./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_string_new_from_array_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 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:47:13,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:47:13,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:47:13,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:47:13,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:47:13,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:47:13,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:47:13,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:47:13,659 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:47:13,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:47:13,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:47:13,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:47:13,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:47:13,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:47:13,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:47:13,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:47:13,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:47:13,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:47:13,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:47:13,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:47:13,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:47:13,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:47:13,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:47:13,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:47:13,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:47:13,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:47:13,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:47:13,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:47:13,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:47:13,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:47:13,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:47:13,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:47:13,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:47:13,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:47:13,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:47:13,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:47:13,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:47:13,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:47:13,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:47:13,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:47:13,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:47:13,695 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:47:13,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:47:13,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:47:13,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:47:13,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:47:13,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:47:13,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:47:13,718 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:47:13,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:47:13,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:47:13,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:47:13,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:47:13,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:47:13,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:47:13,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:47:13,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:47:13,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:47:13,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:47:13,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:47:13,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:47:13,737 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:47:13,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:47:13,737 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:47:13,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:47:13,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 364b54724e976c015f9881f66521e5c6d863e13e3a8324ac15c0186b650523fa [2021-11-05 13:47:14,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:47:14,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:47:14,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:47:14,033 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:47:14,034 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:47:14,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-05 13:47:14,096 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2cfeceb/a8e809b294404a98946fdce6eb3c60bf/FLAG26b2c5b64 [2021-11-05 13:47:14,717 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:47:14,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_string_new_from_array_harness.i [2021-11-05 13:47:14,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2cfeceb/a8e809b294404a98946fdce6eb3c60bf/FLAG26b2c5b64 [2021-11-05 13:47:14,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a2cfeceb/a8e809b294404a98946fdce6eb3c60bf [2021-11-05 13:47:14,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:47:14,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:47:14,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:47:14,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:47:14,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:47:14,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:47:14" (1/1) ... [2021-11-05 13:47:14,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@519e4e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:14, skipping insertion in model container [2021-11-05 13:47:14,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:47:14" (1/1) ... [2021-11-05 13:47:14,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:47:14,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:47:15,161 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_string_new_from_array_harness.i[4499,4512] [2021-11-05 13:47:15,167 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_string_new_from_array_harness.i[4559,4572] [2021-11-05 13:47:15,199 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:47:15,202 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:47:15,667 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,672 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,673 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,674 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,681 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,689 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,690 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:15,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:47:15,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:47:15,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:47:15,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:47:15,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:47:15,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:47:15,901 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:47:15,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:47:15,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:47:15,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:47:16,014 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:47:16,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,088 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:47:16,186 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:47:16,208 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_string_new_from_array_harness.i[4499,4512] [2021-11-05 13:47:16,209 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_string_new_from_array_harness.i[4559,4572] [2021-11-05 13:47:16,210 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:47:16,210 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:47:16,234 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,235 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,236 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,237 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,246 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,247 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:47:16,278 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:47:16,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:47:16,279 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:47:16,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:47:16,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:47:16,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:47:16,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:47:16,281 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:47:16,282 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:47:16,293 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:47:16,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,352 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:47:16,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:47:16,623 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:47:16,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16 WrapperNode [2021-11-05 13:47:16,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:47:16,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:47:16,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:47:16,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:47:16,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:47:16,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:47:16,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:47:16,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:47:16,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:47:16,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:47:16,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:47:16,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:47:16,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (1/1) ... [2021-11-05 13:47:16,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:47:16,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:47:16,949 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) [2021-11-05 13:47:16,964 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 [2021-11-05 13:47:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:47:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-11-05 13:47:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 13:47:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 13:47:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:47:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 13:47:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 13:47:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:47:16,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:47:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 13:47:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 13:47:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 13:47:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:47:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:47:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 13:47:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-11-05 13:47:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:47:23,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !true; [2021-11-05 13:47:23,969 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:47:23,969 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-11-05 13:47:23,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:47:23 BoogieIcfgContainer [2021-11-05 13:47:23,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:47:23,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:47:23,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:47:23,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:47:23,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:47:14" (1/3) ... [2021-11-05 13:47:23,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5530d506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:47:23, skipping insertion in model container [2021-11-05 13:47:23,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:47:16" (2/3) ... [2021-11-05 13:47:23,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5530d506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:47:23, skipping insertion in model container [2021-11-05 13:47:23,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:47:23" (3/3) ... [2021-11-05 13:47:23,976 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_array_harness.i [2021-11-05 13:47:23,979 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:47:23,979 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-05 13:47:24,006 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:47:24,010 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 [2021-11-05 13:47:24,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-05 13:47:24,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:24,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 13:47:24,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:24,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:24,023 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:24,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash -2112400035, now seen corresponding path program 1 times [2021-11-05 13:47:24,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:24,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194350188] [2021-11-05 13:47:24,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:24,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:24,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:24,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194350188] [2021-11-05 13:47:24,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194350188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:24,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:24,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:47:24,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255876687] [2021-11-05 13:47:24,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:24,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:47:24,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:24,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:47:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:47:24,564 INFO L87 Difference]: Start difference. First operand has 91 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 90 states have internal predecessors, (119), 0 states have call successors, (0), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:24,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:24,604 INFO L93 Difference]: Finished difference Result 177 states and 232 transitions. [2021-11-05 13:47:24,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:47:24,606 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-11-05 13:47:24,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:24,611 INFO L225 Difference]: With dead ends: 177 [2021-11-05 13:47:24,611 INFO L226 Difference]: Without dead ends: 85 [2021-11-05 13:47:24,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:47:24,618 INFO L933 BasicCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:24,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:47:24,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-05 13:47:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-05 13:47:24,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.2151898734177216) internal successors, (96), 84 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2021-11-05 13:47:24,653 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 25 [2021-11-05 13:47:24,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:24,654 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2021-11-05 13:47:24,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:24,654 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2021-11-05 13:47:24,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 13:47:24,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:24,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:24,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:47:24,658 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:24,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1235816865, now seen corresponding path program 1 times [2021-11-05 13:47:24,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:24,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218881485] [2021-11-05 13:47:24,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:24,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:24,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:24,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218881485] [2021-11-05 13:47:24,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218881485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:24,964 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:24,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:47:24,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042849298] [2021-11-05 13:47:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:24,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:47:24,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:47:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:47:24,965 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:25,100 INFO L93 Difference]: Finished difference Result 180 states and 203 transitions. [2021-11-05 13:47:25,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:47:25,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2021-11-05 13:47:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:25,104 INFO L225 Difference]: With dead ends: 180 [2021-11-05 13:47:25,105 INFO L226 Difference]: Without dead ends: 150 [2021-11-05 13:47:25,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 133.83ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:47:25,107 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 145 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.92ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.87ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:25,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 433 Invalid, 16 Unknown, 0 Unchecked, 3.92ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 48.87ms Time] [2021-11-05 13:47:25,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-05 13:47:25,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 88. [2021-11-05 13:47:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.2073170731707317) internal successors, (99), 87 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2021-11-05 13:47:25,120 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 25 [2021-11-05 13:47:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:25,120 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2021-11-05 13:47:25,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2021-11-05 13:47:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:47:25,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:25,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:25,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:47:25,122 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:25,122 INFO L85 PathProgramCache]: Analyzing trace with hash 293799461, now seen corresponding path program 1 times [2021-11-05 13:47:25,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:25,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560536987] [2021-11-05 13:47:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:25,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:25,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:25,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560536987] [2021-11-05 13:47:25,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560536987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:25,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:25,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:47:25,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545896021] [2021-11-05 13:47:25,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:25,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:47:25,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:47:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:47:25,369 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:25,451 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2021-11-05 13:47:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:47:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 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 27 [2021-11-05 13:47:25,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:25,453 INFO L225 Difference]: With dead ends: 118 [2021-11-05 13:47:25,453 INFO L226 Difference]: Without dead ends: 88 [2021-11-05 13:47:25,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 80.93ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:47:25,454 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.46ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:25,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 276 Invalid, 11 Unknown, 0 Unchecked, 1.15ms Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 46.46ms Time] [2021-11-05 13:47:25,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-05 13:47:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2021-11-05 13:47:25,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 84 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2021-11-05 13:47:25,460 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 27 [2021-11-05 13:47:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:25,460 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2021-11-05 13:47:25,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2021-11-05 13:47:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-05 13:47:25,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:25,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:25,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:47:25,462 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:25,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:25,462 INFO L85 PathProgramCache]: Analyzing trace with hash 659600795, now seen corresponding path program 1 times [2021-11-05 13:47:25,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:25,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851075634] [2021-11-05 13:47:25,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:25,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:25,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:25,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851075634] [2021-11-05 13:47:25,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851075634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:25,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:25,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 13:47:25,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837967052] [2021-11-05 13:47:25,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:25,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 13:47:25,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:25,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 13:47:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:47:25,741 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:25,846 INFO L93 Difference]: Finished difference Result 228 states and 256 transitions. [2021-11-05 13:47:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:47:25,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2021-11-05 13:47:25,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:25,848 INFO L225 Difference]: With dead ends: 228 [2021-11-05 13:47:25,848 INFO L226 Difference]: Without dead ends: 182 [2021-11-05 13:47:25,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 109.93ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:47:25,849 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 165 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.36ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.54ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:25,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 405 Invalid, 20 Unknown, 0 Unchecked, 2.36ms Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 65.54ms Time] [2021-11-05 13:47:25,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-05 13:47:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 88. [2021-11-05 13:47:25,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 87 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2021-11-05 13:47:25,854 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 46 [2021-11-05 13:47:25,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:25,855 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2021-11-05 13:47:25,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2021-11-05 13:47:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 13:47:25,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:25,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:25,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 13:47:25,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:25,857 INFO L85 PathProgramCache]: Analyzing trace with hash 20122135, now seen corresponding path program 1 times [2021-11-05 13:47:25,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:25,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265998377] [2021-11-05 13:47:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:25,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:25,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:26,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:26,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265998377] [2021-11-05 13:47:26,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265998377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:26,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:26,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 13:47:26,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20580637] [2021-11-05 13:47:26,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:26,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 13:47:26,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:26,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 13:47:26,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 13:47:26,226 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:26,609 INFO L93 Difference]: Finished difference Result 139 states and 154 transitions. [2021-11-05 13:47:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:47:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 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 48 [2021-11-05 13:47:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:26,610 INFO L225 Difference]: With dead ends: 139 [2021-11-05 13:47:26,610 INFO L226 Difference]: Without dead ends: 83 [2021-11-05 13:47:26,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 418.71ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:47:26,611 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 12 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 113.79ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:26,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 524 Invalid, 39 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 113.79ms Time] [2021-11-05 13:47:26,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-05 13:47:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-05 13:47:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 82 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) [2021-11-05 13:47:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2021-11-05 13:47:26,615 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 48 [2021-11-05 13:47:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:26,615 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2021-11-05 13:47:26,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:26,615 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2021-11-05 13:47:26,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 13:47:26,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:26,616 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:26,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 13:47:26,616 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:26,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:26,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1019144308, now seen corresponding path program 1 times [2021-11-05 13:47:26,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:26,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451106828] [2021-11-05 13:47:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:26,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:26,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:26,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451106828] [2021-11-05 13:47:26,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451106828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:26,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:26,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:47:26,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082567781] [2021-11-05 13:47:26,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:26,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:47:26,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:26,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:47:26,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:47:26,865 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:26,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:26,976 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2021-11-05 13:47:26,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:47:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 13:47:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:26,978 INFO L225 Difference]: With dead ends: 127 [2021-11-05 13:47:26,978 INFO L226 Difference]: Without dead ends: 91 [2021-11-05 13:47:26,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:47:26,978 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 5 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.88ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.10ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:26,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 247 Invalid, 32 Unknown, 0 Unchecked, 0.88ms Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 84.10ms Time] [2021-11-05 13:47:26,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-05 13:47:26,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 87. [2021-11-05 13:47:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 81 states have (on average 1.1604938271604939) internal successors, (94), 86 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 94 transitions. [2021-11-05 13:47:26,982 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 94 transitions. Word has length 49 [2021-11-05 13:47:26,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:26,982 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 94 transitions. [2021-11-05 13:47:26,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:26,982 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 94 transitions. [2021-11-05 13:47:26,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 13:47:26,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:26,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:26,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 13:47:26,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:26,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1017297266, now seen corresponding path program 1 times [2021-11-05 13:47:26,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:26,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051693727] [2021-11-05 13:47:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:26,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:27,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:27,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:27,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051693727] [2021-11-05 13:47:27,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051693727] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:27,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:27,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 13:47:27,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994138887] [2021-11-05 13:47:27,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:27,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 13:47:27,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:27,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 13:47:27,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:47:27,465 INFO L87 Difference]: Start difference. First operand 87 states and 94 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:27,977 INFO L93 Difference]: Finished difference Result 125 states and 134 transitions. [2021-11-05 13:47:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 13:47:27,980 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 13:47:27,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:27,981 INFO L225 Difference]: With dead ends: 125 [2021-11-05 13:47:27,981 INFO L226 Difference]: Without dead ends: 85 [2021-11-05 13:47:27,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 534.24ms TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:47:27,982 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 323 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 187.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.56ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.32ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:27,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 389 Invalid, 77 Unknown, 0 Unchecked, 2.56ms Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 220.32ms Time] [2021-11-05 13:47:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-05 13:47:27,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-05 13:47:27,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 84 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:27,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions. [2021-11-05 13:47:27,987 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 49 [2021-11-05 13:47:27,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:27,987 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions. [2021-11-05 13:47:27,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 10 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:27,988 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions. [2021-11-05 13:47:27,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-05 13:47:27,988 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:27,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:27,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 13:47:27,989 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:27,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:27,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1500815626, now seen corresponding path program 1 times [2021-11-05 13:47:27,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:27,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603774495] [2021-11-05 13:47:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:27,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:30,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:30,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603774495] [2021-11-05 13:47:30,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603774495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:30,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:30,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-05 13:47:30,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001016065] [2021-11-05 13:47:30,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:30,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 13:47:30,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:30,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 13:47:30,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-05 13:47:30,348 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:33,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:33,235 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2021-11-05 13:47:33,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 13:47:33,236 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-05 13:47:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:33,237 INFO L225 Difference]: With dead ends: 206 [2021-11-05 13:47:33,237 INFO L226 Difference]: Without dead ends: 162 [2021-11-05 13:47:33,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3271.88ms TimeCoverageRelationStatistics Valid=216, Invalid=654, Unknown=0, NotChecked=0, Total=870 [2021-11-05 13:47:33,238 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 805 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 708.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.26ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 769.74ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:33,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [805 Valid, 561 Invalid, 193 Unknown, 0 Unchecked, 5.26ms Time], IncrementalHoareTripleChecker [30 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 769.74ms Time] [2021-11-05 13:47:33,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-05 13:47:33,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 106. [2021-11-05 13:47:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 100 states have (on average 1.12) internal successors, (112), 105 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) [2021-11-05 13:47:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2021-11-05 13:47:33,246 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 49 [2021-11-05 13:47:33,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:33,246 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2021-11-05 13:47:33,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:33,247 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2021-11-05 13:47:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-05 13:47:33,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:33,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:33,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 13:47:33,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash -30992467, now seen corresponding path program 1 times [2021-11-05 13:47:33,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:33,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406530738] [2021-11-05 13:47:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:33,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:33,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:33,919 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:33,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406530738] [2021-11-05 13:47:33,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406530738] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:47:33,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826218613] [2021-11-05 13:47:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:33,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:47:33,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:47:33,936 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) [2021-11-05 13:47:33,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 13:47:34,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:34,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-05 13:47:34,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:47:34,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:34,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:47:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:35,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826218613] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 13:47:35,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:47:35,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 6 [2021-11-05 13:47:35,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983729622] [2021-11-05 13:47:35,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:35,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:47:35,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:35,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:47:35,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:47:35,003 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2021-11-05 13:47:35,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:35,164 INFO L93 Difference]: Finished difference Result 195 states and 210 transitions. [2021-11-05 13:47:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:47:35,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 [2021-11-05 13:47:35,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:35,166 INFO L225 Difference]: With dead ends: 195 [2021-11-05 13:47:35,166 INFO L226 Difference]: Without dead ends: 152 [2021-11-05 13:47:35,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 124.32ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:47:35,169 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 46 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 146.61ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:35,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 343 Invalid, 16 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 146.61ms Time] [2021-11-05 13:47:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-05 13:47:35,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 108. [2021-11-05 13:47:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 102 states have (on average 1.1274509803921569) internal successors, (115), 107 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 115 transitions. [2021-11-05 13:47:35,187 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 115 transitions. Word has length 50 [2021-11-05 13:47:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:35,188 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 115 transitions. [2021-11-05 13:47:35,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2021-11-05 13:47:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 115 transitions. [2021-11-05 13:47:35,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 13:47:35,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:35,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:35,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 13:47:35,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:47:35,400 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:35,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1734719090, now seen corresponding path program 1 times [2021-11-05 13:47:35,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:35,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819440399] [2021-11-05 13:47:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:35,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:35,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:35,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:35,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819440399] [2021-11-05 13:47:35,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819440399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:47:35,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:47:35,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 13:47:35,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655917906] [2021-11-05 13:47:35,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:47:35,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 13:47:35,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:47:35,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 13:47:35,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 13:47:35,676 INFO L87 Difference]: Start difference. First operand 108 states and 115 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:35,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:47:35,830 INFO L93 Difference]: Finished difference Result 154 states and 166 transitions. [2021-11-05 13:47:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 13:47:35,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-05 13:47:35,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:47:35,831 INFO L225 Difference]: With dead ends: 154 [2021-11-05 13:47:35,831 INFO L226 Difference]: Without dead ends: 85 [2021-11-05 13:47:35,831 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 166.72ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 13:47:35,832 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 6 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.14ms IncrementalHoareTripleChecker+Time [2021-11-05 13:47:35,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 429 Invalid, 16 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 53.14ms Time] [2021-11-05 13:47:35,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-05 13:47:35,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-05 13:47:35,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.139240506329114) internal successors, (90), 84 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) [2021-11-05 13:47:35,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 90 transitions. [2021-11-05 13:47:35,837 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 90 transitions. Word has length 51 [2021-11-05 13:47:35,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:47:35,837 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 90 transitions. [2021-11-05 13:47:35,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:47:35,838 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 90 transitions. [2021-11-05 13:47:35,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 13:47:35,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:47:35,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:47:35,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 13:47:35,839 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:47:35,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:47:35,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1387891500, now seen corresponding path program 1 times [2021-11-05 13:47:35,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:47:35,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33585260] [2021-11-05 13:47:35,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:35,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:47:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:37,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:37,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:47:37,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33585260] [2021-11-05 13:47:37,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33585260] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:47:37,268 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018133993] [2021-11-05 13:47:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:47:37,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:47:37,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:47:37,269 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) [2021-11-05 13:47:37,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 13:47:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:47:38,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 104 conjunts are in the unsatisfiable core [2021-11-05 13:47:38,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:47:40,480 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 13 treesize of output 9 [2021-11-05 13:47:40,788 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-05 13:47:40,788 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 44 treesize of output 43 [2021-11-05 13:47:41,267 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-05 13:47:41,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 21 [2021-11-05 13:47:41,570 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-05 13:47:41,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 86 [2021-11-05 13:47:41,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:47:41,620 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 34 treesize of output 13 [2021-11-05 13:47:42,125 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-05 13:47:42,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 110 treesize of output 72 [2021-11-05 13:47:42,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:47:42,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:48:06,651 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 593 treesize of output 563 [2021-11-05 13:48:07,902 INFO L354 Elim1Store]: treesize reduction 540, result has 28.7 percent of original size [2021-11-05 13:48:07,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 333180 treesize of output 327348 [2021-11-05 13:48:16,620 WARN L230 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 1669 DAG size of output: 1572 [2021-11-05 13:48:16,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-05 13:48:16,632 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 13:48:16,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-11-05 13:48:16,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931433645] [2021-11-05 13:48:16,633 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 13:48:16,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:48:16,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:48:16,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:48:16,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1762, Unknown=8, NotChecked=0, Total=1892 [2021-11-05 13:48:16,634 INFO L87 Difference]: Start difference. First operand 85 states and 90 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:18,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 13:48:21,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:48:21,780 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2021-11-05 13:48:21,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-05 13:48:21,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2021-11-05 13:48:21,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:48:21,781 INFO L225 Difference]: With dead ends: 140 [2021-11-05 13:48:21,781 INFO L226 Difference]: Without dead ends: 97 [2021-11-05 13:48:21,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 28475.92ms TimeCoverageRelationStatistics Valid=224, Invalid=2738, Unknown=8, NotChecked=0, Total=2970 [2021-11-05 13:48:21,783 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 348 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2516.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.96ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2652.78ms IncrementalHoareTripleChecker+Time [2021-11-05 13:48:21,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [348 Valid, 416 Invalid, 141 Unknown, 0 Unchecked, 2.96ms Time], IncrementalHoareTripleChecker [29 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 2652.78ms Time] [2021-11-05 13:48:21,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-05 13:48:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2021-11-05 13:48:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 80 states have (on average 1.1375) internal successors, (91), 85 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-11-05 13:48:21,788 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 51 [2021-11-05 13:48:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:48:21,789 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-11-05 13:48:21,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:48:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-11-05 13:48:21,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 13:48:21,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:48:21,790 INFO L514 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] [2021-11-05 13:48:21,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 13:48:22,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 13:48:22,008 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 13:48:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:48:22,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1871345779, now seen corresponding path program 2 times [2021-11-05 13:48:22,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:48:22,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629023837] [2021-11-05 13:48:22,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:48:22,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:48:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:48:22,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:48:22,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:48:22,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629023837] [2021-11-05 13:48:22,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629023837] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:48:22,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932767397] [2021-11-05 13:48:22,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:48:22,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:48:22,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:48:22,518 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) [2021-11-05 13:48:22,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 13:58:41,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:58:41,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:58:41,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 95 conjunts are in the unsatisfiable core [2021-11-05 13:58:41,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:58:43,617 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 13 treesize of output 9 [2021-11-05 13:58:43,831 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-05 13:58:43,832 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 26 treesize of output 25 [2021-11-05 13:58:44,177 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-05 13:58:44,177 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 37 treesize of output 21 [2021-11-05 13:58:44,367 INFO L354 Elim1Store]: treesize reduction 33, result has 21.4 percent of original size [2021-11-05 13:58:44,368 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 37 treesize of output 21 [2021-11-05 13:58:44,592 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-05 13:58:44,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 81 [2021-11-05 13:58:44,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:58:44,625 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 34 treesize of output 13 [2021-11-05 13:58:44,997 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-05 13:58:44,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 67 [2021-11-05 13:58:45,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:58:45,387 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 14:00:10,598 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 812 treesize of output 772 [2021-11-05 14:00:18,442 WARN L230 SmtUtils]: Spent 7.48s on a formula simplification. DAG size of input: 543 DAG size of output: 279 [2021-11-05 14:00:18,443 INFO L354 Elim1Store]: treesize reduction 1446, result has 30.2 percent of original size [2021-11-05 14:00:18,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 162015014 treesize of output 160432694 Killed by 15