./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/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-5b36d44 [2021-11-07 08:58:35,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:58:35,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:58:35,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:58:35,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:58:35,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:58:35,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:58:35,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:58:35,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:58:35,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:58:35,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:58:35,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:58:35,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:58:35,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:58:35,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:58:35,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:58:35,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:58:35,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:58:35,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:58:35,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:58:35,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:58:35,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:58:35,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:58:35,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:58:35,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:58:35,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:58:35,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:58:35,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:58:35,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:58:35,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:58:35,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:58:35,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:58:35,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:58:35,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:58:35,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:58:35,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:58:35,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:58:35,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:58:35,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:58:35,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:58:35,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:58:35,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 08:58:35,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:58:35,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:58:35,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:58:35,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:58:35,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:58:35,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:58:35,831 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:58:35,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:58:35,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:58:35,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:58:35,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:58:35,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:58:35,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:58:35,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:58:35,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:58:35,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:58:35,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:58:35,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:58:35,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:58:35,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:58:35,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:58:35,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:58:35,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:58:35,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:58:35,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:58:35,835 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:58:35,835 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:58:35,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:58:35,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:58:35,836 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d2088ac57520281350e2a5a3a1c8295b6f3f6b1edc40c64fce86e2816b5a5aa [2021-11-07 08:58:36,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:58:36,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:58:36,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:58:36,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:58:36,102 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:58:36,103 INFO L432 ainManager$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 [2021-11-07 08:58:36,161 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f09e1015/a7c26836ec224fdb9c388306e23e34b9/FLAG10fdc6ab3 [2021-11-07 08:58:36,830 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:58:36,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be32_harness.i [2021-11-07 08:58:36,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f09e1015/a7c26836ec224fdb9c388306e23e34b9/FLAG10fdc6ab3 [2021-11-07 08:58:37,158 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f09e1015/a7c26836ec224fdb9c388306e23e34b9 [2021-11-07 08:58:37,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:58:37,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:58:37,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:58:37,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:58:37,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:58:37,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:37" (1/1) ... [2021-11-07 08:58:37,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4baa9531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:37, skipping insertion in model container [2021-11-07 08:58:37,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:58:37" (1/1) ... [2021-11-07 08:58:37,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:58:37,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:58:37,474 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] [2021-11-07 08:58:37,482 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] [2021-11-07 08:58:37,501 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:58:37,512 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:58:38,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,168 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,185 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,187 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,449 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:58:38,450 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:58:38,451 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:58:38,452 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:58:38,453 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:58:38,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:58:38,454 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:58:38,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:58:38,455 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:58:38,456 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:58:38,550 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:58:38,691 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,699 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:58:38,790 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:58:38,810 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] [2021-11-07 08:58:38,811 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] [2021-11-07 08:58:38,814 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 08:58:38,815 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 08:58:38,845 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,846 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,847 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,848 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,859 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 08:58:38,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 08:58:38,892 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 08:58:38,893 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 08:58:38,895 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 08:58:38,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 08:58:38,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 08:58:38,896 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 08:58:38,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 08:58:38,897 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 08:58:38,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-07 08:58:38,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:38,969 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 08:58:39,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:58:39,241 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:58:39,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39 WrapperNode [2021-11-07 08:58:39,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:58:39,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:58:39,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:58:39,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:58:39,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:58:39,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:58:39,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:58:39,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:58:39,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:58:39,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:58:39,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:58:39,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:58:39,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (1/1) ... [2021-11-07 08:58:39,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:58:39,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 08:58:39,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:58:39,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:58:39,587 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-07 08:58:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:58:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:58:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:58:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 08:58:39,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:58:39,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:58:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:58:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 08:58:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 08:58:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:58:39,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:58:48,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:58:48,047 INFO L299 CfgBuilder]: Removed 89 assume(true) statements. [2021-11-07 08:58:48,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:48 BoogieIcfgContainer [2021-11-07 08:58:48,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:58:48,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:58:48,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:58:48,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:58:48,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:58:37" (1/3) ... [2021-11-07 08:58:48,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f98e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:48, skipping insertion in model container [2021-11-07 08:58:48,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:58:39" (2/3) ... [2021-11-07 08:58:48,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20f98e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:58:48, skipping insertion in model container [2021-11-07 08:58:48,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:58:48" (3/3) ... [2021-11-07 08:58:48,055 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be32_harness.i [2021-11-07 08:58:48,058 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:58:48,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 08:58:48,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:58:48,099 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 08:58:48,099 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 08:58:48,113 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) [2021-11-07 08:58:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 08:58:48,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:48,128 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] [2021-11-07 08:58:48,129 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)] === [2021-11-07 08:58:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:48,134 INFO L85 PathProgramCache]: Analyzing trace with hash 733514216, now seen corresponding path program 1 times [2021-11-07 08:58:48,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:48,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768274522] [2021-11-07 08:58:48,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:48,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:48,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:48,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:48,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768274522] [2021-11-07 08:58:48,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768274522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:48,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:48,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:58:48,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082927151] [2021-11-07 08:58:48,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:48,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:58:48,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:48,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:58:48,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:58:48,668 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) [2021-11-07 08:58:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:48,695 INFO L93 Difference]: Finished difference Result 368 states and 511 transitions. [2021-11-07 08:58:48,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:58:48,697 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 [2021-11-07 08:58:48,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:48,707 INFO L225 Difference]: With dead ends: 368 [2021-11-07 08:58:48,707 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 08:58:48,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:58:48,713 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, 2.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:48,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 2.06ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 08:58:48,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 08:58:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 08:58:48,753 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) [2021-11-07 08:58:48,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2021-11-07 08:58:48,756 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 39 [2021-11-07 08:58:48,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:48,757 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2021-11-07 08:58:48,757 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) [2021-11-07 08:58:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2021-11-07 08:58:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 08:58:48,759 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:48,759 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] [2021-11-07 08:58:48,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:58:48,759 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)] === [2021-11-07 08:58:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash 699508844, now seen corresponding path program 1 times [2021-11-07 08:58:48,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:48,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50352545] [2021-11-07 08:58:48,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:48,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:49,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:49,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:49,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50352545] [2021-11-07 08:58:49,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50352545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:49,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:49,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:58:49,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629952117] [2021-11-07 08:58:49,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:49,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:58:49,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:49,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:58:49,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:58:49,054 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) [2021-11-07 08:58:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:49,248 INFO L93 Difference]: Finished difference Result 336 states and 428 transitions. [2021-11-07 08:58:49,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:58:49,249 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 [2021-11-07 08:58:49,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:49,250 INFO L225 Difference]: With dead ends: 336 [2021-11-07 08:58:49,250 INFO L226 Difference]: Without dead ends: 181 [2021-11-07 08:58:49,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.00ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:58:49,252 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 322 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 133.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.03ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.47ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:49,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 310 Invalid, 43 Unknown, 0 Unchecked, 4.03ms Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 145.47ms Time] [2021-11-07 08:58:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-07 08:58:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-07 08:58:49,262 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) [2021-11-07 08:58:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 228 transitions. [2021-11-07 08:58:49,263 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 228 transitions. Word has length 39 [2021-11-07 08:58:49,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:49,263 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 228 transitions. [2021-11-07 08:58:49,263 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) [2021-11-07 08:58:49,264 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 228 transitions. [2021-11-07 08:58:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 08:58:49,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:49,265 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] [2021-11-07 08:58:49,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:58:49,265 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)] === [2021-11-07 08:58:49,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:49,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1277536330, now seen corresponding path program 1 times [2021-11-07 08:58:49,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:49,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044350625] [2021-11-07 08:58:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:49,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:49,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:49,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044350625] [2021-11-07 08:58:49,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044350625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:49,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:49,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:58:49,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231903516] [2021-11-07 08:58:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:49,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:58:49,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:58:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:58:49,520 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) [2021-11-07 08:58:49,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:49,990 INFO L93 Difference]: Finished difference Result 397 states and 508 transitions. [2021-11-07 08:58:49,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:58:49,991 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 [2021-11-07 08:58:49,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:49,992 INFO L225 Difference]: With dead ends: 397 [2021-11-07 08:58:49,992 INFO L226 Difference]: Without dead ends: 241 [2021-11-07 08:58:49,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:58:49,994 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 138 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 380.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.56ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 431.50ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:49,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 602 Invalid, 121 Unknown, 0 Unchecked, 3.56ms Time], IncrementalHoareTripleChecker [21 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 431.50ms Time] [2021-11-07 08:58:49,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-07 08:58:50,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 193. [2021-11-07 08:58:50,023 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) [2021-11-07 08:58:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 240 transitions. [2021-11-07 08:58:50,024 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 240 transitions. Word has length 51 [2021-11-07 08:58:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:50,024 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 240 transitions. [2021-11-07 08:58:50,025 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) [2021-11-07 08:58:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 240 transitions. [2021-11-07 08:58:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-07 08:58:50,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:50,028 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] [2021-11-07 08:58:50,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:58:50,029 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)] === [2021-11-07 08:58:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1671903116, now seen corresponding path program 1 times [2021-11-07 08:58:50,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:50,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891473544] [2021-11-07 08:58:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:50,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:50,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:50,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891473544] [2021-11-07 08:58:50,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891473544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:50,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:50,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:58:50,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897645619] [2021-11-07 08:58:50,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:50,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:58:50,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:50,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:58:50,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:58:50,356 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) [2021-11-07 08:58:50,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:50,591 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2021-11-07 08:58:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:58:50,592 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 [2021-11-07 08:58:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:50,594 INFO L225 Difference]: With dead ends: 314 [2021-11-07 08:58:50,594 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 08:58:50,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 123.87ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:58:50,595 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 482 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 131.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.28ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.78ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:50,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 345 Invalid, 45 Unknown, 0 Unchecked, 2.28ms Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 144.78ms Time] [2021-11-07 08:58:50,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 08:58:50,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-07 08:58:50,602 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) [2021-11-07 08:58:50,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 239 transitions. [2021-11-07 08:58:50,603 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 239 transitions. Word has length 51 [2021-11-07 08:58:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:50,603 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 239 transitions. [2021-11-07 08:58:50,603 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) [2021-11-07 08:58:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 239 transitions. [2021-11-07 08:58:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 08:58:50,604 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:50,604 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] [2021-11-07 08:58:50,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 08:58:50,605 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)] === [2021-11-07 08:58:50,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:50,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1284348023, now seen corresponding path program 1 times [2021-11-07 08:58:50,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:50,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164393633] [2021-11-07 08:58:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:50,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:50,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:50,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164393633] [2021-11-07 08:58:50,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164393633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:50,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:50,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:58:50,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479996847] [2021-11-07 08:58:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:50,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:58:50,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:58:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:58:50,953 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) [2021-11-07 08:58:51,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:51,325 INFO L93 Difference]: Finished difference Result 265 states and 320 transitions. [2021-11-07 08:58:51,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:58:51,326 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 [2021-11-07 08:58:51,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:51,327 INFO L225 Difference]: With dead ends: 265 [2021-11-07 08:58:51,327 INFO L226 Difference]: Without dead ends: 193 [2021-11-07 08:58:51,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 239.93ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 08:58:51,329 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 624 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.68ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 192.53ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:51,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 393 Invalid, 58 Unknown, 0 Unchecked, 2.68ms Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 192.53ms Time] [2021-11-07 08:58:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-07 08:58:51,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-11-07 08:58:51,335 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) [2021-11-07 08:58:51,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 237 transitions. [2021-11-07 08:58:51,336 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 237 transitions. Word has length 57 [2021-11-07 08:58:51,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:51,336 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 237 transitions. [2021-11-07 08:58:51,336 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) [2021-11-07 08:58:51,336 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 237 transitions. [2021-11-07 08:58:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-07 08:58:51,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:51,338 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] [2021-11-07 08:58:51,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 08:58:51,338 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)] === [2021-11-07 08:58:51,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:51,339 INFO L85 PathProgramCache]: Analyzing trace with hash 718341164, now seen corresponding path program 1 times [2021-11-07 08:58:51,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:51,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328190255] [2021-11-07 08:58:51,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:51,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:51,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:51,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:51,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328190255] [2021-11-07 08:58:51,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328190255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:51,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:51,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:58:51,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572371315] [2021-11-07 08:58:51,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:51,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:58:51,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:51,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:58:51,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:58:51,895 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) [2021-11-07 08:58:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:52,559 INFO L93 Difference]: Finished difference Result 310 states and 367 transitions. [2021-11-07 08:58:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 08:58:52,559 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 [2021-11-07 08:58:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:52,561 INFO L225 Difference]: With dead ends: 310 [2021-11-07 08:58:52,561 INFO L226 Difference]: Without dead ends: 297 [2021-11-07 08:58:52,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 215.30ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:58:52,562 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 228 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 478.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.33ms SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 513.70ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:52,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 851 Invalid, 201 Unknown, 0 Unchecked, 4.33ms Time], IncrementalHoareTripleChecker [40 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 513.70ms Time] [2021-11-07 08:58:52,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-07 08:58:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 199. [2021-11-07 08:58:52,568 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) [2021-11-07 08:58:52,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 242 transitions. [2021-11-07 08:58:52,569 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 242 transitions. Word has length 63 [2021-11-07 08:58:52,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:52,570 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 242 transitions. [2021-11-07 08:58:52,570 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) [2021-11-07 08:58:52,570 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 242 transitions. [2021-11-07 08:58:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:58:52,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:52,572 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] [2021-11-07 08:58:52,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 08:58:52,572 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)] === [2021-11-07 08:58:52,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:52,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1235696670, now seen corresponding path program 1 times [2021-11-07 08:58:52,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:52,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623988403] [2021-11-07 08:58:52,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:52,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:53,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:53,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623988403] [2021-11-07 08:58:53,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623988403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:53,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:53,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 08:58:53,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801796737] [2021-11-07 08:58:53,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:53,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 08:58:53,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:53,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 08:58:53,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 08:58:53,173 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) [2021-11-07 08:58:55,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:58:57,380 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:58:58,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:58:58,536 INFO L93 Difference]: Finished difference Result 595 states and 724 transitions. [2021-11-07 08:58:58,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:58:58,537 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 [2021-11-07 08:58:58,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:58:58,539 INFO L225 Difference]: With dead ends: 595 [2021-11-07 08:58:58,539 INFO L226 Difference]: Without dead ends: 418 [2021-11-07 08:58:58,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 129.99ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:58:58,540 INFO L933 BasicCegarLoop]: 164 mSDtfsCounter, 386 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 27 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4941.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.47ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5243.83ms IncrementalHoareTripleChecker+Time [2021-11-07 08:58:58,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 567 Invalid, 299 Unknown, 0 Unchecked, 5.47ms Time], IncrementalHoareTripleChecker [27 Valid, 270 Invalid, 2 Unknown, 0 Unchecked, 5243.83ms Time] [2021-11-07 08:58:58,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-07 08:58:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 239. [2021-11-07 08:58:58,548 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) [2021-11-07 08:58:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 293 transitions. [2021-11-07 08:58:58,549 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 293 transitions. Word has length 67 [2021-11-07 08:58:58,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:58:58,549 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 293 transitions. [2021-11-07 08:58:58,550 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) [2021-11-07 08:58:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 293 transitions. [2021-11-07 08:58:58,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:58:58,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:58:58,551 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] [2021-11-07 08:58:58,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 08:58:58,552 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)] === [2021-11-07 08:58:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:58:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash -555638300, now seen corresponding path program 1 times [2021-11-07 08:58:58,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:58:58,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954461328] [2021-11-07 08:58:58,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:58:58,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:58:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:58:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:58:59,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:58:59,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954461328] [2021-11-07 08:58:59,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954461328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:58:59,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:58:59,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 08:58:59,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605752288] [2021-11-07 08:58:59,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:58:59,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:58:59,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:58:59,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:58:59,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:58:59,451 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) [2021-11-07 08:59:01,513 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:03,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:05,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:05,008 INFO L93 Difference]: Finished difference Result 505 states and 610 transitions. [2021-11-07 08:59:05,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:59:05,009 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 [2021-11-07 08:59:05,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:05,010 INFO L225 Difference]: With dead ends: 505 [2021-11-07 08:59:05,010 INFO L226 Difference]: Without dead ends: 366 [2021-11-07 08:59:05,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 535.56ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:59:05,011 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 528 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 25 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4887.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.17ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5200.02ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:05,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 748 Invalid, 289 Unknown, 0 Unchecked, 6.17ms Time], IncrementalHoareTripleChecker [25 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 5200.02ms Time] [2021-11-07 08:59:05,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-07 08:59:05,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 254. [2021-11-07 08:59:05,019 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) [2021-11-07 08:59:05,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 311 transitions. [2021-11-07 08:59:05,020 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 311 transitions. Word has length 67 [2021-11-07 08:59:05,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:05,021 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 311 transitions. [2021-11-07 08:59:05,021 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) [2021-11-07 08:59:05,021 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 311 transitions. [2021-11-07 08:59:05,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:59:05,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:05,022 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] [2021-11-07 08:59:05,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 08:59:05,023 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)] === [2021-11-07 08:59:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:05,023 INFO L85 PathProgramCache]: Analyzing trace with hash -2143986202, now seen corresponding path program 1 times [2021-11-07 08:59:05,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:05,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643419428] [2021-11-07 08:59:05,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:05,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:06,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:06,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643419428] [2021-11-07 08:59:06,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643419428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:06,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:06,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 08:59:06,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188336527] [2021-11-07 08:59:06,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:06,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 08:59:06,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:06,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 08:59:06,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:59:06,147 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) [2021-11-07 08:59:08,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:10,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:12,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:14,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:16,742 INFO L93 Difference]: Finished difference Result 455 states and 547 transitions. [2021-11-07 08:59:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 08:59:16,742 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 [2021-11-07 08:59:16,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:16,744 INFO L225 Difference]: With dead ends: 455 [2021-11-07 08:59:16,744 INFO L226 Difference]: Without dead ends: 377 [2021-11-07 08:59:16,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 656.72ms TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-11-07 08:59:16,745 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 716 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 39 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9620.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.81ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10202.39ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:16,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [716 Valid, 1231 Invalid, 566 Unknown, 0 Unchecked, 9.81ms Time], IncrementalHoareTripleChecker [39 Valid, 523 Invalid, 4 Unknown, 0 Unchecked, 10202.39ms Time] [2021-11-07 08:59:16,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-07 08:59:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 259. [2021-11-07 08:59:16,754 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) [2021-11-07 08:59:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 318 transitions. [2021-11-07 08:59:16,755 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 318 transitions. Word has length 67 [2021-11-07 08:59:16,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:16,755 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 318 transitions. [2021-11-07 08:59:16,755 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) [2021-11-07 08:59:16,756 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 318 transitions. [2021-11-07 08:59:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 08:59:16,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:16,757 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] [2021-11-07 08:59:16,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 08:59:16,757 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)] === [2021-11-07 08:59:16,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1892815656, now seen corresponding path program 1 times [2021-11-07 08:59:16,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:16,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288600002] [2021-11-07 08:59:16,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:16,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:20,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:20,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288600002] [2021-11-07 08:59:20,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288600002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:20,161 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:20,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-07 08:59:20,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633945102] [2021-11-07 08:59:20,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 08:59:20,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:20,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 08:59:20,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:59:20,162 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) [2021-11-07 08:59:22,220 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 [] [2021-11-07 08:59:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:23,513 INFO L93 Difference]: Finished difference Result 552 states and 681 transitions. [2021-11-07 08:59:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 08:59:23,513 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 [2021-11-07 08:59:23,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:23,515 INFO L225 Difference]: With dead ends: 552 [2021-11-07 08:59:23,515 INFO L226 Difference]: Without dead ends: 327 [2021-11-07 08:59:23,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 509.57ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-11-07 08:59:23,516 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 700 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2843.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.09ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3021.70ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:23,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 944 Invalid, 299 Unknown, 0 Unchecked, 6.09ms Time], IncrementalHoareTripleChecker [26 Valid, 272 Invalid, 1 Unknown, 0 Unchecked, 3021.70ms Time] [2021-11-07 08:59:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-11-07 08:59:23,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 262. [2021-11-07 08:59:23,526 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) [2021-11-07 08:59:23,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 322 transitions. [2021-11-07 08:59:23,527 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 322 transitions. Word has length 67 [2021-11-07 08:59:23,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:23,527 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 322 transitions. [2021-11-07 08:59:23,528 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) [2021-11-07 08:59:23,528 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 322 transitions. [2021-11-07 08:59:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 08:59:23,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:23,529 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] [2021-11-07 08:59:23,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 08:59:23,529 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)] === [2021-11-07 08:59:23,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:23,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2013763211, now seen corresponding path program 1 times [2021-11-07 08:59:23,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:23,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505044886] [2021-11-07 08:59:23,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:23,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:25,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:25,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505044886] [2021-11-07 08:59:25,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505044886] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:25,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:25,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 08:59:25,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499925408] [2021-11-07 08:59:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:25,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 08:59:25,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:25,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 08:59:25,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-11-07 08:59:25,382 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) [2021-11-07 08:59:27,425 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 [] [2021-11-07 08:59:29,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:31,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:33,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:35,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:38,076 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:40,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:42,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:44,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 08:59:52,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:52,961 INFO L93 Difference]: Finished difference Result 928 states and 1133 transitions. [2021-11-07 08:59:52,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 08:59:52,962 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 [2021-11-07 08:59:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:52,965 INFO L225 Difference]: With dead ends: 928 [2021-11-07 08:59:52,965 INFO L226 Difference]: Without dead ends: 686 [2021-11-07 08:59:52,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 763 ImplicationChecksByTransitivity, 3795.61ms TimeCoverageRelationStatistics Valid=503, Invalid=2359, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 08:59:52,967 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 1602 mSDsluCounter, 4063 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 103 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23067.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 4471 SdHoareTripleChecker+Invalid, 2026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.68ms SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24523.59ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:52,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 4471 Invalid, 2026 Unknown, 0 Unchecked, 21.68ms Time], IncrementalHoareTripleChecker [103 Valid, 1914 Invalid, 9 Unknown, 0 Unchecked, 24523.59ms Time] [2021-11-07 08:59:52,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2021-11-07 08:59:52,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 341. [2021-11-07 08:59:52,982 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) [2021-11-07 08:59:52,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 408 transitions. [2021-11-07 08:59:52,983 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 408 transitions. Word has length 74 [2021-11-07 08:59:52,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:52,983 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 408 transitions. [2021-11-07 08:59:52,983 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) [2021-11-07 08:59:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 408 transitions. [2021-11-07 08:59:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 08:59:52,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:52,984 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] [2021-11-07 08:59:52,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 08:59:52,985 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)] === [2021-11-07 08:59:52,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:52,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1453063433, now seen corresponding path program 1 times [2021-11-07 08:59:52,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:52,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184470232] [2021-11-07 08:59:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:52,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:53,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:53,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:53,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184470232] [2021-11-07 08:59:53,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184470232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:53,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:53,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 08:59:53,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404110267] [2021-11-07 08:59:53,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:53,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:59:53,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:53,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:59:53,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:59:53,863 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) [2021-11-07 08:59:55,921 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 [] [2021-11-07 08:59:57,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:59:57,390 INFO L93 Difference]: Finished difference Result 823 states and 976 transitions. [2021-11-07 08:59:57,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 08:59:57,391 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 [2021-11-07 08:59:57,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:59:57,393 INFO L225 Difference]: With dead ends: 823 [2021-11-07 08:59:57,393 INFO L226 Difference]: Without dead ends: 613 [2021-11-07 08:59:57,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 480.23ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-07 08:59:57,394 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 534 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3016.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.98ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3227.18ms IncrementalHoareTripleChecker+Time [2021-11-07 08:59:57,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [534 Valid, 1106 Invalid, 353 Unknown, 0 Unchecked, 4.98ms Time], IncrementalHoareTripleChecker [32 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 3227.18ms Time] [2021-11-07 08:59:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-07 08:59:57,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 352. [2021-11-07 08:59:57,405 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) [2021-11-07 08:59:57,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 421 transitions. [2021-11-07 08:59:57,406 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 421 transitions. Word has length 74 [2021-11-07 08:59:57,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:59:57,407 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 421 transitions. [2021-11-07 08:59:57,407 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) [2021-11-07 08:59:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 421 transitions. [2021-11-07 08:59:57,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 08:59:57,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 08:59:57,408 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] [2021-11-07 08:59:57,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 08:59:57,408 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)] === [2021-11-07 08:59:57,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:59:57,409 INFO L85 PathProgramCache]: Analyzing trace with hash -360304177, now seen corresponding path program 1 times [2021-11-07 08:59:57,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:59:57,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782781402] [2021-11-07 08:59:57,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:59:57,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:59:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:59:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:59:59,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:59:59,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782781402] [2021-11-07 08:59:59,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782781402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:59:59,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:59:59,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-07 08:59:59,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512888941] [2021-11-07 08:59:59,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 08:59:59,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-07 08:59:59,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:59:59,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 08:59:59,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-11-07 08:59:59,336 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) [2021-11-07 09:00:01,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:03,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:05,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:07,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:09,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:12,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:14,190 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:16,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:18,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:20,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:22,663 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:24,783 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 [] [2021-11-07 09:00:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:33,779 INFO L93 Difference]: Finished difference Result 1013 states and 1211 transitions. [2021-11-07 09:00:33,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-07 09:00:33,780 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 [2021-11-07 09:00:33,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:33,783 INFO L225 Difference]: With dead ends: 1013 [2021-11-07 09:00:33,783 INFO L226 Difference]: Without dead ends: 814 [2021-11-07 09:00:33,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 4187.43ms TimeCoverageRelationStatistics Valid=652, Invalid=2888, Unknown=0, NotChecked=0, Total=3540 [2021-11-07 09:00:33,785 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1384 mSDsluCounter, 4066 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 88 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29307.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4500 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.72ms SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31139.94ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:33,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1384 Valid, 4500 Invalid, 2195 Unknown, 0 Unchecked, 24.72ms Time], IncrementalHoareTripleChecker [88 Valid, 2095 Invalid, 12 Unknown, 0 Unchecked, 31139.94ms Time] [2021-11-07 09:00:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2021-11-07 09:00:33,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 354. [2021-11-07 09:00:33,798 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) [2021-11-07 09:00:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 424 transitions. [2021-11-07 09:00:33,799 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 424 transitions. Word has length 74 [2021-11-07 09:00:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:33,800 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 424 transitions. [2021-11-07 09:00:33,800 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) [2021-11-07 09:00:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 424 transitions. [2021-11-07 09:00:33,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-07 09:00:33,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:33,801 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] [2021-11-07 09:00:33,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-07 09:00:33,801 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)] === [2021-11-07 09:00:33,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:33,802 INFO L85 PathProgramCache]: Analyzing trace with hash -319629427, now seen corresponding path program 1 times [2021-11-07 09:00:33,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:33,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959302638] [2021-11-07 09:00:33,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:33,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:34,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:34,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959302638] [2021-11-07 09:00:34,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959302638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:34,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:34,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:00:34,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003897383] [2021-11-07 09:00:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:34,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:00:34,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:34,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:00:34,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:00:34,281 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) [2021-11-07 09:00:36,337 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 [] [2021-11-07 09:00:37,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:37,221 INFO L93 Difference]: Finished difference Result 783 states and 933 transitions. [2021-11-07 09:00:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:00:37,222 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 [2021-11-07 09:00:37,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:37,224 INFO L225 Difference]: With dead ends: 783 [2021-11-07 09:00:37,224 INFO L226 Difference]: Without dead ends: 497 [2021-11-07 09:00:37,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 78.59ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 09:00:37,225 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 321 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2676.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.26ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2890.10ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:37,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 745 Invalid, 252 Unknown, 0 Unchecked, 3.26ms Time], IncrementalHoareTripleChecker [32 Valid, 219 Invalid, 1 Unknown, 0 Unchecked, 2890.10ms Time] [2021-11-07 09:00:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-11-07 09:00:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 352. [2021-11-07 09:00:37,238 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) [2021-11-07 09:00:37,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 413 transitions. [2021-11-07 09:00:37,239 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 413 transitions. Word has length 74 [2021-11-07 09:00:37,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:37,239 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 413 transitions. [2021-11-07 09:00:37,239 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) [2021-11-07 09:00:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 413 transitions. [2021-11-07 09:00:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-07 09:00:37,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:37,240 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] [2021-11-07 09:00:37,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 09:00:37,241 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)] === [2021-11-07 09:00:37,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1815438626, now seen corresponding path program 1 times [2021-11-07 09:00:37,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:37,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748987892] [2021-11-07 09:00:37,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:37,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:37,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:37,830 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748987892] [2021-11-07 09:00:37,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748987892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:37,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:37,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 09:00:37,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179940940] [2021-11-07 09:00:37,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:37,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 09:00:37,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 09:00:37,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:00:37,832 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) [2021-11-07 09:00:38,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:38,550 INFO L93 Difference]: Finished difference Result 740 states and 852 transitions. [2021-11-07 09:00:38,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 09:00:38,550 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 [2021-11-07 09:00:38,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:38,552 INFO L225 Difference]: With dead ends: 740 [2021-11-07 09:00:38,552 INFO L226 Difference]: Without dead ends: 415 [2021-11-07 09:00:38,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 209.61ms TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:00:38,553 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 119 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 563.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.57ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 602.50ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:38,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1340 Invalid, 265 Unknown, 0 Unchecked, 2.57ms Time], IncrementalHoareTripleChecker [36 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 602.50ms Time] [2021-11-07 09:00:38,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2021-11-07 09:00:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 352. [2021-11-07 09:00:38,564 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) [2021-11-07 09:00:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 404 transitions. [2021-11-07 09:00:38,565 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 404 transitions. Word has length 75 [2021-11-07 09:00:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:38,565 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 404 transitions. [2021-11-07 09:00:38,565 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) [2021-11-07 09:00:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 404 transitions. [2021-11-07 09:00:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 09:00:38,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:38,566 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] [2021-11-07 09:00:38,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 09:00:38,567 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)] === [2021-11-07 09:00:38,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1592329908, now seen corresponding path program 1 times [2021-11-07 09:00:38,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:38,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160042656] [2021-11-07 09:00:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:38,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:39,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:39,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160042656] [2021-11-07 09:00:39,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160042656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:39,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:39,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-07 09:00:39,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102164173] [2021-11-07 09:00:39,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:39,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 09:00:39,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:39,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 09:00:39,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-07 09:00:39,537 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) [2021-11-07 09:00:41,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:43,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:45,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:47,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:00:50,035 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 [] [2021-11-07 09:00:52,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:52,793 INFO L93 Difference]: Finished difference Result 673 states and 773 transitions. [2021-11-07 09:00:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 09:00:52,793 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 [2021-11-07 09:00:52,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:52,795 INFO L225 Difference]: With dead ends: 673 [2021-11-07 09:00:52,795 INFO L226 Difference]: Without dead ends: 478 [2021-11-07 09:00:52,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1296.28ms TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552 [2021-11-07 09:00:52,796 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 740 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 44 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11611.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1578 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.61ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12284.30ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:52,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [740 Valid, 1578 Invalid, 632 Unknown, 0 Unchecked, 7.61ms Time], IncrementalHoareTripleChecker [44 Valid, 583 Invalid, 5 Unknown, 0 Unchecked, 12284.30ms Time] [2021-11-07 09:00:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-07 09:00:52,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 350. [2021-11-07 09:00:52,809 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) [2021-11-07 09:00:52,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 400 transitions. [2021-11-07 09:00:52,810 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 400 transitions. Word has length 76 [2021-11-07 09:00:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:52,810 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 400 transitions. [2021-11-07 09:00:52,810 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) [2021-11-07 09:00:52,811 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 400 transitions. [2021-11-07 09:00:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 09:00:52,812 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:52,812 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] [2021-11-07 09:00:52,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 09:00:52,812 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)] === [2021-11-07 09:00:52,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:52,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1068292604, now seen corresponding path program 1 times [2021-11-07 09:00:52,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:52,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378886760] [2021-11-07 09:00:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:52,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:53,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:53,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:53,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378886760] [2021-11-07 09:00:53,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378886760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:53,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:53,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 09:00:53,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151155056] [2021-11-07 09:00:53,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:53,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 09:00:53,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 09:00:53,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 09:00:53,007 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) [2021-11-07 09:00:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:00:53,328 INFO L93 Difference]: Finished difference Result 580 states and 662 transitions. [2021-11-07 09:00:53,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:00:53,329 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 [2021-11-07 09:00:53,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:00:53,330 INFO L225 Difference]: With dead ends: 580 [2021-11-07 09:00:53,330 INFO L226 Difference]: Without dead ends: 252 [2021-11-07 09:00:53,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:00:53,331 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 30 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 266.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.23ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 285.46ms IncrementalHoareTripleChecker+Time [2021-11-07 09:00:53,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 573 Invalid, 103 Unknown, 0 Unchecked, 1.23ms Time], IncrementalHoareTripleChecker [18 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 285.46ms Time] [2021-11-07 09:00:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-07 09:00:53,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 231. [2021-11-07 09:00:53,338 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) [2021-11-07 09:00:53,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 259 transitions. [2021-11-07 09:00:53,339 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 259 transitions. Word has length 79 [2021-11-07 09:00:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:00:53,339 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 259 transitions. [2021-11-07 09:00:53,339 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) [2021-11-07 09:00:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 259 transitions. [2021-11-07 09:00:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 09:00:53,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:00:53,340 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 09:00:53,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 09:00:53,340 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)] === [2021-11-07 09:00:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:00:53,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1364907914, now seen corresponding path program 1 times [2021-11-07 09:00:53,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:00:53,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413757827] [2021-11-07 09:00:53,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:00:53,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:00:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:00:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:00:54,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:00:54,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413757827] [2021-11-07 09:00:54,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413757827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:00:54,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:00:54,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 09:00:54,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853327967] [2021-11-07 09:00:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:00:54,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 09:00:54,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:00:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 09:00:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:00:54,679 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) [2021-11-07 09:00:56,738 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 [] [2021-11-07 09:00:58,861 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:00,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:03,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:05,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:07,802 INFO L93 Difference]: Finished difference Result 500 states and 555 transitions. [2021-11-07 09:01:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 09:01:07,803 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 [2021-11-07 09:01:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:07,804 INFO L225 Difference]: With dead ends: 500 [2021-11-07 09:01:07,804 INFO L226 Difference]: Without dead ends: 300 [2021-11-07 09:01:07,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1285.20ms TimeCoverageRelationStatistics Valid=168, Invalid=432, Unknown=0, NotChecked=0, Total=600 [2021-11-07 09:01:07,805 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 428 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 59 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11522.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.97ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12295.41ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:07,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 1138 Invalid, 611 Unknown, 0 Unchecked, 5.97ms Time], IncrementalHoareTripleChecker [59 Valid, 547 Invalid, 5 Unknown, 0 Unchecked, 12295.41ms Time] [2021-11-07 09:01:07,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-07 09:01:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 250. [2021-11-07 09:01:07,814 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) [2021-11-07 09:01:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 278 transitions. [2021-11-07 09:01:07,815 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 278 transitions. Word has length 79 [2021-11-07 09:01:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:07,815 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 278 transitions. [2021-11-07 09:01:07,815 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) [2021-11-07 09:01:07,815 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 278 transitions. [2021-11-07 09:01:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-07 09:01:07,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:07,816 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] [2021-11-07 09:01:07,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 09:01:07,817 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)] === [2021-11-07 09:01:07,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1084692216, now seen corresponding path program 1 times [2021-11-07 09:01:07,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:07,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895967499] [2021-11-07 09:01:07,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:07,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:10,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:10,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895967499] [2021-11-07 09:01:10,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895967499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:10,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:10,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 09:01:10,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517422682] [2021-11-07 09:01:10,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:10,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 09:01:10,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:10,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 09:01:10,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-07 09:01:10,967 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) [2021-11-07 09:01:13,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:15,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:17,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:17,797 INFO L93 Difference]: Finished difference Result 510 states and 567 transitions. [2021-11-07 09:01:17,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 09:01:17,797 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 [2021-11-07 09:01:17,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:17,798 INFO L225 Difference]: With dead ends: 510 [2021-11-07 09:01:17,798 INFO L226 Difference]: Without dead ends: 359 [2021-11-07 09:01:17,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1741.59ms TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2021-11-07 09:01:17,800 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 1014 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 30 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5081.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.44ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5417.02ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:17,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 1335 Invalid, 439 Unknown, 0 Unchecked, 6.44ms Time], IncrementalHoareTripleChecker [30 Valid, 407 Invalid, 2 Unknown, 0 Unchecked, 5417.02ms Time] [2021-11-07 09:01:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-11-07 09:01:17,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 271. [2021-11-07 09:01:17,812 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) [2021-11-07 09:01:17,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 300 transitions. [2021-11-07 09:01:17,813 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 300 transitions. Word has length 79 [2021-11-07 09:01:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:17,814 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 300 transitions. [2021-11-07 09:01:17,814 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) [2021-11-07 09:01:17,814 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 300 transitions. [2021-11-07 09:01:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 09:01:17,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:17,815 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] [2021-11-07 09:01:17,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 09:01:17,815 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)] === [2021-11-07 09:01:17,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:17,816 INFO L85 PathProgramCache]: Analyzing trace with hash -832956375, now seen corresponding path program 1 times [2021-11-07 09:01:17,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:17,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571044752] [2021-11-07 09:01:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:17,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:19,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:19,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571044752] [2021-11-07 09:01:19,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571044752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:19,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:19,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 09:01:19,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541930705] [2021-11-07 09:01:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:19,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 09:01:19,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 09:01:19,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:01:19,346 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) [2021-11-07 09:01:21,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:23,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:25,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:27,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:29,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:32,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:34,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:34,672 INFO L93 Difference]: Finished difference Result 500 states and 557 transitions. [2021-11-07 09:01:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-07 09:01:34,672 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 [2021-11-07 09:01:34,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:34,673 INFO L225 Difference]: With dead ends: 500 [2021-11-07 09:01:34,673 INFO L226 Difference]: Without dead ends: 349 [2021-11-07 09:01:34,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 968.35ms TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2021-11-07 09:01:34,674 INFO L933 BasicCegarLoop]: 275 mSDtfsCounter, 540 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 30 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13945.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.37ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14872.13ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:34,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [540 Valid, 1861 Invalid, 769 Unknown, 0 Unchecked, 8.37ms Time], IncrementalHoareTripleChecker [30 Valid, 733 Invalid, 6 Unknown, 0 Unchecked, 14872.13ms Time] [2021-11-07 09:01:34,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-07 09:01:34,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 277. [2021-11-07 09:01:34,686 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) [2021-11-07 09:01:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 307 transitions. [2021-11-07 09:01:34,687 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 307 transitions. Word has length 82 [2021-11-07 09:01:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:34,687 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 307 transitions. [2021-11-07 09:01:34,691 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) [2021-11-07 09:01:34,691 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 307 transitions. [2021-11-07 09:01:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:01:34,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:34,692 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] [2021-11-07 09:01:34,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 09:01:34,692 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)] === [2021-11-07 09:01:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 121635765, now seen corresponding path program 1 times [2021-11-07 09:01:34,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:34,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272005321] [2021-11-07 09:01:34,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:34,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:35,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:35,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272005321] [2021-11-07 09:01:35,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272005321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:35,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:35,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:01:35,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002318784] [2021-11-07 09:01:35,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:35,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:01:35,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:35,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:01:35,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:01:35,451 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) [2021-11-07 09:01:37,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:39,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:40,921 INFO L93 Difference]: Finished difference Result 571 states and 640 transitions. [2021-11-07 09:01:40,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 09:01:40,922 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 [2021-11-07 09:01:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:40,924 INFO L225 Difference]: With dead ends: 571 [2021-11-07 09:01:40,924 INFO L226 Difference]: Without dead ends: 425 [2021-11-07 09:01:40,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 506.35ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:01:40,925 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 355 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4835.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.46ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5152.81ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:40,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 784 Invalid, 318 Unknown, 0 Unchecked, 3.46ms Time], IncrementalHoareTripleChecker [20 Valid, 296 Invalid, 2 Unknown, 0 Unchecked, 5152.81ms Time] [2021-11-07 09:01:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2021-11-07 09:01:40,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 297. [2021-11-07 09:01:40,933 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) [2021-11-07 09:01:40,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 327 transitions. [2021-11-07 09:01:40,934 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 327 transitions. Word has length 85 [2021-11-07 09:01:40,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 327 transitions. [2021-11-07 09:01:40,934 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) [2021-11-07 09:01:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 327 transitions. [2021-11-07 09:01:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:01:40,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:40,935 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] [2021-11-07 09:01:40,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-07 09:01:40,935 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)] === [2021-11-07 09:01:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1466712137, now seen corresponding path program 1 times [2021-11-07 09:01:40,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:40,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726395111] [2021-11-07 09:01:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:40,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:42,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:42,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726395111] [2021-11-07 09:01:42,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726395111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:42,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:42,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-07 09:01:42,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89547073] [2021-11-07 09:01:42,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:42,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 09:01:42,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:42,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 09:01:42,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-11-07 09:01:42,280 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) [2021-11-07 09:01:44,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:46,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:48,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:50,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:01:53,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:01:53,548 INFO L93 Difference]: Finished difference Result 550 states and 606 transitions. [2021-11-07 09:01:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 09:01:53,549 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 [2021-11-07 09:01:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:01:53,550 INFO L225 Difference]: With dead ends: 550 [2021-11-07 09:01:53,550 INFO L226 Difference]: Without dead ends: 472 [2021-11-07 09:01:53,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1494.90ms TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2021-11-07 09:01:53,551 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 1172 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 64 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9623.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1358 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.67ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10322.16ms IncrementalHoareTripleChecker+Time [2021-11-07 09:01:53,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 1358 Invalid, 666 Unknown, 0 Unchecked, 7.67ms Time], IncrementalHoareTripleChecker [64 Valid, 598 Invalid, 4 Unknown, 0 Unchecked, 10322.16ms Time] [2021-11-07 09:01:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-07 09:01:53,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 340. [2021-11-07 09:01:53,562 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) [2021-11-07 09:01:53,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2021-11-07 09:01:53,563 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 85 [2021-11-07 09:01:53,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:01:53,564 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2021-11-07 09:01:53,564 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) [2021-11-07 09:01:53,564 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2021-11-07 09:01:53,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:01:53,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:01:53,565 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] [2021-11-07 09:01:53,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 09:01:53,565 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)] === [2021-11-07 09:01:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:01:53,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1724877575, now seen corresponding path program 1 times [2021-11-07 09:01:53,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:01:53,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826404148] [2021-11-07 09:01:53,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:01:53,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:01:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:01:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:01:58,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:01:58,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826404148] [2021-11-07 09:01:58,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826404148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:01:58,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:01:58,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-07 09:01:58,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649380991] [2021-11-07 09:01:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:01:58,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 09:01:58,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:01:58,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 09:01:58,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-07 09:01:58,449 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) [2021-11-07 09:02:00,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:02,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:04,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:04,509 INFO L93 Difference]: Finished difference Result 497 states and 546 transitions. [2021-11-07 09:02:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 09:02:04,511 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 [2021-11-07 09:02:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:04,513 INFO L225 Difference]: With dead ends: 497 [2021-11-07 09:02:04,513 INFO L226 Difference]: Without dead ends: 386 [2021-11-07 09:02:04,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1202.35ms TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2021-11-07 09:02:04,514 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 1668 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 91 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4915.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1668 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.94ms SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5239.75ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:04,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1668 Valid, 692 Invalid, 400 Unknown, 0 Unchecked, 4.94ms Time], IncrementalHoareTripleChecker [91 Valid, 307 Invalid, 2 Unknown, 0 Unchecked, 5239.75ms Time] [2021-11-07 09:02:04,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-07 09:02:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 268. [2021-11-07 09:02:04,526 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) [2021-11-07 09:02:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 304 transitions. [2021-11-07 09:02:04,527 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 304 transitions. Word has length 85 [2021-11-07 09:02:04,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:04,528 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 304 transitions. [2021-11-07 09:02:04,528 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) [2021-11-07 09:02:04,528 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 304 transitions. [2021-11-07 09:02:04,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:02:04,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:04,529 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] [2021-11-07 09:02:04,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 09:02:04,529 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)] === [2021-11-07 09:02:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:04,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1137079539, now seen corresponding path program 1 times [2021-11-07 09:02:04,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:04,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437738211] [2021-11-07 09:02:04,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:04,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:05,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:05,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437738211] [2021-11-07 09:02:05,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437738211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:05,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:05,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 09:02:05,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935549695] [2021-11-07 09:02:05,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:05,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 09:02:05,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:05,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 09:02:05,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:02:05,395 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) [2021-11-07 09:02:07,452 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:09,595 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:11,084 INFO L93 Difference]: Finished difference Result 436 states and 487 transitions. [2021-11-07 09:02:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:02:11,084 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 [2021-11-07 09:02:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:11,085 INFO L225 Difference]: With dead ends: 436 [2021-11-07 09:02:11,085 INFO L226 Difference]: Without dead ends: 370 [2021-11-07 09:02:11,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 648.21ms TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2021-11-07 09:02:11,086 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 582 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4956.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5268.51ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:11,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [582 Valid, 1174 Invalid, 419 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [41 Valid, 376 Invalid, 2 Unknown, 0 Unchecked, 5268.51ms Time] [2021-11-07 09:02:11,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-07 09:02:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 278. [2021-11-07 09:02:11,098 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) [2021-11-07 09:02:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 315 transitions. [2021-11-07 09:02:11,098 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 315 transitions. Word has length 85 [2021-11-07 09:02:11,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:11,098 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 315 transitions. [2021-11-07 09:02:11,099 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) [2021-11-07 09:02:11,099 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 315 transitions. [2021-11-07 09:02:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:02:11,099 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:11,099 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] [2021-11-07 09:02:11,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 09:02:11,099 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)] === [2021-11-07 09:02:11,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash 353688179, now seen corresponding path program 1 times [2021-11-07 09:02:11,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:11,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654818379] [2021-11-07 09:02:11,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:11,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:12,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:12,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:12,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654818379] [2021-11-07 09:02:12,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654818379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:12,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:12,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-07 09:02:12,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043055048] [2021-11-07 09:02:12,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:12,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 09:02:12,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:12,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 09:02:12,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-07 09:02:12,482 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) [2021-11-07 09:02:14,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:16,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:18,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:20,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:23,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:25,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:27,484 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 [] [2021-11-07 09:02:29,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:29,481 INFO L93 Difference]: Finished difference Result 588 states and 667 transitions. [2021-11-07 09:02:29,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 09:02:29,482 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 [2021-11-07 09:02:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:29,483 INFO L225 Difference]: With dead ends: 588 [2021-11-07 09:02:29,483 INFO L226 Difference]: Without dead ends: 422 [2021-11-07 09:02:29,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 941.13ms TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-07 09:02:29,484 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 804 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 48 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15277.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.33ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16454.32ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:29,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 1228 Invalid, 538 Unknown, 0 Unchecked, 6.33ms Time], IncrementalHoareTripleChecker [48 Valid, 483 Invalid, 7 Unknown, 0 Unchecked, 16454.32ms Time] [2021-11-07 09:02:29,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-07 09:02:29,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 306. [2021-11-07 09:02:29,498 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) [2021-11-07 09:02:29,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 344 transitions. [2021-11-07 09:02:29,499 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 344 transitions. Word has length 85 [2021-11-07 09:02:29,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:29,499 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 344 transitions. [2021-11-07 09:02:29,499 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) [2021-11-07 09:02:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 344 transitions. [2021-11-07 09:02:29,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:02:29,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:29,500 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] [2021-11-07 09:02:29,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-07 09:02:29,501 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)] === [2021-11-07 09:02:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1234659723, now seen corresponding path program 1 times [2021-11-07 09:02:29,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:29,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081717385] [2021-11-07 09:02:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:29,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:30,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:30,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081717385] [2021-11-07 09:02:30,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081717385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:30,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:30,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 09:02:30,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437964395] [2021-11-07 09:02:30,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:30,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 09:02:30,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:30,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 09:02:30,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-11-07 09:02:30,907 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) [2021-11-07 09:02:32,951 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 [] [2021-11-07 09:02:35,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:37,215 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:39,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:41,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:43,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:45,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:47,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:50,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:52,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:02:52,882 INFO L93 Difference]: Finished difference Result 560 states and 635 transitions. [2021-11-07 09:02:52,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 09:02:52,883 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 [2021-11-07 09:02:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:02:52,884 INFO L225 Difference]: With dead ends: 560 [2021-11-07 09:02:52,884 INFO L226 Difference]: Without dead ends: 384 [2021-11-07 09:02:52,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1112.10ms TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-11-07 09:02:52,885 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 823 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 46 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20013.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.66ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21406.84ms IncrementalHoareTripleChecker+Time [2021-11-07 09:02:52,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [823 Valid, 1947 Invalid, 813 Unknown, 0 Unchecked, 8.66ms Time], IncrementalHoareTripleChecker [46 Valid, 758 Invalid, 9 Unknown, 0 Unchecked, 21406.84ms Time] [2021-11-07 09:02:52,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-07 09:02:52,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 317. [2021-11-07 09:02:52,898 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) [2021-11-07 09:02:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 355 transitions. [2021-11-07 09:02:52,899 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 355 transitions. Word has length 85 [2021-11-07 09:02:52,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:02:52,899 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 355 transitions. [2021-11-07 09:02:52,899 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) [2021-11-07 09:02:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 355 transitions. [2021-11-07 09:02:52,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-07 09:02:52,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:02:52,900 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] [2021-11-07 09:02:52,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-07 09:02:52,901 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)] === [2021-11-07 09:02:52,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:02:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1192781619, now seen corresponding path program 1 times [2021-11-07 09:02:52,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:02:52,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733682434] [2021-11-07 09:02:52,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:02:52,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:02:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:02:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:02:55,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:02:55,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733682434] [2021-11-07 09:02:55,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733682434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:02:55,773 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:02:55,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-07 09:02:55,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154606008] [2021-11-07 09:02:55,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:02:55,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 09:02:55,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:02:55,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 09:02:55,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:02:55,774 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) [2021-11-07 09:02:57,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:02:59,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:02,120 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 [] [2021-11-07 09:03:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:03,655 INFO L93 Difference]: Finished difference Result 697 states and 796 transitions. [2021-11-07 09:03:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 09:03:03,655 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 [2021-11-07 09:03:03,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:03,656 INFO L225 Difference]: With dead ends: 697 [2021-11-07 09:03:03,656 INFO L226 Difference]: Without dead ends: 472 [2021-11-07 09:03:03,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 747.06ms TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2021-11-07 09:03:03,657 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 447 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6923.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.73ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7422.76ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:03,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1291 Invalid, 361 Unknown, 0 Unchecked, 4.73ms Time], IncrementalHoareTripleChecker [9 Valid, 349 Invalid, 3 Unknown, 0 Unchecked, 7422.76ms Time] [2021-11-07 09:03:03,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-11-07 09:03:03,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 317. [2021-11-07 09:03:03,672 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) [2021-11-07 09:03:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 354 transitions. [2021-11-07 09:03:03,672 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 354 transitions. Word has length 85 [2021-11-07 09:03:03,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:03,673 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 354 transitions. [2021-11-07 09:03:03,673 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) [2021-11-07 09:03:03,673 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 354 transitions. [2021-11-07 09:03:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 09:03:03,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:03,674 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] [2021-11-07 09:03:03,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-07 09:03:03,674 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)] === [2021-11-07 09:03:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1366130194, now seen corresponding path program 1 times [2021-11-07 09:03:03,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:03,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747710007] [2021-11-07 09:03:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:03,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:04,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:04,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747710007] [2021-11-07 09:03:04,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747710007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:04,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:04,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 09:03:04,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935875534] [2021-11-07 09:03:04,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:04,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 09:03:04,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 09:03:04,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:03:04,081 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) [2021-11-07 09:03:05,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:05,179 INFO L93 Difference]: Finished difference Result 462 states and 520 transitions. [2021-11-07 09:03:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 09:03:05,179 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 [2021-11-07 09:03:05,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:05,180 INFO L225 Difference]: With dead ends: 462 [2021-11-07 09:03:05,180 INFO L226 Difference]: Without dead ends: 445 [2021-11-07 09:03:05,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 461.55ms TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2021-11-07 09:03:05,181 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 233 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 712.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1054 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.42ms SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 758.49ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:05,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1054 Invalid, 384 Unknown, 0 Unchecked, 3.42ms Time], IncrementalHoareTripleChecker [87 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 758.49ms Time] [2021-11-07 09:03:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-11-07 09:03:05,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 329. [2021-11-07 09:03:05,208 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) [2021-11-07 09:03:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2021-11-07 09:03:05,209 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 87 [2021-11-07 09:03:05,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:05,209 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2021-11-07 09:03:05,209 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) [2021-11-07 09:03:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2021-11-07 09:03:05,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 09:03:05,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:05,210 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] [2021-11-07 09:03:05,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-07 09:03:05,211 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)] === [2021-11-07 09:03:05,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash 904162516, now seen corresponding path program 1 times [2021-11-07 09:03:05,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:05,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126682056] [2021-11-07 09:03:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:05,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:10,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:10,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:10,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126682056] [2021-11-07 09:03:10,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126682056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:10,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:10,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-07 09:03:10,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321635606] [2021-11-07 09:03:10,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:10,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 09:03:10,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 09:03:10,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-11-07 09:03:10,435 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) [2021-11-07 09:03:12,478 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 [] [2021-11-07 09:03:14,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:16,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:18,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:21,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:23,173 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:25,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:27,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:29,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:31,693 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 [] [2021-11-07 09:03:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:03:37,781 INFO L93 Difference]: Finished difference Result 617 states and 689 transitions. [2021-11-07 09:03:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-07 09:03:37,782 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 [2021-11-07 09:03:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:03:37,783 INFO L225 Difference]: With dead ends: 617 [2021-11-07 09:03:37,783 INFO L226 Difference]: Without dead ends: 439 [2021-11-07 09:03:37,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 3771.01ms TimeCoverageRelationStatistics Valid=268, Invalid=992, Unknown=0, NotChecked=0, Total=1260 [2021-11-07 09:03:37,784 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 741 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 1157 mSolverCounterSat, 47 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23088.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.60ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1157 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24606.46ms IncrementalHoareTripleChecker+Time [2021-11-07 09:03:37,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 2875 Invalid, 1214 Unknown, 0 Unchecked, 11.60ms Time], IncrementalHoareTripleChecker [47 Valid, 1157 Invalid, 10 Unknown, 0 Unchecked, 24606.46ms Time] [2021-11-07 09:03:37,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-07 09:03:37,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 329. [2021-11-07 09:03:37,800 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) [2021-11-07 09:03:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 364 transitions. [2021-11-07 09:03:37,801 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 364 transitions. Word has length 88 [2021-11-07 09:03:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:03:37,801 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 364 transitions. [2021-11-07 09:03:37,801 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) [2021-11-07 09:03:37,801 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 364 transitions. [2021-11-07 09:03:37,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 09:03:37,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:03:37,801 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] [2021-11-07 09:03:37,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-07 09:03:37,802 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)] === [2021-11-07 09:03:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:03:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash -684185386, now seen corresponding path program 1 times [2021-11-07 09:03:37,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:03:37,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568604754] [2021-11-07 09:03:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:03:37,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:03:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:03:45,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:03:45,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:03:45,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568604754] [2021-11-07 09:03:45,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568604754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:03:45,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:03:45,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-07 09:03:45,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51225646] [2021-11-07 09:03:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:03:45,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-07 09:03:45,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:03:45,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-07 09:03:45,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2021-11-07 09:03:45,719 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) [2021-11-07 09:03:47,759 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 [] [2021-11-07 09:03:49,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:52,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:54,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:56,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:03:58,402 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 [] [2021-11-07 09:04:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:09,580 INFO L93 Difference]: Finished difference Result 510 states and 557 transitions. [2021-11-07 09:04:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 09:04:09,580 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 [2021-11-07 09:04:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:09,582 INFO L225 Difference]: With dead ends: 510 [2021-11-07 09:04:09,582 INFO L226 Difference]: Without dead ends: 444 [2021-11-07 09:04:09,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 6754.59ms TimeCoverageRelationStatistics Valid=465, Invalid=1175, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 09:04:09,583 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 1606 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 143 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18071.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 2418 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.89ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19060.98ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:09,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 2418 Invalid, 1115 Unknown, 0 Unchecked, 11.89ms Time], IncrementalHoareTripleChecker [143 Valid, 966 Invalid, 6 Unknown, 0 Unchecked, 19060.98ms Time] [2021-11-07 09:04:09,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-11-07 09:04:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 349. [2021-11-07 09:04:09,600 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) [2021-11-07 09:04:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 394 transitions. [2021-11-07 09:04:09,600 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 394 transitions. Word has length 88 [2021-11-07 09:04:09,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:09,600 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 394 transitions. [2021-11-07 09:04:09,601 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) [2021-11-07 09:04:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 394 transitions. [2021-11-07 09:04:09,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 09:04:09,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:09,602 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] [2021-11-07 09:04:09,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-07 09:04:09,602 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)] === [2021-11-07 09:04:09,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1450616371, now seen corresponding path program 1 times [2021-11-07 09:04:09,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:09,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835012403] [2021-11-07 09:04:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:09,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:10,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:10,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835012403] [2021-11-07 09:04:10,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835012403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:10,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:10,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-07 09:04:10,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537778713] [2021-11-07 09:04:10,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:10,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 09:04:10,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:10,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 09:04:10,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:04:10,488 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) [2021-11-07 09:04:12,556 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 [] [2021-11-07 09:04:14,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:16,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:17,979 INFO L93 Difference]: Finished difference Result 544 states and 611 transitions. [2021-11-07 09:04:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 09:04:17,980 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 [2021-11-07 09:04:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:17,981 INFO L225 Difference]: With dead ends: 544 [2021-11-07 09:04:17,981 INFO L226 Difference]: Without dead ends: 477 [2021-11-07 09:04:17,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 254.91ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-07 09:04:17,981 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 392 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 22 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6855.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.28ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7315.72ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:17,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [392 Valid, 781 Invalid, 322 Unknown, 0 Unchecked, 3.28ms Time], IncrementalHoareTripleChecker [22 Valid, 297 Invalid, 3 Unknown, 0 Unchecked, 7315.72ms Time] [2021-11-07 09:04:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-11-07 09:04:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 370. [2021-11-07 09:04:17,996 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) [2021-11-07 09:04:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 416 transitions. [2021-11-07 09:04:17,996 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 416 transitions. Word has length 90 [2021-11-07 09:04:17,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:17,997 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 416 transitions. [2021-11-07 09:04:17,997 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) [2021-11-07 09:04:17,997 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 416 transitions. [2021-11-07 09:04:17,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-07 09:04:17,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:17,998 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] [2021-11-07 09:04:17,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-07 09:04:17,998 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)] === [2021-11-07 09:04:17,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:17,999 INFO L85 PathProgramCache]: Analyzing trace with hash -64412977, now seen corresponding path program 1 times [2021-11-07 09:04:17,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:17,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17422185] [2021-11-07 09:04:17,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:17,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:22,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:22,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17422185] [2021-11-07 09:04:22,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17422185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:22,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:22,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-07 09:04:22,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157687256] [2021-11-07 09:04:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:22,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 09:04:22,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:22,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 09:04:22,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2021-11-07 09:04:22,325 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) [2021-11-07 09:04:24,367 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:26,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:28,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:30,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:32,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:35,097 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:37,208 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 [] [2021-11-07 09:04:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:43,104 INFO L93 Difference]: Finished difference Result 617 states and 693 transitions. [2021-11-07 09:04:43,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-07 09:04:43,104 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 [2021-11-07 09:04:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:43,105 INFO L225 Difference]: With dead ends: 617 [2021-11-07 09:04:43,105 INFO L226 Difference]: Without dead ends: 613 [2021-11-07 09:04:43,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 4406.50ms TimeCoverageRelationStatistics Valid=568, Invalid=2972, Unknown=0, NotChecked=0, Total=3540 [2021-11-07 09:04:43,107 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1051 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 198 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16000.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.35ms SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17025.28ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:43,107 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 1509 Invalid, 1082 Unknown, 0 Unchecked, 9.35ms Time], IncrementalHoareTripleChecker [198 Valid, 877 Invalid, 7 Unknown, 0 Unchecked, 17025.28ms Time] [2021-11-07 09:04:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-07 09:04:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 370. [2021-11-07 09:04:43,126 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) [2021-11-07 09:04:43,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 418 transitions. [2021-11-07 09:04:43,127 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 418 transitions. Word has length 90 [2021-11-07 09:04:43,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:43,127 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 418 transitions. [2021-11-07 09:04:43,127 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) [2021-11-07 09:04:43,128 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 418 transitions. [2021-11-07 09:04:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-07 09:04:43,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:43,128 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] [2021-11-07 09:04:43,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-07 09:04:43,129 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)] === [2021-11-07 09:04:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1192526857, now seen corresponding path program 1 times [2021-11-07 09:04:43,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:43,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093695013] [2021-11-07 09:04:43,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:43,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:43,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:43,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093695013] [2021-11-07 09:04:43,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093695013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:43,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:43,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:04:43,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017703295] [2021-11-07 09:04:43,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:43,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:04:43,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:04:43,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:04:43,402 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) [2021-11-07 09:04:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:43,534 INFO L93 Difference]: Finished difference Result 457 states and 509 transitions. [2021-11-07 09:04:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:04:43,534 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 [2021-11-07 09:04:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:43,535 INFO L225 Difference]: With dead ends: 457 [2021-11-07 09:04:43,536 INFO L226 Difference]: Without dead ends: 410 [2021-11-07 09:04:43,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 106.96ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:04:43,536 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 95 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.67ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.80ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:43,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 785 Invalid, 16 Unknown, 0 Unchecked, 0.67ms Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 50.80ms Time] [2021-11-07 09:04:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-11-07 09:04:43,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 367. [2021-11-07 09:04:43,550 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) [2021-11-07 09:04:43,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 411 transitions. [2021-11-07 09:04:43,551 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 411 transitions. Word has length 92 [2021-11-07 09:04:43,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:43,552 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 411 transitions. [2021-11-07 09:04:43,552 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) [2021-11-07 09:04:43,552 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 411 transitions. [2021-11-07 09:04:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-07 09:04:43,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:43,553 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] [2021-11-07 09:04:43,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-07 09:04:43,553 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)] === [2021-11-07 09:04:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1685477897, now seen corresponding path program 1 times [2021-11-07 09:04:43,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:43,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526755437] [2021-11-07 09:04:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:43,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:43,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:43,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:43,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526755437] [2021-11-07 09:04:43,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526755437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:43,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:43,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 09:04:43,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691134864] [2021-11-07 09:04:43,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:43,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 09:04:43,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:43,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 09:04:43,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 09:04:43,911 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) [2021-11-07 09:04:44,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:04:44,218 INFO L93 Difference]: Finished difference Result 396 states and 442 transitions. [2021-11-07 09:04:44,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 09:04:44,218 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 [2021-11-07 09:04:44,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:04:44,219 INFO L225 Difference]: With dead ends: 396 [2021-11-07 09:04:44,219 INFO L226 Difference]: Without dead ends: 394 [2021-11-07 09:04:44,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 197.37ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 09:04:44,220 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 365 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 167.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.22ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 178.57ms IncrementalHoareTripleChecker+Time [2021-11-07 09:04:44,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [365 Valid, 532 Invalid, 68 Unknown, 0 Unchecked, 1.22ms Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 178.57ms Time] [2021-11-07 09:04:44,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-07 09:04:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 365. [2021-11-07 09:04:44,239 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) [2021-11-07 09:04:44,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 407 transitions. [2021-11-07 09:04:44,240 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 407 transitions. Word has length 93 [2021-11-07 09:04:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:04:44,240 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 407 transitions. [2021-11-07 09:04:44,241 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) [2021-11-07 09:04:44,241 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 407 transitions. [2021-11-07 09:04:44,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 09:04:44,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:04:44,242 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] [2021-11-07 09:04:44,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-07 09:04:44,242 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)] === [2021-11-07 09:04:44,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:04:44,242 INFO L85 PathProgramCache]: Analyzing trace with hash -541449895, now seen corresponding path program 1 times [2021-11-07 09:04:44,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:04:44,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226325793] [2021-11-07 09:04:44,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:04:44,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:04:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:04:47,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:04:47,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:04:47,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226325793] [2021-11-07 09:04:47,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226325793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:04:47,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:04:47,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-07 09:04:47,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046476307] [2021-11-07 09:04:47,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:04:47,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-07 09:04:47,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:04:47,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 09:04:47,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-11-07 09:04:47,368 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) [2021-11-07 09:04:49,410 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 [] [2021-11-07 09:04:51,557 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:53,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:55,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:04:57,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:05:00,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:05:00,640 INFO L93 Difference]: Finished difference Result 455 states and 503 transitions. [2021-11-07 09:05:00,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 09:05:00,641 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 [2021-11-07 09:05:00,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:05:00,642 INFO L225 Difference]: With dead ends: 455 [2021-11-07 09:05:00,642 INFO L226 Difference]: Without dead ends: 453 [2021-11-07 09:05:00,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2027.64ms TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-11-07 09:05:00,643 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 999 mSDsluCounter, 957 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 44 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11242.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.98ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11995.06ms IncrementalHoareTripleChecker+Time [2021-11-07 09:05:00,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [999 Valid, 1108 Invalid, 502 Unknown, 0 Unchecked, 5.98ms Time], IncrementalHoareTripleChecker [44 Valid, 453 Invalid, 5 Unknown, 0 Unchecked, 11995.06ms Time] [2021-11-07 09:05:00,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-07 09:05:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 369. [2021-11-07 09:05:00,664 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) [2021-11-07 09:05:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 412 transitions. [2021-11-07 09:05:00,665 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 412 transitions. Word has length 95 [2021-11-07 09:05:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:05:00,665 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 412 transitions. [2021-11-07 09:05:00,665 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) [2021-11-07 09:05:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 412 transitions. [2021-11-07 09:05:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-07 09:05:00,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:05:00,666 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] [2021-11-07 09:05:00,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-07 09:05:00,666 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)] === [2021-11-07 09:05:00,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:05:00,667 INFO L85 PathProgramCache]: Analyzing trace with hash -2059414454, now seen corresponding path program 1 times [2021-11-07 09:05:00,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:05:00,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579543224] [2021-11-07 09:05:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:05:00,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:05:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:05:01,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:05:01,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:05:01,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579543224] [2021-11-07 09:05:01,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579543224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:05:01,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:05:01,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 09:05:01,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021600303] [2021-11-07 09:05:01,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:05:01,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 09:05:01,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:05:01,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 09:05:01,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 09:05:01,012 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) [2021-11-07 09:05:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:05:01,147 INFO L93 Difference]: Finished difference Result 477 states and 525 transitions. [2021-11-07 09:05:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 09:05:01,147 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 [2021-11-07 09:05:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:05:01,148 INFO L225 Difference]: With dead ends: 477 [2021-11-07 09:05:01,148 INFO L226 Difference]: Without dead ends: 394 [2021-11-07 09:05:01,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.20ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 09:05:01,151 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 218 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.68ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.50ms IncrementalHoareTripleChecker+Time [2021-11-07 09:05:01,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 666 Invalid, 25 Unknown, 0 Unchecked, 0.68ms Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 70.50ms Time] [2021-11-07 09:05:01,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-07 09:05:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 356. [2021-11-07 09:05:01,171 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) [2021-11-07 09:05:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 396 transitions. [2021-11-07 09:05:01,172 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 396 transitions. Word has length 95 [2021-11-07 09:05:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:05:01,172 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 396 transitions. [2021-11-07 09:05:01,172 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) [2021-11-07 09:05:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 396 transitions. [2021-11-07 09:05:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 09:05:01,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:05:01,173 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] [2021-11-07 09:05:01,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-07 09:05:01,173 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)] === [2021-11-07 09:05:01,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:05:01,174 INFO L85 PathProgramCache]: Analyzing trace with hash -642167461, now seen corresponding path program 1 times [2021-11-07 09:05:01,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:05:01,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418408324] [2021-11-07 09:05:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:05:01,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:05:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:05:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:05:07,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:05:07,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418408324] [2021-11-07 09:05:07,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418408324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 09:05:07,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 09:05:07,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-07 09:05:07,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043006607] [2021-11-07 09:05:07,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 09:05:07,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 09:05:07,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 09:05:07,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 09:05:07,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-07 09:05:07,600 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) [2021-11-07 09:05:09,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:05:11,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:05:13,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:05:16,082 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 09:05:18,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 09:05:18,430 INFO L93 Difference]: Finished difference Result 437 states and 481 transitions. [2021-11-07 09:05:18,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 09:05:18,430 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 [2021-11-07 09:05:18,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 09:05:18,432 INFO L225 Difference]: With dead ends: 437 [2021-11-07 09:05:18,432 INFO L226 Difference]: Without dead ends: 435 [2021-11-07 09:05:18,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1829.82ms TimeCoverageRelationStatistics Valid=109, Invalid=353, Unknown=0, NotChecked=0, Total=462 [2021-11-07 09:05:18,432 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 680 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9159.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.55ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9821.41ms IncrementalHoareTripleChecker+Time [2021-11-07 09:05:18,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 982 Invalid, 460 Unknown, 0 Unchecked, 5.55ms Time], IncrementalHoareTripleChecker [27 Valid, 429 Invalid, 4 Unknown, 0 Unchecked, 9821.41ms Time] [2021-11-07 09:05:18,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-07 09:05:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 358. [2021-11-07 09:05:18,448 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) [2021-11-07 09:05:18,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 398 transitions. [2021-11-07 09:05:18,448 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 398 transitions. Word has length 97 [2021-11-07 09:05:18,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 09:05:18,448 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 398 transitions. [2021-11-07 09:05:18,449 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) [2021-11-07 09:05:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 398 transitions. [2021-11-07 09:05:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 09:05:18,449 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 09:05:18,449 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] [2021-11-07 09:05:18,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-07 09:05:18,450 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)] === [2021-11-07 09:05:18,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 09:05:18,450 INFO L85 PathProgramCache]: Analyzing trace with hash -965477682, now seen corresponding path program 1 times [2021-11-07 09:05:18,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 09:05:18,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686994528] [2021-11-07 09:05:18,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:05:18,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 09:05:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:05:19,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:05:19,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 09:05:19,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686994528] [2021-11-07 09:05:19,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686994528] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 09:05:19,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130541874] [2021-11-07 09:05:19,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 09:05:19,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 09:05:19,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 09:05:19,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 09:05:19,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 09:05:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 09:05:19,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 3057 conjuncts, 91 conjunts are in the unsatisfiable core [2021-11-07 09:05:19,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 09:05:19,961 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 [2021-11-07 09:05:20,313 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 09:05:20,313 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 [2021-11-07 09:05:20,406 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 [2021-11-07 09:05:20,422 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 [2021-11-07 09:05:21,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:21,264 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 [2021-11-07 09:05:21,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:21,284 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 [2021-11-07 09:05:21,990 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 [2021-11-07 09:05:22,002 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 [2021-11-07 09:05:22,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 09:05:22,698 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 [2021-11-07 09:05:23,275 INFO L354 Elim1Store]: treesize reduction 282, result has 22.3 percent of original size [2021-11-07 09:05:23,276 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 [2021-11-07 09:05:24,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:24,536 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 [2021-11-07 09:05:24,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:24,753 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 [2021-11-07 09:05:24,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 09:05:25,009 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-07 09:05:25,010 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 [2021-11-07 09:05:26,069 INFO L354 Elim1Store]: treesize reduction 80, result has 14.9 percent of original size [2021-11-07 09:05:26,070 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 [2021-11-07 09:05:26,504 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-07 09:05:26,504 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 [2021-11-07 09:05:26,592 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-07 09:05:26,593 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 [2021-11-07 09:05:42,378 INFO L354 Elim1Store]: treesize reduction 1267, result has 13.0 percent of original size [2021-11-07 09:05:42,378 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 [2021-11-07 09:06:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 09:06:07,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 09:06:10,001 WARN L838 $PredicateComparison]: unable to prove that (and (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) (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 ((.cse0 (select (store |c_#memory_int| c_ULTIMATE.start_memcpy_impl_~dst.base (let ((.cse1 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select |c_#memory_int| c_ULTIMATE.start_memcpy_impl_~dst.base) (+ (- 18446744073709551616) .cse1 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select |c_#memory_int| ULTIMATE.start_memcpy_impl_~src.base) (+ (- 18446744073709551616) .cse1 ULTIMATE.start_memcpy_impl_~src.offset))))) c_ULTIMATE.start_aws_byte_buf_write_~buf.base))) (store .cse0 c_ULTIMATE.start_aws_byte_buf_write_~buf.offset (+ (select .cse0 c_ULTIMATE.start_aws_byte_buf_write_~buf.offset) ULTIMATE.start_aws_byte_buf_write_~len))) (+ c_ULTIMATE.start_aws_byte_buf_write_~buf.offset 16)) 18446744073709551616) 0)))) (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) (ULTIMATE.start_aws_byte_buf_write_~len Int)) (or (< 9223372036854775807 aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58) (not (= (mod (select (let ((.cse2 (select (store |c_#memory_int| c_ULTIMATE.start_memcpy_impl_~dst.base (let ((.cse3 (mod aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 18446744073709551616))) (store (select |c_#memory_int| c_ULTIMATE.start_memcpy_impl_~dst.base) (+ .cse3 ULTIMATE.start_memcpy_impl_~dst.offset) (select (select |c_#memory_int| ULTIMATE.start_memcpy_impl_~src.base) (+ .cse3 ULTIMATE.start_memcpy_impl_~src.offset))))) c_ULTIMATE.start_aws_byte_buf_write_~buf.base))) (store .cse2 c_ULTIMATE.start_aws_byte_buf_write_~buf.offset (+ (select .cse2 c_ULTIMATE.start_aws_byte_buf_write_~buf.offset) ULTIMATE.start_aws_byte_buf_write_~len))) (+ c_ULTIMATE.start_aws_byte_buf_write_~buf.offset 16)) 18446744073709551616) 0)) (< aux_mod_ULTIMATE.start_memcpy_impl_~i~6_58 0)))) is different from false [2021-11-07 09:06:24,987 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 09:06:33,046 WARN L227 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-07 09:06:49,343 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 [2021-11-07 09:07:24,140 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 [2021-11-07 09:08:19,234 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