./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_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 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:45:51,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:45:51,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:45:51,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:45:51,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:45:51,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:45:51,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:45:51,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:45:51,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:45:51,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:45:51,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:45:51,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:45:51,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:45:51,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:45:51,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:45:51,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:45:51,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:45:51,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:45:51,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:45:51,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:45:51,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:45:51,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:45:51,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:45:51,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:45:51,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:45:51,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:45:51,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:45:51,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:45:51,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:45:51,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:45:51,751 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:45:51,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:45:51,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:45:51,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:45:51,754 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:45:51,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:45:51,754 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:45:51,754 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:45:51,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:45:51,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:45:51,756 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:45:51,757 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:45:51,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:45:51,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:45:51,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:45:51,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:45:51,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:45:51,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:45:51,795 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:45:51,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:45:51,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:45:51,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:45:51,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:45:51,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:45:51,796 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:45:51,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:45:51,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:45:51,798 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:45:51,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:45:51,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:45:51,799 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90640eabcf61bf9b6c4e01fcd2a39b8b829676407f71504872cd65ce1f895a [2021-11-05 12:45:52,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:45:52,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:45:52,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:45:52,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:45:52,079 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:45:52,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2021-11-05 12:45:52,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2174e0cac/64545434a6f14054a79c983b6a37cd95/FLAG0b25b1fd5 [2021-11-05 12:45:52,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:45:52,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_be64_harness.i [2021-11-05 12:45:52,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2174e0cac/64545434a6f14054a79c983b6a37cd95/FLAG0b25b1fd5 [2021-11-05 12:45:52,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2174e0cac/64545434a6f14054a79c983b6a37cd95 [2021-11-05 12:45:52,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:45:52,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:45:52,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:45:52,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:45:52,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:45:52,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:45:52" (1/1) ... [2021-11-05 12:45:52,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3965d732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:52, skipping insertion in model container [2021-11-05 12:45:52,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:45:52" (1/1) ... [2021-11-05 12:45:52,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:45:52,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:45:53,199 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_read_be64_harness.i[4499,4512] [2021-11-05 12:45:53,204 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_read_be64_harness.i[4559,4572] [2021-11-05 12:45:53,222 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:45:53,225 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:45:53,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,745 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,746 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,755 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,756 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:53,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:45:53,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:45:53,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:45:53,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:45:53,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:45:53,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:45:53,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:45:53,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:45:53,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:45:53,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:45:54,075 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:45:54,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:45:54,229 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:45:54,237 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_read_be64_harness.i[4499,4512] [2021-11-05 12:45:54,238 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_read_be64_harness.i[4559,4572] [2021-11-05 12:45:54,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:45:54,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:45:54,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,285 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,307 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:45:54,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:45:54,308 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:45:54,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:45:54,309 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:45:54,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:45:54,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:45:54,310 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:45:54,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:45:54,311 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:45:54,327 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:45:54,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,375 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:45:54,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:45:54,592 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:45:54,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54 WrapperNode [2021-11-05 12:45:54,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:45:54,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:45:54,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:45:54,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:45:54,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:45:54,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:45:54,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:45:54,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:45:54,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:45:54,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:45:54,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:45:54,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:45:54,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (1/1) ... [2021-11-05 12:45:54,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:45:54,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:45:54,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 12:45:54,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 12:45:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure htonl [2021-11-05 12:45:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:45:54,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:45:54,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:45:54,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:45:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 12:45:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 12:45:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:45:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:45:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:45:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:45:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-11-05 12:45:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:46:02,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:46:02,701 INFO L299 CfgBuilder]: Removed 128 assume(true) statements. [2021-11-05 12:46:02,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:46:02 BoogieIcfgContainer [2021-11-05 12:46:02,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:46:02,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:46:02,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:46:02,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:46:02,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:45:52" (1/3) ... [2021-11-05 12:46:02,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765047dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:46:02, skipping insertion in model container [2021-11-05 12:46:02,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:45:54" (2/3) ... [2021-11-05 12:46:02,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765047dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:46:02, skipping insertion in model container [2021-11-05 12:46:02,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:46:02" (3/3) ... [2021-11-05 12:46:02,708 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_be64_harness.i [2021-11-05 12:46:02,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:46:02,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-05 12:46:02,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:46:02,742 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 12:46:02,742 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-05 12:46:02,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 244 states, 229 states have (on average 1.4759825327510918) internal successors, (338), 243 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 12:46:02,757 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:02,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:02,758 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)] === [2021-11-05 12:46:02,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:02,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1384509862, now seen corresponding path program 1 times [2021-11-05 12:46:02,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:02,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610776768] [2021-11-05 12:46:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:02,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:03,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:03,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610776768] [2021-11-05 12:46:03,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610776768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:03,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:03,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:46:03,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936039639] [2021-11-05 12:46:03,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:03,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:46:03,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:03,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:46:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:46:03,289 INFO L87 Difference]: Start difference. First operand has 244 states, 229 states have (on average 1.4759825327510918) internal successors, (338), 243 states have internal predecessors, (338), 0 states have call successors, (0), 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 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:03,315 INFO L93 Difference]: Finished difference Result 483 states and 669 transitions. [2021-11-05 12:46:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:46:03,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-05 12:46:03,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:03,324 INFO L225 Difference]: With dead ends: 483 [2021-11-05 12:46:03,324 INFO L226 Difference]: Without dead ends: 239 [2021-11-05 12:46:03,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:46:03,329 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:03,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.77ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:46:03,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-05 12:46:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-05 12:46:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.36) internal successors, (306), 238 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:03,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 306 transitions. [2021-11-05 12:46:03,368 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 306 transitions. Word has length 57 [2021-11-05 12:46:03,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:03,368 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 306 transitions. [2021-11-05 12:46:03,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:03,369 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 306 transitions. [2021-11-05 12:46:03,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-05 12:46:03,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:03,370 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:03,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:46:03,370 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)] === [2021-11-05 12:46:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash -110980262, now seen corresponding path program 1 times [2021-11-05 12:46:03,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:03,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950566342] [2021-11-05 12:46:03,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:03,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:03,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:03,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950566342] [2021-11-05 12:46:03,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950566342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:03,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:03,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:46:03,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171872614] [2021-11-05 12:46:03,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:03,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:46:03,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:46:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:46:03,678 INFO L87 Difference]: Start difference. First operand 239 states and 306 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:03,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:03,997 INFO L93 Difference]: Finished difference Result 453 states and 580 transitions. [2021-11-05 12:46:03,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:46:03,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-05 12:46:03,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:03,999 INFO L225 Difference]: With dead ends: 453 [2021-11-05 12:46:03,999 INFO L226 Difference]: Without dead ends: 239 [2021-11-05 12:46:04,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.85ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:46:04,000 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 285 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 238.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.73ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 283.58ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:04,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 427 Invalid, 68 Unknown, 0 Unchecked, 6.73ms Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 283.58ms Time] [2021-11-05 12:46:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-05 12:46:04,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-05 12:46:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3466666666666667) internal successors, (303), 238 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 303 transitions. [2021-11-05 12:46:04,011 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 303 transitions. Word has length 57 [2021-11-05 12:46:04,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:04,023 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 303 transitions. [2021-11-05 12:46:04,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:04,024 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 303 transitions. [2021-11-05 12:46:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-05 12:46:04,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:04,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:04,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:46:04,025 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)] === [2021-11-05 12:46:04,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:04,025 INFO L85 PathProgramCache]: Analyzing trace with hash -452004592, now seen corresponding path program 1 times [2021-11-05 12:46:04,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:04,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656573766] [2021-11-05 12:46:04,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:04,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:04,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:04,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656573766] [2021-11-05 12:46:04,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656573766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:04,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:04,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:46:04,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745498957] [2021-11-05 12:46:04,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:04,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:46:04,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:04,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:46:04,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:46:04,370 INFO L87 Difference]: Start difference. First operand 239 states and 303 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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) [2021-11-05 12:46:04,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:04,708 INFO L93 Difference]: Finished difference Result 407 states and 516 transitions. [2021-11-05 12:46:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:46:04,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 [2021-11-05 12:46:04,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:04,710 INFO L225 Difference]: With dead ends: 407 [2021-11-05 12:46:04,710 INFO L226 Difference]: Without dead ends: 239 [2021-11-05 12:46:04,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 135.06ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:46:04,713 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 621 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 199.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.00ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 228.19ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:04,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [621 Valid, 473 Invalid, 71 Unknown, 0 Unchecked, 4.00ms Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 228.19ms Time] [2021-11-05 12:46:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-05 12:46:04,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-05 12:46:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3377777777777777) internal successors, (301), 238 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 301 transitions. [2021-11-05 12:46:04,745 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 301 transitions. Word has length 61 [2021-11-05 12:46:04,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:04,745 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 301 transitions. [2021-11-05 12:46:04,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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) [2021-11-05 12:46:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 301 transitions. [2021-11-05 12:46:04,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-05 12:46:04,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:04,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:04,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:46:04,750 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)] === [2021-11-05 12:46:04,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:04,751 INFO L85 PathProgramCache]: Analyzing trace with hash 263418325, now seen corresponding path program 1 times [2021-11-05 12:46:04,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:04,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946539303] [2021-11-05 12:46:04,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:04,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:05,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:05,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946539303] [2021-11-05 12:46:05,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946539303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:05,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:05,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:46:05,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675257079] [2021-11-05 12:46:05,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:05,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:46:05,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:05,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:46:05,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:46:05,071 INFO L87 Difference]: Start difference. First operand 239 states and 301 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:05,519 INFO L93 Difference]: Finished difference Result 392 states and 493 transitions. [2021-11-05 12:46:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:46:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-05 12:46:05,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:05,521 INFO L225 Difference]: With dead ends: 392 [2021-11-05 12:46:05,521 INFO L226 Difference]: Without dead ends: 239 [2021-11-05 12:46:05,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 248.63ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:46:05,522 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 832 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.60ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 257.16ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:05,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [832 Valid, 532 Invalid, 79 Unknown, 0 Unchecked, 3.60ms Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 257.16ms Time] [2021-11-05 12:46:05,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-05 12:46:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-05 12:46:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 238 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 298 transitions. [2021-11-05 12:46:05,530 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 298 transitions. Word has length 63 [2021-11-05 12:46:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:05,530 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 298 transitions. [2021-11-05 12:46:05,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 298 transitions. [2021-11-05 12:46:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-05 12:46:05,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:05,532 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:05,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 12:46:05,532 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)] === [2021-11-05 12:46:05,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1353991184, now seen corresponding path program 1 times [2021-11-05 12:46:05,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:05,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74744891] [2021-11-05 12:46:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:05,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:05,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:05,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74744891] [2021-11-05 12:46:05,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74744891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:05,867 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:05,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:46:05,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707011178] [2021-11-05 12:46:05,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:05,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:46:05,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:05,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:46:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:46:05,868 INFO L87 Difference]: Start difference. First operand 239 states and 298 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:06,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:06,537 INFO L93 Difference]: Finished difference Result 375 states and 464 transitions. [2021-11-05 12:46:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:46:06,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-05 12:46:06,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:06,538 INFO L225 Difference]: With dead ends: 375 [2021-11-05 12:46:06,538 INFO L226 Difference]: Without dead ends: 239 [2021-11-05 12:46:06,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 398.04ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:46:06,540 INFO L933 BasicCegarLoop]: 267 mSDtfsCounter, 1023 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 330.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.91ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 372.47ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:06,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1023 Valid, 606 Invalid, 94 Unknown, 0 Unchecked, 3.91ms Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 372.47ms Time] [2021-11-05 12:46:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-05 12:46:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-05 12:46:06,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.32) internal successors, (297), 238 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 297 transitions. [2021-11-05 12:46:06,546 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 297 transitions. Word has length 65 [2021-11-05 12:46:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:06,546 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 297 transitions. [2021-11-05 12:46:06,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 297 transitions. [2021-11-05 12:46:06,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-05 12:46:06,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:06,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:06,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 12:46:06,548 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)] === [2021-11-05 12:46:06,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:06,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1880797653, now seen corresponding path program 1 times [2021-11-05 12:46:06,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:06,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956558518] [2021-11-05 12:46:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:06,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:07,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:07,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:07,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956558518] [2021-11-05 12:46:07,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956558518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:07,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:07,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:46:07,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808425383] [2021-11-05 12:46:07,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:07,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:46:07,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:07,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:46:07,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:46:07,074 INFO L87 Difference]: Start difference. First operand 239 states and 297 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:08,211 INFO L93 Difference]: Finished difference Result 445 states and 537 transitions. [2021-11-05 12:46:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:46:08,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-11-05 12:46:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:08,213 INFO L225 Difference]: With dead ends: 445 [2021-11-05 12:46:08,213 INFO L226 Difference]: Without dead ends: 429 [2021-11-05 12:46:08,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 240.48ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:46:08,214 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 341 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 892.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.14ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 955.54ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:08,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [341 Valid, 1198 Invalid, 379 Unknown, 0 Unchecked, 7.14ms Time], IncrementalHoareTripleChecker [78 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 955.54ms Time] [2021-11-05 12:46:08,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-11-05 12:46:08,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 259. [2021-11-05 12:46:08,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 245 states have (on average 1.2897959183673469) internal successors, (316), 258 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 316 transitions. [2021-11-05 12:46:08,221 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 316 transitions. Word has length 67 [2021-11-05 12:46:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:08,222 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 316 transitions. [2021-11-05 12:46:08,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 316 transitions. [2021-11-05 12:46:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 12:46:08,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:08,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:08,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 12:46:08,223 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:08,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1960839459, now seen corresponding path program 1 times [2021-11-05 12:46:08,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:08,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53535473] [2021-11-05 12:46:08,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:08,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:08,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:08,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53535473] [2021-11-05 12:46:08,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53535473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:08,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:08,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 12:46:08,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408495174] [2021-11-05 12:46:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:08,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:46:08,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:46:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:46:08,695 INFO L87 Difference]: Start difference. First operand 259 states and 316 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:08,873 INFO L93 Difference]: Finished difference Result 478 states and 585 transitions. [2021-11-05 12:46:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:46:08,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-11-05 12:46:08,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:08,875 INFO L225 Difference]: With dead ends: 478 [2021-11-05 12:46:08,875 INFO L226 Difference]: Without dead ends: 260 [2021-11-05 12:46:08,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:46:08,876 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 0 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 171.06ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:08,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 581 Invalid, 10 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 171.06ms Time] [2021-11-05 12:46:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-05 12:46:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-11-05 12:46:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 246 states have (on average 1.2886178861788617) internal successors, (317), 259 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 317 transitions. [2021-11-05 12:46:08,890 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 317 transitions. Word has length 71 [2021-11-05 12:46:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:08,890 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 317 transitions. [2021-11-05 12:46:08,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:08,891 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 317 transitions. [2021-11-05 12:46:08,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-05 12:46:08,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:08,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:08,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 12:46:08,893 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:08,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1263514824, now seen corresponding path program 1 times [2021-11-05 12:46:08,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:08,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122069740] [2021-11-05 12:46:08,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:08,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:09,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:09,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:09,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122069740] [2021-11-05 12:46:09,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122069740] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:09,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843894035] [2021-11-05 12:46:09,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:09,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:09,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:46:09,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:46:09,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:46:10,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:10,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-05 12:46:10,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:46:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:10,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:46:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:46:10,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843894035] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:10,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-05 12:46:10,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 8 [2021-11-05 12:46:10,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667235594] [2021-11-05 12:46:10,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:10,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:46:10,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:46:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:46:10,738 INFO L87 Difference]: Start difference. First operand 260 states and 317 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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) [2021-11-05 12:46:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:11,018 INFO L93 Difference]: Finished difference Result 585 states and 711 transitions. [2021-11-05 12:46:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:46:11,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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 [2021-11-05 12:46:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:11,020 INFO L225 Difference]: With dead ends: 585 [2021-11-05 12:46:11,020 INFO L226 Difference]: Without dead ends: 368 [2021-11-05 12:46:11,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 158.08ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:46:11,021 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 245 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.86ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 268.35ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:11,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 715 Invalid, 26 Unknown, 0 Unchecked, 0.86ms Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 268.35ms Time] [2021-11-05 12:46:11,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-11-05 12:46:11,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 263. [2021-11-05 12:46:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 249 states have (on average 1.2891566265060241) internal successors, (321), 262 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 321 transitions. [2021-11-05 12:46:11,028 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 321 transitions. Word has length 72 [2021-11-05 12:46:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:11,028 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 321 transitions. [2021-11-05 12:46:11,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 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) [2021-11-05 12:46:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 321 transitions. [2021-11-05 12:46:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 12:46:11,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:11,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:11,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:46:11,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:11,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1069207233, now seen corresponding path program 1 times [2021-11-05 12:46:11,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:11,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680089024] [2021-11-05 12:46:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:11,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:11,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:11,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680089024] [2021-11-05 12:46:11,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680089024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:11,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:11,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:46:11,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288329541] [2021-11-05 12:46:11,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:11,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:46:11,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:11,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:46:11,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:46:11,912 INFO L87 Difference]: Start difference. First operand 263 states and 321 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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) [2021-11-05 12:46:12,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:12,420 INFO L93 Difference]: Finished difference Result 519 states and 634 transitions. [2021-11-05 12:46:12,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:46:12,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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 [2021-11-05 12:46:12,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:12,422 INFO L225 Difference]: With dead ends: 519 [2021-11-05 12:46:12,422 INFO L226 Difference]: Without dead ends: 263 [2021-11-05 12:46:12,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 469.85ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:46:12,423 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 179 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 225.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241.71ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:12,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1995 Invalid, 76 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 241.71ms Time] [2021-11-05 12:46:12,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-05 12:46:12,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2021-11-05 12:46:12,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 249 states have (on average 1.285140562248996) internal successors, (320), 262 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:12,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 320 transitions. [2021-11-05 12:46:12,428 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 320 transitions. Word has length 73 [2021-11-05 12:46:12,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:12,429 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 320 transitions. [2021-11-05 12:46:12,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 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) [2021-11-05 12:46:12,429 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 320 transitions. [2021-11-05 12:46:12,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-05 12:46:12,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:12,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:12,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 12:46:12,429 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:12,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:12,430 INFO L85 PathProgramCache]: Analyzing trace with hash 701805951, now seen corresponding path program 1 times [2021-11-05 12:46:12,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:12,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104565197] [2021-11-05 12:46:12,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:12,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:12,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 12:46:12,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:12,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104565197] [2021-11-05 12:46:12,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104565197] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:12,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422418250] [2021-11-05 12:46:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:12,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:46:12,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:46:12,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 12:46:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:13,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-05 12:46:13,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:46:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:14,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:46:14,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422418250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:14,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 12:46:14,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2021-11-05 12:46:14,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96021296] [2021-11-05 12:46:14,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:14,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:46:14,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:46:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:46:14,268 INFO L87 Difference]: Start difference. First operand 263 states and 320 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:16,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:18,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:20,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:20,040 INFO L93 Difference]: Finished difference Result 544 states and 663 transitions. [2021-11-05 12:46:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-05 12:46:20,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-05 12:46:20,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:20,043 INFO L225 Difference]: With dead ends: 544 [2021-11-05 12:46:20,043 INFO L226 Difference]: Without dead ends: 305 [2021-11-05 12:46:20,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 612.40ms TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:46:20,044 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 376 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5113.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.73ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5379.90ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:20,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [376 Valid, 826 Invalid, 306 Unknown, 0 Unchecked, 5.73ms Time], IncrementalHoareTripleChecker [9 Valid, 295 Invalid, 2 Unknown, 0 Unchecked, 5379.90ms Time] [2021-11-05 12:46:20,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-05 12:46:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 263. [2021-11-05 12:46:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 249 states have (on average 1.2811244979919678) internal successors, (319), 262 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:20,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 319 transitions. [2021-11-05 12:46:20,050 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 319 transitions. Word has length 76 [2021-11-05 12:46:20,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:20,050 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 319 transitions. [2021-11-05 12:46:20,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:20,051 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 319 transitions. [2021-11-05 12:46:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 12:46:20,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:20,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:20,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-05 12:46:20,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-05 12:46:20,263 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:20,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1153375799, now seen corresponding path program 1 times [2021-11-05 12:46:20,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:20,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379511765] [2021-11-05 12:46:20,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:20,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 12:46:20,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:20,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379511765] [2021-11-05 12:46:20,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379511765] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:20,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061403723] [2021-11-05 12:46:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:20,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:20,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:46:20,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:46:20,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 12:46:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:21,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-05 12:46:21,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:46:21,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:21,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:46:21,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061403723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:21,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 12:46:21,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2021-11-05 12:46:21,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287765749] [2021-11-05 12:46:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:21,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:46:21,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:21,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:46:21,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:46:21,852 INFO L87 Difference]: Start difference. First operand 263 states and 319 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2021-11-05 12:46:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:23,057 INFO L93 Difference]: Finished difference Result 624 states and 742 transitions. [2021-11-05 12:46:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:46:23,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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 [2021-11-05 12:46:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:23,059 INFO L225 Difference]: With dead ends: 624 [2021-11-05 12:46:23,059 INFO L226 Difference]: Without dead ends: 369 [2021-11-05 12:46:23,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 308.25ms TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:46:23,060 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 193 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 983.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.41ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1043.36ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:23,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 1702 Invalid, 453 Unknown, 0 Unchecked, 4.41ms Time], IncrementalHoareTripleChecker [63 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1043.36ms Time] [2021-11-05 12:46:23,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-11-05 12:46:23,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 263. [2021-11-05 12:46:23,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 249 states have (on average 1.2650602409638554) internal successors, (315), 262 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:23,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 315 transitions. [2021-11-05 12:46:23,067 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 315 transitions. Word has length 80 [2021-11-05 12:46:23,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:23,068 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 315 transitions. [2021-11-05 12:46:23,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 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) [2021-11-05 12:46:23,068 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 315 transitions. [2021-11-05 12:46:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:46:23,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:23,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:23,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:46:23,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:23,291 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:23,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:23,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1916250000, now seen corresponding path program 1 times [2021-11-05 12:46:23,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:23,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848276462] [2021-11-05 12:46:23,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:23,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 12:46:23,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:23,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848276462] [2021-11-05 12:46:23,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848276462] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:23,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140234302] [2021-11-05 12:46:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:23,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:23,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:46:23,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:46:23,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 12:46:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:24,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 3110 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-05 12:46:24,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:46:26,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 41 [2021-11-05 12:46:26,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-11-05 12:46:26,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2021-11-05 12:46:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:26,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:46:26,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140234302] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:26,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-05 12:46:26,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 13 [2021-11-05 12:46:26,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961837188] [2021-11-05 12:46:26,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:26,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:46:26,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:26,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:46:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-11-05 12:46:26,400 INFO L87 Difference]: Start difference. First operand 263 states and 315 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:28,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:30,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:32,686 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:42,872 INFO L93 Difference]: Finished difference Result 861 states and 1031 transitions. [2021-11-05 12:46:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-05 12:46:42,873 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:46:42,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:42,875 INFO L225 Difference]: With dead ends: 861 [2021-11-05 12:46:42,875 INFO L226 Difference]: Without dead ends: 637 [2021-11-05 12:46:42,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 5436.40ms TimeCoverageRelationStatistics Valid=324, Invalid=936, Unknown=0, NotChecked=0, Total=1260 [2021-11-05 12:46:42,876 INFO L933 BasicCegarLoop]: 558 mSDtfsCounter, 1048 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 28 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10968.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.85ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11627.89ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:42,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 2613 Invalid, 1437 Unknown, 0 Unchecked, 18.85ms Time], IncrementalHoareTripleChecker [28 Valid, 1406 Invalid, 3 Unknown, 0 Unchecked, 11627.89ms Time] [2021-11-05 12:46:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-11-05 12:46:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 280. [2021-11-05 12:46:42,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 266 states have (on average 1.2518796992481203) internal successors, (333), 279 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:42,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 333 transitions. [2021-11-05 12:46:42,885 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 333 transitions. Word has length 82 [2021-11-05 12:46:42,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:42,885 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 333 transitions. [2021-11-05 12:46:42,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 10 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 333 transitions. [2021-11-05 12:46:42,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:46:42,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:42,886 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:42,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-05 12:46:43,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:43,097 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 11 more)] === [2021-11-05 12:46:43,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash 700096274, now seen corresponding path program 1 times [2021-11-05 12:46:43,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:43,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409648106] [2021-11-05 12:46:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:43,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:43,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:43,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409648106] [2021-11-05 12:46:43,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409648106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:43,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:43,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:46:43,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246663050] [2021-11-05 12:46:43,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:43,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:46:43,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:43,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:46:43,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:46:43,334 INFO L87 Difference]: Start difference. First operand 280 states and 333 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:43,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:43,833 INFO L93 Difference]: Finished difference Result 561 states and 668 transitions. [2021-11-05 12:46:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:46:43,833 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-05 12:46:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:43,834 INFO L225 Difference]: With dead ends: 561 [2021-11-05 12:46:43,834 INFO L226 Difference]: Without dead ends: 311 [2021-11-05 12:46:43,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.33ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:46:43,835 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 46 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 422.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.68ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 455.43ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:43,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 747 Invalid, 193 Unknown, 0 Unchecked, 1.68ms Time], IncrementalHoareTripleChecker [33 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 455.43ms Time] [2021-11-05 12:46:43,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-05 12:46:43,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 275. [2021-11-05 12:46:43,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 261 states have (on average 1.2337164750957854) internal successors, (322), 274 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:43,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 322 transitions. [2021-11-05 12:46:43,843 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 322 transitions. Word has length 82 [2021-11-05 12:46:43,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:43,843 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 322 transitions. [2021-11-05 12:46:43,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 322 transitions. [2021-11-05 12:46:43,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-05 12:46:43,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:43,844 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:43,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-05 12:46:43,844 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)] === [2021-11-05 12:46:43,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1772049569, now seen corresponding path program 1 times [2021-11-05 12:46:43,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:43,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320991773] [2021-11-05 12:46:43,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:43,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:46:44,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:44,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320991773] [2021-11-05 12:46:44,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320991773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:46:44,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:46:44,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:46:44,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730516902] [2021-11-05 12:46:44,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:46:44,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:46:44,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:46:44,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:46:44,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:46:44,313 INFO L87 Difference]: Start difference. First operand 275 states and 322 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:46,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:46:47,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:46:47,051 INFO L93 Difference]: Finished difference Result 536 states and 629 transitions. [2021-11-05 12:46:47,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:46:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-05 12:46:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:46:47,052 INFO L225 Difference]: With dead ends: 536 [2021-11-05 12:46:47,052 INFO L226 Difference]: Without dead ends: 275 [2021-11-05 12:46:47,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 248.81ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:46:47,053 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 310 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2413.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.94ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2594.82ms IncrementalHoareTripleChecker+Time [2021-11-05 12:46:47,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [310 Valid, 1038 Invalid, 98 Unknown, 0 Unchecked, 1.94ms Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 1 Unknown, 0 Unchecked, 2594.82ms Time] [2021-11-05 12:46:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-05 12:46:47,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-05 12:46:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 261 states have (on average 1.2298850574712643) internal successors, (321), 274 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 321 transitions. [2021-11-05 12:46:47,060 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 321 transitions. Word has length 85 [2021-11-05 12:46:47,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:46:47,061 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 321 transitions. [2021-11-05 12:46:47,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:46:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 321 transitions. [2021-11-05 12:46:47,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 12:46:47,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:46:47,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:46:47,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-05 12:46:47,062 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)] === [2021-11-05 12:46:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:46:47,062 INFO L85 PathProgramCache]: Analyzing trace with hash 867807817, now seen corresponding path program 1 times [2021-11-05 12:46:47,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:46:47,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063945515] [2021-11-05 12:46:47,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:47,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:46:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 12:46:47,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:46:47,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063945515] [2021-11-05 12:46:47,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063945515] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:46:47,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279420472] [2021-11-05 12:46:47,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:46:47,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:46:47,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:46:47,900 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:46:47,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 12:46:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:46:48,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 3151 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-05 12:46:48,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:46:49,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:46:49,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-05 12:46:49,882 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-05 12:46:49,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 61 [2021-11-05 12:46:51,240 INFO L354 Elim1Store]: treesize reduction 144, result has 23.8 percent of original size [2021-11-05 12:46:51,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 126 treesize of output 158 [2021-11-05 12:46:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:46:51,611 INFO L354 Elim1Store]: treesize reduction 75, result has 13.8 percent of original size [2021-11-05 12:46:51,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 80 treesize of output 64 [2021-11-05 12:46:56,670 INFO L354 Elim1Store]: treesize reduction 84, result has 54.6 percent of original size [2021-11-05 12:46:56,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 150 [2021-11-05 12:47:06,476 INFO L354 Elim1Store]: treesize reduction 80, result has 42.9 percent of original size [2021-11-05 12:47:06,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 135 [2021-11-05 12:47:07,508 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-05 12:47:07,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2021-11-05 12:47:08,453 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:47:08,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2021-11-05 12:47:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:47:08,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:47:09,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 12:47:09,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279420472] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 12:47:09,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-05 12:47:09,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4, 25] total 36 [2021-11-05 12:47:09,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897887468] [2021-11-05 12:47:09,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:47:09,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-05 12:47:09,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:47:09,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-05 12:47:09,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2021-11-05 12:47:09,671 INFO L87 Difference]: Start difference. First operand 275 states and 321 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:47:11,714 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:47:13,835 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:47:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:47:18,498 INFO L93 Difference]: Finished difference Result 758 states and 891 transitions. [2021-11-05 12:47:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-05 12:47:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-05 12:47:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:47:18,500 INFO L225 Difference]: With dead ends: 758 [2021-11-05 12:47:18,500 INFO L226 Difference]: Without dead ends: 578 [2021-11-05 12:47:18,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 8323.56ms TimeCoverageRelationStatistics Valid=281, Invalid=2799, Unknown=0, NotChecked=0, Total=3080 [2021-11-05 12:47:18,501 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1155 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 227 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6899.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 1492 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.38ms SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7347.28ms IncrementalHoareTripleChecker+Time [2021-11-05 12:47:18,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 1492 Invalid, 1067 Unknown, 0 Unchecked, 10.38ms Time], IncrementalHoareTripleChecker [227 Valid, 838 Invalid, 2 Unknown, 0 Unchecked, 7347.28ms Time] [2021-11-05 12:47:18,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2021-11-05 12:47:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 282. [2021-11-05 12:47:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 268 states have (on average 1.2276119402985075) internal successors, (329), 281 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:47:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 329 transitions. [2021-11-05 12:47:18,512 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 329 transitions. Word has length 88 [2021-11-05 12:47:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:47:18,513 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 329 transitions. [2021-11-05 12:47:18,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 11 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 12:47:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 329 transitions. [2021-11-05 12:47:18,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-05 12:47:18,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:47:18,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:47:18,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-05 12:47:18,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-05 12:47:18,717 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)] === [2021-11-05 12:47:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:47:18,717 INFO L85 PathProgramCache]: Analyzing trace with hash -143309433, now seen corresponding path program 1 times [2021-11-05 12:47:18,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:47:18,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808309125] [2021-11-05 12:47:18,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:47:18,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:47:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:47:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-05 12:47:19,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:47:19,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808309125] [2021-11-05 12:47:19,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808309125] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 12:47:19,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993819137] [2021-11-05 12:47:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:47:19,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:47:19,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:47:19,360 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 12:47:19,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 12:47:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:47:20,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 122 conjunts are in the unsatisfiable core [2021-11-05 12:47:20,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:47:20,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 12:47:20,427 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 12:47:20,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-05 12:47:20,561 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 12:47:20,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-05 12:47:21,202 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:47:21,202 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 15 treesize of output 15 [2021-11-05 12:47:21,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-05 12:47:21,727 INFO L354 Elim1Store]: treesize reduction 256, result has 23.1 percent of original size [2021-11-05 12:47:21,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 87 treesize of output 139 [2021-11-05 12:47:30,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:47:30,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:47:30,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:47:30,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 44 [2021-11-05 12:47:30,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:47:30,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:47:30,412 INFO L354 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2021-11-05 12:47:30,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 51 [2021-11-05 12:47:31,484 INFO L354 Elim1Store]: treesize reduction 89, result has 13.6 percent of original size [2021-11-05 12:47:31,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 108 treesize of output 90 [2021-11-05 12:47:31,584 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-05 12:47:31,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 56 [2021-11-05 12:47:39,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-05 12:47:43,501 INFO L354 Elim1Store]: treesize reduction 427, result has 57.2 percent of original size [2021-11-05 12:47:43,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 141 treesize of output 633 [2021-11-05 12:47:46,342 INFO L354 Elim1Store]: treesize reduction 367, result has 60.8 percent of original size [2021-11-05 12:47:46,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 633 treesize of output 1148 Killed by 15