./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_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_write_be32_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 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:28:15,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:28:15,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:28:15,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:28:15,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:28:15,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:28:15,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:28:15,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:28:15,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:28:15,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:28:15,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:28:15,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:28:15,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:28:15,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:28:15,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:28:16,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:28:16,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:28:16,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:28:16,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:28:16,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:28:16,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:28:16,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:28:16,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:28:16,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:28:16,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:28:16,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:28:16,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:28:16,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:28:16,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:28:16,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:28:16,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:28:16,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:28:16,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:28:16,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:28:16,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:28:16,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:28:16,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:28:16,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:28:16,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:28:16,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:28:16,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:28:16,036 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:28:16,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:28:16,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:28:16,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:28:16,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:28:16,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:28:16,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:28:16,070 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:28:16,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:28:16,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:28:16,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:28:16,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:28:16,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:28:16,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:28:16,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:28:16,072 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:28:16,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:28:16,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:28:16,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:28:16,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:28:16,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:28:16,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:28:16,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:28:16,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:28:16,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:28:16,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:28:16,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:28:16,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:28:16,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:28:16,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:28:16,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-05 12:28:16,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:28:16,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:28:16,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:28:16,373 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:28:16,374 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:28:16,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-05 12:28:16,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae3491b0/76a16ae1234d48e0aa9fab3b1e050984/FLAG5247490fe [2021-11-05 12:28:17,146 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:28:17,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-05 12:28:17,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae3491b0/76a16ae1234d48e0aa9fab3b1e050984/FLAG5247490fe [2021-11-05 12:28:17,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ae3491b0/76a16ae1234d48e0aa9fab3b1e050984 [2021-11-05 12:28:17,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:28:17,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:28:17,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:28:17,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:28:17,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:28:17,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:28:17" (1/1) ... [2021-11-05 12:28:17,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a99f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:17, skipping insertion in model container [2021-11-05 12:28:17,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:28:17" (1/1) ... [2021-11-05 12:28:17,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:28:17,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:28:17,653 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_write_be32_harness.i[4497,4510] [2021-11-05 12:28:17,660 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_write_be32_harness.i[4557,4570] [2021-11-05 12:28:17,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:28:17,682 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:28:18,341 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,345 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,347 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,348 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,365 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,366 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,367 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,616 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:28:18,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:28:18,618 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:28:18,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:28:18,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:28:18,622 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:28:18,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:28:18,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:28:18,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:28:18,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:28:18,728 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:28:18,825 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,830 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:18,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:28:18,964 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:28:18,987 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_write_be32_harness.i[4497,4510] [2021-11-05 12:28:18,989 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_write_be32_harness.i[4557,4570] [2021-11-05 12:28:18,992 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:28:18,993 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:28:19,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,036 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,037 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,049 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,051 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,084 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:28:19,085 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:28:19,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:28:19,086 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:28:19,087 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:28:19,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:28:19,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:28:19,088 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:28:19,089 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:28:19,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:28:19,132 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:28:19,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,170 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:28:19,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:28:19,427 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:28:19,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19 WrapperNode [2021-11-05 12:28:19,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:28:19,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:28:19,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:28:19,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:28:19,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:28:19,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:28:19,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:28:19,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:28:19,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:28:19,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:28:19,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:28:19,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:28:19,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (1/1) ... [2021-11-05 12:28:19,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:28:19,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:28:19,784 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 12:28:19,806 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 12:28:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-05 12:28:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:28:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:28:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:28:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:28:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:28:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:28:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:28:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:28:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:28:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:28:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:28:28,476 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:28:28,477 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-05 12:28:28,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:28:28 BoogieIcfgContainer [2021-11-05 12:28:28,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:28:28,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:28:28,480 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:28:28,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:28:28,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:28:17" (1/3) ... [2021-11-05 12:28:28,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1375b011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:28:28, skipping insertion in model container [2021-11-05 12:28:28,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:28:19" (2/3) ... [2021-11-05 12:28:28,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1375b011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:28:28, skipping insertion in model container [2021-11-05 12:28:28,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:28:28" (3/3) ... [2021-11-05 12:28:28,485 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be32_harness.i [2021-11-05 12:28:28,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:28:28,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 12:28:28,531 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:28:28,537 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 12:28:28,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 12:28:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 0 states have call successors, (0), 0 states 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 12:28:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 12:28:28,568 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:28,569 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] [2021-11-05 12:28:28,569 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 733514216, now seen corresponding path program 1 times [2021-11-05 12:28:28,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:28,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128902388] [2021-11-05 12:28:28,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:28,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:29,223 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 12:28:29,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:29,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128902388] [2021-11-05 12:28:29,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128902388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:29,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:29,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:28:29,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73739064] [2021-11-05 12:28:29,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:29,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:28:29,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:29,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:28:29,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:28:29,261 INFO L87 Difference]: Start difference. First operand has 186 states, 174 states have (on average 1.4827586206896552) internal successors, (258), 185 states have internal predecessors, (258), 0 states have call successors, (0), 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 12:28:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:29,308 INFO L93 Difference]: Finished difference Result 368 states and 511 transitions. [2021-11-05 12:28:29,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:28:29,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-05 12:28:29,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:29,318 INFO L225 Difference]: With dead ends: 368 [2021-11-05 12:28:29,318 INFO L226 Difference]: Without dead ends: 181 [2021-11-05 12:28:29,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.05ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:28:29,325 INFO L933 BasicCegarLoop]: 236 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, 236 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:29,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 4.80ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:28:29,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-05 12:28:29,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-05 12:28:29,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3588235294117648) internal successors, (231), 180 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 12:28:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-11-05 12:28:29,361 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 39 [2021-11-05 12:28:29,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:29,362 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-11-05 12:28:29,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 12:28:29,362 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-11-05 12:28:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-05 12:28:29,364 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:29,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:28:29,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:28:29,364 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:29,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:29,365 INFO L85 PathProgramCache]: Analyzing trace with hash 699508844, now seen corresponding path program 1 times [2021-11-05 12:28:29,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:29,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198820216] [2021-11-05 12:28:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:29,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:29,666 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 12:28:29,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:29,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198820216] [2021-11-05 12:28:29,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198820216] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:29,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:29,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:28:29,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191901734] [2021-11-05 12:28:29,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:29,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:28:29,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:29,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:28:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:28:29,669 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 12:28:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:29,922 INFO L93 Difference]: Finished difference Result 336 states and 428 transitions. [2021-11-05 12:28:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:28:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 39 [2021-11-05 12:28:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:29,924 INFO L225 Difference]: With dead ends: 336 [2021-11-05 12:28:29,924 INFO L226 Difference]: Without dead ends: 181 [2021-11-05 12:28:29,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.82ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:28:29,926 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 322 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.45ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 200.43ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:29,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 310 Invalid, 43 Unknown, 0 Unchecked, 4.45ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 200.43ms Time] [2021-11-05 12:28:29,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-05 12:28:29,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-05 12:28:29,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 180 states have internal predecessors, (228), 0 states have call successors, (0), 0 states 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 12:28:29,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2021-11-05 12:28:29,936 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 39 [2021-11-05 12:28:29,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:29,936 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2021-11-05 12:28:29,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states 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 12:28:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2021-11-05 12:28:29,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 12:28:29,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:29,938 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:28:29,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:28:29,939 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:29,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:29,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1277536330, now seen corresponding path program 1 times [2021-11-05 12:28:29,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:29,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307672957] [2021-11-05 12:28:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:29,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:30,226 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 12:28:30,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:30,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307672957] [2021-11-05 12:28:30,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307672957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:30,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:30,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:28:30,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145758538] [2021-11-05 12:28:30,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:30,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:28:30,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:30,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:28:30,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:28:30,228 INFO L87 Difference]: Start difference. First operand 181 states and 228 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:28:30,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:30,671 INFO L93 Difference]: Finished difference Result 397 states and 508 transitions. [2021-11-05 12:28:30,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:28:30,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-05 12:28:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:30,675 INFO L225 Difference]: With dead ends: 397 [2021-11-05 12:28:30,675 INFO L226 Difference]: Without dead ends: 241 [2021-11-05 12:28:30,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.65ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:28:30,676 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 138 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 339.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.79ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 375.28ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:30,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 602 Invalid, 121 Unknown, 0 Unchecked, 3.79ms Time], IncrementalHoareTripleChecker [21 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 375.28ms Time] [2021-11-05 12:28:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-05 12:28:30,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2021-11-05 12:28:30,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3186813186813187) internal successors, (240), 192 states have internal predecessors, (240), 0 states have call successors, (0), 0 states 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 12:28:30,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2021-11-05 12:28:30,695 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 51 [2021-11-05 12:28:30,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:30,696 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2021-11-05 12:28:30,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:28:30,699 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2021-11-05 12:28:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-05 12:28:30,700 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:30,700 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:28:30,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:28:30,701 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:30,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:30,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1671903116, now seen corresponding path program 1 times [2021-11-05 12:28:30,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:30,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094375310] [2021-11-05 12:28:30,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:30,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:31,076 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 12:28:31,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:31,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094375310] [2021-11-05 12:28:31,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094375310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:31,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:31,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:28:31,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385012321] [2021-11-05 12:28:31,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:31,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:28:31,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:31,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:28:31,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:28:31,079 INFO L87 Difference]: Start difference. First operand 193 states and 240 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:28:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:31,325 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2021-11-05 12:28:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:28:31,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-05 12:28:31,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:31,327 INFO L225 Difference]: With dead ends: 314 [2021-11-05 12:28:31,327 INFO L226 Difference]: Without dead ends: 193 [2021-11-05 12:28:31,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 126.78ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:28:31,328 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 482 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.19ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 152.74ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:31,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 345 Invalid, 45 Unknown, 0 Unchecked, 2.19ms Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 152.74ms Time] [2021-11-05 12:28:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-05 12:28:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-05 12:28:31,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3131868131868132) internal successors, (239), 192 states have internal predecessors, (239), 0 states have call successors, (0), 0 states 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 12:28:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 239 transitions. [2021-11-05 12:28:31,336 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 239 transitions. Word has length 51 [2021-11-05 12:28:31,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:31,336 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 239 transitions. [2021-11-05 12:28:31,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:28:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 239 transitions. [2021-11-05 12:28:31,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 12:28:31,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:31,340 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] [2021-11-05 12:28:31,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:28:31,344 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:31,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:31,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1284348023, now seen corresponding path program 1 times [2021-11-05 12:28:31,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:31,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25552987] [2021-11-05 12:28:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:31,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:31,700 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 12:28:31,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:31,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25552987] [2021-11-05 12:28:31,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25552987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:31,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:31,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:28:31,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144528528] [2021-11-05 12:28:31,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:31,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:28:31,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:31,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:28:31,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:28:31,702 INFO L87 Difference]: Start difference. First operand 193 states and 239 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 12:28:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:32,055 INFO L93 Difference]: Finished difference Result 265 states and 320 transitions. [2021-11-05 12:28:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:28:32,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-05 12:28:32,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:32,057 INFO L225 Difference]: With dead ends: 265 [2021-11-05 12:28:32,057 INFO L226 Difference]: Without dead ends: 193 [2021-11-05 12:28:32,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 218.45ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:28:32,059 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 624 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.75ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 193.08ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:32,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 393 Invalid, 58 Unknown, 0 Unchecked, 2.75ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 193.08ms Time] [2021-11-05 12:28:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-05 12:28:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-05 12:28:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 192 states have internal predecessors, (237), 0 states have call successors, (0), 0 states 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 12:28:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 237 transitions. [2021-11-05 12:28:32,065 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 237 transitions. Word has length 57 [2021-11-05 12:28:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:32,065 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 237 transitions. [2021-11-05 12:28:32,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states 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 12:28:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 237 transitions. [2021-11-05 12:28:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-05 12:28:32,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:32,067 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] [2021-11-05 12:28:32,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:28:32,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash 718341164, now seen corresponding path program 1 times [2021-11-05 12:28:32,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:32,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883095147] [2021-11-05 12:28:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:32,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:32,699 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 12:28:32,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:32,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883095147] [2021-11-05 12:28:32,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883095147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:32,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:32,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:28:32,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751256026] [2021-11-05 12:28:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:32,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:28:32,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:32,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:28:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:28:32,702 INFO L87 Difference]: Start difference. First operand 193 states and 237 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 12:28:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:33,427 INFO L93 Difference]: Finished difference Result 310 states and 367 transitions. [2021-11-05 12:28:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:28:33,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2021-11-05 12:28:33,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:33,430 INFO L225 Difference]: With dead ends: 310 [2021-11-05 12:28:33,430 INFO L226 Difference]: Without dead ends: 297 [2021-11-05 12:28:33,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 246.14ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:28:33,431 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 228 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 511.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.09ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 549.42ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:33,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 851 Invalid, 201 Unknown, 0 Unchecked, 5.09ms Time], IncrementalHoareTripleChecker [40 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 549.42ms Time] [2021-11-05 12:28:33,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-05 12:28:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 199. [2021-11-05 12:28:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 188 states have (on average 1.2872340425531914) internal successors, (242), 198 states have internal predecessors, (242), 0 states have call successors, (0), 0 states 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 12:28:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 242 transitions. [2021-11-05 12:28:33,438 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 242 transitions. Word has length 63 [2021-11-05 12:28:33,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:33,438 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 242 transitions. [2021-11-05 12:28:33,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 12:28:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 242 transitions. [2021-11-05 12:28:33,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 12:28:33,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:33,440 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] [2021-11-05 12:28:33,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:28:33,441 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1235696670, now seen corresponding path program 1 times [2021-11-05 12:28:33,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:33,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780089069] [2021-11-05 12:28:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:33,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:34,006 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 12:28:34,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:34,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780089069] [2021-11-05 12:28:34,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780089069] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:34,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:34,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:28:34,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957365662] [2021-11-05 12:28:34,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:34,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:28:34,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:34,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:28:34,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:28:34,008 INFO L87 Difference]: Start difference. First operand 199 states and 242 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:36,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:38,170 WARN L515 Checker$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 12:28:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:39,377 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2021-11-05 12:28:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:28:39,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-05 12:28:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:39,380 INFO L225 Difference]: With dead ends: 595 [2021-11-05 12:28:39,380 INFO L226 Difference]: Without dead ends: 418 [2021-11-05 12:28:39,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 119.00ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:28:39,381 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 386 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4994.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.43ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5258.85ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:39,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 567 Invalid, 299 Unknown, 0 Unchecked, 6.43ms Time], IncrementalHoareTripleChecker [27 Valid, 270 Invalid, 2 Unknown, 0 Unchecked, 5258.85ms Time] [2021-11-05 12:28:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-05 12:28:39,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 239. [2021-11-05 12:28:39,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 238 states have internal predecessors, (293), 0 states have call successors, (0), 0 states 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 12:28:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 293 transitions. [2021-11-05 12:28:39,390 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 293 transitions. Word has length 67 [2021-11-05 12:28:39,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:39,390 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 293 transitions. [2021-11-05 12:28:39,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:39,390 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 293 transitions. [2021-11-05 12:28:39,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 12:28:39,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:39,392 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] [2021-11-05 12:28:39,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 12:28:39,392 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:39,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash -555638300, now seen corresponding path program 1 times [2021-11-05 12:28:39,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:39,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095856847] [2021-11-05 12:28:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:39,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:40,308 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 12:28:40,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:40,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095856847] [2021-11-05 12:28:40,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095856847] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:40,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:40,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:28:40,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327089057] [2021-11-05 12:28:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:40,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:28:40,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:28:40,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:28:40,310 INFO L87 Difference]: Start difference. First operand 239 states and 293 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:42,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:44,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:45,796 INFO L93 Difference]: Finished difference Result 505 states and 610 transitions. [2021-11-05 12:28:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:28:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-05 12:28:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:45,798 INFO L225 Difference]: With dead ends: 505 [2021-11-05 12:28:45,798 INFO L226 Difference]: Without dead ends: 366 [2021-11-05 12:28:45,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 428.49ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:28:45,813 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 528 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4872.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.73ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5222.91ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:45,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 748 Invalid, 289 Unknown, 0 Unchecked, 5.73ms Time], IncrementalHoareTripleChecker [25 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 5222.91ms Time] [2021-11-05 12:28:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-05 12:28:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 254. [2021-11-05 12:28:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 243 states have (on average 1.2798353909465021) internal successors, (311), 253 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 12:28:45,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 311 transitions. [2021-11-05 12:28:45,827 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 311 transitions. Word has length 67 [2021-11-05 12:28:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:45,828 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 311 transitions. [2021-11-05 12:28:45,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:45,828 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 311 transitions. [2021-11-05 12:28:45,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 12:28:45,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:45,829 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] [2021-11-05 12:28:45,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 12:28:45,830 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2143986202, now seen corresponding path program 1 times [2021-11-05 12:28:45,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:45,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729804663] [2021-11-05 12:28:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:45,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:28:46,903 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 12:28:46,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:28:46,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729804663] [2021-11-05 12:28:46,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729804663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:28:46,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:28:46,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:28:46,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843979306] [2021-11-05 12:28:46,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:28:46,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:28:46,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:28:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:28:46,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:28:46,905 INFO L87 Difference]: Start difference. First operand 254 states and 311 transitions. Second operand has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:48,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:51,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:53,225 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:55,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:28:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:28:57,402 INFO L93 Difference]: Finished difference Result 455 states and 547 transitions. [2021-11-05 12:28:57,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:28:57,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-05 12:28:57,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:28:57,404 INFO L225 Difference]: With dead ends: 455 [2021-11-05 12:28:57,404 INFO L226 Difference]: Without dead ends: 377 [2021-11-05 12:28:57,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 671.70ms TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-11-05 12:28:57,406 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 716 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 39 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9508.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.59ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10084.13ms IncrementalHoareTripleChecker+Time [2021-11-05 12:28:57,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 1231 Invalid, 566 Unknown, 0 Unchecked, 8.59ms Time], IncrementalHoareTripleChecker [39 Valid, 523 Invalid, 4 Unknown, 0 Unchecked, 10084.13ms Time] [2021-11-05 12:28:57,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-05 12:28:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 259. [2021-11-05 12:28:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 248 states have (on average 1.282258064516129) internal successors, (318), 258 states have internal predecessors, (318), 0 states have call successors, (0), 0 states 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 12:28:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 318 transitions. [2021-11-05 12:28:57,415 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 318 transitions. Word has length 67 [2021-11-05 12:28:57,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:28:57,415 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 318 transitions. [2021-11-05 12:28:57,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.7) internal successors, (67), 10 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:28:57,415 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 318 transitions. [2021-11-05 12:28:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 12:28:57,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:28:57,416 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] [2021-11-05 12:28:57,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 12:28:57,417 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:28:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:28:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1892815656, now seen corresponding path program 1 times [2021-11-05 12:28:57,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:28:57,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033694405] [2021-11-05 12:28:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:28:57,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:28:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:29:00,256 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 12:29:00,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:29:00,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033694405] [2021-11-05 12:29:00,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033694405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:29:00,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:29:00,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:29:00,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366604012] [2021-11-05 12:29:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:29:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:29:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:29:00,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:29:00,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:29:00,258 INFO L87 Difference]: Start difference. First operand 259 states and 318 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:29:02,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:03,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:29:03,635 INFO L93 Difference]: Finished difference Result 552 states and 681 transitions. [2021-11-05 12:29:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 12:29:03,636 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-05 12:29:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:29:03,637 INFO L225 Difference]: With dead ends: 552 [2021-11-05 12:29:03,637 INFO L226 Difference]: Without dead ends: 327 [2021-11-05 12:29:03,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 495.47ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:29:03,638 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 700 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2863.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3039.49ms IncrementalHoareTripleChecker+Time [2021-11-05 12:29:03,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 944 Invalid, 299 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [26 Valid, 272 Invalid, 1 Unknown, 0 Unchecked, 3039.49ms Time] [2021-11-05 12:29:03,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-11-05 12:29:03,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 262. [2021-11-05 12:29:03,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 251 states have (on average 1.2828685258964143) internal successors, (322), 261 states have internal predecessors, (322), 0 states have call successors, (0), 0 states 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 12:29:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 322 transitions. [2021-11-05 12:29:03,648 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 322 transitions. Word has length 67 [2021-11-05 12:29:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:29:03,648 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 322 transitions. [2021-11-05 12:29:03,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states 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 12:29:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 322 transitions. [2021-11-05 12:29:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 12:29:03,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:29:03,649 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, 1] [2021-11-05 12:29:03,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 12:29:03,649 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:29:03,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:29:03,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2013763211, now seen corresponding path program 1 times [2021-11-05 12:29:03,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:29:03,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432990927] [2021-11-05 12:29:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:29:03,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:29:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:29:05,679 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 12:29:05,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:29:05,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432990927] [2021-11-05 12:29:05,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432990927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:29:05,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:29:05,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-05 12:29:05,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152958825] [2021-11-05 12:29:05,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:29:05,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-05 12:29:05,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:29:05,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-05 12:29:05,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-11-05 12:29:05,682 INFO L87 Difference]: Start difference. First operand 262 states and 322 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:29:07,726 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:09,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:11,961 WARN L515 Checker$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 12:29:14,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:16,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:18,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:20,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:22,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:24,674 WARN L515 Checker$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 12:29:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:29:33,400 INFO L93 Difference]: Finished difference Result 928 states and 1133 transitions. [2021-11-05 12:29:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-05 12:29:33,400 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-05 12:29:33,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:29:33,403 INFO L225 Difference]: With dead ends: 928 [2021-11-05 12:29:33,403 INFO L226 Difference]: Without dead ends: 686 [2021-11-05 12:29:33,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 4028.25ms TimeCoverageRelationStatistics Valid=503, Invalid=2359, Unknown=0, NotChecked=0, Total=2862 [2021-11-05 12:29:33,405 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1602 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 103 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23239.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.33ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24562.64ms IncrementalHoareTripleChecker+Time [2021-11-05 12:29:33,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 4471 Invalid, 2026 Unknown, 0 Unchecked, 21.33ms Time], IncrementalHoareTripleChecker [103 Valid, 1914 Invalid, 9 Unknown, 0 Unchecked, 24562.64ms Time] [2021-11-05 12:29:33,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-11-05 12:29:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 341. [2021-11-05 12:29:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 330 states have (on average 1.2363636363636363) internal successors, (408), 340 states have internal predecessors, (408), 0 states have call successors, (0), 0 states 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 12:29:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 408 transitions. [2021-11-05 12:29:33,419 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 408 transitions. Word has length 74 [2021-11-05 12:29:33,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:29:33,420 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 408 transitions. [2021-11-05 12:29:33,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 21 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:29:33,420 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 408 transitions. [2021-11-05 12:29:33,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 12:29:33,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:29:33,421 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, 1] [2021-11-05 12:29:33,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-05 12:29:33,422 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:29:33,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:29:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1453063433, now seen corresponding path program 1 times [2021-11-05 12:29:33,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:29:33,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930186014] [2021-11-05 12:29:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:29:33,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:29:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:29:34,284 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 12:29:34,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:29:34,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930186014] [2021-11-05 12:29:34,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930186014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:29:34,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:29:34,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:29:34,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526611488] [2021-11-05 12:29:34,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:29:34,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:29:34,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:29:34,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:29:34,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:29:34,286 INFO L87 Difference]: Start difference. First operand 341 states and 408 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:29:36,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:37,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:29:37,836 INFO L93 Difference]: Finished difference Result 823 states and 976 transitions. [2021-11-05 12:29:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:29:37,837 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-05 12:29:37,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:29:37,839 INFO L225 Difference]: With dead ends: 823 [2021-11-05 12:29:37,839 INFO L226 Difference]: Without dead ends: 613 [2021-11-05 12:29:37,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 486.55ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:29:37,840 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 534 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3055.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.44ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3247.89ms IncrementalHoareTripleChecker+Time [2021-11-05 12:29:37,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 1106 Invalid, 353 Unknown, 0 Unchecked, 5.44ms Time], IncrementalHoareTripleChecker [32 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 3247.89ms Time] [2021-11-05 12:29:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-05 12:29:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 352. [2021-11-05 12:29:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 341 states have (on average 1.2346041055718475) internal successors, (421), 351 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 12:29:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 421 transitions. [2021-11-05 12:29:37,855 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 421 transitions. Word has length 74 [2021-11-05 12:29:37,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:29:37,855 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 421 transitions. [2021-11-05 12:29:37,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:29:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 421 transitions. [2021-11-05 12:29:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 12:29:37,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:29:37,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:37,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-05 12:29:37,857 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:29:37,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:29:37,857 INFO L85 PathProgramCache]: Analyzing trace with hash -360304177, now seen corresponding path program 1 times [2021-11-05 12:29:37,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:29:37,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473942564] [2021-11-05 12:29:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:29:37,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:29:38,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:29:39,687 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 12:29:39,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:29:39,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473942564] [2021-11-05 12:29:39,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473942564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:29:39,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:29:39,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-05 12:29:39,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464257643] [2021-11-05 12:29:39,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:29:39,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-05 12:29:39,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:29:39,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-05 12:29:39,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:29:39,690 INFO L87 Difference]: Start difference. First operand 352 states and 421 transitions. Second operand has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:29:41,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:43,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:45,975 WARN L515 Checker$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 12:29:48,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:50,199 WARN L515 Checker$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 12:29:52,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:54,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:56,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:29:58,636 WARN L515 Checker$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 12:30:00,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:02,879 WARN L515 Checker$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 12:30:05,022 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:14,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:14,459 INFO L93 Difference]: Finished difference Result 1013 states and 1211 transitions. [2021-11-05 12:30:14,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-05 12:30:14,460 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-05 12:30:14,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:14,462 INFO L225 Difference]: With dead ends: 1013 [2021-11-05 12:30:14,462 INFO L226 Difference]: Without dead ends: 814 [2021-11-05 12:30:14,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 4272.15ms TimeCoverageRelationStatistics Valid=652, Invalid=2888, Unknown=0, NotChecked=0, Total=3540 [2021-11-05 12:30:14,465 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1384 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 88 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29585.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.81ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31298.39ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:14,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 4500 Invalid, 2195 Unknown, 0 Unchecked, 23.81ms Time], IncrementalHoareTripleChecker [88 Valid, 2095 Invalid, 12 Unknown, 0 Unchecked, 31298.39ms Time] [2021-11-05 12:30:14,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-11-05 12:30:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 354. [2021-11-05 12:30:14,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 343 states have (on average 1.2361516034985423) internal successors, (424), 353 states have internal predecessors, (424), 0 states have call successors, (0), 0 states 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 12:30:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 424 transitions. [2021-11-05 12:30:14,479 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 424 transitions. Word has length 74 [2021-11-05 12:30:14,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:14,480 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 424 transitions. [2021-11-05 12:30:14,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.7) internal successors, (74), 20 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:30:14,480 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 424 transitions. [2021-11-05 12:30:14,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 12:30:14,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:14,481 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, 1] [2021-11-05 12:30:14,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 12:30:14,482 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:14,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -319629427, now seen corresponding path program 1 times [2021-11-05 12:30:14,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:14,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792183032] [2021-11-05 12:30:14,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:14,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:14,956 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 12:30:14,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:14,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792183032] [2021-11-05 12:30:14,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792183032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:14,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:14,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:30:14,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821721662] [2021-11-05 12:30:14,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:14,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:30:14,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:14,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:30:14,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:30:14,957 INFO L87 Difference]: Start difference. First operand 354 states and 424 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:30:17,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:17,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:17,946 INFO L93 Difference]: Finished difference Result 783 states and 933 transitions. [2021-11-05 12:30:17,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:30:17,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-05 12:30:17,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:17,948 INFO L225 Difference]: With dead ends: 783 [2021-11-05 12:30:17,948 INFO L226 Difference]: Without dead ends: 497 [2021-11-05 12:30:17,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 84.78ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:30:17,949 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 321 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2720.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.28ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2931.66ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:17,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 745 Invalid, 252 Unknown, 0 Unchecked, 3.28ms Time], IncrementalHoareTripleChecker [32 Valid, 219 Invalid, 1 Unknown, 0 Unchecked, 2931.66ms Time] [2021-11-05 12:30:17,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-11-05 12:30:17,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 352. [2021-11-05 12:30:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 341 states have (on average 1.2111436950146628) internal successors, (413), 351 states have internal predecessors, (413), 0 states have call successors, (0), 0 states 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 12:30:17,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 413 transitions. [2021-11-05 12:30:17,964 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 413 transitions. Word has length 74 [2021-11-05 12:30:17,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:17,964 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 413 transitions. [2021-11-05 12:30:17,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 12:30:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 413 transitions. [2021-11-05 12:30:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 12:30:17,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:17,965 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, 1, 1] [2021-11-05 12:30:17,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 12:30:17,967 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:17,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:17,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1815438626, now seen corresponding path program 1 times [2021-11-05 12:30:17,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:17,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844416588] [2021-11-05 12:30:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:17,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:18,579 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 12:30:18,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:18,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844416588] [2021-11-05 12:30:18,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844416588] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:18,580 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:18,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:30:18,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997398921] [2021-11-05 12:30:18,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:18,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:30:18,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:18,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:30:18,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:30:18,581 INFO L87 Difference]: Start difference. First operand 352 states and 413 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 12:30:19,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:19,370 INFO L93 Difference]: Finished difference Result 740 states and 852 transitions. [2021-11-05 12:30:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:30:19,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2021-11-05 12:30:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:19,372 INFO L225 Difference]: With dead ends: 740 [2021-11-05 12:30:19,372 INFO L226 Difference]: Without dead ends: 415 [2021-11-05 12:30:19,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 230.14ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:30:19,374 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 119 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 627.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.97ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 674.08ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:19,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1340 Invalid, 265 Unknown, 0 Unchecked, 2.97ms Time], IncrementalHoareTripleChecker [36 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 674.08ms Time] [2021-11-05 12:30:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-11-05 12:30:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 352. [2021-11-05 12:30:19,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 341 states have (on average 1.18475073313783) internal successors, (404), 351 states have internal predecessors, (404), 0 states have call successors, (0), 0 states 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 12:30:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 404 transitions. [2021-11-05 12:30:19,386 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 404 transitions. Word has length 75 [2021-11-05 12:30:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:19,386 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 404 transitions. [2021-11-05 12:30:19,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 12:30:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 404 transitions. [2021-11-05 12:30:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 12:30:19,388 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:19,388 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, 1, 1, 1] [2021-11-05 12:30:19,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-05 12:30:19,388 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:19,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1592329908, now seen corresponding path program 1 times [2021-11-05 12:30:19,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:19,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802360956] [2021-11-05 12:30:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:19,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:20,406 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 12:30:20,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:20,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802360956] [2021-11-05 12:30:20,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802360956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:20,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:20,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-05 12:30:20,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574752363] [2021-11-05 12:30:20,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:20,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 12:30:20,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:20,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 12:30:20,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:30:20,409 INFO L87 Difference]: Start difference. First operand 352 states and 404 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 12:30:22,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:24,580 WARN L515 Checker$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 12:30:26,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:28,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:30,941 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 12:30:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:33,703 INFO L93 Difference]: Finished difference Result 673 states and 773 transitions. [2021-11-05 12:30:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-05 12:30:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2021-11-05 12:30:33,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:33,705 INFO L225 Difference]: With dead ends: 673 [2021-11-05 12:30:33,705 INFO L226 Difference]: Without dead ends: 478 [2021-11-05 12:30:33,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1344.40ms TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2021-11-05 12:30:33,706 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 740 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 44 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11621.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.57ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12336.09ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:33,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1578 Invalid, 632 Unknown, 0 Unchecked, 7.57ms Time], IncrementalHoareTripleChecker [44 Valid, 583 Invalid, 5 Unknown, 0 Unchecked, 12336.09ms Time] [2021-11-05 12:30:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-05 12:30:33,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 350. [2021-11-05 12:30:33,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 349 states have internal predecessors, (400), 0 states have call successors, (0), 0 states 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 12:30:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 400 transitions. [2021-11-05 12:30:33,719 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 400 transitions. Word has length 76 [2021-11-05 12:30:33,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:33,719 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 400 transitions. [2021-11-05 12:30:33,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 12:30:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 400 transitions. [2021-11-05 12:30:33,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 12:30:33,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:33,720 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, 1, 1, 1, 1, 1, 1] [2021-11-05 12:30:33,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-05 12:30:33,721 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:33,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:33,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1068292604, now seen corresponding path program 1 times [2021-11-05 12:30:33,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:33,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064409443] [2021-11-05 12:30:33,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:33,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:33,894 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 12:30:33,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:33,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064409443] [2021-11-05 12:30:33,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064409443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:33,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:30:33,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461658620] [2021-11-05 12:30:33,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:30:33,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:30:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:30:33,896 INFO L87 Difference]: Start difference. First operand 350 states and 400 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:34,236 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2021-11-05 12:30:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:30:34,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-05 12:30:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:34,238 INFO L225 Difference]: With dead ends: 580 [2021-11-05 12:30:34,238 INFO L226 Difference]: Without dead ends: 252 [2021-11-05 12:30:34,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 51.08ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:30:34,239 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 30 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 278.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.36ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 297.69ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:34,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 573 Invalid, 103 Unknown, 0 Unchecked, 1.36ms Time], IncrementalHoareTripleChecker [18 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 297.69ms Time] [2021-11-05 12:30:34,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-05 12:30:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 231. [2021-11-05 12:30:34,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 220 states have (on average 1.1772727272727272) internal successors, (259), 230 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 12:30:34,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 259 transitions. [2021-11-05 12:30:34,249 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 259 transitions. Word has length 79 [2021-11-05 12:30:34,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:34,249 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 259 transitions. [2021-11-05 12:30:34,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:34,250 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 259 transitions. [2021-11-05 12:30:34,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 12:30:34,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:34,250 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, 1, 1, 1, 1, 1, 1] [2021-11-05 12:30:34,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-05 12:30:34,251 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:34,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:34,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1364907914, now seen corresponding path program 1 times [2021-11-05 12:30:34,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:34,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218064488] [2021-11-05 12:30:34,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:34,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:35,490 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 12:30:35,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:35,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218064488] [2021-11-05 12:30:35,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218064488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:35,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:35,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-05 12:30:35,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663831365] [2021-11-05 12:30:35,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:35,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:30:35,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:30:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:30:35,493 INFO L87 Difference]: Start difference. First operand 231 states and 259 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:37,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:39,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:41,780 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:43,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:46,014 WARN L515 Checker$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 12:30:48,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:48,403 INFO L93 Difference]: Finished difference Result 500 states and 555 transitions. [2021-11-05 12:30:48,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-05 12:30:48,403 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-05 12:30:48,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:48,404 INFO L225 Difference]: With dead ends: 500 [2021-11-05 12:30:48,404 INFO L226 Difference]: Without dead ends: 300 [2021-11-05 12:30:48,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1187.86ms TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-11-05 12:30:48,406 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 428 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 59 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11444.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.46ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12122.35ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:48,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 1138 Invalid, 611 Unknown, 0 Unchecked, 5.46ms Time], IncrementalHoareTripleChecker [59 Valid, 547 Invalid, 5 Unknown, 0 Unchecked, 12122.35ms Time] [2021-11-05 12:30:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-05 12:30:48,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 250. [2021-11-05 12:30:48,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 239 states have (on average 1.1631799163179917) internal successors, (278), 249 states have internal predecessors, (278), 0 states have call successors, (0), 0 states 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 12:30:48,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 278 transitions. [2021-11-05 12:30:48,415 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 278 transitions. Word has length 79 [2021-11-05 12:30:48,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:48,416 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 278 transitions. [2021-11-05 12:30:48,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:48,416 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 278 transitions. [2021-11-05 12:30:48,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 12:30:48,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:48,417 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, 1, 1, 1, 1, 1, 1] [2021-11-05 12:30:48,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-05 12:30:48,417 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:48,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1084692216, now seen corresponding path program 1 times [2021-11-05 12:30:48,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:48,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091096832] [2021-11-05 12:30:48,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:48,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:30:51,966 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 12:30:51,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:30:51,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091096832] [2021-11-05 12:30:51,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091096832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:30:51,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:30:51,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-05 12:30:51,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552337020] [2021-11-05 12:30:51,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:30:51,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:30:51,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:30:51,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:30:51,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:30:51,968 INFO L87 Difference]: Start difference. First operand 250 states and 278 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:54,012 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:56,128 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:30:58,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:30:58,756 INFO L93 Difference]: Finished difference Result 510 states and 567 transitions. [2021-11-05 12:30:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-05 12:30:58,756 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-05 12:30:58,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:30:58,757 INFO L225 Difference]: With dead ends: 510 [2021-11-05 12:30:58,758 INFO L226 Difference]: Without dead ends: 359 [2021-11-05 12:30:58,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1767.89ms TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2021-11-05 12:30:58,759 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 1014 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 30 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5082.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.84ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5387.71ms IncrementalHoareTripleChecker+Time [2021-11-05 12:30:58,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 1335 Invalid, 439 Unknown, 0 Unchecked, 7.84ms Time], IncrementalHoareTripleChecker [30 Valid, 407 Invalid, 2 Unknown, 0 Unchecked, 5387.71ms Time] [2021-11-05 12:30:58,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-11-05 12:30:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 271. [2021-11-05 12:30:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 260 states have (on average 1.1538461538461537) internal successors, (300), 270 states have internal predecessors, (300), 0 states have call successors, (0), 0 states 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 12:30:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 300 transitions. [2021-11-05 12:30:58,770 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 300 transitions. Word has length 79 [2021-11-05 12:30:58,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:30:58,770 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 300 transitions. [2021-11-05 12:30:58,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:30:58,770 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 300 transitions. [2021-11-05 12:30:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:30:58,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:30:58,771 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:30:58,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-05 12:30:58,772 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:30:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:30:58,772 INFO L85 PathProgramCache]: Analyzing trace with hash -832956375, now seen corresponding path program 1 times [2021-11-05 12:30:58,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:30:58,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945968666] [2021-11-05 12:30:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:30:58,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:30:59,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:00,396 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 12:31:00,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:00,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945968666] [2021-11-05 12:31:00,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945968666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:00,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:00,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-05 12:31:00,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308920477] [2021-11-05 12:31:00,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:00,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:31:00,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:31:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:31:00,398 INFO L87 Difference]: Start difference. First operand 271 states and 300 transitions. Second operand has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 12:31:02,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:04,575 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:06,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:08,849 WARN L515 Checker$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 12:31:10,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:13,105 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:31:15,745 INFO L93 Difference]: Finished difference Result 500 states and 557 transitions. [2021-11-05 12:31:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 12:31:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2021-11-05 12:31:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:31:15,747 INFO L225 Difference]: With dead ends: 500 [2021-11-05 12:31:15,747 INFO L226 Difference]: Without dead ends: 349 [2021-11-05 12:31:15,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1078.04ms TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:31:15,748 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 540 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 30 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13959.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.83ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14846.30ms IncrementalHoareTripleChecker+Time [2021-11-05 12:31:15,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 1861 Invalid, 769 Unknown, 0 Unchecked, 7.83ms Time], IncrementalHoareTripleChecker [30 Valid, 733 Invalid, 6 Unknown, 0 Unchecked, 14846.30ms Time] [2021-11-05 12:31:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-05 12:31:15,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 277. [2021-11-05 12:31:15,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 266 states have (on average 1.1541353383458646) internal successors, (307), 276 states have internal predecessors, (307), 0 states have call successors, (0), 0 states 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 12:31:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 307 transitions. [2021-11-05 12:31:15,759 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 307 transitions. Word has length 82 [2021-11-05 12:31:15,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:31:15,759 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 307 transitions. [2021-11-05 12:31:15,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 0 states have call successors, (0), 0 states 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 12:31:15,760 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 307 transitions. [2021-11-05 12:31:15,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:31:15,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:31:15,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:15,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-05 12:31:15,761 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:31:15,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:31:15,761 INFO L85 PathProgramCache]: Analyzing trace with hash 121635765, now seen corresponding path program 1 times [2021-11-05 12:31:15,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:31:15,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140043970] [2021-11-05 12:31:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:31:15,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:31:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:16,512 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 12:31:16,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:16,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140043970] [2021-11-05 12:31:16,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140043970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:16,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:16,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:31:16,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409539818] [2021-11-05 12:31:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:16,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:31:16,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:31:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:31:16,514 INFO L87 Difference]: Start difference. First operand 277 states and 307 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:18,559 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:20,680 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:22,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:31:22,023 INFO L93 Difference]: Finished difference Result 571 states and 640 transitions. [2021-11-05 12:31:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:31:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:31:22,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:31:22,025 INFO L225 Difference]: With dead ends: 571 [2021-11-05 12:31:22,025 INFO L226 Difference]: Without dead ends: 425 [2021-11-05 12:31:22,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 509.52ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:31:22,026 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 355 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4857.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.54ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5177.81ms IncrementalHoareTripleChecker+Time [2021-11-05 12:31:22,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 784 Invalid, 318 Unknown, 0 Unchecked, 3.54ms Time], IncrementalHoareTripleChecker [20 Valid, 296 Invalid, 2 Unknown, 0 Unchecked, 5177.81ms Time] [2021-11-05 12:31:22,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-11-05 12:31:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 297. [2021-11-05 12:31:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 286 states have (on average 1.1433566433566433) internal successors, (327), 296 states have internal predecessors, (327), 0 states have call successors, (0), 0 states 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 12:31:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 327 transitions. [2021-11-05 12:31:22,038 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 327 transitions. Word has length 85 [2021-11-05 12:31:22,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:31:22,039 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 327 transitions. [2021-11-05 12:31:22,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 327 transitions. [2021-11-05 12:31:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:31:22,040 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:31:22,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:31:22,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-05 12:31:22,040 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:31:22,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:31:22,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1466712137, now seen corresponding path program 1 times [2021-11-05 12:31:22,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:31:22,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297441402] [2021-11-05 12:31:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:31:22,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:31:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:23,377 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 12:31:23,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:23,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297441402] [2021-11-05 12:31:23,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297441402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:23,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:23,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-05 12:31:23,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468167431] [2021-11-05 12:31:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:23,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-05 12:31:23,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-05 12:31:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-05 12:31:23,380 INFO L87 Difference]: Start difference. First operand 297 states and 327 transitions. Second operand has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:25,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:27,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:29,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:31,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:31:34,824 INFO L93 Difference]: Finished difference Result 550 states and 606 transitions. [2021-11-05 12:31:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 12:31:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:31:34,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:31:34,827 INFO L225 Difference]: With dead ends: 550 [2021-11-05 12:31:34,827 INFO L226 Difference]: Without dead ends: 472 [2021-11-05 12:31:34,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1584.43ms TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2021-11-05 12:31:34,828 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1172 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 64 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9757.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.88ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10451.54ms IncrementalHoareTripleChecker+Time [2021-11-05 12:31:34,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 1358 Invalid, 666 Unknown, 0 Unchecked, 7.88ms Time], IncrementalHoareTripleChecker [64 Valid, 598 Invalid, 4 Unknown, 0 Unchecked, 10451.54ms Time] [2021-11-05 12:31:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-05 12:31:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 340. [2021-11-05 12:31:34,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 329 states have (on average 1.1367781155015197) internal successors, (374), 339 states have internal predecessors, (374), 0 states have call successors, (0), 0 states 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 12:31:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2021-11-05 12:31:34,842 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 85 [2021-11-05 12:31:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:31:34,842 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2021-11-05 12:31:34,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0) internal successors, (85), 17 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2021-11-05 12:31:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:31:34,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:31:34,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:31:34,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-05 12:31:34,844 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:31:34,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:31:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1724877575, now seen corresponding path program 1 times [2021-11-05 12:31:34,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:31:34,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497209023] [2021-11-05 12:31:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:31:34,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:31:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:39,713 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 12:31:39,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:39,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497209023] [2021-11-05 12:31:39,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497209023] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:39,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:39,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 12:31:39,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577685217] [2021-11-05 12:31:39,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:39,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 12:31:39,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:39,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 12:31:39,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:31:39,715 INFO L87 Difference]: Start difference. First operand 340 states and 374 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:41,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:43,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:31:45,719 INFO L93 Difference]: Finished difference Result 497 states and 546 transitions. [2021-11-05 12:31:45,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 12:31:45,720 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:31:45,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:31:45,721 INFO L225 Difference]: With dead ends: 497 [2021-11-05 12:31:45,722 INFO L226 Difference]: Without dead ends: 386 [2021-11-05 12:31:45,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1212.93ms TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2021-11-05 12:31:45,723 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 1668 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 91 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4880.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.55ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5197.07ms IncrementalHoareTripleChecker+Time [2021-11-05 12:31:45,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1668 Valid, 692 Invalid, 400 Unknown, 0 Unchecked, 4.55ms Time], IncrementalHoareTripleChecker [91 Valid, 307 Invalid, 2 Unknown, 0 Unchecked, 5197.07ms Time] [2021-11-05 12:31:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-05 12:31:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 268. [2021-11-05 12:31:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 257 states have (on average 1.1828793774319066) internal successors, (304), 267 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 12:31:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 304 transitions. [2021-11-05 12:31:45,735 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 304 transitions. Word has length 85 [2021-11-05 12:31:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:31:45,736 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 304 transitions. [2021-11-05 12:31:45,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 304 transitions. [2021-11-05 12:31:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:31:45,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:31:45,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:31:45,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-05 12:31:45,737 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:31:45,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:31:45,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1137079539, now seen corresponding path program 1 times [2021-11-05 12:31:45,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:31:45,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572376201] [2021-11-05 12:31:45,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:31:45,738 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:31:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:46,444 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 12:31:46,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:46,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572376201] [2021-11-05 12:31:46,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572376201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:46,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:46,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:31:46,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929225868] [2021-11-05 12:31:46,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:46,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:31:46,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:46,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:31:46,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:31:46,446 INFO L87 Difference]: Start difference. First operand 268 states and 304 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:48,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:50,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:31:52,255 INFO L93 Difference]: Finished difference Result 436 states and 487 transitions. [2021-11-05 12:31:52,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:31:52,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:31:52,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:31:52,256 INFO L225 Difference]: With dead ends: 436 [2021-11-05 12:31:52,257 INFO L226 Difference]: Without dead ends: 370 [2021-11-05 12:31:52,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 594.41ms TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:31:52,257 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 582 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5024.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.51ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5381.78ms IncrementalHoareTripleChecker+Time [2021-11-05 12:31:52,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 1174 Invalid, 419 Unknown, 0 Unchecked, 4.51ms Time], IncrementalHoareTripleChecker [41 Valid, 376 Invalid, 2 Unknown, 0 Unchecked, 5381.78ms Time] [2021-11-05 12:31:52,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-05 12:31:52,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 278. [2021-11-05 12:31:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 267 states have (on average 1.1797752808988764) internal successors, (315), 277 states have internal predecessors, (315), 0 states have call successors, (0), 0 states 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 12:31:52,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 315 transitions. [2021-11-05 12:31:52,271 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 315 transitions. Word has length 85 [2021-11-05 12:31:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:31:52,271 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 315 transitions. [2021-11-05 12:31:52,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 315 transitions. [2021-11-05 12:31:52,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:31:52,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:31:52,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:31:52,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-05 12:31:52,273 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:31:52,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:31:52,273 INFO L85 PathProgramCache]: Analyzing trace with hash 353688179, now seen corresponding path program 1 times [2021-11-05 12:31:52,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:31:52,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903899757] [2021-11-05 12:31:52,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:31:52,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:31:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:31:53,540 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 12:31:53,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:31:53,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903899757] [2021-11-05 12:31:53,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903899757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:31:53,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:31:53,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-05 12:31:53,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155299423] [2021-11-05 12:31:53,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:31:53,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:31:53,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:31:53,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:31:53,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:31:53,542 INFO L87 Difference]: Start difference. First operand 278 states and 315 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:31:55,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:31:57,731 WARN L515 Checker$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 12:31:59,843 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:01,995 WARN L515 Checker$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 12:32:04,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:06,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:08,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:32:10,298 INFO L93 Difference]: Finished difference Result 588 states and 667 transitions. [2021-11-05 12:32:10,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-05 12:32:10,298 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:32:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:32:10,300 INFO L225 Difference]: With dead ends: 588 [2021-11-05 12:32:10,300 INFO L226 Difference]: Without dead ends: 422 [2021-11-05 12:32:10,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 901.02ms TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-05 12:32:10,301 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 804 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 48 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15266.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.53ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16257.97ms IncrementalHoareTripleChecker+Time [2021-11-05 12:32:10,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 1228 Invalid, 538 Unknown, 0 Unchecked, 5.53ms Time], IncrementalHoareTripleChecker [48 Valid, 483 Invalid, 7 Unknown, 0 Unchecked, 16257.97ms Time] [2021-11-05 12:32:10,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-05 12:32:10,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 306. [2021-11-05 12:32:10,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 295 states have (on average 1.1661016949152543) internal successors, (344), 305 states have internal predecessors, (344), 0 states have call successors, (0), 0 states 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 12:32:10,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2021-11-05 12:32:10,315 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 85 [2021-11-05 12:32:10,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:32:10,315 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2021-11-05 12:32:10,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:32:10,315 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2021-11-05 12:32:10,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:32:10,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:32:10,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:32:10,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-05 12:32:10,317 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:32:10,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:32:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1234659723, now seen corresponding path program 1 times [2021-11-05 12:32:10,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:32:10,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113491689] [2021-11-05 12:32:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:32:10,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:32:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:32:11,755 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 12:32:11,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:32:11,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113491689] [2021-11-05 12:32:11,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113491689] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:32:11,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:32:11,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-05 12:32:11,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379923641] [2021-11-05 12:32:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:32:11,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-05 12:32:11,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:32:11,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-05 12:32:11,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:32:11,757 INFO L87 Difference]: Start difference. First operand 306 states and 344 transitions. Second operand has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:32:13,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:15,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:18,046 WARN L515 Checker$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 12:32:20,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:22,311 WARN L515 Checker$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 12:32:24,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:26,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:28,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:30,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:32:33,827 INFO L93 Difference]: Finished difference Result 560 states and 635 transitions. [2021-11-05 12:32:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:32:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:32:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:32:33,829 INFO L225 Difference]: With dead ends: 560 [2021-11-05 12:32:33,829 INFO L226 Difference]: Without dead ends: 384 [2021-11-05 12:32:33,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1219.76ms TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-05 12:32:33,830 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 823 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 46 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20097.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.34ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21421.21ms IncrementalHoareTripleChecker+Time [2021-11-05 12:32:33,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 1947 Invalid, 813 Unknown, 0 Unchecked, 8.34ms Time], IncrementalHoareTripleChecker [46 Valid, 758 Invalid, 9 Unknown, 0 Unchecked, 21421.21ms Time] [2021-11-05 12:32:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-05 12:32:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 317. [2021-11-05 12:32:33,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 306 states have (on average 1.1601307189542485) internal successors, (355), 316 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 12:32:33,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 355 transitions. [2021-11-05 12:32:33,841 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 355 transitions. Word has length 85 [2021-11-05 12:32:33,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:32:33,842 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 355 transitions. [2021-11-05 12:32:33,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:32:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 355 transitions. [2021-11-05 12:32:33,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:32:33,843 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:32:33,843 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:32:33,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-05 12:32:33,846 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:32:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:32:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1192781619, now seen corresponding path program 1 times [2021-11-05 12:32:33,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:32:33,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105628829] [2021-11-05 12:32:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:32:33,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:32:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:32:36,991 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 12:32:36,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:32:36,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105628829] [2021-11-05 12:32:36,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105628829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:32:36,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:32:36,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-05 12:32:36,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871630503] [2021-11-05 12:32:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:32:36,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-05 12:32:36,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:32:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-05 12:32:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:32:36,993 INFO L87 Difference]: Start difference. First operand 317 states and 355 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:32:39,053 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:41,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:43,330 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 12:32:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:32:44,924 INFO L93 Difference]: Finished difference Result 697 states and 796 transitions. [2021-11-05 12:32:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:32:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-05 12:32:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:32:44,926 INFO L225 Difference]: With dead ends: 697 [2021-11-05 12:32:44,926 INFO L226 Difference]: Without dead ends: 472 [2021-11-05 12:32:44,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 804.78ms TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:32:44,927 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 447 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6960.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.91ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7443.51ms IncrementalHoareTripleChecker+Time [2021-11-05 12:32:44,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1291 Invalid, 361 Unknown, 0 Unchecked, 4.91ms Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 7443.51ms Time] [2021-11-05 12:32:44,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-05 12:32:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 317. [2021-11-05 12:32:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 306 states have (on average 1.1568627450980393) internal successors, (354), 316 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 12:32:44,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 354 transitions. [2021-11-05 12:32:44,942 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 354 transitions. Word has length 85 [2021-11-05 12:32:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:32:44,942 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 354 transitions. [2021-11-05 12:32:44,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 12:32:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 354 transitions. [2021-11-05 12:32:44,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-05 12:32:44,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:32:44,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:32:44,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-05 12:32:44,944 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:32:44,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:32:44,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1366130194, now seen corresponding path program 1 times [2021-11-05 12:32:44,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:32:44,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678315958] [2021-11-05 12:32:44,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:32:44,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:32:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:32:45,372 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 12:32:45,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:32:45,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678315958] [2021-11-05 12:32:45,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678315958] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:32:45,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:32:45,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:32:45,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558441321] [2021-11-05 12:32:45,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:32:45,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:32:45,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:32:45,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:32:45,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:32:45,375 INFO L87 Difference]: Start difference. First operand 317 states and 354 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:32:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:32:46,447 INFO L93 Difference]: Finished difference Result 462 states and 520 transitions. [2021-11-05 12:32:46,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-05 12:32:46,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 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 87 [2021-11-05 12:32:46,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:32:46,448 INFO L225 Difference]: With dead ends: 462 [2021-11-05 12:32:46,448 INFO L226 Difference]: Without dead ends: 445 [2021-11-05 12:32:46,449 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 437.63ms TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-11-05 12:32:46,449 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 233 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 695.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 739.91ms IncrementalHoareTripleChecker+Time [2021-11-05 12:32:46,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1054 Invalid, 384 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [87 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 739.91ms Time] [2021-11-05 12:32:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-11-05 12:32:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 329. [2021-11-05 12:32:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 318 states have (on average 1.1477987421383649) internal successors, (365), 328 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 12:32:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2021-11-05 12:32:46,464 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 87 [2021-11-05 12:32:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:32:46,465 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2021-11-05 12:32:46,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 0 states have call successors, (0), 0 states 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 12:32:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2021-11-05 12:32:46,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 12:32:46,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:32:46,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:32:46,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-05 12:32:46,466 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:32:46,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:32:46,467 INFO L85 PathProgramCache]: Analyzing trace with hash 904162516, now seen corresponding path program 1 times [2021-11-05 12:32:46,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:32:46,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353021528] [2021-11-05 12:32:46,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:32:46,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:32:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:32:51,803 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 12:32:51,804 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:32:51,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353021528] [2021-11-05 12:32:51,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353021528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:32:51,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:32:51,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-05 12:32:51,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102921364] [2021-11-05 12:32:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:32:51,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-05 12:32:51,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:32:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-05 12:32:51,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-11-05 12:32:51,806 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 12:32:53,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:55,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:32:58,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:00,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:02,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:04,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:06,579 WARN L515 Checker$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 12:33:08,711 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:10,849 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:12,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:33:19,245 INFO L93 Difference]: Finished difference Result 617 states and 689 transitions. [2021-11-05 12:33:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-05 12:33:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-05 12:33:19,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:33:19,247 INFO L225 Difference]: With dead ends: 617 [2021-11-05 12:33:19,247 INFO L226 Difference]: Without dead ends: 439 [2021-11-05 12:33:19,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3876.64ms TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2021-11-05 12:33:19,248 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 741 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 47 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23283.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.65ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24657.10ms IncrementalHoareTripleChecker+Time [2021-11-05 12:33:19,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 2875 Invalid, 1214 Unknown, 0 Unchecked, 12.65ms Time], IncrementalHoareTripleChecker [47 Valid, 1157 Invalid, 10 Unknown, 0 Unchecked, 24657.10ms Time] [2021-11-05 12:33:19,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-05 12:33:19,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 329. [2021-11-05 12:33:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 318 states have (on average 1.1446540880503144) internal successors, (364), 328 states have internal predecessors, (364), 0 states have call successors, (0), 0 states 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 12:33:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 364 transitions. [2021-11-05 12:33:19,264 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 364 transitions. Word has length 88 [2021-11-05 12:33:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:33:19,264 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 364 transitions. [2021-11-05 12:33:19,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.190476190476191) internal successors, (88), 21 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 12:33:19,265 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 364 transitions. [2021-11-05 12:33:19,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 12:33:19,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:33:19,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:33:19,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-05 12:33:19,266 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:33:19,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:33:19,266 INFO L85 PathProgramCache]: Analyzing trace with hash -684185386, now seen corresponding path program 1 times [2021-11-05 12:33:19,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:33:19,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75650014] [2021-11-05 12:33:19,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:33:19,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:33:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:33:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:33:27,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:33:27,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75650014] [2021-11-05 12:33:27,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75650014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:33:27,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:33:27,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-05 12:33:27,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077594431] [2021-11-05 12:33:27,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:33:27,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-05 12:33:27,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:33:27,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-05 12:33:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2021-11-05 12:33:27,910 INFO L87 Difference]: Start difference. First operand 329 states and 364 transitions. Second operand has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 12:33:29,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:32,110 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:34,221 WARN L515 Checker$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 12:33:36,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:38,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:40,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:49,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:53,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:33:53,992 INFO L93 Difference]: Finished difference Result 510 states and 557 transitions. [2021-11-05 12:33:53,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-05 12:33:53,993 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2021-11-05 12:33:53,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:33:53,994 INFO L225 Difference]: With dead ends: 510 [2021-11-05 12:33:53,994 INFO L226 Difference]: Without dead ends: 444 [2021-11-05 12:33:53,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 6832.56ms TimeCoverageRelationStatistics Valid=465, Invalid=1175, Unknown=0, NotChecked=0, Total=1640 [2021-11-05 12:33:53,996 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 1606 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 143 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20627.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.23ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21591.50ms IncrementalHoareTripleChecker+Time [2021-11-05 12:33:53,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 2418 Invalid, 1115 Unknown, 0 Unchecked, 12.23ms Time], IncrementalHoareTripleChecker [143 Valid, 966 Invalid, 6 Unknown, 0 Unchecked, 21591.50ms Time] [2021-11-05 12:33:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-11-05 12:33:54,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 349. [2021-11-05 12:33:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 338 states have (on average 1.165680473372781) internal successors, (394), 348 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 12:33:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 394 transitions. [2021-11-05 12:33:54,014 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 394 transitions. Word has length 88 [2021-11-05 12:33:54,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:33:54,014 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 394 transitions. [2021-11-05 12:33:54,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 22 states have internal predecessors, (88), 0 states have call successors, (0), 0 states 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 12:33:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 394 transitions. [2021-11-05 12:33:54,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:33:54,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:33:54,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:33:54,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-05 12:33:54,016 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:33:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:33:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1450616371, now seen corresponding path program 1 times [2021-11-05 12:33:54,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:33:54,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849328139] [2021-11-05 12:33:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:33:54,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:33:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:33:54,849 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 12:33:54,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:33:54,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849328139] [2021-11-05 12:33:54,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849328139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:33:54,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:33:54,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:33:54,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083540271] [2021-11-05 12:33:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:33:54,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:33:54,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:33:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:33:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:33:54,851 INFO L87 Difference]: Start difference. First operand 349 states and 394 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:33:56,893 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:33:59,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:01,143 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 12:34:02,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:02,261 INFO L93 Difference]: Finished difference Result 544 states and 611 transitions. [2021-11-05 12:34:02,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:34:02,261 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-05 12:34:02,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:02,262 INFO L225 Difference]: With dead ends: 544 [2021-11-05 12:34:02,262 INFO L226 Difference]: Without dead ends: 477 [2021-11-05 12:34:02,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 258.45ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:34:02,263 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 392 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 22 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6796.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.13ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7214.70ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:02,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 781 Invalid, 322 Unknown, 0 Unchecked, 3.13ms Time], IncrementalHoareTripleChecker [22 Valid, 297 Invalid, 3 Unknown, 0 Unchecked, 7214.70ms Time] [2021-11-05 12:34:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-05 12:34:02,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 370. [2021-11-05 12:34:02,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 359 states have (on average 1.158774373259053) internal successors, (416), 369 states have internal predecessors, (416), 0 states have call successors, (0), 0 states 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 12:34:02,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 416 transitions. [2021-11-05 12:34:02,278 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 416 transitions. Word has length 90 [2021-11-05 12:34:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:02,278 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 416 transitions. [2021-11-05 12:34:02,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 416 transitions. [2021-11-05 12:34:02,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:34:02,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:02,279 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:34:02,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-05 12:34:02,280 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:02,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash -64412977, now seen corresponding path program 1 times [2021-11-05 12:34:02,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:02,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509408836] [2021-11-05 12:34:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:02,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:06,794 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 12:34:06,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:06,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509408836] [2021-11-05 12:34:06,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509408836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:06,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:06,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-05 12:34:06,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116934411] [2021-11-05 12:34:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:06,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-05 12:34:06,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:06,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-05 12:34:06,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-11-05 12:34:06,796 INFO L87 Difference]: Start difference. First operand 370 states and 416 transitions. Second operand has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:08,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:10,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:13,109 WARN L515 Checker$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 12:34:15,251 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:17,385 WARN L515 Checker$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 12:34:19,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:21,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:27,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:27,778 INFO L93 Difference]: Finished difference Result 617 states and 693 transitions. [2021-11-05 12:34:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-05 12:34:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-05 12:34:27,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:27,780 INFO L225 Difference]: With dead ends: 617 [2021-11-05 12:34:27,780 INFO L226 Difference]: Without dead ends: 613 [2021-11-05 12:34:27,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 4571.51ms TimeCoverageRelationStatistics Valid=568, Invalid=2972, Unknown=0, NotChecked=0, Total=3540 [2021-11-05 12:34:27,781 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1051 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 198 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16074.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.82ms SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17138.39ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:27,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1509 Invalid, 1082 Unknown, 0 Unchecked, 8.82ms Time], IncrementalHoareTripleChecker [198 Valid, 877 Invalid, 7 Unknown, 0 Unchecked, 17138.39ms Time] [2021-11-05 12:34:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-05 12:34:27,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 370. [2021-11-05 12:34:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 360 states have (on average 1.1611111111111112) internal successors, (418), 369 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 12:34:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 418 transitions. [2021-11-05 12:34:27,801 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 418 transitions. Word has length 90 [2021-11-05 12:34:27,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:27,802 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 418 transitions. [2021-11-05 12:34:27,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 19 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:27,802 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 418 transitions. [2021-11-05 12:34:27,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-05 12:34:27,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:27,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:34:27,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-05 12:34:27,803 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:27,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1192526857, now seen corresponding path program 1 times [2021-11-05 12:34:27,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:27,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201313326] [2021-11-05 12:34:27,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:27,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:28,037 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 12:34:28,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:28,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201313326] [2021-11-05 12:34:28,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201313326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:28,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:28,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:34:28,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286651397] [2021-11-05 12:34:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:28,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:34:28,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:28,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:34:28,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:34:28,038 INFO L87 Difference]: Start difference. First operand 370 states and 418 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:28,135 INFO L93 Difference]: Finished difference Result 457 states and 509 transitions. [2021-11-05 12:34:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:34:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-11-05 12:34:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:28,137 INFO L225 Difference]: With dead ends: 457 [2021-11-05 12:34:28,137 INFO L226 Difference]: Without dead ends: 410 [2021-11-05 12:34:28,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.14ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:34:28,137 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 95 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.50ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.61ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:28,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 785 Invalid, 16 Unknown, 0 Unchecked, 0.50ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 39.61ms Time] [2021-11-05 12:34:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-05 12:34:28,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 367. [2021-11-05 12:34:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 357 states have (on average 1.1512605042016806) internal successors, (411), 366 states have internal predecessors, (411), 0 states have call successors, (0), 0 states 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 12:34:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 411 transitions. [2021-11-05 12:34:28,152 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 411 transitions. Word has length 92 [2021-11-05 12:34:28,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:28,152 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 411 transitions. [2021-11-05 12:34:28,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 411 transitions. [2021-11-05 12:34:28,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-05 12:34:28,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:28,154 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:34:28,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-05 12:34:28,154 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:28,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:28,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1685477897, now seen corresponding path program 1 times [2021-11-05 12:34:28,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:28,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947744111] [2021-11-05 12:34:28,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:28,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:28,514 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 12:34:28,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:28,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947744111] [2021-11-05 12:34:28,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947744111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:28,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:28,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:34:28,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349460790] [2021-11-05 12:34:28,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:28,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:34:28,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:28,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:34:28,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:34:28,515 INFO L87 Difference]: Start difference. First operand 367 states and 411 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 12:34:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:28,806 INFO L93 Difference]: Finished difference Result 396 states and 442 transitions. [2021-11-05 12:34:28,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:34:28,807 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2021-11-05 12:34:28,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:28,808 INFO L225 Difference]: With dead ends: 396 [2021-11-05 12:34:28,808 INFO L226 Difference]: Without dead ends: 394 [2021-11-05 12:34:28,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 195.09ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:34:28,808 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 365 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.17ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 171.33ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:28,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 532 Invalid, 68 Unknown, 0 Unchecked, 1.17ms Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 171.33ms Time] [2021-11-05 12:34:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-05 12:34:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 365. [2021-11-05 12:34:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 356 states have (on average 1.1432584269662922) internal successors, (407), 364 states have internal predecessors, (407), 0 states have call successors, (0), 0 states 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 12:34:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 407 transitions. [2021-11-05 12:34:28,828 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 407 transitions. Word has length 93 [2021-11-05 12:34:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:28,829 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 407 transitions. [2021-11-05 12:34:28,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 0 states have call successors, (0), 0 states 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 12:34:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 407 transitions. [2021-11-05 12:34:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 12:34:28,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:28,830 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, 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 12:34:28,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-05 12:34:28,830 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:28,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:28,831 INFO L85 PathProgramCache]: Analyzing trace with hash -541449895, now seen corresponding path program 1 times [2021-11-05 12:34:28,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:28,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937142626] [2021-11-05 12:34:28,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:28,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:32,273 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 12:34:32,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:32,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937142626] [2021-11-05 12:34:32,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937142626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:32,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:32,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-05 12:34:32,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074161434] [2021-11-05 12:34:32,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:32,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-05 12:34:32,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-05 12:34:32,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:34:32,275 INFO L87 Difference]: Start difference. First operand 365 states and 407 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 16 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 12:34:34,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:36,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:38,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:40,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:42,851 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 12:34:45,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:45,618 INFO L93 Difference]: Finished difference Result 455 states and 503 transitions. [2021-11-05 12:34:45,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:34:45,619 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 16 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-11-05 12:34:45,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:45,620 INFO L225 Difference]: With dead ends: 455 [2021-11-05 12:34:45,621 INFO L226 Difference]: Without dead ends: 453 [2021-11-05 12:34:45,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2175.23ms TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-11-05 12:34:45,621 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 999 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 44 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11250.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.85ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11997.83ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:45,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 1108 Invalid, 502 Unknown, 0 Unchecked, 5.85ms Time], IncrementalHoareTripleChecker [44 Valid, 453 Invalid, 5 Unknown, 0 Unchecked, 11997.83ms Time] [2021-11-05 12:34:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-05 12:34:45,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 369. [2021-11-05 12:34:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 360 states have (on average 1.1444444444444444) internal successors, (412), 368 states have internal predecessors, (412), 0 states have call successors, (0), 0 states 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 12:34:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 412 transitions. [2021-11-05 12:34:45,642 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 412 transitions. Word has length 95 [2021-11-05 12:34:45,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:45,643 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 412 transitions. [2021-11-05 12:34:45,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 16 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 12:34:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 412 transitions. [2021-11-05 12:34:45,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 12:34:45,643 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:45,643 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, 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 12:34:45,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-05 12:34:45,644 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:45,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2059414454, now seen corresponding path program 1 times [2021-11-05 12:34:45,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:45,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623365086] [2021-11-05 12:34:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:45,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:46,034 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 12:34:46,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:46,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623365086] [2021-11-05 12:34:46,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623365086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:46,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:46,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:34:46,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010240999] [2021-11-05 12:34:46,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:46,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:34:46,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:46,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:34:46,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:34:46,036 INFO L87 Difference]: Start difference. First operand 369 states and 412 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 12:34:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:34:46,171 INFO L93 Difference]: Finished difference Result 477 states and 525 transitions. [2021-11-05 12:34:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:34:46,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2021-11-05 12:34:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:34:46,173 INFO L225 Difference]: With dead ends: 477 [2021-11-05 12:34:46,173 INFO L226 Difference]: Without dead ends: 394 [2021-11-05 12:34:46,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 104.82ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:34:46,174 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 218 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.64ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.82ms IncrementalHoareTripleChecker+Time [2021-11-05 12:34:46,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 666 Invalid, 25 Unknown, 0 Unchecked, 0.64ms Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 70.82ms Time] [2021-11-05 12:34:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-05 12:34:46,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 356. [2021-11-05 12:34:46,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 347 states have (on average 1.1412103746397695) internal successors, (396), 355 states have internal predecessors, (396), 0 states have call successors, (0), 0 states 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 12:34:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 396 transitions. [2021-11-05 12:34:46,187 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 396 transitions. Word has length 95 [2021-11-05 12:34:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:34:46,188 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 396 transitions. [2021-11-05 12:34:46,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states 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 12:34:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 396 transitions. [2021-11-05 12:34:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 12:34:46,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:34:46,189 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, 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 12:34:46,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-05 12:34:46,189 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:34:46,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:34:46,189 INFO L85 PathProgramCache]: Analyzing trace with hash -642167461, now seen corresponding path program 1 times [2021-11-05 12:34:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:34:46,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926258524] [2021-11-05 12:34:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:34:46,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:34:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:34:52,918 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 12:34:52,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:34:52,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926258524] [2021-11-05 12:34:52,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926258524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:34:52,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:34:52,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-05 12:34:52,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860090373] [2021-11-05 12:34:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:34:52,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 12:34:52,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:34:52,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 12:34:52,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-05 12:34:52,920 INFO L87 Difference]: Start difference. First operand 356 states and 396 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:34:54,980 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:57,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:34:59,291 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:35:01,429 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:35:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:35:03,714 INFO L93 Difference]: Finished difference Result 437 states and 481 transitions. [2021-11-05 12:35:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-05 12:35:03,715 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-05 12:35:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:35:03,716 INFO L225 Difference]: With dead ends: 437 [2021-11-05 12:35:03,716 INFO L226 Difference]: Without dead ends: 435 [2021-11-05 12:35:03,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1736.71ms TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2021-11-05 12:35:03,717 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 680 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9138.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.29ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9798.08ms IncrementalHoareTripleChecker+Time [2021-11-05 12:35:03,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 982 Invalid, 460 Unknown, 0 Unchecked, 5.29ms Time], IncrementalHoareTripleChecker [27 Valid, 429 Invalid, 4 Unknown, 0 Unchecked, 9798.08ms Time] [2021-11-05 12:35:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-05 12:35:03,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 358. [2021-11-05 12:35:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 349 states have (on average 1.140401146131805) internal successors, (398), 357 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 12:35:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 398 transitions. [2021-11-05 12:35:03,734 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 398 transitions. Word has length 97 [2021-11-05 12:35:03,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:35:03,734 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 398 transitions. [2021-11-05 12:35:03,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:35:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 398 transitions. [2021-11-05 12:35:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-05 12:35:03,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:35:03,735 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, 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 12:35:03,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-05 12:35:03,735 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 12:35:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:35:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash -965477682, now seen corresponding path program 1 times [2021-11-05 12:35:03,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:35:03,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694085926] [2021-11-05 12:35:03,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:35:03,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:35:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:35:04,345 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 12:35:04,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:35:04,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694085926] [2021-11-05 12:35:04,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694085926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:35:04,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092360537] [2021-11-05 12:35:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:35:04,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:35:04,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:35:04,348 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 12:35:04,390 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 12:35:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:35:05,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-05 12:35:05,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:35:05,248 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 12:35:05,574 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:35:05,574 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 12:35:05,659 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 18 treesize of output 14 [2021-11-05 12:35:05,675 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 19 treesize of output 1 [2021-11-05 12:35:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:06,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2021-11-05 12:35:06,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:06,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2021-11-05 12:35:07,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2021-11-05 12:35:07,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2021-11-05 12:35:08,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:35:08,052 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 12:35:08,667 INFO L354 Elim1Store]: treesize reduction 282, result has 22.3 percent of original size [2021-11-05 12:35:08,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 76 treesize of output 133 [2021-11-05 12:35:09,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:09,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2021-11-05 12:35:10,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:10,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:10,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:10,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 23 [2021-11-05 12:35:10,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:35:10,358 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-05 12:35:10,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 71 treesize of output 34 [2021-11-05 12:35:11,442 INFO L354 Elim1Store]: treesize reduction 80, result has 14.9 percent of original size [2021-11-05 12:35:11,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 79 [2021-11-05 12:35:11,929 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-05 12:35:11,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 55 [2021-11-05 12:35:12,028 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-05 12:35:12,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 55 [2021-11-05 12:35:27,213 INFO L354 Elim1Store]: treesize reduction 1267, result has 13.0 percent of original size [2021-11-05 12:35:27,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 1 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 64 case distinctions, treesize of input 202 treesize of output 288 [2021-11-05 12:35:51,873 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 12:35:51,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:36:12,721 WARN L230 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 53 [2021-11-05 12:36:29,579 WARN L230 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 57 [2021-11-05 12:36:49,902 WARN L230 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 65 [2021-11-05 12:36:58,929 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| Int) (|ULTIMATE.start_aws_hton32_#res| Int)) (or (= (mod (select (select (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|)) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0) (and (forall ((v_prenex_26 Int) (v_prenex_23 Int) (v_prenex_22 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int)) (or (not (= (mod (select (let ((.cse0 (select (let ((.cse2 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 v_prenex_26)) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|) (+ 8 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|))) (.cse1 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|)))) (store .cse1 .cse2 (let ((.cse3 (mod v_prenex_22 18446744073709551616))) (store (select .cse1 .cse2) (+ .cse3 v_prenex_21) (select (select .cse1 v_prenex_23) (+ .cse3 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) v_prenex_25))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0)) (< v_prenex_22 0) (< 9223372036854775807 v_prenex_22))) (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (v_DerPreprocessor_1 Int) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (or (<= 18446744073709551616 aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58) (<= aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 9223372036854775807) (not (= (mod (select (let ((.cse4 (select (let ((.cse6 (select (select (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 v_DerPreprocessor_1)) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|) (+ 8 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|))) (.cse5 (store |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select |c_#memory_int| |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|)))) (store .cse5 .cse6 (let ((.cse7 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse5 .cse6) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse5 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse7 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0))))))) is different from false [2021-11-05 12:37:27,854 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 1142 treesize of output 1094 [2021-11-05 12:38:16,900 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| Int) (v_DerPreprocessor_3 Int) (|ULTIMATE.start_aws_hton32_#res| Int)) (let ((.cse0 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3))) (.cse1 (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|))) (or (= (mod (select (select (store .cse0 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse0 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|)) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|) .cse1) 18446744073709551616) 0) (= (mod (select (select .cse0 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|) .cse1) 18446744073709551616) 0) (and (forall ((v_prenex_22 Int)) (or (< v_prenex_22 0) (< 9223372036854775807 v_prenex_22) (let ((.cse14 (= (+ 8 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) 0)) (.cse19 (= |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (let ((.cse3 (= c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|)) (.cse2 (= c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) (.cse8 (and .cse14 .cse19)) (.cse9 (or (not .cse14) (forall ((v_prenex_26 Int) (v_prenex_23 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int)) (not (= (mod (select (let ((.cse15 (select (let ((.cse16 (let ((.cse18 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse18 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse18 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse16 v_prenex_26 (let ((.cse17 (mod v_prenex_22 18446744073709551616))) (store (select .cse16 v_prenex_26) (+ .cse17 v_prenex_21) (select (select .cse16 v_prenex_23) (+ .cse17 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse15 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ v_prenex_25 (select .cse15 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0))) (not .cse19)))) (and (or (and .cse2 .cse3) (and (or (forall ((v_prenex_23 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int) (v_arrayElimCell_44 Int)) (not (= 0 (mod (select (let ((.cse4 (select (let ((.cse5 (let ((.cse7 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse7 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse7 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse5 v_arrayElimCell_44 (let ((.cse6 (mod v_prenex_22 18446744073709551616))) (store (select .cse5 v_arrayElimCell_44) (+ .cse6 v_prenex_21) (select (select .cse5 v_prenex_23) (+ .cse6 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse4 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) v_prenex_25))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616)))) .cse8) .cse9)) (or (not .cse3) (not .cse2) (and (or (forall ((v_prenex_23 Int) (v_prenex_25 Int) (v_prenex_24 Int) (v_prenex_21 Int)) (not (= (mod (select (let ((.cse10 (select (let ((.cse11 (let ((.cse13 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse13 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse13 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse11 |c_ULTIMATE.start_bounded_malloc_#res.base| (let ((.cse12 (mod v_prenex_22 18446744073709551616))) (store (select .cse11 |c_ULTIMATE.start_bounded_malloc_#res.base|) (+ .cse12 v_prenex_21) (select (select .cse11 v_prenex_23) (+ .cse12 v_prenex_24)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse10 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ v_prenex_25 (select .cse10 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0))) .cse8) .cse9))))))) (forall ((aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 Int)) (or (let ((.cse32 (= (+ 8 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) 0)) (.cse37 (= |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (let ((.cse27 (= c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) (.cse20 (= c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|)) (.cse25 (and .cse32 .cse37)) (.cse26 (or (not .cse32) (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (v_DerPreprocessor_1 Int) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (not (= (mod (select (let ((.cse33 (select (let ((.cse34 (let ((.cse36 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse36 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse36 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse34 v_DerPreprocessor_1 (let ((.cse35 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse34 v_DerPreprocessor_1) (+ (- 18446744073709551616) .cse35 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse34 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse35 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse33 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse33 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0))) (not .cse37)))) (and (or (not .cse20) (and (or (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (not (= (mod (select (let ((.cse21 (select (let ((.cse22 (let ((.cse24 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse24 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse24 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse22 |c_ULTIMATE.start_bounded_malloc_#res.base| (let ((.cse23 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse22 |c_ULTIMATE.start_bounded_malloc_#res.base|) (+ (- 18446744073709551616) .cse23 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse22 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse23 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse21 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse21 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0))) .cse25) .cse26) (not .cse27)) (or (and .cse27 .cse20) (and (or .cse25 (forall ((ULTIMATE.start_memcpy_impl_~dst.offset Int) (ULTIMATE.start_memcpy_impl_~src.base Int) (ULTIMATE.start_memcpy_impl_~src.offset Int) (ULTIMATE.start_aws_byte_buf_write_~len Int) (v_arrayElimCell_44 Int)) (not (= (mod (select (let ((.cse28 (select (let ((.cse29 (let ((.cse31 (store |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base (store (select |c_#memory_int| c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.base) (+ c_ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf.offset 8) v_DerPreprocessor_3)))) (store .cse31 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7| (store (select .cse31 |v_ULTIMATE.start_aws_byte_buf_write_be32_~#x.base_7|) 0 |ULTIMATE.start_aws_hton32_#res|))))) (store .cse29 v_arrayElimCell_44 (let ((.cse30 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select .cse29 v_arrayElimCell_44) (+ (- 18446744073709551616) .cse30 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select .cse29 ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse30 ULTIMATE.start_memcpy_impl_~src.offset)))))) |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.base|))) (store .cse28 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset| (+ (select .cse28 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|) ULTIMATE.start_aws_byte_buf_write_~len))) (+ 16 |c_ULTIMATE.start_aws_byte_buf_write_be32_harness_~#buf~3.offset|)) 18446744073709551616) 0)))) .cse26))))) (<= 18446744073709551616 aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58) (<= aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 9223372036854775807))))))) is different from false Killed by 15