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:48:05,991 INFO L93 Difference]: Finished difference Result 2743 states and 3484 transitions. [2021-11-06 11:48:05,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-06 11:48:05,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-06 11:48:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:48:05,999 INFO L225 Difference]: With dead ends: 2743 [2021-11-06 11:48:06,000 INFO L226 Difference]: Without dead ends: 1793 [2021-11-06 11:48:06,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-06 11:48:06,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2021-11-06 11:48:06,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1037. [2021-11-06 11:48:06,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1037 states, 1012 states have (on average 1.2974308300395256) internal successors, (1313), 1036 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:48:06,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1313 transitions. [2021-11-06 11:48:06,053 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1313 transitions. Word has length 106 [2021-11-06 11:48:06,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:48:06,054 INFO L470 AbstractCegarLoop]: Abstraction has 1037 states and 1313 transitions. [2021-11-06 11:48:06,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:48:06,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1313 transitions. [2021-11-06 11:48:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 11:48:06,055 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:48:06,055 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:48:06,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-06 11:48:06,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:48:06,276 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:48:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:48:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash -335007621, now seen corresponding path program 1 times [2021-11-06 11:48:06,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:48:06,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579896328] [2021-11-06 11:48:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:48:06,280 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:48:06,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:48:06,284 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:48:06,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-06 11:48:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:48:09,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1704 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-06 11:48:09,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:48:10,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-06 11:48:10,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-06 11:48:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:48:11,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:48:14,063 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:48:14,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-06 11:48:14,133 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-06 11:48:14,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-06 11:48:14,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:48:14,676 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:48:14,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579896328] [2021-11-06 11:48:14,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579896328] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:48:14,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:48:14,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2021-11-06 11:48:14,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696110364] [2021-11-06 11:48:14,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 11:48:14,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:48:14,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 11:48:14,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-06 11:48:14,678 INFO L87 Difference]: Start difference. First operand 1037 states and 1313 transitions. Second operand has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:14,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:14,767 INFO L93 Difference]: Finished difference Result 6077 states and 7672 transitions. [2021-11-06 11:49:14,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-06 11:49:14,769 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-11-06 11:49:14,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:14,788 INFO L225 Difference]: With dead ends: 6077 [2021-11-06 11:49:14,789 INFO L226 Difference]: Without dead ends: 5144 [2021-11-06 11:49:14,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=188, Invalid=514, Unknown=0, NotChecked=0, Total=702 [2021-11-06 11:49:14,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-11-06 11:49:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 1045. [2021-11-06 11:49:14,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1020 states have (on average 1.2950980392156863) internal successors, (1321), 1044 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:14,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1321 transitions. [2021-11-06 11:49:14,891 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1321 transitions. Word has length 106 [2021-11-06 11:49:14,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:14,892 INFO L470 AbstractCegarLoop]: Abstraction has 1045 states and 1321 transitions. [2021-11-06 11:49:14,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.181818181818182) internal successors, (112), 11 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:14,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1321 transitions. [2021-11-06 11:49:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-06 11:49:14,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:14,893 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:14,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-06 11:49:15,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:15,108 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:15,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1027709372, now seen corresponding path program 1 times [2021-11-06 11:49:15,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:15,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248211881] [2021-11-06 11:49:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:15,112 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:15,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:15,113 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:15,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-06 11:49:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:18,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1706 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 11:49:18,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:18,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:18,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:18,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:18,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248211881] [2021-11-06 11:49:18,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248211881] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:18,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:18,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-06 11:49:18,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393480809] [2021-11-06 11:49:18,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:49:18,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:49:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:49:18,875 INFO L87 Difference]: Start difference. First operand 1045 states and 1321 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:19,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:19,039 INFO L93 Difference]: Finished difference Result 2193 states and 2783 transitions. [2021-11-06 11:49:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:49:19,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-06 11:49:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:19,046 INFO L225 Difference]: With dead ends: 2193 [2021-11-06 11:49:19,047 INFO L226 Difference]: Without dead ends: 2055 [2021-11-06 11:49:19,048 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:49:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-11-06 11:49:19,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1050. [2021-11-06 11:49:19,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.293658536585366) internal successors, (1326), 1049 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:19,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1326 transitions. [2021-11-06 11:49:19,113 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1326 transitions. Word has length 108 [2021-11-06 11:49:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:19,114 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1326 transitions. [2021-11-06 11:49:19,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1326 transitions. [2021-11-06 11:49:19,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-06 11:49:19,115 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:19,116 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:19,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-06 11:49:19,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:19,338 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:19,339 INFO L85 PathProgramCache]: Analyzing trace with hash 64676664, now seen corresponding path program 1 times [2021-11-06 11:49:19,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:19,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789249069] [2021-11-06 11:49:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:19,342 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:19,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:19,343 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:19,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-06 11:49:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:22,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1708 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 11:49:22,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:23,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:24,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:24,574 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:24,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789249069] [2021-11-06 11:49:24,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789249069] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:24,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:24,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 11:49:24,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367498944] [2021-11-06 11:49:24,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:49:24,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:24,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:49:24,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:49:24,576 INFO L87 Difference]: Start difference. First operand 1050 states and 1326 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:24,977 INFO L93 Difference]: Finished difference Result 2136 states and 2704 transitions. [2021-11-06 11:49:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:49:24,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-06 11:49:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:24,983 INFO L225 Difference]: With dead ends: 2136 [2021-11-06 11:49:24,983 INFO L226 Difference]: Without dead ends: 1264 [2021-11-06 11:49:24,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:49:24,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2021-11-06 11:49:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 1050. [2021-11-06 11:49:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2917073170731708) internal successors, (1324), 1049 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1324 transitions. [2021-11-06 11:49:25,051 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1324 transitions. Word has length 110 [2021-11-06 11:49:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:25,051 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1324 transitions. [2021-11-06 11:49:25,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1324 transitions. [2021-11-06 11:49:25,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-06 11:49:25,053 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:25,053 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:25,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-06 11:49:25,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:25,275 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:25,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:25,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2058054553, now seen corresponding path program 1 times [2021-11-06 11:49:25,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:25,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221367323] [2021-11-06 11:49:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:25,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:25,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:25,280 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:25,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-06 11:49:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:28,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:49:28,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:29,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:29,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:30,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:30,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221367323] [2021-11-06 11:49:30,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221367323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:30,695 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:30,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-06 11:49:30,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115899774] [2021-11-06 11:49:30,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:49:30,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:30,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:49:30,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:49:30,696 INFO L87 Difference]: Start difference. First operand 1050 states and 1324 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:33,818 INFO L93 Difference]: Finished difference Result 2176 states and 2748 transitions. [2021-11-06 11:49:33,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 11:49:33,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-06 11:49:33,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:33,824 INFO L225 Difference]: With dead ends: 2176 [2021-11-06 11:49:33,824 INFO L226 Difference]: Without dead ends: 1304 [2021-11-06 11:49:33,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:49:33,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2021-11-06 11:49:33,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1050. [2021-11-06 11:49:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2878048780487805) internal successors, (1320), 1049 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:33,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1320 transitions. [2021-11-06 11:49:33,888 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1320 transitions. Word has length 114 [2021-11-06 11:49:33,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:33,889 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1320 transitions. [2021-11-06 11:49:33,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:33,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1320 transitions. [2021-11-06 11:49:33,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-06 11:49:33,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:33,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:33,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-06 11:49:34,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:34,112 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:34,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1877694083, now seen corresponding path program 1 times [2021-11-06 11:49:34,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:34,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244511106] [2021-11-06 11:49:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:34,115 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:34,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:34,117 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:34,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-06 11:49:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:37,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:49:37,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:38,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:39,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:39,912 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:39,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244511106] [2021-11-06 11:49:39,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244511106] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:39,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:39,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-06 11:49:39,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92449600] [2021-11-06 11:49:39,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:49:39,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:49:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:49:39,913 INFO L87 Difference]: Start difference. First operand 1050 states and 1320 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:40,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:40,852 INFO L93 Difference]: Finished difference Result 2416 states and 3043 transitions. [2021-11-06 11:49:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 11:49:40,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-06 11:49:40,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:40,857 INFO L225 Difference]: With dead ends: 2416 [2021-11-06 11:49:40,857 INFO L226 Difference]: Without dead ends: 1544 [2021-11-06 11:49:40,859 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:49:40,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-11-06 11:49:40,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1050. [2021-11-06 11:49:40,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2858536585365854) internal successors, (1318), 1049 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1318 transitions. [2021-11-06 11:49:40,916 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1318 transitions. Word has length 122 [2021-11-06 11:49:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:40,916 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1318 transitions. [2021-11-06 11:49:40,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1318 transitions. [2021-11-06 11:49:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-06 11:49:40,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:40,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:41,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-06 11:49:41,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:41,132 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1389825570, now seen corresponding path program 1 times [2021-11-06 11:49:41,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:41,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443266759] [2021-11-06 11:49:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:41,135 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:41,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:41,137 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:41,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-06 11:49:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:45,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-06 11:49:45,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:46,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:46,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:47,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:47,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:47,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [443266759] [2021-11-06 11:49:47,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [443266759] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:47,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:47,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-06 11:49:47,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491256806] [2021-11-06 11:49:47,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 11:49:47,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:47,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 11:49:47,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:49:47,628 INFO L87 Difference]: Start difference. First operand 1050 states and 1318 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:51,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:49:51,127 INFO L93 Difference]: Finished difference Result 2191 states and 2762 transitions. [2021-11-06 11:49:51,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 11:49:51,128 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-06 11:49:51,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:49:51,131 INFO L225 Difference]: With dead ends: 2191 [2021-11-06 11:49:51,132 INFO L226 Difference]: Without dead ends: 1319 [2021-11-06 11:49:51,133 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2021-11-06 11:49:51,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2021-11-06 11:49:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1050. [2021-11-06 11:49:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.278048780487805) internal successors, (1310), 1049 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:51,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1310 transitions. [2021-11-06 11:49:51,185 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1310 transitions. Word has length 129 [2021-11-06 11:49:51,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:49:51,185 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1310 transitions. [2021-11-06 11:49:51,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 12 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:49:51,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1310 transitions. [2021-11-06 11:49:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-06 11:49:51,186 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:49:51,186 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:49:51,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-06 11:49:51,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:49:51,397 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:49:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:49:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash 49364914, now seen corresponding path program 1 times [2021-11-06 11:49:51,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:49:51,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729369959] [2021-11-06 11:49:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:49:51,400 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:49:51,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:49:51,401 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:49:51,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-06 11:49:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:49:55,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 1807 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-06 11:49:55,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:49:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:56,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:49:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:49:57,129 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:49:57,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729369959] [2021-11-06 11:49:57,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729369959] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:49:57,129 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:49:57,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-06 11:49:57,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53284727] [2021-11-06 11:49:57,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:49:57,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:49:57,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:49:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:49:57,131 INFO L87 Difference]: Start difference. First operand 1050 states and 1310 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:00,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:50:00,884 INFO L93 Difference]: Finished difference Result 2418 states and 3009 transitions. [2021-11-06 11:50:00,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-06 11:50:00,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-11-06 11:50:00,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:50:00,889 INFO L225 Difference]: With dead ends: 2418 [2021-11-06 11:50:00,890 INFO L226 Difference]: Without dead ends: 1546 [2021-11-06 11:50:00,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-11-06 11:50:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2021-11-06 11:50:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1050. [2021-11-06 11:50:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1025 states have (on average 1.2760975609756098) internal successors, (1308), 1049 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1308 transitions. [2021-11-06 11:50:00,943 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1308 transitions. Word has length 134 [2021-11-06 11:50:00,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:50:00,943 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1308 transitions. [2021-11-06 11:50:00,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:00,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1308 transitions. [2021-11-06 11:50:00,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-11-06 11:50:00,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:50:00,945 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:50:01,003 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-06 11:50:01,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:50:01,159 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:50:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:50:01,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1959022358, now seen corresponding path program 1 times [2021-11-06 11:50:01,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:50:01,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [121704682] [2021-11-06 11:50:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:50:01,163 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:50:01,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:50:01,164 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:50:01,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-06 11:50:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:50:24,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:50:24,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:50:24,687 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-06 11:50:24,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 12 [2021-11-06 11:50:25,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:50:25,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:50:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:50:25,909 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:50:25,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [121704682] [2021-11-06 11:50:25,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [121704682] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:50:25,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:50:25,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-06 11:50:25,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489553832] [2021-11-06 11:50:25,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 11:50:25,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:50:25,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 11:50:25,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-06 11:50:25,911 INFO L87 Difference]: Start difference. First operand 1050 states and 1308 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:51,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:50:51,191 INFO L93 Difference]: Finished difference Result 3120 states and 3901 transitions. [2021-11-06 11:50:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 11:50:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 142 [2021-11-06 11:50:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:50:51,199 INFO L225 Difference]: With dead ends: 3120 [2021-11-06 11:50:51,199 INFO L226 Difference]: Without dead ends: 2182 [2021-11-06 11:50:51,201 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:50:51,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2182 states. [2021-11-06 11:50:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2182 to 1052. [2021-11-06 11:50:51,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 1027 states have (on average 1.2755598831548198) internal successors, (1310), 1051 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1310 transitions. [2021-11-06 11:50:51,264 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1310 transitions. Word has length 142 [2021-11-06 11:50:51,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:50:51,265 INFO L470 AbstractCegarLoop]: Abstraction has 1052 states and 1310 transitions. [2021-11-06 11:50:51,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 9 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1310 transitions. [2021-11-06 11:50:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-06 11:50:51,266 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:50:51,266 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:50:51,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-06 11:50:51,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:50:51,478 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:50:51,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:50:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash -561623017, now seen corresponding path program 1 times [2021-11-06 11:50:51,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:50:51,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875097565] [2021-11-06 11:50:51,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:50:51,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:50:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:50:51,483 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:50:51,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-06 11:50:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:50:54,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1873 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-06 11:50:54,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:50:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:50:55,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:50:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:50:56,012 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:50:56,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875097565] [2021-11-06 11:50:56,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875097565] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:50:56,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:50:56,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-06 11:50:56,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156721810] [2021-11-06 11:50:56,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:50:56,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:50:56,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:50:56,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:50:56,013 INFO L87 Difference]: Start difference. First operand 1052 states and 1310 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:56,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:50:56,724 INFO L93 Difference]: Finished difference Result 3890 states and 4851 transitions. [2021-11-06 11:50:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:50:56,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-06 11:50:56,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:50:56,731 INFO L225 Difference]: With dead ends: 3890 [2021-11-06 11:50:56,732 INFO L226 Difference]: Without dead ends: 2930 [2021-11-06 11:50:56,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:50:56,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-11-06 11:50:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 1100. [2021-11-06 11:50:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1075 states have (on average 1.2744186046511627) internal successors, (1370), 1099 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1370 transitions. [2021-11-06 11:50:56,806 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1370 transitions. Word has length 143 [2021-11-06 11:50:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:50:56,806 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1370 transitions. [2021-11-06 11:50:56,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:50:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1370 transitions. [2021-11-06 11:50:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-06 11:50:56,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:50:56,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:50:56,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-06 11:50:57,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:50:57,028 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:50:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:50:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1417729843, now seen corresponding path program 1 times [2021-11-06 11:50:57,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:50:57,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690965970] [2021-11-06 11:50:57,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:50:57,031 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:50:57,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:50:57,032 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:50:57,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-06 11:51:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:51:00,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1875 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-06 11:51:00,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:51:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:51:01,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:51:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:51:01,631 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:51:01,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690965970] [2021-11-06 11:51:01,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690965970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 11:51:01,631 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:51:01,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-06 11:51:01,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558703106] [2021-11-06 11:51:01,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:51:01,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:51:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:51:01,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:51:01,632 INFO L87 Difference]: Start difference. First operand 1100 states and 1370 transitions. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:03,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:51:03,817 INFO L93 Difference]: Finished difference Result 4072 states and 5041 transitions. [2021-11-06 11:51:03,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-06 11:51:03,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-06 11:51:03,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:51:03,825 INFO L225 Difference]: With dead ends: 4072 [2021-11-06 11:51:03,825 INFO L226 Difference]: Without dead ends: 3059 [2021-11-06 11:51:03,827 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-11-06 11:51:03,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2021-11-06 11:51:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 1100. [2021-11-06 11:51:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 1075 states have (on average 1.2688372093023257) internal successors, (1364), 1099 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1364 transitions. [2021-11-06 11:51:03,912 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1364 transitions. Word has length 143 [2021-11-06 11:51:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:51:03,913 INFO L470 AbstractCegarLoop]: Abstraction has 1100 states and 1364 transitions. [2021-11-06 11:51:03,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:03,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1364 transitions. [2021-11-06 11:51:03,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 11:51:03,914 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:51:03,914 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:51:03,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-06 11:51:04,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:51:04,120 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:51:04,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:51:04,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1417265175, now seen corresponding path program 1 times [2021-11-06 11:51:04,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:51:04,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2058928453] [2021-11-06 11:51:04,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:51:04,123 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:51:04,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:51:04,124 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:51:04,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-06 11:51:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:51:07,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-06 11:51:07,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:51:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:51:08,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 11:51:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:51:09,419 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 11:51:09,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2058928453] [2021-11-06 11:51:09,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2058928453] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-06 11:51:09,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-06 11:51:09,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-06 11:51:09,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294263345] [2021-11-06 11:51:09,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 11:51:09,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 11:51:09,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 11:51:09,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 11:51:09,421 INFO L87 Difference]: Start difference. First operand 1100 states and 1364 transitions. Second operand has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:14,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:51:14,074 INFO L93 Difference]: Finished difference Result 7234 states and 9008 transitions. [2021-11-06 11:51:14,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 11:51:14,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2021-11-06 11:51:14,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:51:14,086 INFO L225 Difference]: With dead ends: 7234 [2021-11-06 11:51:14,086 INFO L226 Difference]: Without dead ends: 6230 [2021-11-06 11:51:14,089 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:51:14,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6230 states. [2021-11-06 11:51:14,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6230 to 1244. [2021-11-06 11:51:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 1219 states have (on average 1.2666119770303528) internal successors, (1544), 1243 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1544 transitions. [2021-11-06 11:51:14,203 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1544 transitions. Word has length 149 [2021-11-06 11:51:14,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:51:14,203 INFO L470 AbstractCegarLoop]: Abstraction has 1244 states and 1544 transitions. [2021-11-06 11:51:14,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.625) internal successors, (157), 8 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:51:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1544 transitions. [2021-11-06 11:51:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 11:51:14,204 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:51:14,204 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:51:14,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-06 11:51:14,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 11:51:14,406 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 22 more)] === [2021-11-06 11:51:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:51:14,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1984145373, now seen corresponding path program 1 times [2021-11-06 11:51:14,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 11:51:14,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287597220] [2021-11-06 11:51:14,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:51:14,409 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 11:51:14,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 11:51:14,410 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 11:51:14,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process Killed by 15