./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_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 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:18:30,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:18:30,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:18:30,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:18:30,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:18:30,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:18:30,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:18:30,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:18:30,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:18:30,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:18:30,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:18:30,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:18:30,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:18:30,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:18:30,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:18:30,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:18:30,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:18:30,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:18:30,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:18:30,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:18:30,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:18:30,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:18:30,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:18:30,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:18:30,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:18:30,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:18:30,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:18:30,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:18:30,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:18:30,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:18:30,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:18:30,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:18:30,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:18:30,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:18:30,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:18:30,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:18:30,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:18:30,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:18:30,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:18:30,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:18:30,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:18:30,762 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:18:30,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:18:30,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:18:30,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:18:30,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:18:30,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:18:30,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:18:30,795 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:18:30,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:18:30,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:18:30,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:18:30,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:18:30,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:18:30,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:18:30,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:18:30,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:18:30,799 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:18:30,799 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:18:30,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:18:30,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:18:30,799 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26dd1e590401fc7cb1a23c07b0d1f52f89cca75ab7679d1aa0110320620b8ebd [2021-11-05 12:18:31,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:18:31,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:18:31,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:18:31,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:18:31,078 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:18:31,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-05 12:18:31,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4420df8c3/fa62ea2407064064b763cbee33fcd324/FLAG4d6c88bcc [2021-11-05 12:18:31,727 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:18:31,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i [2021-11-05 12:18:31,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4420df8c3/fa62ea2407064064b763cbee33fcd324/FLAG4d6c88bcc [2021-11-05 12:18:31,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4420df8c3/fa62ea2407064064b763cbee33fcd324 [2021-11-05 12:18:31,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:18:31,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:18:31,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:18:31,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:18:31,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:18:31,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:18:31" (1/1) ... [2021-11-05 12:18:31,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a5b930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:31, skipping insertion in model container [2021-11-05 12:18:31,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:18:31" (1/1) ... [2021-11-05 12:18:31,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:18:32,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:18:32,346 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-05 12:18:32,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-05 12:18:32,367 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:18:32,370 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:18:32,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,900 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,901 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,902 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:32,922 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:18:33,128 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:18:33,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:18:33,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:18:33,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:18:33,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:18:33,131 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:18:33,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:18:33,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:18:33,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:18:33,234 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:18:33,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:18:33,470 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:18:33,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4492,4505] [2021-11-05 12:18:33,491 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_reset_harness.i[4552,4565] [2021-11-05 12:18:33,492 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:18:33,493 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:18:33,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,521 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,522 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,523 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,529 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,530 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,569 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:18:33,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:18:33,570 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:18:33,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:18:33,571 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:18:33,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:18:33,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:18:33,572 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:18:33,573 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:18:33,577 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:18:33,592 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:18:33,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:18:33,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:18:33,932 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:18:33,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33 WrapperNode [2021-11-05 12:18:33,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:18:33,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:18:33,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:18:33,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:18:33,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:18:34,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:18:34,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:18:34,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:18:34,091 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:18:34,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:18:34,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:18:34,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:18:34,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (1/1) ... [2021-11-05 12:18:34,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:18:34,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:18:34,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 12:18:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:18:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:18:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:18:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:18:34,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:18:34,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:18:34,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 12:18:34,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:18:34,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:18:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:18:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:18:34,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:18:41,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:18:41,294 INFO L299 CfgBuilder]: Removed 61 assume(true) statements. [2021-11-05 12:18:41,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:18:41 BoogieIcfgContainer [2021-11-05 12:18:41,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:18:41,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:18:41,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:18:41,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:18:41,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:18:31" (1/3) ... [2021-11-05 12:18:41,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bee7b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:18:41, skipping insertion in model container [2021-11-05 12:18:41,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:18:33" (2/3) ... [2021-11-05 12:18:41,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bee7b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:18:41, skipping insertion in model container [2021-11-05 12:18:41,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:18:41" (3/3) ... [2021-11-05 12:18:41,300 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_reset_harness.i [2021-11-05 12:18:41,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:18:41,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-05 12:18:41,333 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:18:41,337 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 12:18:41,337 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-05 12:18:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:41,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 12:18:41,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:41,364 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] [2021-11-05 12:18:41,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:41,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1062443937, now seen corresponding path program 1 times [2021-11-05 12:18:41,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:41,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863824468] [2021-11-05 12:18:41,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:41,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:41,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:41,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:41,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863824468] [2021-11-05 12:18:41,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863824468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:41,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:41,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:18:41,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907437510] [2021-11-05 12:18:41,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:41,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:18:41,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:41,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:18:41,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:18:41,890 INFO L87 Difference]: Start difference. First operand has 110 states, 103 states have (on average 1.4563106796116505) internal successors, (150), 109 states have internal predecessors, (150), 0 states have call successors, (0), 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 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:41,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:41,906 INFO L93 Difference]: Finished difference Result 216 states and 295 transitions. [2021-11-05 12:18:41,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:18:41,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-11-05 12:18:41,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:41,913 INFO L225 Difference]: With dead ends: 216 [2021-11-05 12:18:41,913 INFO L226 Difference]: Without dead ends: 103 [2021-11-05 12:18:41,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:18:41,922 INFO L933 BasicCegarLoop]: 137 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, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:41,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.48ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:18:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-05 12:18:41,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-05 12:18:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 102 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:41,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 128 transitions. [2021-11-05 12:18:41,944 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 128 transitions. Word has length 22 [2021-11-05 12:18:41,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:41,944 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 128 transitions. [2021-11-05 12:18:41,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:41,944 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 128 transitions. [2021-11-05 12:18:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-05 12:18:41,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:41,945 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] [2021-11-05 12:18:41,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:18:41,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:41,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1987497567, now seen corresponding path program 1 times [2021-11-05 12:18:41,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:41,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887301822] [2021-11-05 12:18:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:41,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:42,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:42,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:42,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887301822] [2021-11-05 12:18:42,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887301822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:42,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:42,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:18:42,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301397362] [2021-11-05 12:18:42,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:42,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:18:42,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:42,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:18:42,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:18:42,241 INFO L87 Difference]: Start difference. First operand 103 states and 128 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:42,405 INFO L93 Difference]: Finished difference Result 180 states and 222 transitions. [2021-11-05 12:18:42,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:18:42,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2021-11-05 12:18:42,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:42,406 INFO L225 Difference]: With dead ends: 180 [2021-11-05 12:18:42,406 INFO L226 Difference]: Without dead ends: 103 [2021-11-05 12:18:42,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.76ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:18:42,408 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 168 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.88ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.95ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:42,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 172 Invalid, 29 Unknown, 0 Unchecked, 2.88ms Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 145.95ms Time] [2021-11-05 12:18:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-05 12:18:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-05 12:18:42,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 97 states have (on average 1.309278350515464) internal successors, (127), 102 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2021-11-05 12:18:42,414 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 22 [2021-11-05 12:18:42,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:42,414 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2021-11-05 12:18:42,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,414 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2021-11-05 12:18:42,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-05 12:18:42,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:42,415 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] [2021-11-05 12:18:42,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:18:42,428 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:42,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1026351090, now seen corresponding path program 1 times [2021-11-05 12:18:42,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:42,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891842988] [2021-11-05 12:18:42,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:42,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:42,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:42,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891842988] [2021-11-05 12:18:42,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891842988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:42,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:42,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:18:42,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866586170] [2021-11-05 12:18:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:42,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:18:42,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:42,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:18:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:18:42,673 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:42,890 INFO L93 Difference]: Finished difference Result 211 states and 264 transitions. [2021-11-05 12:18:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:18:42,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-11-05 12:18:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:42,892 INFO L225 Difference]: With dead ends: 211 [2021-11-05 12:18:42,892 INFO L226 Difference]: Without dead ends: 133 [2021-11-05 12:18:42,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.46ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:18:42,893 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 69 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 155.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.23ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.55ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:42,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 340 Invalid, 59 Unknown, 0 Unchecked, 3.23ms Time], IncrementalHoareTripleChecker [9 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 179.55ms Time] [2021-11-05 12:18:42,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-05 12:18:42,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 109. [2021-11-05 12:18:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 108 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 133 transitions. [2021-11-05 12:18:42,902 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 133 transitions. Word has length 28 [2021-11-05 12:18:42,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:42,902 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 133 transitions. [2021-11-05 12:18:42,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 133 transitions. [2021-11-05 12:18:42,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-05 12:18:42,903 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:42,903 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] [2021-11-05 12:18:42,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:18:42,904 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:42,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:42,904 INFO L85 PathProgramCache]: Analyzing trace with hash -439545076, now seen corresponding path program 1 times [2021-11-05 12:18:42,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:42,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684772358] [2021-11-05 12:18:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:42,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:43,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:43,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684772358] [2021-11-05 12:18:43,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684772358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:43,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:43,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:18:43,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454545943] [2021-11-05 12:18:43,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:43,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:18:43,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:43,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:18:43,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:18:43,311 INFO L87 Difference]: Start difference. First operand 109 states and 133 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:45,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:45,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:45,751 INFO L93 Difference]: Finished difference Result 109 states and 133 transitions. [2021-11-05 12:18:45,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:18:45,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-11-05 12:18:45,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:45,753 INFO L225 Difference]: With dead ends: 109 [2021-11-05 12:18:45,753 INFO L226 Difference]: Without dead ends: 107 [2021-11-05 12:18:45,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 126.63ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:18:45,753 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 108 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2209.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.36ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2354.47ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:45,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 331 Invalid, 57 Unknown, 0 Unchecked, 2.36ms Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 2354.47ms Time] [2021-11-05 12:18:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-05 12:18:45,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-05 12:18:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 106 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:45,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 131 transitions. [2021-11-05 12:18:45,760 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 131 transitions. Word has length 28 [2021-11-05 12:18:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:45,760 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 131 transitions. [2021-11-05 12:18:45,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:45,761 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 131 transitions. [2021-11-05 12:18:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-05 12:18:45,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:45,761 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] [2021-11-05 12:18:45,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:18:45,762 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1495890418, now seen corresponding path program 1 times [2021-11-05 12:18:45,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:45,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696844268] [2021-11-05 12:18:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:45,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:46,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:46,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696844268] [2021-11-05 12:18:46,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696844268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:46,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:46,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:18:46,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584054889] [2021-11-05 12:18:46,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:46,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:18:46,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:18:46,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:18:46,466 INFO L87 Difference]: Start difference. First operand 107 states and 131 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:48,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:50,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:52,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:53,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:53,156 INFO L93 Difference]: Finished difference Result 137 states and 161 transitions. [2021-11-05 12:18:53,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:18:53,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 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 30 [2021-11-05 12:18:53,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:53,158 INFO L225 Difference]: With dead ends: 137 [2021-11-05 12:18:53,158 INFO L226 Difference]: Without dead ends: 135 [2021-11-05 12:18:53,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 276.33ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:18:53,160 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 246 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6257.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.80ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6549.04ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:53,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 282 Invalid, 83 Unknown, 0 Unchecked, 2.80ms Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 3 Unknown, 0 Unchecked, 6549.04ms Time] [2021-11-05 12:18:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-05 12:18:53,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 112. [2021-11-05 12:18:53,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 111 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:53,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 136 transitions. [2021-11-05 12:18:53,172 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 136 transitions. Word has length 30 [2021-11-05 12:18:53,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:53,173 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 136 transitions. [2021-11-05 12:18:53,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:53,173 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 136 transitions. [2021-11-05 12:18:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-05 12:18:53,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:53,175 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] [2021-11-05 12:18:53,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:18:53,175 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:53,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1263485360, now seen corresponding path program 1 times [2021-11-05 12:18:53,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:53,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123456319] [2021-11-05 12:18:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:53,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:18:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:18:53,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:18:53,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:18:53,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123456319] [2021-11-05 12:18:53,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123456319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:18:53,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:18:53,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:18:53,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418904003] [2021-11-05 12:18:53,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:18:53,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:18:53,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:18:53,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:18:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:18:53,871 INFO L87 Difference]: Start difference. First operand 112 states and 136 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:55,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:58,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:18:58,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:18:58,451 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2021-11-05 12:18:58,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:18:58,453 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-11-05 12:18:58,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:18:58,453 INFO L225 Difference]: With dead ends: 135 [2021-11-05 12:18:58,453 INFO L226 Difference]: Without dead ends: 133 [2021-11-05 12:18:58,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 305.96ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:18:58,454 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 360 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4240.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.97ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4454.74ms IncrementalHoareTripleChecker+Time [2021-11-05 12:18:58,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 282 Invalid, 87 Unknown, 0 Unchecked, 1.97ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 2 Unknown, 0 Unchecked, 4454.74ms Time] [2021-11-05 12:18:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-05 12:18:58,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 114. [2021-11-05 12:18:58,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.2660550458715596) internal successors, (138), 113 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:58,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2021-11-05 12:18:58,460 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 32 [2021-11-05 12:18:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:18:58,460 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2021-11-05 12:18:58,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:18:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2021-11-05 12:18:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-05 12:18:58,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:18:58,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:18:58,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:18:58,461 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:18:58,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:18:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1266180622, now seen corresponding path program 1 times [2021-11-05 12:18:58,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:18:58,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592332337] [2021-11-05 12:18:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:18:58,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:00,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:00,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592332337] [2021-11-05 12:19:00,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592332337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:00,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:00,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:19:00,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509302358] [2021-11-05 12:19:00,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:00,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:19:00,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:00,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:19:00,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:19:00,484 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:02,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:04,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:05,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:05,243 INFO L93 Difference]: Finished difference Result 133 states and 157 transitions. [2021-11-05 12:19:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:19:05,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-11-05 12:19:05,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:05,247 INFO L225 Difference]: With dead ends: 133 [2021-11-05 12:19:05,247 INFO L226 Difference]: Without dead ends: 131 [2021-11-05 12:19:05,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 218.35ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:19:05,248 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 180 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4332.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.01ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4636.24ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:05,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 337 Invalid, 107 Unknown, 0 Unchecked, 3.01ms Time], IncrementalHoareTripleChecker [7 Valid, 98 Invalid, 2 Unknown, 0 Unchecked, 4636.24ms Time] [2021-11-05 12:19:05,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-05 12:19:05,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2021-11-05 12:19:05,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 115 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) [2021-11-05 12:19:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2021-11-05 12:19:05,253 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 34 [2021-11-05 12:19:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:05,253 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2021-11-05 12:19:05,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2021-11-05 12:19:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-05 12:19:05,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:05,254 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] [2021-11-05 12:19:05,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 12:19:05,255 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:05,260 INFO L85 PathProgramCache]: Analyzing trace with hash -423727705, now seen corresponding path program 1 times [2021-11-05 12:19:05,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:05,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602682882] [2021-11-05 12:19:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:05,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:05,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:05,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602682882] [2021-11-05 12:19:05,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602682882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:05,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:05,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:19:05,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752516480] [2021-11-05 12:19:05,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:05,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:19:05,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:05,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:19:05,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:19:05,598 INFO L87 Difference]: Start difference. First operand 116 states and 140 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:05,817 INFO L93 Difference]: Finished difference Result 175 states and 208 transitions. [2021-11-05 12:19:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:19:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 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 36 [2021-11-05 12:19:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:05,818 INFO L225 Difference]: With dead ends: 175 [2021-11-05 12:19:05,818 INFO L226 Difference]: Without dead ends: 116 [2021-11-05 12:19:05,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 212.15ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:19:05,819 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 374 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.50ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:05,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 200 Invalid, 35 Unknown, 0 Unchecked, 1.60ms Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 95.50ms Time] [2021-11-05 12:19:05,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-05 12:19:05,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-05 12:19:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.2522522522522523) internal successors, (139), 115 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:05,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 139 transitions. [2021-11-05 12:19:05,824 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 139 transitions. Word has length 36 [2021-11-05 12:19:05,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:05,824 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 139 transitions. [2021-11-05 12:19:05,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:05,825 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 139 transitions. [2021-11-05 12:19:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-05 12:19:05,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:05,826 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] [2021-11-05 12:19:05,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 12:19:05,826 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:05,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1985324549, now seen corresponding path program 1 times [2021-11-05 12:19:05,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:05,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951673115] [2021-11-05 12:19:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:05,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:06,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:06,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951673115] [2021-11-05 12:19:06,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951673115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:06,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:06,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:19:06,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873197355] [2021-11-05 12:19:06,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:06,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:19:06,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:19:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:19:06,224 INFO L87 Difference]: Start difference. First operand 116 states and 139 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:06,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:06,295 INFO L93 Difference]: Finished difference Result 125 states and 147 transitions. [2021-11-05 12:19:06,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:19:06,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 41 [2021-11-05 12:19:06,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:06,296 INFO L225 Difference]: With dead ends: 125 [2021-11-05 12:19:06,296 INFO L226 Difference]: Without dead ends: 107 [2021-11-05 12:19:06,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:19:06,297 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 97 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.38ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:06,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 275 Invalid, 8 Unknown, 0 Unchecked, 0.52ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 27.38ms Time] [2021-11-05 12:19:06,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-05 12:19:06,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-05 12:19:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 106 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2021-11-05 12:19:06,301 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 41 [2021-11-05 12:19:06,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:06,301 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2021-11-05 12:19:06,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2021-11-05 12:19:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-05 12:19:06,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:06,303 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] [2021-11-05 12:19:06,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 12:19:06,303 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1569295218, now seen corresponding path program 1 times [2021-11-05 12:19:06,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:06,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491653511] [2021-11-05 12:19:06,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:06,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:06,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:06,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:06,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491653511] [2021-11-05 12:19:06,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491653511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:06,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:06,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:19:06,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558760563] [2021-11-05 12:19:06,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:06,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:19:06,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:06,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:19:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:19:06,640 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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) [2021-11-05 12:19:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:06,944 INFO L93 Difference]: Finished difference Result 137 states and 158 transitions. [2021-11-05 12:19:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:19:06,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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 [2021-11-05 12:19:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:06,947 INFO L225 Difference]: With dead ends: 137 [2021-11-05 12:19:06,947 INFO L226 Difference]: Without dead ends: 107 [2021-11-05 12:19:06,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 301.66ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:19:06,948 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 441 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 102.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 134.01ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:06,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 224 Invalid, 43 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 134.01ms Time] [2021-11-05 12:19:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-05 12:19:06,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-05 12:19:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.2549019607843137) internal successors, (128), 106 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 128 transitions. [2021-11-05 12:19:06,951 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 128 transitions. Word has length 42 [2021-11-05 12:19:06,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:06,952 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 128 transitions. [2021-11-05 12:19:06,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 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) [2021-11-05 12:19:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 128 transitions. [2021-11-05 12:19:06,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-05 12:19:06,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:06,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:06,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 12:19:06,953 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:06,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:06,953 INFO L85 PathProgramCache]: Analyzing trace with hash 2099325991, now seen corresponding path program 1 times [2021-11-05 12:19:06,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:06,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648441221] [2021-11-05 12:19:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:06,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:07,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:07,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648441221] [2021-11-05 12:19:07,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648441221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:07,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:07,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:19:07,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015193215] [2021-11-05 12:19:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:07,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:19:07,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:07,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:19:07,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:19:07,319 INFO L87 Difference]: Start difference. First operand 107 states and 128 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:07,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:07,644 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2021-11-05 12:19:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:19:07,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-05 12:19:07,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:07,645 INFO L225 Difference]: With dead ends: 159 [2021-11-05 12:19:07,645 INFO L226 Difference]: Without dead ends: 157 [2021-11-05 12:19:07,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 169.11ms TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:19:07,646 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 98 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 244.73ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:07,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 472 Invalid, 93 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 244.73ms Time] [2021-11-05 12:19:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-05 12:19:07,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 111. [2021-11-05 12:19:07,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 110 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:07,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 132 transitions. [2021-11-05 12:19:07,649 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 132 transitions. Word has length 48 [2021-11-05 12:19:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:07,650 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 132 transitions. [2021-11-05 12:19:07,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 132 transitions. [2021-11-05 12:19:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 12:19:07,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:07,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:07,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 12:19:07,651 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:07,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2070696161, now seen corresponding path program 1 times [2021-11-05 12:19:07,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:07,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139206982] [2021-11-05 12:19:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:07,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:07,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:07,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:07,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139206982] [2021-11-05 12:19:07,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139206982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:07,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:07,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:19:07,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769684638] [2021-11-05 12:19:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:07,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:19:07,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:07,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:19:07,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:19:07,975 INFO L87 Difference]: Start difference. First operand 111 states and 132 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:10,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:10,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:10,477 INFO L93 Difference]: Finished difference Result 150 states and 172 transitions. [2021-11-05 12:19:10,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:19:10,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-05 12:19:10,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:10,478 INFO L225 Difference]: With dead ends: 150 [2021-11-05 12:19:10,478 INFO L226 Difference]: Without dead ends: 118 [2021-11-05 12:19:10,479 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 134.66ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:19:10,479 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 62 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2287.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.73ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2424.80ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:10,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 342 Invalid, 98 Unknown, 0 Unchecked, 1.73ms Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 2424.80ms Time] [2021-11-05 12:19:10,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-05 12:19:10,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2021-11-05 12:19:10,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 108 states have (on average 1.2407407407407407) internal successors, (134), 112 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:10,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2021-11-05 12:19:10,482 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 52 [2021-11-05 12:19:10,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:10,483 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2021-11-05 12:19:10,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:10,483 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2021-11-05 12:19:10,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-05 12:19:10,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:10,484 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:10,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 12:19:10,484 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:10,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:10,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1390637791, now seen corresponding path program 1 times [2021-11-05 12:19:10,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:10,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979991017] [2021-11-05 12:19:10,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:10,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:12,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:12,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979991017] [2021-11-05 12:19:12,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979991017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:12,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:12,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:19:12,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105198006] [2021-11-05 12:19:12,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:12,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:19:12,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:12,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:19:12,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:19:12,365 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:14,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:16,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:17,558 INFO L93 Difference]: Finished difference Result 223 states and 265 transitions. [2021-11-05 12:19:17,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 12:19:17,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2021-11-05 12:19:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:17,559 INFO L225 Difference]: With dead ends: 223 [2021-11-05 12:19:17,559 INFO L226 Difference]: Without dead ends: 137 [2021-11-05 12:19:17,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 685.03ms TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-11-05 12:19:17,560 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 373 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4461.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.68ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4679.54ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:17,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [373 Valid, 414 Invalid, 167 Unknown, 0 Unchecked, 3.68ms Time], IncrementalHoareTripleChecker [11 Valid, 154 Invalid, 2 Unknown, 0 Unchecked, 4679.54ms Time] [2021-11-05 12:19:17,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-05 12:19:17,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 111. [2021-11-05 12:19:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 106 states have (on average 1.2358490566037736) internal successors, (131), 110 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:17,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2021-11-05 12:19:17,563 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2021-11-05 12:19:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:17,563 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2021-11-05 12:19:17,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2021-11-05 12:19:17,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 12:19:17,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:17,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:17,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 12:19:17,564 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:17,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1719208235, now seen corresponding path program 1 times [2021-11-05 12:19:17,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:17,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719394437] [2021-11-05 12:19:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:17,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:18,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:18,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719394437] [2021-11-05 12:19:18,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719394437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:18,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:18,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-05 12:19:18,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194266736] [2021-11-05 12:19:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:18,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:19:18,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:18,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:19:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:19:18,260 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:20,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:22,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:24,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:26,608 INFO L93 Difference]: Finished difference Result 301 states and 367 transitions. [2021-11-05 12:19:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 12:19:26,609 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-05 12:19:26,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:26,610 INFO L225 Difference]: With dead ends: 301 [2021-11-05 12:19:26,610 INFO L226 Difference]: Without dead ends: 207 [2021-11-05 12:19:26,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 725.35ms TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:19:26,611 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 287 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7475.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.99ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7889.50ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:26,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 1065 Invalid, 495 Unknown, 0 Unchecked, 6.99ms Time], IncrementalHoareTripleChecker [17 Valid, 475 Invalid, 3 Unknown, 0 Unchecked, 7889.50ms Time] [2021-11-05 12:19:26,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-05 12:19:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 133. [2021-11-05 12:19:26,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 128 states have (on average 1.2265625) internal successors, (157), 132 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:26,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 157 transitions. [2021-11-05 12:19:26,620 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 157 transitions. Word has length 56 [2021-11-05 12:19:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:26,621 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 157 transitions. [2021-11-05 12:19:26,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:26,621 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 157 transitions. [2021-11-05 12:19:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-05 12:19:26,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:26,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:26,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 12:19:26,622 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:26,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:26,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1295561513, now seen corresponding path program 1 times [2021-11-05 12:19:26,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:26,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552463995] [2021-11-05 12:19:26,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:26,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:26,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:26,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:26,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552463995] [2021-11-05 12:19:26,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552463995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:26,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:26,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:19:26,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509456345] [2021-11-05 12:19:26,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:26,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:19:26,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:26,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:19:26,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:19:26,963 INFO L87 Difference]: Start difference. First operand 133 states and 157 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:27,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:27,338 INFO L93 Difference]: Finished difference Result 270 states and 308 transitions. [2021-11-05 12:19:27,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:19:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2021-11-05 12:19:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:27,339 INFO L225 Difference]: With dead ends: 270 [2021-11-05 12:19:27,339 INFO L226 Difference]: Without dead ends: 165 [2021-11-05 12:19:27,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 177.69ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:19:27,340 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 60 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 264.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.42ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 281.42ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:27,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 730 Invalid, 132 Unknown, 0 Unchecked, 1.42ms Time], IncrementalHoareTripleChecker [16 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 281.42ms Time] [2021-11-05 12:19:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-05 12:19:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 133. [2021-11-05 12:19:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 128 states have (on average 1.203125) internal successors, (154), 132 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2021-11-05 12:19:27,345 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 56 [2021-11-05 12:19:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:27,345 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2021-11-05 12:19:27,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:27,345 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2021-11-05 12:19:27,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:19:27,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:27,346 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:27,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 12:19:27,346 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1660893262, now seen corresponding path program 1 times [2021-11-05 12:19:27,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:27,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080162087] [2021-11-05 12:19:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:27,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:27,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:27,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:27,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080162087] [2021-11-05 12:19:27,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080162087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:27,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:27,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:19:27,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946293979] [2021-11-05 12:19:27,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:27,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:19:27,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:27,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:19:27,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:19:27,604 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:29,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:31,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:32,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:32,331 INFO L93 Difference]: Finished difference Result 339 states and 388 transitions. [2021-11-05 12:19:32,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:19:32,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-11-05 12:19:32,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:32,333 INFO L225 Difference]: With dead ends: 339 [2021-11-05 12:19:32,333 INFO L226 Difference]: Without dead ends: 231 [2021-11-05 12:19:32,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 106.81ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:19:32,334 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 180 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4414.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.72ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4653.63ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:32,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 298 Invalid, 154 Unknown, 0 Unchecked, 1.72ms Time], IncrementalHoareTripleChecker [13 Valid, 139 Invalid, 2 Unknown, 0 Unchecked, 4653.63ms Time] [2021-11-05 12:19:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-05 12:19:32,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 144. [2021-11-05 12:19:32,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 139 states have (on average 1.1798561151079137) internal successors, (164), 143 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 164 transitions. [2021-11-05 12:19:32,338 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 164 transitions. Word has length 58 [2021-11-05 12:19:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:32,338 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 164 transitions. [2021-11-05 12:19:32,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:32,339 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 164 transitions. [2021-11-05 12:19:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:19:32,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:32,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:32,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 12:19:32,339 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:32,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:32,340 INFO L85 PathProgramCache]: Analyzing trace with hash 289085964, now seen corresponding path program 1 times [2021-11-05 12:19:32,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:32,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641265741] [2021-11-05 12:19:32,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:32,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:32,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:32,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:32,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641265741] [2021-11-05 12:19:32,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641265741] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:32,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:32,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:19:32,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897438358] [2021-11-05 12:19:32,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:32,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:19:32,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:32,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:19:32,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:19:32,496 INFO L87 Difference]: Start difference. First operand 144 states and 164 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:32,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:32,627 INFO L93 Difference]: Finished difference Result 250 states and 284 transitions. [2021-11-05 12:19:32,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:19:32,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-11-05 12:19:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:32,628 INFO L225 Difference]: With dead ends: 250 [2021-11-05 12:19:32,628 INFO L226 Difference]: Without dead ends: 121 [2021-11-05 12:19:32,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:19:32,629 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 9 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.49ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105.62ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:32,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 316 Invalid, 46 Unknown, 0 Unchecked, 0.49ms Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 105.62ms Time] [2021-11-05 12:19:32,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-11-05 12:19:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 118. [2021-11-05 12:19:32,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 113 states have (on average 1.1415929203539823) internal successors, (129), 117 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2021-11-05 12:19:32,633 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 58 [2021-11-05 12:19:32,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:32,633 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2021-11-05 12:19:32,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:32,633 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2021-11-05 12:19:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:19:32,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:32,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:32,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 12:19:32,633 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1656986322, now seen corresponding path program 1 times [2021-11-05 12:19:32,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:32,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816059325] [2021-11-05 12:19:32,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:32,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:34,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:34,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816059325] [2021-11-05 12:19:34,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816059325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:34,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:34,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:19:34,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656807670] [2021-11-05 12:19:34,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:34,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:19:34,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:34,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:19:34,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:19:34,705 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:36,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:38,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:39,913 INFO L93 Difference]: Finished difference Result 201 states and 220 transitions. [2021-11-05 12:19:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-05 12:19:39,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-11-05 12:19:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:39,914 INFO L225 Difference]: With dead ends: 201 [2021-11-05 12:19:39,915 INFO L226 Difference]: Without dead ends: 126 [2021-11-05 12:19:39,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 747.61ms TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:19:39,915 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 384 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4417.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.22ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4677.87ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:39,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 407 Invalid, 169 Unknown, 0 Unchecked, 2.22ms Time], IncrementalHoareTripleChecker [15 Valid, 152 Invalid, 2 Unknown, 0 Unchecked, 4677.87ms Time] [2021-11-05 12:19:39,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-05 12:19:39,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2021-11-05 12:19:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.1376146788990826) internal successors, (124), 113 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2021-11-05 12:19:39,919 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 58 [2021-11-05 12:19:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:39,919 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2021-11-05 12:19:39,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2021-11-05 12:19:39,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-05 12:19:39,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:39,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:39,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 12:19:39,921 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:39,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:39,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1288031331, now seen corresponding path program 1 times [2021-11-05 12:19:39,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:39,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488428650] [2021-11-05 12:19:39,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:39,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:41,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:41,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:41,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488428650] [2021-11-05 12:19:41,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488428650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:41,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:41,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:19:41,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876766798] [2021-11-05 12:19:41,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:41,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:19:41,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:41,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:19:41,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:19:41,702 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:43,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:45,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:46,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:46,403 INFO L93 Difference]: Finished difference Result 233 states and 252 transitions. [2021-11-05 12:19:46,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:19:46,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-05 12:19:46,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:46,405 INFO L225 Difference]: With dead ends: 233 [2021-11-05 12:19:46,405 INFO L226 Difference]: Without dead ends: 176 [2021-11-05 12:19:46,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 396.55ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:19:46,405 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 515 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4270.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.38ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4475.32ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:46,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 387 Invalid, 105 Unknown, 0 Unchecked, 1.38ms Time], IncrementalHoareTripleChecker [17 Valid, 86 Invalid, 2 Unknown, 0 Unchecked, 4475.32ms Time] [2021-11-05 12:19:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-05 12:19:46,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 114. [2021-11-05 12:19:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.128440366972477) internal successors, (123), 113 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2021-11-05 12:19:46,409 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 64 [2021-11-05 12:19:46,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:46,410 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2021-11-05 12:19:46,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2021-11-05 12:19:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-05 12:19:46,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:46,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:46,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 12:19:46,411 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:46,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2014332392, now seen corresponding path program 1 times [2021-11-05 12:19:46,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:46,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652153938] [2021-11-05 12:19:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:46,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:50,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:50,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652153938] [2021-11-05 12:19:50,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652153938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:50,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:50,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:19:50,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439281362] [2021-11-05 12:19:50,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:50,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:19:50,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:50,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:19:50,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:19:50,206 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:52,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:54,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:19:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:55,266 INFO L93 Difference]: Finished difference Result 228 states and 244 transitions. [2021-11-05 12:19:55,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:19:55,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2021-11-05 12:19:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:55,267 INFO L225 Difference]: With dead ends: 228 [2021-11-05 12:19:55,267 INFO L226 Difference]: Without dead ends: 167 [2021-11-05 12:19:55,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 603.56ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:19:55,268 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 486 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4415.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.02ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4663.30ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:55,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [486 Valid, 321 Invalid, 145 Unknown, 0 Unchecked, 2.02ms Time], IncrementalHoareTripleChecker [23 Valid, 120 Invalid, 2 Unknown, 0 Unchecked, 4663.30ms Time] [2021-11-05 12:19:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-05 12:19:55,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 114. [2021-11-05 12:19:55,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 109 states have (on average 1.1192660550458715) internal successors, (122), 113 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2021-11-05 12:19:55,272 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 70 [2021-11-05 12:19:55,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:55,272 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2021-11-05 12:19:55,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:55,272 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2021-11-05 12:19:55,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 12:19:55,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:55,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:55,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-05 12:19:55,273 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:55,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:55,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1933601813, now seen corresponding path program 1 times [2021-11-05 12:19:55,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:55,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77268646] [2021-11-05 12:19:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:55,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:19:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:19:55,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:19:55,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77268646] [2021-11-05 12:19:55,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77268646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:19:55,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:19:55,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 12:19:55,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512087458] [2021-11-05 12:19:55,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:19:55,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:19:55,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:19:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:19:55,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:19:55,525 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:19:55,552 INFO L93 Difference]: Finished difference Result 177 states and 190 transitions. [2021-11-05 12:19:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:19:55,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-11-05 12:19:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:19:55,554 INFO L225 Difference]: With dead ends: 177 [2021-11-05 12:19:55,554 INFO L226 Difference]: Without dead ends: 116 [2021-11-05 12:19:55,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:19:55,554 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.18ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.44ms IncrementalHoareTripleChecker+Time [2021-11-05 12:19:55,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 213 Invalid, 6 Unknown, 0 Unchecked, 0.18ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 22.44ms Time] [2021-11-05 12:19:55,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-05 12:19:55,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2021-11-05 12:19:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 114 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 123 transitions. [2021-11-05 12:19:55,560 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 123 transitions. Word has length 71 [2021-11-05 12:19:55,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:19:55,561 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 123 transitions. [2021-11-05 12:19:55,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:19:55,561 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 123 transitions. [2021-11-05 12:19:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 12:19:55,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:19:55,562 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:19:55,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-05 12:19:55,562 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-05 12:19:55,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:19:55,563 INFO L85 PathProgramCache]: Analyzing trace with hash 459517097, now seen corresponding path program 1 times [2021-11-05 12:19:55,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:19:55,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676034799] [2021-11-05 12:19:55,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:19:55,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:19:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:20:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:20:00,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:20:00,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676034799] [2021-11-05 12:20:00,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676034799] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:20:00,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4701889] [2021-11-05 12:20:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:20:00,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:20:00,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:20:00,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:20:00,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:20:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:20:01,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 87 conjunts are in the unsatisfiable core [2021-11-05 12:20:01,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:20:01,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 12:20:01,735 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:20:01,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-05 12:20:01,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-05 12:20:01,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-05 12:20:02,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:20:02,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 8 [2021-11-05 12:20:03,277 INFO L354 Elim1Store]: treesize reduction 168, result has 18.0 percent of original size [2021-11-05 12:20:03,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 130 treesize of output 156 [2021-11-05 12:20:03,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2021-11-05 12:20:03,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 23 [2021-11-05 12:20:03,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 25 [2021-11-05 12:20:03,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 25 [2021-11-05 12:20:03,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 78 [2021-11-05 12:20:03,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 40 [2021-11-05 12:20:04,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 47 [2021-11-05 12:20:05,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 92 [2021-11-05 12:20:39,633 INFO L354 Elim1Store]: treesize reduction 318, result has 12.9 percent of original size [2021-11-05 12:20:39,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 404 treesize of output 257 [2021-11-05 12:20:44,430 INFO L354 Elim1Store]: treesize reduction 134, result has 43.0 percent of original size [2021-11-05 12:20:44,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 425 treesize of output 317 [2021-11-05 12:20:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:20:45,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:20:49,876 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~c_39 Int)) (or (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse0 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (- 18446744073709551616) (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse0 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse0) 18446744073709551616))))) (<= aux_mod_ULTIMATE.start_memset_impl_~i~6_58 9223372036854775807) (<= 18446744073709551616 aux_mod_ULTIMATE.start_memset_impl_~i~6_58))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse1 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse1 (+ (* 18446744073709551616 (div (+ (- 1) .cse1) 18446744073709551616)) 18446744073709551615))) (< aux_mod_ULTIMATE.start_memset_impl_~i~6_58 0) (< 9223372036854775807 aux_mod_ULTIMATE.start_memset_impl_~i~6_58)))) (< 127 aux_mod_ULTIMATE.start_memset_impl_~c_39) (< aux_mod_ULTIMATE.start_memset_impl_~c_39 0))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~c_39 Int)) (or (<= 256 aux_mod_ULTIMATE.start_memset_impl_~c_39) (<= aux_mod_ULTIMATE.start_memset_impl_~c_39 127) (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse2 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (+ (- 256) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256)))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse2 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse2) 18446744073709551616))))) (< aux_mod_ULTIMATE.start_memset_impl_~i~6_58 0) (< 9223372036854775807 aux_mod_ULTIMATE.start_memset_impl_~i~6_58))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse3 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~sp~0.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (- 18446744073709551616) (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (+ (- 256) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256)))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse3 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse3) 18446744073709551616))))) (<= aux_mod_ULTIMATE.start_memset_impl_~i~6_58 9223372036854775807) (<= 18446744073709551616 aux_mod_ULTIMATE.start_memset_impl_~i~6_58))))))) is different from false [2021-11-05 12:20:52,534 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~c_39 Int)) (or (<= 256 aux_mod_ULTIMATE.start_memset_impl_~c_39) (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse0 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (+ (- 256) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256)))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse0 (+ 18446744073709551615 (* 18446744073709551616 (div (+ .cse0 (- 1)) 18446744073709551616))))) (< aux_mod_ULTIMATE.start_memset_impl_~i~6_58 0) (< 9223372036854775807 aux_mod_ULTIMATE.start_memset_impl_~i~6_58))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse1 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (- 18446744073709551616) (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (+ (- 256) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256)))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse1 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse1) 18446744073709551616))))) (<= aux_mod_ULTIMATE.start_memset_impl_~i~6_58 9223372036854775807) (<= 18446744073709551616 aux_mod_ULTIMATE.start_memset_impl_~i~6_58)))) (<= aux_mod_ULTIMATE.start_memset_impl_~c_39 127))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~c_39 Int)) (or (and (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse2 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (- 18446744073709551616) (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse2 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse2) 18446744073709551616))))) (<= aux_mod_ULTIMATE.start_memset_impl_~i~6_58 9223372036854775807) (<= 18446744073709551616 aux_mod_ULTIMATE.start_memset_impl_~i~6_58))) (forall ((aux_mod_ULTIMATE.start_memset_impl_~i~6_58 Int) (ULTIMATE.start_memset_impl_~sp~0.offset Int)) (or (let ((.cse3 (select (store (select (store |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base (store (select |c_#memory_int| c_ULTIMATE.start_memset_impl_~s.base) (+ ULTIMATE.start_memset_impl_~sp~0.offset (mod aux_mod_ULTIMATE.start_memset_impl_~i~6_58 18446744073709551616)) (mod aux_mod_ULTIMATE.start_memset_impl_~c_39 256))) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.base) c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 0) (+ c_ULTIMATE.start_aws_byte_buf_secure_zero_~buf.offset 16)))) (<= .cse3 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse3) 18446744073709551616))))) (< aux_mod_ULTIMATE.start_memset_impl_~i~6_58 0) (< 9223372036854775807 aux_mod_ULTIMATE.start_memset_impl_~i~6_58)))) (< 127 aux_mod_ULTIMATE.start_memset_impl_~c_39) (< aux_mod_ULTIMATE.start_memset_impl_~c_39 0)))) is different from false [2021-11-05 12:21:18,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 335 [2021-11-05 12:21:19,718 INFO L354 Elim1Store]: treesize reduction 362, result has 46.2 percent of original size [2021-11-05 12:21:19,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 505 treesize of output 533 [2021-11-05 12:21:19,822 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:21:19,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 533 treesize of output 547 [2021-11-05 12:21:19,935 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:21:19,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 547 treesize of output 561 [2021-11-05 12:21:20,111 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-05 12:21:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 561 treesize of output 567 [2021-11-05 12:21:20,338 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-05 12:21:20,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 567 treesize of output 573 [2021-11-05 12:21:55,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-05 12:22:10,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-05 12:22:24,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2021-11-05 12:24:02,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-05 12:24:02,813 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:24:02,813 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 30 treesize of output 34 [2021-11-05 12:24:03,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-05 12:24:03,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-05 12:24:03,386 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:24:03,386 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 32 treesize of output 36 [2021-11-05 12:24:10,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-05 12:24:10,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:24:10,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2021-11-05 12:24:11,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-05 12:24:11,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:24:11,648 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 32 treesize of output 36 [2021-11-05 12:24:12,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2021-11-05 12:24:38,527 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:24:38,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1865 treesize of output 2023 Killed by 15