./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_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 d67b4b463cf9b59771b705723a66a102d698cbc5859334aa26ed48a8838f7285 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 10:17:38,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 10:17:38,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 10:17:38,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 10:17:38,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 10:17:38,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 10:17:38,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 10:17:38,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 10:17:38,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 10:17:38,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 10:17:38,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 10:17:38,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 10:17:38,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 10:17:38,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 10:17:38,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 10:17:38,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 10:17:38,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 10:17:38,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 10:17:38,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 10:17:38,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 10:17:38,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 10:17:38,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 10:17:38,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 10:17:38,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 10:17:38,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 10:17:38,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 10:17:38,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 10:17:38,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 10:17:38,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 10:17:38,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 10:17:38,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 10:17:38,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 10:17:38,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 10:17:38,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 10:17:38,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 10:17:38,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 10:17:38,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 10:17:38,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 10:17:38,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 10:17:38,414 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 10:17:38,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 10:17:38,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 10:17:38,428 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 10:17:38,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 10:17:38,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 10:17:38,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 10:17:38,430 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 10:17:38,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 10:17:38,430 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 10:17:38,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 10:17:38,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 10:17:38,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 10:17:38,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 10:17:38,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 10:17:38,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 10:17:38,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 10:17:38,432 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 10:17:38,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 10:17:38,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 10:17:38,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 10:17:38,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 10:17:38,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:17:38,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 10:17:38,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 10:17:38,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 10:17:38,433 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 10:17:38,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 10:17:38,434 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 10:17:38,434 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 10:17:38,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 10:17:38,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 10:17:38,434 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d67b4b463cf9b59771b705723a66a102d698cbc5859334aa26ed48a8838f7285 [2021-11-07 10:17:38,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 10:17:38,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 10:17:38,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 10:17:38,613 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 10:17:38,615 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 10:17:38,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i [2021-11-07 10:17:38,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99ec67d4/fa1f15c696c54a9eab842ac82b0d3e75/FLAGf75172bd5 [2021-11-07 10:17:39,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 10:17:39,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/memcpy_using_uint64_harness.i [2021-11-07 10:17:39,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99ec67d4/fa1f15c696c54a9eab842ac82b0d3e75/FLAGf75172bd5 [2021-11-07 10:17:39,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99ec67d4/fa1f15c696c54a9eab842ac82b0d3e75 [2021-11-07 10:17:39,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 10:17:39,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 10:17:39,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 10:17:39,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 10:17:39,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 10:17:39,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:17:39" (1/1) ... [2021-11-07 10:17:39,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625cd1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:39, skipping insertion in model container [2021-11-07 10:17:39,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 10:17:39" (1/1) ... [2021-11-07 10:17:39,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 10:17:39,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 10:17:39,951 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/memcpy_using_uint64_harness.i[4531,4544] [2021-11-07 10:17:39,957 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/memcpy_using_uint64_harness.i[4591,4604] [2021-11-07 10:17:39,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:17:39,977 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:17:40,388 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,389 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,390 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,391 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,392 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,406 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,409 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,411 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,412 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,413 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,414 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,491 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:17:40,492 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:17:40,493 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:17:40,494 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:17:40,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:17:40,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:17:40,495 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:17:40,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:17:40,496 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:17:40,497 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:17:40,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:17:40,555 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 10:17:40,563 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/memcpy_using_uint64_harness.i[4531,4544] [2021-11-07 10:17:40,564 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/memcpy_using_uint64_harness.i[4591,4604] [2021-11-07 10:17:40,565 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 10:17:40,569 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 10:17:40,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,604 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,613 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,614 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,615 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,616 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 10:17:40,634 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 10:17:40,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 10:17:40,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 10:17:40,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 10:17:40,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 10:17:40,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 10:17:40,650 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 10:17:40,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 10:17:40,651 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 10:17:40,652 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 10:17:40,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 10:17:40,790 INFO L208 MainTranslator]: Completed translation [2021-11-07 10:17:40,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40 WrapperNode [2021-11-07 10:17:40,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 10:17:40,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 10:17:40,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 10:17:40,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 10:17:40,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 10:17:40,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 10:17:40,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 10:17:40,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 10:17:40,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 10:17:40,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 10:17:40,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 10:17:40,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 10:17:40,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (1/1) ... [2021-11-07 10:17:40,929 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 10:17:40,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:40,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 10:17:40,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 10:17:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 10:17:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 10:17:40,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 10:17:40,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 10:17:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 10:17:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 10:17:40,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 10:17:41,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 10:17:41,380 INFO L299 CfgBuilder]: Removed 37 assume(true) statements. [2021-11-07 10:17:41,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:17:41 BoogieIcfgContainer [2021-11-07 10:17:41,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 10:17:41,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 10:17:41,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 10:17:41,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 10:17:41,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 10:17:39" (1/3) ... [2021-11-07 10:17:41,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c6ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:17:41, skipping insertion in model container [2021-11-07 10:17:41,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 10:17:40" (2/3) ... [2021-11-07 10:17:41,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c6ce1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 10:17:41, skipping insertion in model container [2021-11-07 10:17:41,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 10:17:41" (3/3) ... [2021-11-07 10:17:41,387 INFO L111 eAbstractionObserver]: Analyzing ICFG memcpy_using_uint64_harness.i [2021-11-07 10:17:41,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 10:17:41,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-07 10:17:41,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 10:17:41,435 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 10:17:41,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-07 10:17:41,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 56 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 10:17:41,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:41,448 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] [2021-11-07 10:17:41,449 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:41,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:41,453 INFO L85 PathProgramCache]: Analyzing trace with hash 696751054, now seen corresponding path program 1 times [2021-11-07 10:17:41,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:41,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380693617] [2021-11-07 10:17:41,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:41,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:41,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:41,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:41,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380693617] [2021-11-07 10:17:41,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380693617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:17:41,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:17:41,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 10:17:41,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530232943] [2021-11-07 10:17:41,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:17:41,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 10:17:41,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:41,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 10:17:41,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:17:41,654 INFO L87 Difference]: Start difference. First operand has 57 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 56 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:41,668 INFO L93 Difference]: Finished difference Result 110 states and 154 transitions. [2021-11-07 10:17:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 10:17:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-11-07 10:17:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:41,675 INFO L225 Difference]: With dead ends: 110 [2021-11-07 10:17:41,675 INFO L226 Difference]: Without dead ends: 51 [2021-11-07 10:17:41,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 10:17:41,682 INFO L933 BasicCegarLoop]: 67 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, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:41,683 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 10:17:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-11-07 10:17:41,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-11-07 10:17:41,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 49 states have (on average 1.2244897959183674) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2021-11-07 10:17:41,706 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 40 [2021-11-07 10:17:41,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:41,706 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2021-11-07 10:17:41,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,706 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2021-11-07 10:17:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-07 10:17:41,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:41,707 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] [2021-11-07 10:17:41,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 10:17:41,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:41,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1268023626, now seen corresponding path program 1 times [2021-11-07 10:17:41,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:41,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116454672] [2021-11-07 10:17:41,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:41,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:41,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:41,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:41,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:41,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116454672] [2021-11-07 10:17:41,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116454672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:17:41,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 10:17:41,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 10:17:41,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107496171] [2021-11-07 10:17:41,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:17:41,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:17:41,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:41,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:17:41,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:17:41,815 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:41,831 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2021-11-07 10:17:41,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:17:41,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2021-11-07 10:17:41,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:41,832 INFO L225 Difference]: With dead ends: 100 [2021-11-07 10:17:41,832 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 10:17:41,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 10:17:41,834 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.94ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:41,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 114 Invalid, 5 Unknown, 0 Unchecked, 0.91ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 5.94ms Time] [2021-11-07 10:17:41,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 10:17:41,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-11-07 10:17:41,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.22) internal successors, (61), 51 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2021-11-07 10:17:41,838 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 40 [2021-11-07 10:17:41,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:41,839 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2021-11-07 10:17:41,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:41,839 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2021-11-07 10:17:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 10:17:41,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:41,840 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] [2021-11-07 10:17:41,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 10:17:41,840 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:41,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash -22336436, now seen corresponding path program 1 times [2021-11-07 10:17:41,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:41,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588775303] [2021-11-07 10:17:41,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:41,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:41,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:41,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588775303] [2021-11-07 10:17:41,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588775303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:41,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221080296] [2021-11-07 10:17:41,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:41,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:41,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:41,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 10:17:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:42,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:17:42,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:42,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:17:42,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221080296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:17:42,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 10:17:42,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-07 10:17:42,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060744325] [2021-11-07 10:17:42,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:17:42,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 10:17:42,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:42,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 10:17:42,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:17:42,173 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:42,227 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2021-11-07 10:17:42,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 10:17:42,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-07 10:17:42,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:42,230 INFO L225 Difference]: With dead ends: 90 [2021-11-07 10:17:42,231 INFO L226 Difference]: Without dead ends: 65 [2021-11-07 10:17:42,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 10.05ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 10:17:42,234 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.59ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:42,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 85 Invalid, 44 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [16 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 34.59ms Time] [2021-11-07 10:17:42,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-07 10:17:42,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64. [2021-11-07 10:17:42,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.1774193548387097) internal successors, (73), 63 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 73 transitions. [2021-11-07 10:17:42,247 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 73 transitions. Word has length 42 [2021-11-07 10:17:42,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:42,247 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 73 transitions. [2021-11-07 10:17:42,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2021-11-07 10:17:42,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-07 10:17:42,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:42,248 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] [2021-11-07 10:17:42,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:42,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:42,449 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:42,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:42,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1797343798, now seen corresponding path program 1 times [2021-11-07 10:17:42,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:42,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95694016] [2021-11-07 10:17:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:42,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:42,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:42,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:42,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95694016] [2021-11-07 10:17:42,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95694016] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:42,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534152077] [2021-11-07 10:17:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:42,502 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:42,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:42,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:42,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 10:17:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:42,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 10:17:42,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:42,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:17:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:42,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534152077] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:17:42,765 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:17:42,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-07 10:17:42,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603434890] [2021-11-07 10:17:42,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:17:42,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 10:17:42,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:42,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 10:17:42,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:17:42,767 INFO L87 Difference]: Start difference. First operand 64 states and 73 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:42,788 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2021-11-07 10:17:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 10:17:42,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 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 42 [2021-11-07 10:17:42,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:42,792 INFO L225 Difference]: With dead ends: 129 [2021-11-07 10:17:42,792 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 10:17:42,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.69ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-07 10:17:42,793 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 6 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.63ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.59ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:42,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 17 Unknown, 0 Unchecked, 0.63ms Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 17.59ms Time] [2021-11-07 10:17:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 10:17:42,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-07 10:17:42,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.161764705882353) internal successors, (79), 69 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2021-11-07 10:17:42,797 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 42 [2021-11-07 10:17:42,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:42,797 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2021-11-07 10:17:42,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2021-11-07 10:17:42,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-07 10:17:42,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:42,799 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:42,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:43,017 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,SelfDestructingSolverStorable3 [2021-11-07 10:17:43,017 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:43,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1020453840, now seen corresponding path program 2 times [2021-11-07 10:17:43,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:43,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368930868] [2021-11-07 10:17:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:43,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:43,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:43,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:43,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368930868] [2021-11-07 10:17:43,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368930868] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:43,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711402724] [2021-11-07 10:17:43,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 10:17:43,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:43,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:43,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:43,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 10:17:43,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 10:17:43,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 10:17:43,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 10:17:43,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-07 10:17:43,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:17:43,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711402724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:17:43,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 10:17:43,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-11-07 10:17:43,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633041408] [2021-11-07 10:17:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:17:43,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 10:17:43,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 10:17:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:17:43,586 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:43,668 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2021-11-07 10:17:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 10:17:43,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-07 10:17:43,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:43,669 INFO L225 Difference]: With dead ends: 70 [2021-11-07 10:17:43,669 INFO L226 Difference]: Without dead ends: 68 [2021-11-07 10:17:43,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 93.04ms TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-07 10:17:43,670 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 167 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.45ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:43,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 137 Invalid, 40 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 36.45ms Time] [2021-11-07 10:17:43,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-07 10:17:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-07 10:17:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 67 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:43,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2021-11-07 10:17:43,674 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 48 [2021-11-07 10:17:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:43,674 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2021-11-07 10:17:43,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2021-11-07 10:17:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 10:17:43,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:43,681 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:43,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:43,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:43,900 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:43,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:43,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1643413041, now seen corresponding path program 1 times [2021-11-07 10:17:43,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:43,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375100550] [2021-11-07 10:17:43,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:43,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:44,011 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:44,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:44,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375100550] [2021-11-07 10:17:44,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375100550] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:44,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199766478] [2021-11-07 10:17:44,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:44,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:44,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:44,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:44,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 10:17:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:44,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 10:17:44,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:44,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:17:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:44,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199766478] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:17:44,282 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:17:44,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-07 10:17:44,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867974753] [2021-11-07 10:17:44,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:17:44,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 10:17:44,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:44,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 10:17:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:17:44,283 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:44,314 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2021-11-07 10:17:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 10:17:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-07 10:17:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:44,318 INFO L225 Difference]: With dead ends: 137 [2021-11-07 10:17:44,318 INFO L226 Difference]: Without dead ends: 80 [2021-11-07 10:17:44,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 42.56ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-07 10:17:44,319 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 10 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.71ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:44,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 272 Invalid, 35 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [8 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 25.71ms Time] [2021-11-07 10:17:44,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-07 10:17:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-07 10:17:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.1265822784810127) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2021-11-07 10:17:44,322 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 53 [2021-11-07 10:17:44,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:44,323 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2021-11-07 10:17:44,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.076923076923077) internal successors, (66), 13 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:44,323 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2021-11-07 10:17:44,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 10:17:44,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:44,323 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:44,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:44,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:44,536 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:44,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:44,536 INFO L85 PathProgramCache]: Analyzing trace with hash -535735613, now seen corresponding path program 2 times [2021-11-07 10:17:44,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:44,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205523923] [2021-11-07 10:17:44,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:44,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:44,657 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 10:17:44,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:44,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205523923] [2021-11-07 10:17:44,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205523923] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:44,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298520973] [2021-11-07 10:17:44,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 10:17:44,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:44,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:44,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:44,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 10:17:44,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-07 10:17:44,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 10:17:44,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-07 10:17:44,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-07 10:17:45,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 10:17:45,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298520973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 10:17:45,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 10:17:45,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 23 [2021-11-07 10:17:45,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669324434] [2021-11-07 10:17:45,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 10:17:45,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 10:17:45,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:45,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 10:17:45,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2021-11-07 10:17:45,295 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:45,531 INFO L93 Difference]: Finished difference Result 128 states and 145 transitions. [2021-11-07 10:17:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 10:17:45,531 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 10:17:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:45,532 INFO L225 Difference]: With dead ends: 128 [2021-11-07 10:17:45,532 INFO L226 Difference]: Without dead ends: 82 [2021-11-07 10:17:45,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 285.25ms TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2021-11-07 10:17:45,533 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 339 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.91ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.12ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:45,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [339 Valid, 291 Invalid, 129 Unknown, 0 Unchecked, 1.91ms Time], IncrementalHoareTripleChecker [9 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 88.12ms Time] [2021-11-07 10:17:45,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-11-07 10:17:45,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-11-07 10:17:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.125) internal successors, (90), 80 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) [2021-11-07 10:17:45,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2021-11-07 10:17:45,551 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 65 [2021-11-07 10:17:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:45,551 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2021-11-07 10:17:45,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2021-11-07 10:17:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 10:17:45,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:45,552 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:45,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:45,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:45,759 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:45,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:45,760 INFO L85 PathProgramCache]: Analyzing trace with hash 268249665, now seen corresponding path program 1 times [2021-11-07 10:17:45,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:45,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090535873] [2021-11-07 10:17:45,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:45,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:45,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:45,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090535873] [2021-11-07 10:17:45,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090535873] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:45,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728196093] [2021-11-07 10:17:45,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:45,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:45,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:45,901 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:45,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 10:17:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:46,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 10:17:46,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:46,087 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:46,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:17:46,266 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:46,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728196093] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:17:46,266 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:17:46,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2021-11-07 10:17:46,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251734354] [2021-11-07 10:17:46,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:17:46,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 10:17:46,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:46,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 10:17:46,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 10:17:46,267 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 25 states, 25 states have (on average 3.68) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:46,314 INFO L93 Difference]: Finished difference Result 163 states and 192 transitions. [2021-11-07 10:17:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 10:17:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 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 67 [2021-11-07 10:17:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:46,315 INFO L225 Difference]: With dead ends: 163 [2021-11-07 10:17:46,315 INFO L226 Difference]: Without dead ends: 105 [2021-11-07 10:17:46,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 143.16ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-07 10:17:46,316 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.64ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:46,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 218 Invalid, 63 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [15 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 38.64ms Time] [2021-11-07 10:17:46,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-07 10:17:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-07 10:17:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.0961538461538463) internal successors, (114), 104 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:46,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2021-11-07 10:17:46,321 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 67 [2021-11-07 10:17:46,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:46,321 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2021-11-07 10:17:46,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.68) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:46,321 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2021-11-07 10:17:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-07 10:17:46,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:46,322 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:46,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:46,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:46,540 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:46,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1700661289, now seen corresponding path program 2 times [2021-11-07 10:17:46,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:46,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985067551] [2021-11-07 10:17:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:46,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:46,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:46,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985067551] [2021-11-07 10:17:46,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985067551] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:46,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044712832] [2021-11-07 10:17:46,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 10:17:46,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:46,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:46,843 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:46,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 10:17:47,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 10:17:47,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 10:17:47,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 10:17:47,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:47,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 10:17:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:47,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044712832] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 10:17:47,818 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-07 10:17:47,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2021-11-07 10:17:47,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083691518] [2021-11-07 10:17:47,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-07 10:17:47,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-07 10:17:47,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 10:17:47,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-07 10:17:47,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 10:17:47,821 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 49 states, 49 states have (on average 2.857142857142857) internal successors, (140), 49 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 10:17:47,937 INFO L93 Difference]: Finished difference Result 211 states and 252 transitions. [2021-11-07 10:17:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-07 10:17:47,938 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.857142857142857) internal successors, (140), 49 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-07 10:17:47,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 10:17:47,939 INFO L225 Difference]: With dead ends: 211 [2021-11-07 10:17:47,939 INFO L226 Difference]: Without dead ends: 153 [2021-11-07 10:17:47,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 660.66ms TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 10:17:47,940 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 69 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 93.19ms IncrementalHoareTripleChecker+Time [2021-11-07 10:17:47,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 218 Invalid, 128 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [30 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 93.19ms Time] [2021-11-07 10:17:47,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-07 10:17:47,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-11-07 10:17:47,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 1.0657894736842106) internal successors, (162), 152 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:47,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2021-11-07 10:17:47,947 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 91 [2021-11-07 10:17:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 10:17:47,947 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2021-11-07 10:17:47,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.857142857142857) internal successors, (140), 49 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 10:17:47,947 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2021-11-07 10:17:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-07 10:17:47,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 10:17:47,948 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 10:17:47,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 10:17:48,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:48,168 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 10:17:48,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 10:17:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1929110535, now seen corresponding path program 3 times [2021-11-07 10:17:48,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 10:17:48,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055452695] [2021-11-07 10:17:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 10:17:48,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 10:17:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 10:17:48,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 10:17:48,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 10:17:48,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055452695] [2021-11-07 10:17:48,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055452695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 10:17:48,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030850777] [2021-11-07 10:17:48,995 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 10:17:48,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 10:17:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 10:17:49,006 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 10:17:49,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 10:17:49,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-07 10:17:49,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 10:17:49,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 112 conjunts are in the unsatisfiable core [2021-11-07 10:17:49,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 10:17:49,545 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 10:17:49,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-07 10:17:51,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2021-11-07 10:17:51,376 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 10:17:51,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:51,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 36 [2021-11-07 10:17:52,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 57 [2021-11-07 10:17:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 78 [2021-11-07 10:17:52,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 19 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 99 [2021-11-07 10:17:52,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 120 [2021-11-07 10:17:52,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:52,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 39 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 141 [2021-11-07 10:17:53,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 10:17:53,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,038 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 10:17:53,050 INFO L354 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2021-11-07 10:17:53,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 24 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 71 case distinctions, treesize of input 116 treesize of output 150 [2021-11-07 10:17:54,990 INFO L354 Elim1Store]: treesize reduction 982, result has 0.7 percent of original size [2021-11-07 10:17:54,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 19 select indices, 19 select index equivalence classes, 21 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 255 treesize of output 169 [2021-11-07 10:17:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2116 trivial. 0 not checked. [2021-11-07 10:17:55,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15