./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_cursor_compare_lookup_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 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 10:32:17,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 10:32:17,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 10:32:17,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 10:32:17,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 10:32:17,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 10:32:17,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 10:32:17,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 10:32:17,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 10:32:17,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 10:32:17,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 10:32:17,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 10:32:17,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 10:32:17,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 10:32:17,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 10:32:17,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 10:32:17,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 10:32:17,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 10:32:17,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 10:32:17,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 10:32:17,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 10:32:17,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 10:32:17,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 10:32:17,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 10:32:17,806 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 10:32:17,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 10:32:17,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 10:32:17,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 10:32:17,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 10:32:17,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 10:32:17,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 10:32:17,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 10:32:17,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 10:32:17,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 10:32:17,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 10:32:17,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 10:32:17,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 10:32:17,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 10:32:17,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 10:32:17,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 10:32:17,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 10:32:17,820 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 10:32:17,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 10:32:17,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 10:32:17,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 10:32:17,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 10:32:17,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 10:32:17,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 10:32:17,860 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 10:32:17,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 10:32:17,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 10:32:17,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 10:32:17,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 10:32:17,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 10:32:17,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 10:32:17,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 10:32:17,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 10:32:17,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 10:32:17,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 10:32:17,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 10:32:17,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 10:32:17,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 10:32:17,863 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 10:32:17,864 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 10:32:17,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 10:32:17,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 10:32:17,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0658a835d559c56129f1a85a00e9d3bbd205d66ef64b5c7d14ae72b3d1b496e0 [2021-11-06 10:32:18,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 10:32:18,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 10:32:18,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 10:32:18,103 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 10:32:18,104 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 10:32:18,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-06 10:32:18,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35b8d042/b3797175a38a4ba7ac97d2763b1caab3/FLAGcfbb544c9 [2021-11-06 10:32:18,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 10:32:18,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_compare_lookup_harness.i [2021-11-06 10:32:18,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35b8d042/b3797175a38a4ba7ac97d2763b1caab3/FLAGcfbb544c9 [2021-11-06 10:32:18,910 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f35b8d042/b3797175a38a4ba7ac97d2763b1caab3 [2021-11-06 10:32:18,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 10:32:18,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 10:32:18,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 10:32:18,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 10:32:18,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 10:32:18,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:18" (1/1) ... [2021-11-06 10:32:18,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7acf32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:18, skipping insertion in model container [2021-11-06 10:32:18,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:18" (1/1) ... [2021-11-06 10:32:18,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 10:32:19,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 10:32:19,184 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_cursor_compare_lookup_harness.i[4504,4517] [2021-11-06 10:32:19,189 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_cursor_compare_lookup_harness.i[4564,4577] [2021-11-06 10:32:19,206 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 10:32:19,216 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 10:32:19,873 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,874 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,875 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,876 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,894 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,896 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,898 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:19,899 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 10:32:20,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 10:32:20,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 10:32:20,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 10:32:20,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 10:32:20,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 10:32:20,135 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 10:32:20,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 10:32:20,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 10:32:20,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 10:32:20,213 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 10:32:20,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,293 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 10:32:20,393 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 10:32:20,410 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_cursor_compare_lookup_harness.i[4504,4517] [2021-11-06 10:32:20,412 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_cursor_compare_lookup_harness.i[4564,4577] [2021-11-06 10:32:20,415 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 10:32:20,416 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 10:32:20,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,445 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,446 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,447 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,457 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,458 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 10:32:20,487 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 10:32:20,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 10:32:20,488 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 10:32:20,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 10:32:20,489 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 10:32:20,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 10:32:20,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 10:32:20,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 10:32:20,490 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 10:32:20,507 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 10:32:20,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 10:32:20,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 10:32:20,708 INFO L208 MainTranslator]: Completed translation [2021-11-06 10:32:20,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20 WrapperNode [2021-11-06 10:32:20,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 10:32:20,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 10:32:20,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 10:32:20,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 10:32:20,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 10:32:20,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 10:32:20,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 10:32:20,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 10:32:20,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 10:32:20,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 10:32:20,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 10:32:20,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 10:32:20,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (1/1) ... [2021-11-06 10:32:20,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 10:32:20,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 10:32:20,980 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) [2021-11-06 10:32:20,986 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 [2021-11-06 10:32:21,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 10:32:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 10:32:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 10:32:21,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 10:32:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 10:32:21,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 10:32:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 10:32:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 10:32:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 10:32:21,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 10:32:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 10:32:29,211 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 10:32:29,216 INFO L299 CfgBuilder]: Removed 130 assume(true) statements. [2021-11-06 10:32:29,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:29 BoogieIcfgContainer [2021-11-06 10:32:29,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 10:32:29,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 10:32:29,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 10:32:29,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 10:32:29,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:18" (1/3) ... [2021-11-06 10:32:29,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243f965c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:29, skipping insertion in model container [2021-11-06 10:32:29,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:20" (2/3) ... [2021-11-06 10:32:29,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243f965c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:29, skipping insertion in model container [2021-11-06 10:32:29,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:29" (3/3) ... [2021-11-06 10:32:29,226 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_compare_lookup_harness.i [2021-11-06 10:32:29,230 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 10:32:29,230 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-06 10:32:29,262 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 10:32:29,275 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 [2021-11-06 10:32:29,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-06 10:32:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 10:32:29,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:29,309 INFO L513 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] [2021-11-06 10:32:29,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash -424146730, now seen corresponding path program 1 times [2021-11-06 10:32:29,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:29,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111191559] [2021-11-06 10:32:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:29,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:29,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:29,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111191559] [2021-11-06 10:32:29,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111191559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:29,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:29,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 10:32:29,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657503653] [2021-11-06 10:32:29,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 10:32:29,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:29,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 10:32:29,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 10:32:29,846 INFO L87 Difference]: Start difference. First operand has 311 states, 296 states have (on average 1.4864864864864864) internal successors, (440), 310 states have internal predecessors, (440), 0 states have call successors, (0), 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) [2021-11-06 10:32:29,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:29,874 INFO L93 Difference]: Finished difference Result 618 states and 875 transitions. [2021-11-06 10:32:29,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 10:32:29,875 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 [2021-11-06 10:32:29,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:29,883 INFO L225 Difference]: With dead ends: 618 [2021-11-06 10:32:29,883 INFO L226 Difference]: Without dead ends: 304 [2021-11-06 10:32:29,885 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 10:32:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-06 10:32:29,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-06 10:32:29,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3827586206896552) internal successors, (401), 303 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:29,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 401 transitions. [2021-11-06 10:32:29,916 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 401 transitions. Word has length 39 [2021-11-06 10:32:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:29,917 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 401 transitions. [2021-11-06 10:32:29,917 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) [2021-11-06 10:32:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 401 transitions. [2021-11-06 10:32:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 10:32:29,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:29,918 INFO L513 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] [2021-11-06 10:32:29,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 10:32:29,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:29,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1377522796, now seen corresponding path program 1 times [2021-11-06 10:32:29,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:29,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547416194] [2021-11-06 10:32:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:29,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:30,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:30,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547416194] [2021-11-06 10:32:30,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547416194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:30,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:30,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:32:30,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998070081] [2021-11-06 10:32:30,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:32:30,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:30,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:32:30,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:32:30,144 INFO L87 Difference]: Start difference. First operand 304 states and 401 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) [2021-11-06 10:32:30,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:30,492 INFO L93 Difference]: Finished difference Result 587 states and 775 transitions. [2021-11-06 10:32:30,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:32:30,493 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 [2021-11-06 10:32:30,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:30,495 INFO L225 Difference]: With dead ends: 587 [2021-11-06 10:32:30,495 INFO L226 Difference]: Without dead ends: 304 [2021-11-06 10:32:30,496 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:32:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-06 10:32:30,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-06 10:32:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3689655172413793) internal successors, (397), 303 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 397 transitions. [2021-11-06 10:32:30,506 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 397 transitions. Word has length 39 [2021-11-06 10:32:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:30,507 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 397 transitions. [2021-11-06 10:32:30,507 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) [2021-11-06 10:32:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 397 transitions. [2021-11-06 10:32:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 10:32:30,508 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:30,508 INFO L513 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] [2021-11-06 10:32:30,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 10:32:30,509 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash 914596510, now seen corresponding path program 1 times [2021-11-06 10:32:30,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:30,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150091389] [2021-11-06 10:32:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:30,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:30,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:30,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150091389] [2021-11-06 10:32:30,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150091389] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:30,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:30,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 10:32:30,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783905628] [2021-11-06 10:32:30,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 10:32:30,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:30,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 10:32:30,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:32:30,800 INFO L87 Difference]: Start difference. First operand 304 states and 397 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:31,209 INFO L93 Difference]: Finished difference Result 519 states and 682 transitions. [2021-11-06 10:32:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 10:32:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-11-06 10:32:31,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:31,221 INFO L225 Difference]: With dead ends: 519 [2021-11-06 10:32:31,221 INFO L226 Difference]: Without dead ends: 304 [2021-11-06 10:32:31,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:32:31,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-06 10:32:31,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-06 10:32:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3551724137931034) internal successors, (393), 303 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 393 transitions. [2021-11-06 10:32:31,242 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 393 transitions. Word has length 43 [2021-11-06 10:32:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:31,242 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 393 transitions. [2021-11-06 10:32:31,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 393 transitions. [2021-11-06 10:32:31,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-06 10:32:31,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:31,244 INFO L513 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] [2021-11-06 10:32:31,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 10:32:31,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:31,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1062682425, now seen corresponding path program 1 times [2021-11-06 10:32:31,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:31,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967859545] [2021-11-06 10:32:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:31,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:31,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:31,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967859545] [2021-11-06 10:32:31,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967859545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:31,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:31,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 10:32:31,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326858536] [2021-11-06 10:32:31,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 10:32:31,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:31,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 10:32:31,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:32:31,459 INFO L87 Difference]: Start difference. First operand 304 states and 393 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:31,874 INFO L93 Difference]: Finished difference Result 562 states and 728 transitions. [2021-11-06 10:32:31,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 10:32:31,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 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 45 [2021-11-06 10:32:31,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:31,876 INFO L225 Difference]: With dead ends: 562 [2021-11-06 10:32:31,876 INFO L226 Difference]: Without dead ends: 304 [2021-11-06 10:32:31,877 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:32:31,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-06 10:32:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2021-11-06 10:32:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 290 states have (on average 1.3379310344827586) internal successors, (388), 303 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 388 transitions. [2021-11-06 10:32:31,890 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 388 transitions. Word has length 45 [2021-11-06 10:32:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:31,890 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 388 transitions. [2021-11-06 10:32:31,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:31,891 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 388 transitions. [2021-11-06 10:32:31,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-06 10:32:31,896 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:31,896 INFO L513 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] [2021-11-06 10:32:31,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 10:32:31,897 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:31,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:31,898 INFO L85 PathProgramCache]: Analyzing trace with hash -762725292, now seen corresponding path program 1 times [2021-11-06 10:32:31,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:31,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72705679] [2021-11-06 10:32:31,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:31,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:32,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:32,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:32,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72705679] [2021-11-06 10:32:32,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72705679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:32,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:32,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 10:32:32,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802947556] [2021-11-06 10:32:32,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 10:32:32,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:32,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 10:32:32,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:32:32,408 INFO L87 Difference]: Start difference. First operand 304 states and 388 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:33,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:33,912 INFO L93 Difference]: Finished difference Result 645 states and 795 transitions. [2021-11-06 10:32:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 10:32:33,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-06 10:32:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:33,914 INFO L225 Difference]: With dead ends: 645 [2021-11-06 10:32:33,914 INFO L226 Difference]: Without dead ends: 625 [2021-11-06 10:32:33,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:32:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2021-11-06 10:32:33,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 344. [2021-11-06 10:32:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 330 states have (on average 1.2969696969696969) internal successors, (428), 343 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:33,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 428 transitions. [2021-11-06 10:32:33,923 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 428 transitions. Word has length 47 [2021-11-06 10:32:33,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:33,923 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 428 transitions. [2021-11-06 10:32:33,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 428 transitions. [2021-11-06 10:32:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-06 10:32:33,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:33,924 INFO L513 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] [2021-11-06 10:32:33,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 10:32:33,925 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:33,925 INFO L85 PathProgramCache]: Analyzing trace with hash -707283252, now seen corresponding path program 1 times [2021-11-06 10:32:33,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:33,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801279806] [2021-11-06 10:32:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:33,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:34,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:34,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801279806] [2021-11-06 10:32:34,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801279806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:34,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:34,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 10:32:34,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907957186] [2021-11-06 10:32:34,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 10:32:34,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:34,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 10:32:34,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-06 10:32:34,573 INFO L87 Difference]: Start difference. First operand 344 states and 428 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2021-11-06 10:32:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:44,182 INFO L93 Difference]: Finished difference Result 1645 states and 2043 transitions. [2021-11-06 10:32:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-06 10:32:44,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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 [2021-11-06 10:32:44,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:44,186 INFO L225 Difference]: With dead ends: 1645 [2021-11-06 10:32:44,186 INFO L226 Difference]: Without dead ends: 1358 [2021-11-06 10:32:44,187 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2021-11-06 10:32:44,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2021-11-06 10:32:44,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 645. [2021-11-06 10:32:44,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 631 states have (on average 1.294770206022187) internal successors, (817), 644 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:44,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 817 transitions. [2021-11-06 10:32:44,204 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 817 transitions. Word has length 51 [2021-11-06 10:32:44,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:44,205 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 817 transitions. [2021-11-06 10:32:44,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 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) [2021-11-06 10:32:44,205 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 817 transitions. [2021-11-06 10:32:44,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 10:32:44,206 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:44,206 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:32:44,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 10:32:44,206 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:44,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:44,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1793415963, now seen corresponding path program 1 times [2021-11-06 10:32:44,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:44,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449807977] [2021-11-06 10:32:44,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:44,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:44,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:44,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:44,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449807977] [2021-11-06 10:32:44,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449807977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:44,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:44,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 10:32:44,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894070466] [2021-11-06 10:32:44,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 10:32:44,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:44,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 10:32:44,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:32:44,747 INFO L87 Difference]: Start difference. First operand 645 states and 817 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:55,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:55,589 INFO L93 Difference]: Finished difference Result 1336 states and 1683 transitions. [2021-11-06 10:32:55,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-06 10:32:55,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-06 10:32:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:55,593 INFO L225 Difference]: With dead ends: 1336 [2021-11-06 10:32:55,593 INFO L226 Difference]: Without dead ends: 906 [2021-11-06 10:32:55,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:32:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2021-11-06 10:32:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 711. [2021-11-06 10:32:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 697 states have (on average 1.284074605451937) internal successors, (895), 710 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 895 transitions. [2021-11-06 10:32:55,613 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 895 transitions. Word has length 52 [2021-11-06 10:32:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:55,613 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 895 transitions. [2021-11-06 10:32:55,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:55,613 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 895 transitions. [2021-11-06 10:32:55,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-06 10:32:55,614 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:55,614 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:32:55,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 10:32:55,615 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:55,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:55,615 INFO L85 PathProgramCache]: Analyzing trace with hash 23921373, now seen corresponding path program 1 times [2021-11-06 10:32:55,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:55,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096305957] [2021-11-06 10:32:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:55,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:56,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:56,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096305957] [2021-11-06 10:32:56,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096305957] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:56,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:56,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 10:32:56,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911452270] [2021-11-06 10:32:56,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 10:32:56,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:56,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 10:32:56,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 10:32:56,063 INFO L87 Difference]: Start difference. First operand 711 states and 895 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:57,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:32:57,976 INFO L93 Difference]: Finished difference Result 1631 states and 2021 transitions. [2021-11-06 10:32:57,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 10:32:57,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-06 10:32:57,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:32:57,980 INFO L225 Difference]: With dead ends: 1631 [2021-11-06 10:32:57,980 INFO L226 Difference]: Without dead ends: 911 [2021-11-06 10:32:57,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:32:57,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2021-11-06 10:32:57,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 711. [2021-11-06 10:32:57,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 697 states have (on average 1.2582496413199427) internal successors, (877), 710 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:57,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 877 transitions. [2021-11-06 10:32:57,996 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 877 transitions. Word has length 56 [2021-11-06 10:32:57,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:32:57,996 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 877 transitions. [2021-11-06 10:32:57,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:32:57,997 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 877 transitions. [2021-11-06 10:32:57,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 10:32:57,997 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:32:57,998 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:32:57,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 10:32:57,998 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:32:57,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:32:57,998 INFO L85 PathProgramCache]: Analyzing trace with hash -237346088, now seen corresponding path program 1 times [2021-11-06 10:32:57,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:32:57,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148184228] [2021-11-06 10:32:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:32:57,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:32:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:32:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:32:58,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:32:58,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148184228] [2021-11-06 10:32:58,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148184228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:32:58,478 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:32:58,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 10:32:58,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012355464] [2021-11-06 10:32:58,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 10:32:58,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:32:58,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 10:32:58,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:32:58,479 INFO L87 Difference]: Start difference. First operand 711 states and 877 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:33:01,951 INFO L93 Difference]: Finished difference Result 1555 states and 1908 transitions. [2021-11-06 10:33:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 10:33:01,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-06 10:33:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:33:01,954 INFO L225 Difference]: With dead ends: 1555 [2021-11-06 10:33:01,954 INFO L226 Difference]: Without dead ends: 891 [2021-11-06 10:33:01,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:33:01,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-11-06 10:33:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 711. [2021-11-06 10:33:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 697 states have (on average 1.2109038737446198) internal successors, (844), 710 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:01,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 844 transitions. [2021-11-06 10:33:01,971 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 844 transitions. Word has length 58 [2021-11-06 10:33:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:33:01,971 INFO L470 AbstractCegarLoop]: Abstraction has 711 states and 844 transitions. [2021-11-06 10:33:01,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 844 transitions. [2021-11-06 10:33:01,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 10:33:01,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:33:01,973 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:33:01,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 10:33:01,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:33:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:33:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -214713834, now seen corresponding path program 1 times [2021-11-06 10:33:01,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:33:01,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469072169] [2021-11-06 10:33:01,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:33:01,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:33:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:33:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:33:03,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:33:03,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469072169] [2021-11-06 10:33:03,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469072169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:33:03,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:33:03,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-06 10:33:03,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711956076] [2021-11-06 10:33:03,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-06 10:33:03,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:33:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-06 10:33:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-06 10:33:03,090 INFO L87 Difference]: Start difference. First operand 711 states and 844 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:15,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:33:15,146 INFO L93 Difference]: Finished difference Result 2035 states and 2403 transitions. [2021-11-06 10:33:15,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-06 10:33:15,147 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-06 10:33:15,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:33:15,151 INFO L225 Difference]: With dead ends: 2035 [2021-11-06 10:33:15,151 INFO L226 Difference]: Without dead ends: 1438 [2021-11-06 10:33:15,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=324, Invalid=866, Unknown=0, NotChecked=0, Total=1190 [2021-11-06 10:33:15,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2021-11-06 10:33:15,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 733. [2021-11-06 10:33:15,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 719 states have (on average 1.211404728789986) internal successors, (871), 732 states have internal predecessors, (871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 871 transitions. [2021-11-06 10:33:15,174 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 871 transitions. Word has length 58 [2021-11-06 10:33:15,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:33:15,174 INFO L470 AbstractCegarLoop]: Abstraction has 733 states and 871 transitions. [2021-11-06 10:33:15,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:15,175 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 871 transitions. [2021-11-06 10:33:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 10:33:15,176 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:33:15,176 INFO L513 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] [2021-11-06 10:33:15,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 10:33:15,176 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:33:15,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:33:15,177 INFO L85 PathProgramCache]: Analyzing trace with hash -373781338, now seen corresponding path program 1 times [2021-11-06 10:33:15,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:33:15,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859642770] [2021-11-06 10:33:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:33:15,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:33:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:33:16,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:33:16,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:33:16,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859642770] [2021-11-06 10:33:16,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859642770] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:33:16,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:33:16,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 10:33:16,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015922318] [2021-11-06 10:33:16,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 10:33:16,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:33:16,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 10:33:16,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:33:16,005 INFO L87 Difference]: Start difference. First operand 733 states and 871 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:33:28,613 INFO L93 Difference]: Finished difference Result 1035 states and 1190 transitions. [2021-11-06 10:33:28,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-06 10:33:28,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2021-11-06 10:33:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:33:28,618 INFO L225 Difference]: With dead ends: 1035 [2021-11-06 10:33:28,618 INFO L226 Difference]: Without dead ends: 836 [2021-11-06 10:33:28,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2021-11-06 10:33:28,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2021-11-06 10:33:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 691. [2021-11-06 10:33:28,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 677 states have (on average 1.2008862629246677) internal successors, (813), 690 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 813 transitions. [2021-11-06 10:33:28,637 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 813 transitions. Word has length 59 [2021-11-06 10:33:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:33:28,638 INFO L470 AbstractCegarLoop]: Abstraction has 691 states and 813 transitions. [2021-11-06 10:33:28,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 813 transitions. [2021-11-06 10:33:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 10:33:28,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:33:28,639 INFO L513 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] [2021-11-06 10:33:28,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 10:33:28,639 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:33:28,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:33:28,639 INFO L85 PathProgramCache]: Analyzing trace with hash 290863203, now seen corresponding path program 1 times [2021-11-06 10:33:28,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:33:28,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120855902] [2021-11-06 10:33:28,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:33:28,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:33:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:33:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:33:28,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:33:28,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120855902] [2021-11-06 10:33:28,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120855902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:33:28,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:33:28,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:33:28,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685395232] [2021-11-06 10:33:28,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:33:28,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:33:28,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:33:28,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:33:28,818 INFO L87 Difference]: Start difference. First operand 691 states and 813 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:33:28,923 INFO L93 Difference]: Finished difference Result 1141 states and 1340 transitions. [2021-11-06 10:33:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:33:28,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-06 10:33:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:33:28,925 INFO L225 Difference]: With dead ends: 1141 [2021-11-06 10:33:28,925 INFO L226 Difference]: Without dead ends: 773 [2021-11-06 10:33:28,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:33:28,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2021-11-06 10:33:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 697. [2021-11-06 10:33:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 683 states have (on average 1.199121522693997) internal successors, (819), 696 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 819 transitions. [2021-11-06 10:33:28,944 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 819 transitions. Word has length 60 [2021-11-06 10:33:28,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:33:28,944 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 819 transitions. [2021-11-06 10:33:28,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:28,945 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 819 transitions. [2021-11-06 10:33:28,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-06 10:33:28,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:33:28,946 INFO L513 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] [2021-11-06 10:33:28,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 10:33:28,946 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:33:28,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:33:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 482144184, now seen corresponding path program 1 times [2021-11-06 10:33:28,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:33:28,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168821241] [2021-11-06 10:33:28,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:33:28,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:33:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:33:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:33:31,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:33:31,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168821241] [2021-11-06 10:33:31,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168821241] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:33:31,449 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:33:31,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:33:31,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86298722] [2021-11-06 10:33:31,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:33:31,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:33:31,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:33:31,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:33:31,450 INFO L87 Difference]: Start difference. First operand 697 states and 819 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:33:43,098 INFO L93 Difference]: Finished difference Result 810 states and 931 transitions. [2021-11-06 10:33:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-06 10:33:43,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-06 10:33:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:33:43,100 INFO L225 Difference]: With dead ends: 810 [2021-11-06 10:33:43,101 INFO L226 Difference]: Without dead ends: 808 [2021-11-06 10:33:43,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2021-11-06 10:33:43,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-11-06 10:33:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 697. [2021-11-06 10:33:43,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 683 states have (on average 1.197657393850659) internal successors, (818), 696 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 818 transitions. [2021-11-06 10:33:43,118 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 818 transitions. Word has length 61 [2021-11-06 10:33:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:33:43,119 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 818 transitions. [2021-11-06 10:33:43,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:33:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 818 transitions. [2021-11-06 10:33:43,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-06 10:33:43,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:33:43,120 INFO L513 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] [2021-11-06 10:33:43,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 10:33:43,120 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:33:43,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:33:43,121 INFO L85 PathProgramCache]: Analyzing trace with hash 926243498, now seen corresponding path program 1 times [2021-11-06 10:33:43,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:33:43,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014595751] [2021-11-06 10:33:43,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:33:43,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:33:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:33:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:33:43,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:33:43,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014595751] [2021-11-06 10:33:43,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014595751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:33:43,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:33:43,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 10:33:43,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077673026] [2021-11-06 10:33:43,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 10:33:43,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:33:43,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 10:33:43,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:33:43,782 INFO L87 Difference]: Start difference. First operand 697 states and 818 transitions. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 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) [2021-11-06 10:34:01,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:34:01,672 INFO L93 Difference]: Finished difference Result 1647 states and 1940 transitions. [2021-11-06 10:34:01,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-06 10:34:01,672 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 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 [2021-11-06 10:34:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:34:01,675 INFO L225 Difference]: With dead ends: 1647 [2021-11-06 10:34:01,675 INFO L226 Difference]: Without dead ends: 1147 [2021-11-06 10:34:01,676 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=314, Invalid=1168, Unknown=0, NotChecked=0, Total=1482 [2021-11-06 10:34:01,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2021-11-06 10:34:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 992. [2021-11-06 10:34:01,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 992 states, 978 states have (on average 1.2004089979550103) internal successors, (1174), 991 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1174 transitions. [2021-11-06 10:34:01,704 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1174 transitions. Word has length 63 [2021-11-06 10:34:01,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:34:01,704 INFO L470 AbstractCegarLoop]: Abstraction has 992 states and 1174 transitions. [2021-11-06 10:34:01,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 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) [2021-11-06 10:34:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1174 transitions. [2021-11-06 10:34:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 10:34:01,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:34:01,705 INFO L513 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] [2021-11-06 10:34:01,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 10:34:01,706 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:34:01,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:34:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash -2073749523, now seen corresponding path program 1 times [2021-11-06 10:34:01,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:34:01,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785271976] [2021-11-06 10:34:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:34:01,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:34:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:34:02,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:34:02,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:34:02,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785271976] [2021-11-06 10:34:02,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785271976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:34:02,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:34:02,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:34:02,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517520479] [2021-11-06 10:34:02,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:34:02,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:34:02,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:34:02,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:34:02,942 INFO L87 Difference]: Start difference. First operand 992 states and 1174 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:34:26,930 INFO L93 Difference]: Finished difference Result 2711 states and 3187 transitions. [2021-11-06 10:34:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-06 10:34:26,930 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 10:34:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:34:26,935 INFO L225 Difference]: With dead ends: 2711 [2021-11-06 10:34:26,935 INFO L226 Difference]: Without dead ends: 2311 [2021-11-06 10:34:26,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2021-11-06 10:34:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2021-11-06 10:34:26,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1112. [2021-11-06 10:34:26,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1098 states have (on average 1.197632058287796) internal successors, (1315), 1111 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:26,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1315 transitions. [2021-11-06 10:34:26,970 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1315 transitions. Word has length 66 [2021-11-06 10:34:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:34:26,970 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1315 transitions. [2021-11-06 10:34:26,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:26,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1315 transitions. [2021-11-06 10:34:26,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 10:34:26,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:34:26,971 INFO L513 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] [2021-11-06 10:34:26,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 10:34:26,972 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:34:26,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:34:26,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1500491847, now seen corresponding path program 1 times [2021-11-06 10:34:26,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:34:26,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793776263] [2021-11-06 10:34:26,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:34:26,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:34:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:34:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:34:27,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:34:27,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793776263] [2021-11-06 10:34:27,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793776263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:34:27,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:34:27,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 10:34:27,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759523065] [2021-11-06 10:34:27,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 10:34:27,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:34:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 10:34:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:34:27,471 INFO L87 Difference]: Start difference. First operand 1112 states and 1315 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:33,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:34:33,107 INFO L93 Difference]: Finished difference Result 1896 states and 2252 transitions. [2021-11-06 10:34:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 10:34:33,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 10:34:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:34:33,110 INFO L225 Difference]: With dead ends: 1896 [2021-11-06 10:34:33,110 INFO L226 Difference]: Without dead ends: 1496 [2021-11-06 10:34:33,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:34:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2021-11-06 10:34:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1112. [2021-11-06 10:34:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 1098 states have (on average 1.197632058287796) internal successors, (1315), 1111 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:33,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1315 transitions. [2021-11-06 10:34:33,142 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1315 transitions. Word has length 66 [2021-11-06 10:34:33,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:34:33,162 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 1315 transitions. [2021-11-06 10:34:33,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1315 transitions. [2021-11-06 10:34:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-06 10:34:33,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:34:33,163 INFO L513 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] [2021-11-06 10:34:33,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-06 10:34:33,163 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:34:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:34:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1204197404, now seen corresponding path program 1 times [2021-11-06 10:34:33,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:34:33,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107838823] [2021-11-06 10:34:33,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:34:33,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:34:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:34:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:34:34,758 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:34:34,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107838823] [2021-11-06 10:34:34,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107838823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:34:34,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:34:34,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:34:34,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430351263] [2021-11-06 10:34:34,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:34:34,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:34:34,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:34:34,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:34:34,760 INFO L87 Difference]: Start difference. First operand 1112 states and 1315 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-11-06 10:34:55,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:34:55,143 INFO L93 Difference]: Finished difference Result 2684 states and 3120 transitions. [2021-11-06 10:34:55,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-06 10:34:55,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 [2021-11-06 10:34:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:34:55,149 INFO L225 Difference]: With dead ends: 2684 [2021-11-06 10:34:55,149 INFO L226 Difference]: Without dead ends: 2327 [2021-11-06 10:34:55,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=184, Invalid=466, Unknown=0, NotChecked=0, Total=650 [2021-11-06 10:34:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2021-11-06 10:34:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1077. [2021-11-06 10:34:55,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1077 states, 1063 states have (on average 1.1975540921919097) internal successors, (1273), 1076 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:34:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1077 states to 1077 states and 1273 transitions. [2021-11-06 10:34:55,186 INFO L78 Accepts]: Start accepts. Automaton has 1077 states and 1273 transitions. Word has length 67 [2021-11-06 10:34:55,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:34:55,186 INFO L470 AbstractCegarLoop]: Abstraction has 1077 states and 1273 transitions. [2021-11-06 10:34:55,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-11-06 10:34:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1077 states and 1273 transitions. [2021-11-06 10:34:55,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-06 10:34:55,187 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:34:55,187 INFO L513 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] [2021-11-06 10:34:55,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-06 10:34:55,188 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:34:55,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:34:55,188 INFO L85 PathProgramCache]: Analyzing trace with hash -613078632, now seen corresponding path program 1 times [2021-11-06 10:34:55,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:34:55,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433869859] [2021-11-06 10:34:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:34:55,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:34:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:34:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:34:56,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:34:56,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433869859] [2021-11-06 10:34:56,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433869859] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:34:56,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:34:56,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:34:56,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042882549] [2021-11-06 10:34:56,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:34:56,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:34:56,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:34:56,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:34:56,503 INFO L87 Difference]: Start difference. First operand 1077 states and 1273 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-11-06 10:35:10,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:35:10,202 INFO L93 Difference]: Finished difference Result 3572 states and 4236 transitions. [2021-11-06 10:35:10,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-06 10:35:10,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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 [2021-11-06 10:35:10,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:35:10,208 INFO L225 Difference]: With dead ends: 3572 [2021-11-06 10:35:10,209 INFO L226 Difference]: Without dead ends: 3040 [2021-11-06 10:35:10,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=137, Invalid=283, Unknown=0, NotChecked=0, Total=420 [2021-11-06 10:35:10,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2021-11-06 10:35:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 1093. [2021-11-06 10:35:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 1079 states have (on average 1.196478220574606) internal successors, (1291), 1092 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1291 transitions. [2021-11-06 10:35:10,248 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1291 transitions. Word has length 67 [2021-11-06 10:35:10,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:35:10,248 INFO L470 AbstractCegarLoop]: Abstraction has 1093 states and 1291 transitions. [2021-11-06 10:35:10,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 12 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) [2021-11-06 10:35:10,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1291 transitions. [2021-11-06 10:35:10,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-06 10:35:10,249 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:35:10,249 INFO L513 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] [2021-11-06 10:35:10,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-06 10:35:10,249 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:35:10,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:35:10,249 INFO L85 PathProgramCache]: Analyzing trace with hash -572403882, now seen corresponding path program 1 times [2021-11-06 10:35:10,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:35:10,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651432057] [2021-11-06 10:35:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:35:10,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:35:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:35:10,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:35:10,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:35:10,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651432057] [2021-11-06 10:35:10,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651432057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:35:10,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:35:10,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:35:10,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586877446] [2021-11-06 10:35:10,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:35:10,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:35:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:35:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:35:10,389 INFO L87 Difference]: Start difference. First operand 1093 states and 1291 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2021-11-06 10:35:11,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:35:11,270 INFO L93 Difference]: Finished difference Result 2299 states and 2710 transitions. [2021-11-06 10:35:11,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 10:35:11,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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 [2021-11-06 10:35:11,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:35:11,274 INFO L225 Difference]: With dead ends: 2299 [2021-11-06 10:35:11,279 INFO L226 Difference]: Without dead ends: 1317 [2021-11-06 10:35:11,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:35:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2021-11-06 10:35:11,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1137. [2021-11-06 10:35:11,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1123 states have (on average 1.1754229741763134) internal successors, (1320), 1136 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:11,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1320 transitions. [2021-11-06 10:35:11,320 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1320 transitions. Word has length 67 [2021-11-06 10:35:11,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:35:11,320 INFO L470 AbstractCegarLoop]: Abstraction has 1137 states and 1320 transitions. [2021-11-06 10:35:11,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 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) [2021-11-06 10:35:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1320 transitions. [2021-11-06 10:35:11,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-06 10:35:11,321 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:35:11,321 INFO L513 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] [2021-11-06 10:35:11,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-06 10:35:11,321 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:35:11,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:35:11,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1473820389, now seen corresponding path program 1 times [2021-11-06 10:35:11,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:35:11,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181515955] [2021-11-06 10:35:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:35:11,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:35:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:35:13,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:35:13,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:35:13,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181515955] [2021-11-06 10:35:13,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181515955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:35:13,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:35:13,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 10:35:13,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82336449] [2021-11-06 10:35:13,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 10:35:13,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:35:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 10:35:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-06 10:35:13,690 INFO L87 Difference]: Start difference. First operand 1137 states and 1320 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:20,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:35:20,523 INFO L93 Difference]: Finished difference Result 2744 states and 3195 transitions. [2021-11-06 10:35:20,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-06 10:35:20,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2021-11-06 10:35:20,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:35:20,527 INFO L225 Difference]: With dead ends: 2744 [2021-11-06 10:35:20,527 INFO L226 Difference]: Without dead ends: 1723 [2021-11-06 10:35:20,528 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-06 10:35:20,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2021-11-06 10:35:20,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1141. [2021-11-06 10:35:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1127 states have (on average 1.1748003549245785) internal successors, (1324), 1140 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1324 transitions. [2021-11-06 10:35:20,579 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1324 transitions. Word has length 69 [2021-11-06 10:35:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:35:20,579 INFO L470 AbstractCegarLoop]: Abstraction has 1141 states and 1324 transitions. [2021-11-06 10:35:20,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1324 transitions. [2021-11-06 10:35:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 10:35:20,581 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:35:20,581 INFO L513 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] [2021-11-06 10:35:20,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-06 10:35:20,581 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:35:20,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:35:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash -553337652, now seen corresponding path program 1 times [2021-11-06 10:35:20,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:35:20,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066237712] [2021-11-06 10:35:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:35:20,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:35:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:35:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:35:21,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:35:21,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066237712] [2021-11-06 10:35:21,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066237712] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:35:21,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:35:21,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:35:21,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904936176] [2021-11-06 10:35:21,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:35:21,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:35:21,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:35:21,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:35:21,439 INFO L87 Difference]: Start difference. First operand 1141 states and 1324 transitions. Second operand has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:35:33,171 INFO L93 Difference]: Finished difference Result 2619 states and 3012 transitions. [2021-11-06 10:35:33,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-06 10:35:33,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-11-06 10:35:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:35:33,177 INFO L225 Difference]: With dead ends: 2619 [2021-11-06 10:35:33,177 INFO L226 Difference]: Without dead ends: 2048 [2021-11-06 10:35:33,178 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2021-11-06 10:35:33,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2021-11-06 10:35:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1171. [2021-11-06 10:35:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1157 states have (on average 1.1728608470181503) internal successors, (1357), 1170 states have internal predecessors, (1357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:33,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1357 transitions. [2021-11-06 10:35:33,217 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1357 transitions. Word has length 72 [2021-11-06 10:35:33,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:35:33,217 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1357 transitions. [2021-11-06 10:35:33,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.0) internal successors, (72), 12 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:33,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1357 transitions. [2021-11-06 10:35:33,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 10:35:33,218 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:35:33,218 INFO L513 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] [2021-11-06 10:35:33,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-06 10:35:33,218 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:35:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:35:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1511080838, now seen corresponding path program 1 times [2021-11-06 10:35:33,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:35:33,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418739111] [2021-11-06 10:35:33,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:35:33,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:35:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:35:37,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:35:37,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:35:37,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418739111] [2021-11-06 10:35:37,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418739111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:35:37,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:35:37,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-06 10:35:37,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828511190] [2021-11-06 10:35:37,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-06 10:35:37,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:35:37,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-06 10:35:37,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-11-06 10:35:37,404 INFO L87 Difference]: Start difference. First operand 1171 states and 1357 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:59,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:35:59,619 INFO L93 Difference]: Finished difference Result 1832 states and 2099 transitions. [2021-11-06 10:35:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-06 10:35:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-11-06 10:35:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:35:59,623 INFO L225 Difference]: With dead ends: 1832 [2021-11-06 10:35:59,623 INFO L226 Difference]: Without dead ends: 1505 [2021-11-06 10:35:59,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2021-11-06 10:35:59,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2021-11-06 10:35:59,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 897. [2021-11-06 10:35:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 883 states have (on average 1.1585503963759909) internal successors, (1023), 896 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1023 transitions. [2021-11-06 10:35:59,654 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1023 transitions. Word has length 72 [2021-11-06 10:35:59,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:35:59,655 INFO L470 AbstractCegarLoop]: Abstraction has 897 states and 1023 transitions. [2021-11-06 10:35:59,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:35:59,655 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1023 transitions. [2021-11-06 10:35:59,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 10:35:59,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:35:59,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:35:59,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-06 10:35:59,656 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:35:59,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:35:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2013782192, now seen corresponding path program 1 times [2021-11-06 10:35:59,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:35:59,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933719759] [2021-11-06 10:35:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:35:59,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:35:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:36:00,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:36:00,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:36:00,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933719759] [2021-11-06 10:36:00,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933719759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:36:00,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:36:00,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 10:36:00,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675731291] [2021-11-06 10:36:00,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 10:36:00,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:36:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 10:36:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-06 10:36:00,218 INFO L87 Difference]: Start difference. First operand 897 states and 1023 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:36:09,975 INFO L93 Difference]: Finished difference Result 1828 states and 2094 transitions. [2021-11-06 10:36:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-06 10:36:09,976 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-06 10:36:09,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:36:09,978 INFO L225 Difference]: With dead ends: 1828 [2021-11-06 10:36:09,978 INFO L226 Difference]: Without dead ends: 1262 [2021-11-06 10:36:09,979 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-11-06 10:36:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2021-11-06 10:36:10,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1156. [2021-11-06 10:36:10,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1142 states have (on average 1.161120840630473) internal successors, (1326), 1155 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:10,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1326 transitions. [2021-11-06 10:36:10,017 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1326 transitions. Word has length 73 [2021-11-06 10:36:10,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:36:10,018 INFO L470 AbstractCegarLoop]: Abstraction has 1156 states and 1326 transitions. [2021-11-06 10:36:10,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1326 transitions. [2021-11-06 10:36:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 10:36:10,019 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:36:10,019 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:36:10,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-06 10:36:10,019 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:36:10,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:36:10,019 INFO L85 PathProgramCache]: Analyzing trace with hash -276570032, now seen corresponding path program 1 times [2021-11-06 10:36:10,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:36:10,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751623821] [2021-11-06 10:36:10,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:36:10,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:36:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:36:11,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:36:11,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:36:11,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751623821] [2021-11-06 10:36:11,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751623821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:36:11,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:36:11,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-06 10:36:11,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497714531] [2021-11-06 10:36:11,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-06 10:36:11,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:36:11,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-06 10:36:11,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-06 10:36:11,173 INFO L87 Difference]: Start difference. First operand 1156 states and 1326 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:29,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:36:29,594 INFO L93 Difference]: Finished difference Result 2968 states and 3417 transitions. [2021-11-06 10:36:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-06 10:36:29,595 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-06 10:36:29,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:36:29,600 INFO L225 Difference]: With dead ends: 2968 [2021-11-06 10:36:29,600 INFO L226 Difference]: Without dead ends: 2454 [2021-11-06 10:36:29,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=417, Invalid=915, Unknown=0, NotChecked=0, Total=1332 [2021-11-06 10:36:29,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2454 states. [2021-11-06 10:36:29,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2454 to 1433. [2021-11-06 10:36:29,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1419 states have (on average 1.1719520789288231) internal successors, (1663), 1432 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:29,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1663 transitions. [2021-11-06 10:36:29,658 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1663 transitions. Word has length 73 [2021-11-06 10:36:29,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:36:29,658 INFO L470 AbstractCegarLoop]: Abstraction has 1433 states and 1663 transitions. [2021-11-06 10:36:29,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 14 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:29,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1663 transitions. [2021-11-06 10:36:29,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-06 10:36:29,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:36:29,660 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:36:29,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-06 10:36:29,660 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:36:29,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:36:29,660 INFO L85 PathProgramCache]: Analyzing trace with hash -802786036, now seen corresponding path program 1 times [2021-11-06 10:36:29,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:36:29,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006493883] [2021-11-06 10:36:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:36:29,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:36:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:36:30,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:36:30,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:36:30,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006493883] [2021-11-06 10:36:30,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006493883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:36:30,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:36:30,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 10:36:30,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121281121] [2021-11-06 10:36:30,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 10:36:30,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:36:30,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 10:36:30,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:36:30,135 INFO L87 Difference]: Start difference. First operand 1433 states and 1663 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:36:33,746 INFO L93 Difference]: Finished difference Result 1991 states and 2299 transitions. [2021-11-06 10:36:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 10:36:33,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-06 10:36:33,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:36:33,750 INFO L225 Difference]: With dead ends: 1991 [2021-11-06 10:36:33,750 INFO L226 Difference]: Without dead ends: 1677 [2021-11-06 10:36:33,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:36:33,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2021-11-06 10:36:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1375. [2021-11-06 10:36:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1361 states have (on average 1.1638501102130787) internal successors, (1584), 1374 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:33,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1584 transitions. [2021-11-06 10:36:33,813 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1584 transitions. Word has length 73 [2021-11-06 10:36:33,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:36:33,813 INFO L470 AbstractCegarLoop]: Abstraction has 1375 states and 1584 transitions. [2021-11-06 10:36:33,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:33,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1584 transitions. [2021-11-06 10:36:33,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-06 10:36:33,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:36:33,814 INFO L513 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] [2021-11-06 10:36:33,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-06 10:36:33,815 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:36:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:36:33,815 INFO L85 PathProgramCache]: Analyzing trace with hash 85125233, now seen corresponding path program 1 times [2021-11-06 10:36:33,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:36:33,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289557521] [2021-11-06 10:36:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:36:33,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:36:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:36:34,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:36:34,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:36:34,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289557521] [2021-11-06 10:36:34,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289557521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:36:34,807 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:36:34,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-06 10:36:34,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096304500] [2021-11-06 10:36:34,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-06 10:36:34,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:36:34,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-06 10:36:34,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-06 10:36:34,809 INFO L87 Difference]: Start difference. First operand 1375 states and 1584 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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) [2021-11-06 10:36:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:36:48,940 INFO L93 Difference]: Finished difference Result 2209 states and 2493 transitions. [2021-11-06 10:36:48,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-06 10:36:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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 [2021-11-06 10:36:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:36:48,944 INFO L225 Difference]: With dead ends: 2209 [2021-11-06 10:36:48,944 INFO L226 Difference]: Without dead ends: 2068 [2021-11-06 10:36:48,945 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2021-11-06 10:36:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2021-11-06 10:36:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1370. [2021-11-06 10:36:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1356 states have (on average 1.163716814159292) internal successors, (1578), 1369 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:36:49,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1578 transitions. [2021-11-06 10:36:49,017 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1578 transitions. Word has length 74 [2021-11-06 10:36:49,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:36:49,017 INFO L470 AbstractCegarLoop]: Abstraction has 1370 states and 1578 transitions. [2021-11-06 10:36:49,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 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) [2021-11-06 10:36:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1578 transitions. [2021-11-06 10:36:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-06 10:36:49,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:36:49,018 INFO L513 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] [2021-11-06 10:36:49,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-06 10:36:49,018 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:36:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:36:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1418160450, now seen corresponding path program 1 times [2021-11-06 10:36:49,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:36:49,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629204084] [2021-11-06 10:36:49,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:36:49,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:36:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:36:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:36:51,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:36:51,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629204084] [2021-11-06 10:36:51,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629204084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:36:51,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:36:51,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-06 10:36:51,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651827424] [2021-11-06 10:36:51,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-06 10:36:51,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:36:51,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-06 10:36:51,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-06 10:36:51,534 INFO L87 Difference]: Start difference. First operand 1370 states and 1578 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 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) [2021-11-06 10:37:05,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:37:05,817 INFO L93 Difference]: Finished difference Result 2329 states and 2619 transitions. [2021-11-06 10:37:05,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-06 10:37:05,817 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 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 [2021-11-06 10:37:05,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:37:05,820 INFO L225 Difference]: With dead ends: 2329 [2021-11-06 10:37:05,820 INFO L226 Difference]: Without dead ends: 2327 [2021-11-06 10:37:05,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=480, Invalid=1776, Unknown=0, NotChecked=0, Total=2256 [2021-11-06 10:37:05,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2021-11-06 10:37:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 1363. [2021-11-06 10:37:05,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 1349 states have (on average 1.1645663454410675) internal successors, (1571), 1362 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1571 transitions. [2021-11-06 10:37:05,888 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1571 transitions. Word has length 75 [2021-11-06 10:37:05,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:37:05,888 INFO L470 AbstractCegarLoop]: Abstraction has 1363 states and 1571 transitions. [2021-11-06 10:37:05,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 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) [2021-11-06 10:37:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1571 transitions. [2021-11-06 10:37:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 10:37:05,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:37:05,889 INFO L513 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] [2021-11-06 10:37:05,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-06 10:37:05,890 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:37:05,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:37:05,890 INFO L85 PathProgramCache]: Analyzing trace with hash 753054514, now seen corresponding path program 1 times [2021-11-06 10:37:05,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:37:05,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863986259] [2021-11-06 10:37:05,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:37:05,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:37:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:37:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:37:12,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:37:12,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863986259] [2021-11-06 10:37:12,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863986259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:37:12,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:37:12,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-06 10:37:12,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619101823] [2021-11-06 10:37:12,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-06 10:37:12,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:37:12,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-06 10:37:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-11-06 10:37:12,590 INFO L87 Difference]: Start difference. First operand 1363 states and 1571 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:37:45,935 INFO L93 Difference]: Finished difference Result 2349 states and 2676 transitions. [2021-11-06 10:37:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-06 10:37:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-11-06 10:37:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:37:45,938 INFO L225 Difference]: With dead ends: 2349 [2021-11-06 10:37:45,938 INFO L226 Difference]: Without dead ends: 2048 [2021-11-06 10:37:45,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2021-11-06 10:37:45,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2021-11-06 10:37:46,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1634. [2021-11-06 10:37:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1620 states have (on average 1.1703703703703703) internal successors, (1896), 1633 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 1896 transitions. [2021-11-06 10:37:46,005 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 1896 transitions. Word has length 78 [2021-11-06 10:37:46,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:37:46,005 INFO L470 AbstractCegarLoop]: Abstraction has 1634 states and 1896 transitions. [2021-11-06 10:37:46,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:46,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 1896 transitions. [2021-11-06 10:37:46,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 10:37:46,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:37:46,006 INFO L513 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] [2021-11-06 10:37:46,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-06 10:37:46,006 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:37:46,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:37:46,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1433112884, now seen corresponding path program 1 times [2021-11-06 10:37:46,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:37:46,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122116218] [2021-11-06 10:37:46,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:37:46,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:37:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:37:46,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:37:46,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:37:46,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122116218] [2021-11-06 10:37:46,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122116218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:37:46,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:37:46,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:37:46,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603164805] [2021-11-06 10:37:46,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:37:46,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:37:46,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:37:46,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:37:46,544 INFO L87 Difference]: Start difference. First operand 1634 states and 1896 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:49,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:37:49,761 INFO L93 Difference]: Finished difference Result 2682 states and 3168 transitions. [2021-11-06 10:37:49,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:37:49,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2021-11-06 10:37:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:37:49,764 INFO L225 Difference]: With dead ends: 2682 [2021-11-06 10:37:49,764 INFO L226 Difference]: Without dead ends: 1544 [2021-11-06 10:37:49,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:37:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2021-11-06 10:37:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1544. [2021-11-06 10:37:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1530 states have (on average 1.1503267973856208) internal successors, (1760), 1543 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:49,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1760 transitions. [2021-11-06 10:37:49,839 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1760 transitions. Word has length 78 [2021-11-06 10:37:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:37:49,839 INFO L470 AbstractCegarLoop]: Abstraction has 1544 states and 1760 transitions. [2021-11-06 10:37:49,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:37:49,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1760 transitions. [2021-11-06 10:37:49,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 10:37:49,840 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:37:49,840 INFO L513 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] [2021-11-06 10:37:49,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-06 10:37:49,841 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:37:49,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:37:49,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1574198113, now seen corresponding path program 1 times [2021-11-06 10:37:49,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:37:49,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146109199] [2021-11-06 10:37:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:37:49,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:37:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:37:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:37:50,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:37:50,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146109199] [2021-11-06 10:37:50,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146109199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:37:50,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:37:50,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 10:37:50,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707267550] [2021-11-06 10:37:50,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 10:37:50,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:37:50,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 10:37:50,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:37:50,443 INFO L87 Difference]: Start difference. First operand 1544 states and 1760 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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) [2021-11-06 10:38:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:38:01,986 INFO L93 Difference]: Finished difference Result 2399 states and 2731 transitions. [2021-11-06 10:38:01,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-06 10:38:01,987 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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 [2021-11-06 10:38:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:38:01,990 INFO L225 Difference]: With dead ends: 2399 [2021-11-06 10:38:01,990 INFO L226 Difference]: Without dead ends: 1968 [2021-11-06 10:38:01,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-11-06 10:38:01,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-11-06 10:38:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1546. [2021-11-06 10:38:02,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1532 states have (on average 1.1507832898172323) internal successors, (1763), 1545 states have internal predecessors, (1763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 1763 transitions. [2021-11-06 10:38:02,062 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 1763 transitions. Word has length 79 [2021-11-06 10:38:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:38:02,062 INFO L470 AbstractCegarLoop]: Abstraction has 1546 states and 1763 transitions. [2021-11-06 10:38:02,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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) [2021-11-06 10:38:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 1763 transitions. [2021-11-06 10:38:02,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 10:38:02,063 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:38:02,063 INFO L513 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] [2021-11-06 10:38:02,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-06 10:38:02,064 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:38:02,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:38:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1766268189, now seen corresponding path program 1 times [2021-11-06 10:38:02,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:38:02,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106664801] [2021-11-06 10:38:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:38:02,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:38:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:38:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:38:05,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:38:05,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106664801] [2021-11-06 10:38:05,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106664801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:38:05,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:38:05,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-06 10:38:05,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939074015] [2021-11-06 10:38:05,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-06 10:38:05,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:38:05,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-06 10:38:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-11-06 10:38:05,064 INFO L87 Difference]: Start difference. First operand 1546 states and 1763 transitions. Second operand has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:30,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:38:30,713 INFO L93 Difference]: Finished difference Result 1982 states and 2205 transitions. [2021-11-06 10:38:30,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-06 10:38:30,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-06 10:38:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:38:30,717 INFO L225 Difference]: With dead ends: 1982 [2021-11-06 10:38:30,717 INFO L226 Difference]: Without dead ends: 1850 [2021-11-06 10:38:30,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=330, Invalid=930, Unknown=0, NotChecked=0, Total=1260 [2021-11-06 10:38:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-06 10:38:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1546. [2021-11-06 10:38:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1532 states have (on average 1.150130548302872) internal successors, (1762), 1545 states have internal predecessors, (1762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 1762 transitions. [2021-11-06 10:38:30,787 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 1762 transitions. Word has length 80 [2021-11-06 10:38:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:38:30,787 INFO L470 AbstractCegarLoop]: Abstraction has 1546 states and 1762 transitions. [2021-11-06 10:38:30,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 1762 transitions. [2021-11-06 10:38:30,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 10:38:30,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:38:30,788 INFO L513 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] [2021-11-06 10:38:30,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-06 10:38:30,789 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:38:30,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:38:30,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1856337173, now seen corresponding path program 1 times [2021-11-06 10:38:30,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:38:30,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908027660] [2021-11-06 10:38:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:38:30,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:38:30,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:38:31,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:38:31,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:38:31,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908027660] [2021-11-06 10:38:31,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908027660] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:38:31,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:38:31,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-06 10:38:31,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200297652] [2021-11-06 10:38:31,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-06 10:38:31,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:38:31,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-06 10:38:31,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-11-06 10:38:31,447 INFO L87 Difference]: Start difference. First operand 1546 states and 1762 transitions. Second operand has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:42,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:38:42,858 INFO L93 Difference]: Finished difference Result 2730 states and 3118 transitions. [2021-11-06 10:38:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-06 10:38:42,858 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-06 10:38:42,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:38:42,862 INFO L225 Difference]: With dead ends: 2730 [2021-11-06 10:38:42,862 INFO L226 Difference]: Without dead ends: 2710 [2021-11-06 10:38:42,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2021-11-06 10:38:42,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2710 states. [2021-11-06 10:38:42,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2710 to 1675. [2021-11-06 10:38:42,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1675 states, 1661 states have (on average 1.136062612883805) internal successors, (1887), 1674 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:42,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 1887 transitions. [2021-11-06 10:38:42,943 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 1887 transitions. Word has length 80 [2021-11-06 10:38:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:38:42,944 INFO L470 AbstractCegarLoop]: Abstraction has 1675 states and 1887 transitions. [2021-11-06 10:38:42,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:42,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 1887 transitions. [2021-11-06 10:38:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 10:38:42,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:38:42,945 INFO L513 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] [2021-11-06 10:38:42,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-06 10:38:42,946 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:38:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:38:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash 991757234, now seen corresponding path program 1 times [2021-11-06 10:38:42,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:38:42,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002017736] [2021-11-06 10:38:42,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:38:42,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:38:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:38:46,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:38:46,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:38:46,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002017736] [2021-11-06 10:38:46,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002017736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:38:46,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:38:46,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-06 10:38:46,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759166958] [2021-11-06 10:38:46,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-06 10:38:46,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:38:46,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-06 10:38:46,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-06 10:38:46,361 INFO L87 Difference]: Start difference. First operand 1675 states and 1887 transitions. Second operand has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:38:58,363 INFO L93 Difference]: Finished difference Result 3016 states and 3351 transitions. [2021-11-06 10:38:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-06 10:38:58,363 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2021-11-06 10:38:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:38:58,367 INFO L225 Difference]: With dead ends: 3016 [2021-11-06 10:38:58,367 INFO L226 Difference]: Without dead ends: 2505 [2021-11-06 10:38:58,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=209, Invalid=721, Unknown=0, NotChecked=0, Total=930 [2021-11-06 10:38:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2021-11-06 10:38:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 1658. [2021-11-06 10:38:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1658 states, 1644 states have (on average 1.1332116788321167) internal successors, (1863), 1657 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:58,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1658 states to 1658 states and 1863 transitions. [2021-11-06 10:38:58,486 INFO L78 Accepts]: Start accepts. Automaton has 1658 states and 1863 transitions. Word has length 81 [2021-11-06 10:38:58,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:38:58,486 INFO L470 AbstractCegarLoop]: Abstraction has 1658 states and 1863 transitions. [2021-11-06 10:38:58,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:38:58,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1658 states and 1863 transitions. [2021-11-06 10:38:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 10:38:58,487 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:38:58,487 INFO L513 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] [2021-11-06 10:38:58,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-06 10:38:58,487 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:38:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:38:58,488 INFO L85 PathProgramCache]: Analyzing trace with hash -167578343, now seen corresponding path program 1 times [2021-11-06 10:38:58,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:38:58,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320016346] [2021-11-06 10:38:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:38:58,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:39:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:39:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:39:02,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:39:02,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320016346] [2021-11-06 10:39:02,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320016346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:39:02,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:39:02,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-06 10:39:02,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41420510] [2021-11-06 10:39:02,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-06 10:39:02,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:39:02,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-06 10:39:02,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-06 10:39:02,513 INFO L87 Difference]: Start difference. First operand 1658 states and 1863 transitions. Second operand has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:25,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:39:25,631 INFO L93 Difference]: Finished difference Result 3372 states and 3764 transitions. [2021-11-06 10:39:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-06 10:39:25,632 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-06 10:39:25,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:39:25,636 INFO L225 Difference]: With dead ends: 3372 [2021-11-06 10:39:25,636 INFO L226 Difference]: Without dead ends: 2741 [2021-11-06 10:39:25,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=399, Invalid=1323, Unknown=0, NotChecked=0, Total=1722 [2021-11-06 10:39:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-11-06 10:39:25,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 1665. [2021-11-06 10:39:25,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1665 states, 1651 states have (on average 1.1278013325257419) internal successors, (1862), 1664 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1665 states to 1665 states and 1862 transitions. [2021-11-06 10:39:25,727 INFO L78 Accepts]: Start accepts. Automaton has 1665 states and 1862 transitions. Word has length 84 [2021-11-06 10:39:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:39:25,728 INFO L470 AbstractCegarLoop]: Abstraction has 1665 states and 1862 transitions. [2021-11-06 10:39:25,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.25) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1665 states and 1862 transitions. [2021-11-06 10:39:25,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 10:39:25,729 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:39:25,729 INFO L513 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] [2021-11-06 10:39:25,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-06 10:39:25,729 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:39:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:39:25,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2119569252, now seen corresponding path program 1 times [2021-11-06 10:39:25,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:39:25,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702898160] [2021-11-06 10:39:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:39:25,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:39:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:39:26,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:39:26,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:39:26,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702898160] [2021-11-06 10:39:26,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702898160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:39:26,961 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:39:26,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-06 10:39:26,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480743870] [2021-11-06 10:39:26,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-06 10:39:26,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:39:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-06 10:39:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-06 10:39:26,963 INFO L87 Difference]: Start difference. First operand 1665 states and 1862 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:39:45,009 INFO L93 Difference]: Finished difference Result 2792 states and 3072 transitions. [2021-11-06 10:39:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-06 10:39:45,010 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-06 10:39:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:39:45,013 INFO L225 Difference]: With dead ends: 2792 [2021-11-06 10:39:45,013 INFO L226 Difference]: Without dead ends: 2564 [2021-11-06 10:39:45,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=325, Invalid=1157, Unknown=0, NotChecked=0, Total=1482 [2021-11-06 10:39:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2021-11-06 10:39:45,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 1630. [2021-11-06 10:39:45,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1616 states have (on average 1.1287128712871286) internal successors, (1824), 1629 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:45,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 1824 transitions. [2021-11-06 10:39:45,102 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 1824 transitions. Word has length 84 [2021-11-06 10:39:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:39:45,102 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 1824 transitions. [2021-11-06 10:39:45,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 1824 transitions. [2021-11-06 10:39:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 10:39:45,103 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:39:45,103 INFO L513 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] [2021-11-06 10:39:45,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-06 10:39:45,103 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:39:45,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:39:45,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1667191248, now seen corresponding path program 1 times [2021-11-06 10:39:45,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:39:45,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245737176] [2021-11-06 10:39:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:39:45,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:39:46,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:39:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:39:47,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:39:47,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245737176] [2021-11-06 10:39:47,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245737176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:39:47,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:39:47,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-06 10:39:47,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41500845] [2021-11-06 10:39:47,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-06 10:39:47,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:39:47,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-06 10:39:47,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-06 10:39:47,429 INFO L87 Difference]: Start difference. First operand 1630 states and 1824 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2021-11-06 10:39:56,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:39:56,910 INFO L93 Difference]: Finished difference Result 3624 states and 4039 transitions. [2021-11-06 10:39:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 10:39:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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 [2021-11-06 10:39:56,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:39:56,913 INFO L225 Difference]: With dead ends: 3624 [2021-11-06 10:39:56,913 INFO L226 Difference]: Without dead ends: 2384 [2021-11-06 10:39:56,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-06 10:39:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-11-06 10:39:56,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 1638. [2021-11-06 10:39:56,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1624 states have (on average 1.1280788177339902) internal successors, (1832), 1637 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:39:56,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 1832 transitions. [2021-11-06 10:39:56,997 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 1832 transitions. Word has length 85 [2021-11-06 10:39:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:39:56,997 INFO L470 AbstractCegarLoop]: Abstraction has 1638 states and 1832 transitions. [2021-11-06 10:39:56,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2021-11-06 10:39:56,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 1832 transitions. [2021-11-06 10:39:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 10:39:56,998 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:39:56,999 INFO L513 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] [2021-11-06 10:39:56,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-06 10:39:56,999 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:39:56,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:39:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1843494159, now seen corresponding path program 1 times [2021-11-06 10:39:56,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:39:57,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60040559] [2021-11-06 10:39:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:39:57,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:39:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:39:57,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:39:57,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:39:57,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60040559] [2021-11-06 10:39:57,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60040559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:39:57,740 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:39:57,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 10:39:57,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101529328] [2021-11-06 10:39:57,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 10:39:57,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:39:57,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 10:39:57,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:39:57,741 INFO L87 Difference]: Start difference. First operand 1638 states and 1832 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) [2021-11-06 10:40:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:40:06,616 INFO L93 Difference]: Finished difference Result 2350 states and 2625 transitions. [2021-11-06 10:40:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 10:40:06,617 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 [2021-11-06 10:40:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:40:06,619 INFO L225 Difference]: With dead ends: 2350 [2021-11-06 10:40:06,619 INFO L226 Difference]: Without dead ends: 1481 [2021-11-06 10:40:06,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-06 10:40:06,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2021-11-06 10:40:06,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1421. [2021-11-06 10:40:06,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1407 states have (on average 1.1080312722103767) internal successors, (1559), 1420 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:40:06,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1559 transitions. [2021-11-06 10:40:06,702 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1559 transitions. Word has length 85 [2021-11-06 10:40:06,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:40:06,702 INFO L470 AbstractCegarLoop]: Abstraction has 1421 states and 1559 transitions. [2021-11-06 10:40:06,702 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) [2021-11-06 10:40:06,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1559 transitions. [2021-11-06 10:40:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 10:40:06,703 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:40:06,703 INFO L513 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] [2021-11-06 10:40:06,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-06 10:40:06,703 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:40:06,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:40:06,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1087418883, now seen corresponding path program 1 times [2021-11-06 10:40:06,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:40:06,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405471624] [2021-11-06 10:40:06,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:40:06,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:40:07,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:40:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:40:08,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:40:08,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405471624] [2021-11-06 10:40:08,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405471624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:40:08,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:40:08,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-11-06 10:40:08,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068113279] [2021-11-06 10:40:08,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-06 10:40:08,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:40:08,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-06 10:40:08,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2021-11-06 10:40:08,003 INFO L87 Difference]: Start difference. First operand 1421 states and 1559 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) [2021-11-06 10:40:30,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:40:30,553 INFO L93 Difference]: Finished difference Result 2795 states and 3050 transitions. [2021-11-06 10:40:30,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-06 10:40:30,554 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 [2021-11-06 10:40:30,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:40:30,556 INFO L225 Difference]: With dead ends: 2795 [2021-11-06 10:40:30,557 INFO L226 Difference]: Without dead ends: 2108 [2021-11-06 10:40:30,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=406, Invalid=1076, Unknown=0, NotChecked=0, Total=1482 [2021-11-06 10:40:30,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2021-11-06 10:40:30,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1464. [2021-11-06 10:40:30,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1450 states have (on average 1.106896551724138) internal successors, (1605), 1463 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:40:30,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1605 transitions. [2021-11-06 10:40:30,644 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1605 transitions. Word has length 85 [2021-11-06 10:40:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:40:30,645 INFO L470 AbstractCegarLoop]: Abstraction has 1464 states and 1605 transitions. [2021-11-06 10:40:30,645 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) [2021-11-06 10:40:30,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1605 transitions. [2021-11-06 10:40:30,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-06 10:40:30,645 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:40:30,646 INFO L513 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] [2021-11-06 10:40:30,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-06 10:40:30,646 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:40:30,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:40:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash 241250773, now seen corresponding path program 1 times [2021-11-06 10:40:30,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:40:30,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596502753] [2021-11-06 10:40:30,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:40:30,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:40:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:40:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:40:32,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:40:32,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596502753] [2021-11-06 10:40:32,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596502753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:40:32,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:40:32,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-06 10:40:32,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830109861] [2021-11-06 10:40:32,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-06 10:40:32,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:40:32,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-06 10:40:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-11-06 10:40:32,592 INFO L87 Difference]: Start difference. First operand 1464 states and 1605 transitions. Second operand has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 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) [2021-11-06 10:40:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:40:54,191 INFO L93 Difference]: Finished difference Result 2472 states and 2666 transitions. [2021-11-06 10:40:54,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-06 10:40:54,192 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 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 [2021-11-06 10:40:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:40:54,194 INFO L225 Difference]: With dead ends: 2472 [2021-11-06 10:40:54,194 INFO L226 Difference]: Without dead ends: 2105 [2021-11-06 10:40:54,195 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=438, Invalid=1368, Unknown=0, NotChecked=0, Total=1806 [2021-11-06 10:40:54,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2021-11-06 10:40:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 1292. [2021-11-06 10:40:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1278 states have (on average 1.107981220657277) internal successors, (1416), 1291 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:40:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1416 transitions. [2021-11-06 10:40:54,266 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1416 transitions. Word has length 87 [2021-11-06 10:40:54,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:40:54,266 INFO L470 AbstractCegarLoop]: Abstraction has 1292 states and 1416 transitions. [2021-11-06 10:40:54,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.117647058823529) internal successors, (87), 17 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) [2021-11-06 10:40:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1416 transitions. [2021-11-06 10:40:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 10:40:54,267 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:40:54,268 INFO L513 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] [2021-11-06 10:40:54,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-06 10:40:54,268 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:40:54,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:40:54,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1871883389, now seen corresponding path program 1 times [2021-11-06 10:40:54,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:40:54,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814136839] [2021-11-06 10:40:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:40:54,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:40:56,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:40:57,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:40:57,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:40:57,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814136839] [2021-11-06 10:40:57,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814136839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:40:57,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:40:57,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-06 10:40:57,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581533465] [2021-11-06 10:40:57,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-06 10:40:57,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:40:57,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-06 10:40:57,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-06 10:40:57,418 INFO L87 Difference]: Start difference. First operand 1292 states and 1416 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 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) [2021-11-06 10:41:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:41:07,353 INFO L93 Difference]: Finished difference Result 2643 states and 2858 transitions. [2021-11-06 10:41:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-06 10:41:07,354 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 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 [2021-11-06 10:41:07,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:41:07,356 INFO L225 Difference]: With dead ends: 2643 [2021-11-06 10:41:07,356 INFO L226 Difference]: Without dead ends: 2283 [2021-11-06 10:41:07,357 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=345, Invalid=777, Unknown=0, NotChecked=0, Total=1122 [2021-11-06 10:41:07,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2283 states. [2021-11-06 10:41:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2283 to 1287. [2021-11-06 10:41:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1273 states have (on average 1.106048703849175) internal successors, (1408), 1286 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1408 transitions. [2021-11-06 10:41:07,439 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1408 transitions. Word has length 88 [2021-11-06 10:41:07,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:41:07,439 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 1408 transitions. [2021-11-06 10:41:07,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 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) [2021-11-06 10:41:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1408 transitions. [2021-11-06 10:41:07,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-06 10:41:07,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:41:07,440 INFO L513 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] [2021-11-06 10:41:07,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-06 10:41:07,440 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:41:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:41:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 217652755, now seen corresponding path program 1 times [2021-11-06 10:41:07,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:41:07,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318823084] [2021-11-06 10:41:07,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:41:07,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:41:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:41:09,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:41:09,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:41:09,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318823084] [2021-11-06 10:41:09,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318823084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:41:09,087 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:41:09,087 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-06 10:41:09,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39601459] [2021-11-06 10:41:09,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-06 10:41:09,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:41:09,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-06 10:41:09,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-11-06 10:41:09,088 INFO L87 Difference]: Start difference. First operand 1287 states and 1408 transitions. Second operand has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:28,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:41:28,500 INFO L93 Difference]: Finished difference Result 2109 states and 2272 transitions. [2021-11-06 10:41:28,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-06 10:41:28,501 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-06 10:41:28,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:41:28,502 INFO L225 Difference]: With dead ends: 2109 [2021-11-06 10:41:28,502 INFO L226 Difference]: Without dead ends: 1611 [2021-11-06 10:41:28,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=460, Invalid=1520, Unknown=0, NotChecked=0, Total=1980 [2021-11-06 10:41:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1611 states. [2021-11-06 10:41:28,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1611 to 1007. [2021-11-06 10:41:28,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 998 states have (on average 1.097194388777555) internal successors, (1095), 1006 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1095 transitions. [2021-11-06 10:41:28,562 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1095 transitions. Word has length 89 [2021-11-06 10:41:28,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:41:28,563 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1095 transitions. [2021-11-06 10:41:28,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 17 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:28,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1095 transitions. [2021-11-06 10:41:28,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 10:41:28,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:41:28,563 INFO L513 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] [2021-11-06 10:41:28,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-06 10:41:28,564 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:41:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:41:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash 84424945, now seen corresponding path program 1 times [2021-11-06 10:41:28,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:41:28,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373508370] [2021-11-06 10:41:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:41:28,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:41:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:41:28,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:41:28,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:41:28,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373508370] [2021-11-06 10:41:28,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373508370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:41:28,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:41:28,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:41:28,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628319815] [2021-11-06 10:41:28,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:41:28,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:41:28,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:41:28,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:41:28,706 INFO L87 Difference]: Start difference. First operand 1007 states and 1095 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2021-11-06 10:41:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:41:28,852 INFO L93 Difference]: Finished difference Result 1580 states and 1720 transitions. [2021-11-06 10:41:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:41:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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 [2021-11-06 10:41:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:41:28,854 INFO L225 Difference]: With dead ends: 1580 [2021-11-06 10:41:28,854 INFO L226 Difference]: Without dead ends: 1112 [2021-11-06 10:41:28,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:41:28,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-11-06 10:41:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1013. [2021-11-06 10:41:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 1004 states have (on average 1.094621513944223) internal successors, (1099), 1012 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1099 transitions. [2021-11-06 10:41:28,915 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1099 transitions. Word has length 90 [2021-11-06 10:41:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:41:28,915 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1099 transitions. [2021-11-06 10:41:28,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2021-11-06 10:41:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1099 transitions. [2021-11-06 10:41:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 10:41:28,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:41:28,916 INFO L513 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] [2021-11-06 10:41:28,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-06 10:41:28,916 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:41:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:41:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1653713986, now seen corresponding path program 1 times [2021-11-06 10:41:28,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:41:28,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718270277] [2021-11-06 10:41:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:41:28,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:41:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:41:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:41:33,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:41:33,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718270277] [2021-11-06 10:41:33,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718270277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:41:33,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:41:33,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-06 10:41:33,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587312649] [2021-11-06 10:41:33,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-06 10:41:33,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:41:33,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-06 10:41:33,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-06 10:41:33,109 INFO L87 Difference]: Start difference. First operand 1013 states and 1099 transitions. Second operand has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:41:45,155 INFO L93 Difference]: Finished difference Result 1488 states and 1623 transitions. [2021-11-06 10:41:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-06 10:41:45,156 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2021-11-06 10:41:45,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:41:45,157 INFO L225 Difference]: With dead ends: 1488 [2021-11-06 10:41:45,157 INFO L226 Difference]: Without dead ends: 1006 [2021-11-06 10:41:45,158 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2021-11-06 10:41:45,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-11-06 10:41:45,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 986. [2021-11-06 10:41:45,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 978 states have (on average 1.086912065439673) internal successors, (1063), 985 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:45,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1063 transitions. [2021-11-06 10:41:45,215 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1063 transitions. Word has length 91 [2021-11-06 10:41:45,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:41:45,216 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1063 transitions. [2021-11-06 10:41:45,216 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 12 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1063 transitions. [2021-11-06 10:41:45,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 10:41:45,217 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:41:45,217 INFO L513 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] [2021-11-06 10:41:45,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-06 10:41:45,217 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:41:45,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:41:45,217 INFO L85 PathProgramCache]: Analyzing trace with hash -753662022, now seen corresponding path program 1 times [2021-11-06 10:41:45,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:41:45,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558530296] [2021-11-06 10:41:45,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:41:45,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:41:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:41:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:41:45,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:41:45,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558530296] [2021-11-06 10:41:45,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558530296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:41:45,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:41:45,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 10:41:45,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628369298] [2021-11-06 10:41:45,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 10:41:45,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:41:45,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 10:41:45,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:41:45,423 INFO L87 Difference]: Start difference. First operand 986 states and 1063 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) [2021-11-06 10:41:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:41:45,835 INFO L93 Difference]: Finished difference Result 1297 states and 1412 transitions. [2021-11-06 10:41:45,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 10:41:45,835 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 [2021-11-06 10:41:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:41:45,836 INFO L225 Difference]: With dead ends: 1297 [2021-11-06 10:41:45,836 INFO L226 Difference]: Without dead ends: 980 [2021-11-06 10:41:45,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:41:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2021-11-06 10:41:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 980. [2021-11-06 10:41:45,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 972 states have (on average 1.0771604938271604) internal successors, (1047), 979 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:41:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1047 transitions. [2021-11-06 10:41:45,895 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1047 transitions. Word has length 92 [2021-11-06 10:41:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:41:45,895 INFO L470 AbstractCegarLoop]: Abstraction has 980 states and 1047 transitions. [2021-11-06 10:41:45,895 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) [2021-11-06 10:41:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1047 transitions. [2021-11-06 10:41:45,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-06 10:41:45,895 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:41:45,896 INFO L513 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] [2021-11-06 10:41:45,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-06 10:41:45,896 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:41:45,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:41:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2096361414, now seen corresponding path program 1 times [2021-11-06 10:41:45,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:41:45,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76140088] [2021-11-06 10:41:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:41:45,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:41:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:41:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:41:48,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:41:48,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76140088] [2021-11-06 10:41:48,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76140088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:41:48,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:41:48,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-06 10:41:48,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835543270] [2021-11-06 10:41:48,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-06 10:41:48,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:41:48,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-06 10:41:48,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-06 10:41:48,008 INFO L87 Difference]: Start difference. First operand 980 states and 1047 transitions. Second operand has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:08,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:42:08,774 INFO L93 Difference]: Finished difference Result 1761 states and 1860 transitions. [2021-11-06 10:42:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-06 10:42:08,775 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-06 10:42:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:42:08,776 INFO L225 Difference]: With dead ends: 1761 [2021-11-06 10:42:08,776 INFO L226 Difference]: Without dead ends: 1615 [2021-11-06 10:42:08,778 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=358, Invalid=1202, Unknown=0, NotChecked=0, Total=1560 [2021-11-06 10:42:08,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1615 states. [2021-11-06 10:42:08,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1615 to 1093. [2021-11-06 10:42:08,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 1085 states have (on average 1.071889400921659) internal successors, (1163), 1092 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:08,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1163 transitions. [2021-11-06 10:42:08,845 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1163 transitions. Word has length 96 [2021-11-06 10:42:08,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:42:08,845 INFO L470 AbstractCegarLoop]: Abstraction has 1093 states and 1163 transitions. [2021-11-06 10:42:08,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:08,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1163 transitions. [2021-11-06 10:42:08,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-06 10:42:08,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:42:08,847 INFO L513 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, 1] [2021-11-06 10:42:08,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-06 10:42:08,847 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:42:08,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:42:08,847 INFO L85 PathProgramCache]: Analyzing trace with hash -750734320, now seen corresponding path program 1 times [2021-11-06 10:42:08,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:42:08,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920098995] [2021-11-06 10:42:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:42:08,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:42:08,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:42:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:42:09,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:42:09,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920098995] [2021-11-06 10:42:09,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920098995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:42:09,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:42:09,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:42:09,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495761592] [2021-11-06 10:42:09,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:42:09,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:42:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:42:09,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:42:09,017 INFO L87 Difference]: Start difference. First operand 1093 states and 1163 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:42:09,171 INFO L93 Difference]: Finished difference Result 1498 states and 1596 transitions. [2021-11-06 10:42:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:42:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2021-11-06 10:42:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:42:09,173 INFO L225 Difference]: With dead ends: 1498 [2021-11-06 10:42:09,173 INFO L226 Difference]: Without dead ends: 1183 [2021-11-06 10:42:09,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:42:09,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2021-11-06 10:42:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1089. [2021-11-06 10:42:09,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 1081 states have (on average 1.0693802035152637) internal successors, (1156), 1088 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1156 transitions. [2021-11-06 10:42:09,239 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1156 transitions. Word has length 98 [2021-11-06 10:42:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:42:09,239 INFO L470 AbstractCegarLoop]: Abstraction has 1089 states and 1156 transitions. [2021-11-06 10:42:09,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1156 transitions. [2021-11-06 10:42:09,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-06 10:42:09,240 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:42:09,240 INFO L513 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, 1, 1] [2021-11-06 10:42:09,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-06 10:42:09,240 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:42:09,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:42:09,241 INFO L85 PathProgramCache]: Analyzing trace with hash -780400185, now seen corresponding path program 1 times [2021-11-06 10:42:09,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:42:09,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160784963] [2021-11-06 10:42:09,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:42:09,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:42:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:42:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:42:09,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:42:09,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160784963] [2021-11-06 10:42:09,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160784963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:42:09,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:42:09,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 10:42:09,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870052599] [2021-11-06 10:42:09,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 10:42:09,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:42:09,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 10:42:09,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 10:42:09,485 INFO L87 Difference]: Start difference. First operand 1089 states and 1156 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:42:09,747 INFO L93 Difference]: Finished difference Result 1180 states and 1252 transitions. [2021-11-06 10:42:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 10:42:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-06 10:42:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:42:09,748 INFO L225 Difference]: With dead ends: 1180 [2021-11-06 10:42:09,748 INFO L226 Difference]: Without dead ends: 1178 [2021-11-06 10:42:09,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 10:42:09,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2021-11-06 10:42:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1095. [2021-11-06 10:42:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1087 states have (on average 1.0671573137074517) internal successors, (1160), 1094 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1160 transitions. [2021-11-06 10:42:09,814 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1160 transitions. Word has length 99 [2021-11-06 10:42:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:42:09,814 INFO L470 AbstractCegarLoop]: Abstraction has 1095 states and 1160 transitions. [2021-11-06 10:42:09,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1160 transitions. [2021-11-06 10:42:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-06 10:42:09,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:42:09,815 INFO L513 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, 1, 1] [2021-11-06 10:42:09,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-06 10:42:09,815 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:42:09,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:42:09,815 INFO L85 PathProgramCache]: Analyzing trace with hash 180975425, now seen corresponding path program 1 times [2021-11-06 10:42:09,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:42:09,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121394686] [2021-11-06 10:42:09,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:42:09,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:42:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:42:12,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:42:12,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:42:12,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121394686] [2021-11-06 10:42:12,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121394686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:42:12,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:42:12,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-06 10:42:12,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331823652] [2021-11-06 10:42:12,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-06 10:42:12,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:42:12,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-06 10:42:12,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2021-11-06 10:42:12,447 INFO L87 Difference]: Start difference. First operand 1095 states and 1160 transitions. Second operand has 20 states, 20 states have (on average 4.95) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:41,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:42:41,499 INFO L93 Difference]: Finished difference Result 2443 states and 2572 transitions. [2021-11-06 10:42:41,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-06 10:42:41,500 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.95) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-06 10:42:41,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:42:41,502 INFO L225 Difference]: With dead ends: 2443 [2021-11-06 10:42:41,502 INFO L226 Difference]: Without dead ends: 2118 [2021-11-06 10:42:41,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=777, Invalid=2085, Unknown=0, NotChecked=0, Total=2862 [2021-11-06 10:42:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2021-11-06 10:42:41,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1185. [2021-11-06 10:42:41,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1177 states have (on average 1.064570943075616) internal successors, (1253), 1184 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1253 transitions. [2021-11-06 10:42:41,579 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1253 transitions. Word has length 99 [2021-11-06 10:42:41,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:42:41,579 INFO L470 AbstractCegarLoop]: Abstraction has 1185 states and 1253 transitions. [2021-11-06 10:42:41,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.95) internal successors, (99), 20 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:42:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1253 transitions. [2021-11-06 10:42:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-06 10:42:41,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:42:41,580 INFO L513 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, 1, 1] [2021-11-06 10:42:41,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-06 10:42:41,581 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:42:41,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:42:41,581 INFO L85 PathProgramCache]: Analyzing trace with hash 353780723, now seen corresponding path program 1 times [2021-11-06 10:42:41,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:42:41,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097370908] [2021-11-06 10:42:41,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:42:41,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:42:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:42:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:42:44,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:42:44,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097370908] [2021-11-06 10:42:44,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097370908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:42:44,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:42:44,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-06 10:42:44,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726858600] [2021-11-06 10:42:44,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-06 10:42:44,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:42:44,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-06 10:42:44,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-11-06 10:42:44,350 INFO L87 Difference]: Start difference. First operand 1185 states and 1253 transitions. Second operand has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:43:09,240 INFO L93 Difference]: Finished difference Result 2395 states and 2537 transitions. [2021-11-06 10:43:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-06 10:43:09,241 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-06 10:43:09,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:43:09,243 INFO L225 Difference]: With dead ends: 2395 [2021-11-06 10:43:09,243 INFO L226 Difference]: Without dead ends: 1984 [2021-11-06 10:43:09,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=458, Invalid=1348, Unknown=0, NotChecked=0, Total=1806 [2021-11-06 10:43:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2021-11-06 10:43:09,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1123. [2021-11-06 10:43:09,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 1115 states have (on average 1.0690582959641255) internal successors, (1192), 1122 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:09,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1192 transitions. [2021-11-06 10:43:09,319 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1192 transitions. Word has length 99 [2021-11-06 10:43:09,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:43:09,319 INFO L470 AbstractCegarLoop]: Abstraction has 1123 states and 1192 transitions. [2021-11-06 10:43:09,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.2105263157894735) internal successors, (99), 19 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:09,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1192 transitions. [2021-11-06 10:43:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-06 10:43:09,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:43:09,320 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:43:09,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-06 10:43:09,320 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:43:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:43:09,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1745323847, now seen corresponding path program 1 times [2021-11-06 10:43:09,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:43:09,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300706509] [2021-11-06 10:43:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:43:09,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:43:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:43:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:43:09,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:43:09,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300706509] [2021-11-06 10:43:09,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300706509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:43:09,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:43:09,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-06 10:43:09,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041845725] [2021-11-06 10:43:09,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-06 10:43:09,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:43:09,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-06 10:43:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-06 10:43:09,910 INFO L87 Difference]: Start difference. First operand 1123 states and 1192 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:43:21,463 INFO L93 Difference]: Finished difference Result 1582 states and 1684 transitions. [2021-11-06 10:43:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-06 10:43:21,463 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2021-11-06 10:43:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:43:21,464 INFO L225 Difference]: With dead ends: 1582 [2021-11-06 10:43:21,464 INFO L226 Difference]: Without dead ends: 1309 [2021-11-06 10:43:21,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2021-11-06 10:43:21,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-11-06 10:43:21,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1152. [2021-11-06 10:43:21,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 1145 states have (on average 1.0672489082969432) internal successors, (1222), 1151 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1222 transitions. [2021-11-06 10:43:21,549 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1222 transitions. Word has length 106 [2021-11-06 10:43:21,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:43:21,549 INFO L470 AbstractCegarLoop]: Abstraction has 1152 states and 1222 transitions. [2021-11-06 10:43:21,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1222 transitions. [2021-11-06 10:43:21,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-06 10:43:21,550 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:43:21,550 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:43:21,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-06 10:43:21,551 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:43:21,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:43:21,551 INFO L85 PathProgramCache]: Analyzing trace with hash -568133830, now seen corresponding path program 1 times [2021-11-06 10:43:21,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:43:21,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836986605] [2021-11-06 10:43:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:43:21,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:43:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:43:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:43:22,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:43:22,213 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836986605] [2021-11-06 10:43:22,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836986605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:43:22,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:43:22,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 10:43:22,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704568025] [2021-11-06 10:43:22,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 10:43:22,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:43:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 10:43:22,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:43:22,214 INFO L87 Difference]: Start difference. First operand 1152 states and 1222 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:43:30,246 INFO L93 Difference]: Finished difference Result 1396 states and 1475 transitions. [2021-11-06 10:43:30,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 10:43:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2021-11-06 10:43:30,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:43:30,252 INFO L225 Difference]: With dead ends: 1396 [2021-11-06 10:43:30,252 INFO L226 Difference]: Without dead ends: 1385 [2021-11-06 10:43:30,252 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-06 10:43:30,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2021-11-06 10:43:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1360. [2021-11-06 10:43:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1353 states have (on average 1.0672579453067257) internal successors, (1444), 1359 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1444 transitions. [2021-11-06 10:43:30,337 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1444 transitions. Word has length 117 [2021-11-06 10:43:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:43:30,337 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 1444 transitions. [2021-11-06 10:43:30,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:30,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1444 transitions. [2021-11-06 10:43:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-06 10:43:30,338 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:43:30,338 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:43:30,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-06 10:43:30,338 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:43:30,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:43:30,338 INFO L85 PathProgramCache]: Analyzing trace with hash 15816156, now seen corresponding path program 1 times [2021-11-06 10:43:30,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:43:30,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151881115] [2021-11-06 10:43:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:43:30,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:43:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:43:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:43:30,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:43:30,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151881115] [2021-11-06 10:43:30,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151881115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 10:43:30,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 10:43:30,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 10:43:30,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249759449] [2021-11-06 10:43:30,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 10:43:30,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 10:43:30,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 10:43:30,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 10:43:30,879 INFO L87 Difference]: Start difference. First operand 1360 states and 1444 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:39,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 10:43:39,781 INFO L93 Difference]: Finished difference Result 1405 states and 1487 transitions. [2021-11-06 10:43:39,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 10:43:39,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-11-06 10:43:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 10:43:39,783 INFO L225 Difference]: With dead ends: 1405 [2021-11-06 10:43:39,783 INFO L226 Difference]: Without dead ends: 1277 [2021-11-06 10:43:39,783 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 10:43:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2021-11-06 10:43:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1262. [2021-11-06 10:43:39,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1262 states, 1255 states have (on average 1.0693227091633466) internal successors, (1342), 1261 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:39,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1262 states to 1262 states and 1342 transitions. [2021-11-06 10:43:39,866 INFO L78 Accepts]: Start accepts. Automaton has 1262 states and 1342 transitions. Word has length 119 [2021-11-06 10:43:39,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 10:43:39,867 INFO L470 AbstractCegarLoop]: Abstraction has 1262 states and 1342 transitions. [2021-11-06 10:43:39,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 10:43:39,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1262 states and 1342 transitions. [2021-11-06 10:43:39,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-06 10:43:39,868 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 10:43:39,868 INFO L513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 10:43:39,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-06 10:43:39,868 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-06 10:43:39,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 10:43:39,868 INFO L85 PathProgramCache]: Analyzing trace with hash 440327424, now seen corresponding path program 1 times [2021-11-06 10:43:39,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 10:43:39,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429564200] [2021-11-06 10:43:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:43:39,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 10:43:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:43:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 10:43:44,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 10:43:44,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429564200] [2021-11-06 10:43:44,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429564200] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 10:43:44,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444098541] [2021-11-06 10:43:44,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 10:43:44,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 10:43:44,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 10:43:44,527 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) [2021-11-06 10:43:44,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 10:43:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 10:43:45,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 3226 conjuncts, 200 conjunts are in the unsatisfiable core [2021-11-06 10:43:45,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 10:43:45,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-06 10:43:46,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2021-11-06 10:43:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 10:43:46,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2021-11-06 10:43:46,975 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 [2021-11-06 10:43:47,332 INFO L354 Elim1Store]: treesize reduction 24, result has 48.9 percent of original size [2021-11-06 10:43:47,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 64 [2021-11-06 10:43:49,136 INFO L354 Elim1Store]: treesize reduction 176, result has 20.4 percent of original size [2021-11-06 10:43:49,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 159 treesize of output 193 [2021-11-06 10:43:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 10:43:49,551 INFO L354 Elim1Store]: treesize reduction 109, result has 9.9 percent of original size [2021-11-06 10:43:49,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 81 treesize of output 61 [2021-11-06 10:43:50,478 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-06 10:43:50,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 150 treesize of output 90 [2021-11-06 10:43:50,608 INFO L354 Elim1Store]: treesize reduction 130, result has 0.8 percent of original size [2021-11-06 10:43:50,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 186 treesize of output 120 [2021-11-06 10:43:51,568 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-06 10:43:51,569 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 204 treesize of output 204 [2021-11-06 10:43:53,487 INFO L354 Elim1Store]: treesize reduction 96, result has 41.8 percent of original size [2021-11-06 10:43:53,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 257 treesize of output 240 Killed by 15