./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 39617118f1cddf1edf0da2bed0d1b7ba56db146c1be6da9375c591252f5b5d55 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:18:27,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:18:27,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:18:27,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:18:27,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:18:27,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:18:27,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:18:27,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:18:27,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:18:27,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:18:27,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:18:27,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:18:27,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:18:27,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:18:27,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:18:27,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:18:27,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:18:27,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:18:27,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:18:27,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:18:27,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:18:27,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:18:27,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:18:27,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:18:27,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:18:27,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:18:27,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:18:27,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:18:27,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:18:27,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:18:27,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:18:27,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:18:27,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:18:27,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:18:27,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:18:27,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:18:27,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:18:27,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:18:27,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:18:27,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:18:27,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:18:27,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 13:18:27,179 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:18:27,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:18:27,180 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:18:27,180 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:18:27,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:18:27,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:18:27,182 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:18:27,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:18:27,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 13:18:27,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:18:27,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:18:27,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:18:27,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:18:27,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:18:27,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:18:27,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:18:27,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:18:27,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:18:27,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:18:27,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:18:27,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:18:27,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:18:27,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:18:27,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:18:27,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39617118f1cddf1edf0da2bed0d1b7ba56db146c1be6da9375c591252f5b5d55 [2021-11-05 13:18:27,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:18:27,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:18:27,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:18:27,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:18:27,521 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:18:27,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i [2021-11-05 13:18:27,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62828c229/d85769578732471e981c2d4f3be00df3/FLAG634517c61 [2021-11-05 13:18:28,093 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:18:28,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i [2021-11-05 13:18:28,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62828c229/d85769578732471e981c2d4f3be00df3/FLAG634517c61 [2021-11-05 13:18:28,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62828c229/d85769578732471e981c2d4f3be00df3 [2021-11-05 13:18:28,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:18:28,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:18:28,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:18:28,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:18:28,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:18:28,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:18:28" (1/1) ... [2021-11-05 13:18:28,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@86991fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:28, skipping insertion in model container [2021-11-05 13:18:28,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:18:28" (1/1) ... [2021-11-05 13:18:28,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:18:28,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:18:28,616 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_linked_list_node_reset_harness.i[4500,4513] [2021-11-05 13:18:28,622 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_linked_list_node_reset_harness.i[4560,4573] [2021-11-05 13:18:28,638 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:18:28,647 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:18:29,131 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,132 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,133 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,134 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,142 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,143 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,144 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,145 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,146 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,376 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:18:29,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:18:29,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:18:29,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:18:29,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:18:29,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:18:29,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:18:29,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:18:29,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:18:29,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:18:29,471 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:18:29,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:18:29,502 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:18:29,512 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_linked_list_node_reset_harness.i[4500,4513] [2021-11-05 13:18:29,513 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_linked_list_node_reset_harness.i[4560,4573] [2021-11-05 13:18:29,514 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:18:29,515 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:18:29,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,543 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,550 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,551 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,553 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,554 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,555 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:18:29,584 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:18:29,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:18:29,586 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:18:29,587 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:18:29,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:18:29,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:18:29,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:18:29,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:18:29,589 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:18:29,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:18:29,652 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:18:29,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:18:29,847 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:18:29,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29 WrapperNode [2021-11-05 13:18:29,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:18:29,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:18:29,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:18:29,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:18:29,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:29,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:18:29,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:18:29,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:18:29,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:18:29,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:29,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:29,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:29,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:30,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:30,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:30,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:30,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:18:30,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:18:30,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:18:30,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:18:30,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (1/1) ... [2021-11-05 13:18:30,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:18:30,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:30,056 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 13:18:30,063 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 13:18:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:18:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 13:18:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:18:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:18:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:18:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:18:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 13:18:30,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:18:30,422 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-05 13:18:30,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:18:30 BoogieIcfgContainer [2021-11-05 13:18:30,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:18:30,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:18:30,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:18:30,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:18:30,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:18:28" (1/3) ... [2021-11-05 13:18:30,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1e6ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:18:30, skipping insertion in model container [2021-11-05 13:18:30,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:18:29" (2/3) ... [2021-11-05 13:18:30,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1e6ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:18:30, skipping insertion in model container [2021-11-05 13:18:30,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:18:30" (3/3) ... [2021-11-05 13:18:30,432 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_node_reset_harness.i [2021-11-05 13:18:30,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:18:30,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-05 13:18:30,485 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:18:30,491 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 13:18:30,495 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-05 13:18:30,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 28 states have (on average 1.5) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-05 13:18:30,523 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:30,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:30,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:30,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:30,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1935931966, now seen corresponding path program 1 times [2021-11-05 13:18:30,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:30,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151997960] [2021-11-05 13:18:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:30,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:30,782 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 13:18:30,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:30,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151997960] [2021-11-05 13:18:30,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151997960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:18:30,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:18:30,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 13:18:30,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178309190] [2021-11-05 13:18:30,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:18:30,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:18:30,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:30,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:18:30,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:18:30,816 INFO L87 Difference]: Start difference. First operand has 31 states, 28 states have (on average 1.5) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 13:18:30,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:30,831 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2021-11-05 13:18:30,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:18:30,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-11-05 13:18:30,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:30,838 INFO L225 Difference]: With dead ends: 59 [2021-11-05 13:18:30,838 INFO L226 Difference]: Without dead ends: 26 [2021-11-05 13:18:30,841 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 13:18:30,843 INFO L933 BasicCegarLoop]: 35 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, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.84ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:30,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.84ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:18:30,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-05 13:18:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-05 13:18:30,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:30,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-11-05 13:18:30,868 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2021-11-05 13:18:30,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:30,869 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-11-05 13:18:30,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 13:18:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-11-05 13:18:30,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-05 13:18:30,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:30,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:30,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 13:18:30,874 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:30,875 INFO L85 PathProgramCache]: Analyzing trace with hash 712013687, now seen corresponding path program 1 times [2021-11-05 13:18:30,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:30,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760922173] [2021-11-05 13:18:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:30,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:31,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:31,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760922173] [2021-11-05 13:18:31,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760922173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:18:31,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:18:31,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 13:18:31,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082527681] [2021-11-05 13:18:31,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:18:31,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:18:31,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:31,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:18:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:18:31,007 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 13:18:31,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:31,040 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-11-05 13:18:31,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 13:18:31,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-11-05 13:18:31,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:31,041 INFO L225 Difference]: With dead ends: 42 [2021-11-05 13:18:31,041 INFO L226 Difference]: Without dead ends: 33 [2021-11-05 13:18:31,042 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.68ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 13:18:31,043 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.56ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.10ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:31,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 74 Invalid, 20 Unknown, 0 Unchecked, 1.56ms Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 17.10ms Time] [2021-11-05 13:18:31,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-05 13:18:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-11-05 13:18:31,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.2) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:31,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-11-05 13:18:31,053 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 13 [2021-11-05 13:18:31,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:31,053 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-11-05 13:18:31,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 13:18:31,054 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2021-11-05 13:18:31,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-05 13:18:31,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:31,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:31,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 13:18:31,055 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:31,056 INFO L85 PathProgramCache]: Analyzing trace with hash 713622401, now seen corresponding path program 1 times [2021-11-05 13:18:31,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:31,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892452891] [2021-11-05 13:18:31,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:31,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:31,166 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 13:18:31,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:31,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892452891] [2021-11-05 13:18:31,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892452891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 13:18:31,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:18:31,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 13:18:31,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190502506] [2021-11-05 13:18:31,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:18:31,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:18:31,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:31,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:18:31,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:18:31,170 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 13:18:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:31,181 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2021-11-05 13:18:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:18:31,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2021-11-05 13:18:31,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:31,183 INFO L225 Difference]: With dead ends: 50 [2021-11-05 13:18:31,183 INFO L226 Difference]: Without dead ends: 28 [2021-11-05 13:18:31,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 13:18:31,187 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.41ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:31,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 4.41ms Time] [2021-11-05 13:18:31,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-05 13:18:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-05 13:18:31,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states 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 13:18:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-11-05 13:18:31,192 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 13 [2021-11-05 13:18:31,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-11-05 13:18:31,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states 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 13:18:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-11-05 13:18:31,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-05 13:18:31,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:31,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:31,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 13:18:31,194 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:31,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1604464193, now seen corresponding path program 1 times [2021-11-05 13:18:31,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:31,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471631807] [2021-11-05 13:18:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:31,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:31,331 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 13:18:31,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:31,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471631807] [2021-11-05 13:18:31,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471631807] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:31,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960066427] [2021-11-05 13:18:31,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:31,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:31,345 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 13:18:31,375 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 13:18:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:31,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-05 13:18:31,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:31,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:18:31,638 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 15 treesize of output 7 [2021-11-05 13:18:31,655 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 13:18:31,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:18:31,836 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 56 treesize of output 48 [2021-11-05 13:18:31,880 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 13:18:31,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960066427] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:18:31,880 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:18:31,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2021-11-05 13:18:31,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23357298] [2021-11-05 13:18:31,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:18:31,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:18:31,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:31,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:18:31,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-05 13:18:31,887 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:32,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:32,004 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2021-11-05 13:18:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:18:32,006 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-05 13:18:32,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:32,006 INFO L225 Difference]: With dead ends: 51 [2021-11-05 13:18:32,006 INFO L226 Difference]: Without dead ends: 29 [2021-11-05 13:18:32,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 126.06ms TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-11-05 13:18:32,007 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.55ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.21ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:32,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 199 Invalid, 57 Unknown, 0 Unchecked, 2.55ms Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 66.21ms Time] [2021-11-05 13:18:32,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-05 13:18:32,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-05 13:18:32,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 28 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:32,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-11-05 13:18:32,013 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 14 [2021-11-05 13:18:32,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:32,013 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-11-05 13:18:32,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:32,013 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-11-05 13:18:32,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 13:18:32,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:32,014 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:32,035 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 13:18:32,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:32,227 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:32,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:32,228 INFO L85 PathProgramCache]: Analyzing trace with hash -844211327, now seen corresponding path program 2 times [2021-11-05 13:18:32,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:32,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310348428] [2021-11-05 13:18:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:32,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:32,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:32,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310348428] [2021-11-05 13:18:32,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310348428] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:32,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853595447] [2021-11-05 13:18:32,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:18:32,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:32,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:32,312 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 13:18:32,313 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 13:18:32,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:18:32,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:18:32,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-05 13:18:32,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:32,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:18:32,498 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-05 13:18:32,498 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 28 treesize of output 23 [2021-11-05 13:18:32,636 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-05 13:18:32,636 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 31 treesize of output 13 [2021-11-05 13:18:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:32,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:18:32,840 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 131 treesize of output 123 [2021-11-05 13:18:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:32,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853595447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:18:32,936 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:18:32,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 15 [2021-11-05 13:18:32,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441013811] [2021-11-05 13:18:32,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:18:32,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 13:18:32,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:32,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 13:18:32,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-05 13:18:32,939 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 15 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 13:18:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:33,048 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2021-11-05 13:18:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:18:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 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 15 [2021-11-05 13:18:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:33,050 INFO L225 Difference]: With dead ends: 58 [2021-11-05 13:18:33,050 INFO L226 Difference]: Without dead ends: 36 [2021-11-05 13:18:33,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 241.99ms TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-11-05 13:18:33,051 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.39ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 36.63ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:33,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 73 Unknown, 0 Unchecked, 1.39ms Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 25 Unchecked, 36.63ms Time] [2021-11-05 13:18:33,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-05 13:18:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-05 13:18:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:33,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-11-05 13:18:33,054 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 15 [2021-11-05 13:18:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:33,054 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-11-05 13:18:33,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 15 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 13:18:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2021-11-05 13:18:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-05 13:18:33,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:33,055 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:33,077 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 13:18:33,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:33,260 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:33,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:33,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1021162369, now seen corresponding path program 3 times [2021-11-05 13:18:33,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:33,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49295373] [2021-11-05 13:18:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:33,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:33,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:33,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:33,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49295373] [2021-11-05 13:18:33,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49295373] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:33,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885013204] [2021-11-05 13:18:33,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:18:33,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:33,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:33,368 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 13:18:33,369 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 13:18:33,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-05 13:18:33,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:18:33,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-05 13:18:33,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:33,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:18:33,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:33,571 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 13:18:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:33,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-05 13:18:33,663 INFO L354 Elim1Store]: treesize reduction 104, result has 20.0 percent of original size [2021-11-05 13:18:33,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 44 [2021-11-05 13:18:33,762 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-05 13:18:33,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 16 [2021-11-05 13:18:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:33,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:18:34,044 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 572 treesize of output 564 [2021-11-05 13:18:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:34,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885013204] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:18:34,178 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:18:34,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 21 [2021-11-05 13:18:34,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702131561] [2021-11-05 13:18:34,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:18:34,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-05 13:18:34,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:34,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-05 13:18:34,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2021-11-05 13:18:34,179 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:35,097 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2021-11-05 13:18:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-05 13:18:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-05 13:18:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:35,101 INFO L225 Difference]: With dead ends: 145 [2021-11-05 13:18:35,101 INFO L226 Difference]: Without dead ends: 118 [2021-11-05 13:18:35,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 934.67ms TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2021-11-05 13:18:35,102 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 187 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 249.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.08ms SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 288.81ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:35,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 311 Invalid, 240 Unknown, 0 Unchecked, 3.08ms Time], IncrementalHoareTripleChecker [26 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 288.81ms Time] [2021-11-05 13:18:35,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-05 13:18:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 40. [2021-11-05 13:18:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.236842105263158) internal successors, (47), 39 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:35,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2021-11-05 13:18:35,108 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 17 [2021-11-05 13:18:35,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:35,108 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2021-11-05 13:18:35,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:35,108 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2021-11-05 13:18:35,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-05 13:18:35,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:35,108 INFO L514 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:35,133 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 13:18:35,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:35,309 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:35,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1252367487, now seen corresponding path program 4 times [2021-11-05 13:18:35,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:35,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596507791] [2021-11-05 13:18:35,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:35,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:35,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:35,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596507791] [2021-11-05 13:18:35,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596507791] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:35,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629658303] [2021-11-05 13:18:35,485 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-05 13:18:35,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:35,486 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 13:18:35,487 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 13:18:35,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-05 13:18:35,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:18:35,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-05 13:18:35,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:35,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:18:35,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,744 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 21 treesize of output 20 [2021-11-05 13:18:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 33 [2021-11-05 13:18:35,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-05 13:18:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2021-11-05 13:18:35,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:35,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-05 13:18:36,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:36,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-05 13:18:36,244 INFO L354 Elim1Store]: treesize reduction 416, result has 13.0 percent of original size [2021-11-05 13:18:36,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 103 treesize of output 92 [2021-11-05 13:18:36,479 INFO L354 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2021-11-05 13:18:36,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 28 [2021-11-05 13:18:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:36,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:18:37,484 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 9452 treesize of output 9444 [2021-11-05 13:18:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:38,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629658303] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:18:38,056 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:18:38,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 13] total 33 [2021-11-05 13:18:38,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258502024] [2021-11-05 13:18:38,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:18:38,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-05 13:18:38,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:38,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-05 13:18:38,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=918, Unknown=0, NotChecked=0, Total=1056 [2021-11-05 13:18:38,059 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 33 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 33 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:47,950 INFO L93 Difference]: Finished difference Result 280 states and 325 transitions. [2021-11-05 13:18:47,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-05 13:18:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 33 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-05 13:18:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:47,954 INFO L225 Difference]: With dead ends: 280 [2021-11-05 13:18:47,954 INFO L226 Difference]: Without dead ends: 253 [2021-11-05 13:18:47,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 9418.73ms TimeCoverageRelationStatistics Valid=615, Invalid=3167, Unknown=0, NotChecked=0, Total=3782 [2021-11-05 13:18:47,957 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 861 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1651.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.21ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1758.65ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:47,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 371 Invalid, 471 Unknown, 0 Unchecked, 8.21ms Time], IncrementalHoareTripleChecker [85 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 1758.65ms Time] [2021-11-05 13:18:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-05 13:18:47,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 48. [2021-11-05 13:18:47,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 47 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2021-11-05 13:18:47,966 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 21 [2021-11-05 13:18:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:47,966 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2021-11-05 13:18:47,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 33 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2021-11-05 13:18:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-05 13:18:47,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:47,967 INFO L514 BasicCegarLoop]: trace histogram [9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:47,989 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 13:18:48,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:48,180 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:48,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1542344184, now seen corresponding path program 1 times [2021-11-05 13:18:48,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:48,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880876050] [2021-11-05 13:18:48,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:48,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:48,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:48,399 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 13:18:48,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:48,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880876050] [2021-11-05 13:18:48,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880876050] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:48,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086341383] [2021-11-05 13:18:48,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:48,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:48,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:48,404 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 13:18:48,405 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 13:18:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:48,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-05 13:18:48,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:48,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:18:48,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,675 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 21 treesize of output 20 [2021-11-05 13:18:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:18:48,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-05 13:18:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2021-11-05 13:18:48,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-05 13:18:48,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:48,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-11-05 13:18:49,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:18:49,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 93 [2021-11-05 13:18:49,196 INFO L354 Elim1Store]: treesize reduction 524, result has 11.9 percent of original size [2021-11-05 13:18:49,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 123 treesize of output 101 [2021-11-05 13:18:49,611 INFO L354 Elim1Store]: treesize reduction 416, result has 0.2 percent of original size [2021-11-05 13:18:49,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 137 treesize of output 33 [2021-11-05 13:18:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:18:49,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:18:52,608 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-05 13:18:52,609 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 40921 treesize of output 40901 [2021-11-05 13:18:52,690 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-05 13:18:52,691 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 13:18:52,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2021-11-05 13:18:52,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864645228] [2021-11-05 13:18:52,691 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 13:18:52,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 13:18:52,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:18:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 13:18:52,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1376, Unknown=0, NotChecked=0, Total=1560 [2021-11-05 13:18:52,693 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 13:18:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:18:52,757 INFO L93 Difference]: Finished difference Result 72 states and 86 transitions. [2021-11-05 13:18:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-05 13:18:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 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 25 [2021-11-05 13:18:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:18:52,759 INFO L225 Difference]: With dead ends: 72 [2021-11-05 13:18:52,759 INFO L226 Difference]: Without dead ends: 48 [2021-11-05 13:18:52,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 3051.46ms TimeCoverageRelationStatistics Valid=184, Invalid=1376, Unknown=0, NotChecked=0, Total=1560 [2021-11-05 13:18:52,760 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.61ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.03ms IncrementalHoareTripleChecker+Time [2021-11-05 13:18:52,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 105 Unknown, 0 Unchecked, 0.61ms Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 59.03ms Time] [2021-11-05 13:18:52,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-05 13:18:52,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-05 13:18:52,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 47 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:18:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2021-11-05 13:18:52,770 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 25 [2021-11-05 13:18:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:18:52,770 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2021-11-05 13:18:52,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states 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 13:18:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2021-11-05 13:18:52,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-05 13:18:52,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:18:52,771 INFO L514 BasicCegarLoop]: trace histogram [10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:18:52,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-05 13:18:52,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:52,990 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:18:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:18:52,991 INFO L85 PathProgramCache]: Analyzing trace with hash 350050488, now seen corresponding path program 2 times [2021-11-05 13:18:52,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:18:52,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278006142] [2021-11-05 13:18:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:18:52,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:18:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:18:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 13:18:53,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:18:53,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278006142] [2021-11-05 13:18:53,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278006142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:18:53,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877678739] [2021-11-05 13:18:53,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:18:53,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:18:53,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:18:53,195 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 13:18:53,197 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 13:18:53,481 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:18:53,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:18:53,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-05 13:18:53,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:18:53,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 13:18:53,583 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-05 13:18:53,583 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 31 treesize of output 30 [2021-11-05 13:18:53,651 INFO L354 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2021-11-05 13:18:53,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 47 [2021-11-05 13:18:53,752 INFO L354 Elim1Store]: treesize reduction 114, result has 19.7 percent of original size [2021-11-05 13:18:53,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 64 [2021-11-05 13:18:53,912 INFO L354 Elim1Store]: treesize reduction 176, result has 17.4 percent of original size [2021-11-05 13:18:53,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 81 [2021-11-05 13:18:56,156 INFO L354 Elim1Store]: treesize reduction 250, result has 15.5 percent of original size [2021-11-05 13:18:56,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 98 [2021-11-05 13:19:02,473 INFO L354 Elim1Store]: treesize reduction 336, result has 14.1 percent of original size [2021-11-05 13:19:02,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 101 treesize of output 115 [2021-11-05 13:19:10,842 INFO L354 Elim1Store]: treesize reduction 434, result has 12.9 percent of original size [2021-11-05 13:19:10,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 132 [2021-11-05 13:19:19,558 INFO L354 Elim1Store]: treesize reduction 544, result has 11.8 percent of original size [2021-11-05 13:19:19,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 172 treesize of output 144 [2021-11-05 13:19:35,279 INFO L354 Elim1Store]: treesize reduction 432, result has 0.2 percent of original size [2021-11-05 13:19:35,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 177 treesize of output 69 [2021-11-05 13:19:35,314 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 16 proven. 29 refuted. 12 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:19:35,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:19:36,529 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr680_69| Int)) (or (let ((.cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.base|) (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr680| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) |c_ULTIMATE.start_#Ultimate.C_memset_#value|) (+ |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr680_69| |c_ULTIMATE.start_#Ultimate.C_memset_#ptr.offset|) |c_ULTIMATE.start_#Ultimate.C_memset_#value|)) c_ULTIMATE.start_aws_linked_list_node_reset_~node.base) (+ c_ULTIMATE.start_aws_linked_list_node_reset_~node.offset 1)))) (<= (div (* .cse0 (- 1)) (- 256)) (+ (div (+ .cse0 (- 256)) 256) 1))) (< |v_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr680_69| (+ |c_ULTIMATE.start_#Ultimate.C_memset_#t~loopctr680| 1)))) is different from false [2021-11-05 13:21:19,727 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 19994 treesize of output 19982 [2021-11-05 13:21:19,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-05 13:21:19,775 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 13:21:19,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-05 13:21:19,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849688077] [2021-11-05 13:21:19,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 13:21:19,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-05 13:21:19,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:21:19,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-05 13:21:19,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1172, Unknown=58, NotChecked=72, Total=1482 [2021-11-05 13:21:19,776 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 13:21:19,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:21:19,866 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2021-11-05 13:21:19,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 13:21:19,867 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 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 26 [2021-11-05 13:21:19,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:21:19,867 INFO L225 Difference]: With dead ends: 72 [2021-11-05 13:21:19,867 INFO L226 Difference]: Without dead ends: 48 [2021-11-05 13:21:19,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 142775.51ms TimeCoverageRelationStatistics Valid=180, Invalid=1172, Unknown=58, NotChecked=72, Total=1482 [2021-11-05 13:21:19,868 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.18ms IncrementalHoareTripleChecker+Time [2021-11-05 13:21:19,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 122 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 83.18ms Time] [2021-11-05 13:21:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-05 13:21:19,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-05 13:21:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 47 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 13:21:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2021-11-05 13:21:19,872 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 26 [2021-11-05 13:21:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:21:19,873 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-11-05 13:21:19,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states 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 13:21:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-11-05 13:21:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:21:19,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:21:19,875 INFO L514 BasicCegarLoop]: trace histogram [11, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:21:19,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-05 13:21:20,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:21:20,080 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:21:20,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:21:20,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2043651576, now seen corresponding path program 3 times [2021-11-05 13:21:20,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:21:20,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126221438] [2021-11-05 13:21:20,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:21:20,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:21:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:21:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-05 13:21:20,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:21:20,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126221438] [2021-11-05 13:21:20,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126221438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:21:20,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1405999963] [2021-11-05 13:21:20,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:21:20,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:21:20,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:21:20,353 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:21:20,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-05 13:21:21,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-11-05 13:21:21,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:21:21,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-05 13:21:21,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:21:21,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:21:21,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,563 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 25 treesize of output 24 [2021-11-05 13:21:21,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-11-05 13:21:21,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-05 13:21:21,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-11-05 13:21:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 68 [2021-11-05 13:21:21,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 81 [2021-11-05 13:21:21,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:21,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 94 [2021-11-05 13:21:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 107 [2021-11-05 13:21:22,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:21:22,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 116 [2021-11-05 13:21:22,429 INFO L354 Elim1Store]: treesize reduction 776, result has 10.3 percent of original size [2021-11-05 13:21:22,429 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 162 treesize of output 128 [2021-11-05 13:21:22,865 INFO L354 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2021-11-05 13:21:22,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 167 treesize of output 37 [2021-11-05 13:21:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:21:22,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:21:27,809 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 83950 treesize of output 83938 [2021-11-05 13:21:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:21:29,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1405999963] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:21:29,688 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:21:29,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 17] total 44 [2021-11-05 13:21:29,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487078882] [2021-11-05 13:21:29,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:21:29,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-05 13:21:29,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:21:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-05 13:21:29,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1670, Unknown=0, NotChecked=0, Total=1892 [2021-11-05 13:21:29,690 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 44 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 44 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 13:23:08,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:23:08,592 INFO L93 Difference]: Finished difference Result 461 states and 534 transitions. [2021-11-05 13:23:08,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-05 13:23:08,593 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 44 states have internal predecessors, (68), 0 states have call successors, (0), 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 27 [2021-11-05 13:23:08,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:23:08,595 INFO L225 Difference]: With dead ends: 461 [2021-11-05 13:23:08,595 INFO L226 Difference]: Without dead ends: 437 [2021-11-05 13:23:08,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2033 ImplicationChecksByTransitivity, 95224.67ms TimeCoverageRelationStatistics Valid=1576, Invalid=9344, Unknown=0, NotChecked=0, Total=10920 [2021-11-05 13:23:08,598 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 2327 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8787.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.91ms SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9193.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:23:08,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2327 Valid, 580 Invalid, 931 Unknown, 0 Unchecked, 14.91ms Time], IncrementalHoareTripleChecker [220 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 9193.00ms Time] [2021-11-05 13:23:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-11-05 13:23:08,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 62. [2021-11-05 13:23:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.3166666666666667) internal successors, (79), 61 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:23:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2021-11-05 13:23:08,621 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 27 [2021-11-05 13:23:08,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:23:08,621 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2021-11-05 13:23:08,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 1.5454545454545454) internal successors, (68), 44 states have internal predecessors, (68), 0 states have call successors, (0), 0 states 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 13:23:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2021-11-05 13:23:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:23:08,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:23:08,622 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:23:08,640 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-05 13:23:08,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:23:08,823 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:23:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:23:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1999912063, now seen corresponding path program 5 times [2021-11-05 13:23:08,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:23:08,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682336076] [2021-11-05 13:23:08,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:23:08,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:23:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:23:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 91 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:23:09,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:23:09,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682336076] [2021-11-05 13:23:09,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682336076] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:23:09,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445786978] [2021-11-05 13:23:09,454 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-05 13:23:09,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:23:09,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:23:09,456 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:23:09,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-05 13:23:32,651 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-11-05 13:23:32,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:23:32,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-05 13:23:32,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:23:32,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-05 13:23:32,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,759 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 13:23:32,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:23:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-11-05 13:23:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 57 [2021-11-05 13:23:32,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:32,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2021-11-05 13:23:33,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 83 [2021-11-05 13:23:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2021-11-05 13:23:33,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2021-11-05 13:23:33,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 116 [2021-11-05 13:23:33,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 129 [2021-11-05 13:23:33,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 66 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 140 [2021-11-05 13:23:33,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 152 [2021-11-05 13:23:33,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:33,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 91 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 164 [2021-11-05 13:23:34,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:23:34,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 105 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 176 [2021-11-05 13:23:34,877 INFO L354 Elim1Store]: treesize reduction 1616, result has 7.7 percent of original size [2021-11-05 13:23:34,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 237 treesize of output 188 [2021-11-05 13:23:35,292 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-11-05 13:23:35,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 240 treesize of output 52 [2021-11-05 13:23:35,299 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:23:35,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:23:52,007 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 2424812 treesize of output 2424804 [2021-11-05 13:24:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:27,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445786978] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:24:27,645 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-05 13:24:27,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 60 [2021-11-05 13:24:27,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161275649] [2021-11-05 13:24:27,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-05 13:24:27,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-05 13:24:27,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-05 13:24:27,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=773, Invalid=2767, Unknown=0, NotChecked=0, Total=3540 [2021-11-05 13:24:27,647 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 60 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 60 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 13:24:34,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:34,266 INFO L93 Difference]: Finished difference Result 244 states and 283 transitions. [2021-11-05 13:24:34,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-05 13:24:34,267 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 60 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 29 [2021-11-05 13:24:34,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:34,268 INFO L225 Difference]: With dead ends: 244 [2021-11-05 13:24:34,268 INFO L226 Difference]: Without dead ends: 231 [2021-11-05 13:24:34,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 22337.63ms TimeCoverageRelationStatistics Valid=2146, Invalid=7166, Unknown=0, NotChecked=0, Total=9312 [2021-11-05 13:24:34,270 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 1027 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1932.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.20ms SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2123.91ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:34,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1027 Valid, 1606 Invalid, 1485 Unknown, 0 Unchecked, 6.20ms Time], IncrementalHoareTripleChecker [165 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 2123.91ms Time] [2021-11-05 13:24:34,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-05 13:24:34,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 57. [2021-11-05 13:24:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.309090909090909) internal successors, (72), 56 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 13:24:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 72 transitions. [2021-11-05 13:24:34,278 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 72 transitions. Word has length 29 [2021-11-05 13:24:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:34,278 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 72 transitions. [2021-11-05 13:24:34,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 60 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 13:24:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 72 transitions. [2021-11-05 13:24:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:24:34,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:34,279 INFO L514 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:34,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-05 13:24:34,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 13:24:34,485 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:24:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1337236171, now seen corresponding path program 1 times [2021-11-05 13:24:34,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:34,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680978328] [2021-11-05 13:24:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:34,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:24:34,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:34,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680978328] [2021-11-05 13:24:34,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680978328] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:34,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767984202] [2021-11-05 13:24:34,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:34,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:34,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:34,719 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:34,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-05 13:24:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:34,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-05 13:24:34,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-11-05 13:24:34,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:24:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-05 13:24:34,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767984202] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:34,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:24:34,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15, 4] total 17 [2021-11-05 13:24:34,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210885423] [2021-11-05 13:24:34,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 13:24:34,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 13:24:34,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:24:34,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 13:24:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:24:34,896 INFO L87 Difference]: Start difference. First operand 57 states and 72 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 13:24:34,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:24:34,913 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2021-11-05 13:24:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 13:24:34,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 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 31 [2021-11-05 13:24:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:24:34,914 INFO L225 Difference]: With dead ends: 73 [2021-11-05 13:24:34,914 INFO L226 Difference]: Without dead ends: 61 [2021-11-05 13:24:34,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 135.18ms TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-11-05 13:24:34,915 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.14ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.54ms IncrementalHoareTripleChecker+Time [2021-11-05 13:24:34,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 40 Invalid, 10 Unknown, 0 Unchecked, 0.14ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 10.54ms Time] [2021-11-05 13:24:34,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-11-05 13:24:34,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 58. [2021-11-05 13:24:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 57 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 13:24:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2021-11-05 13:24:34,922 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 31 [2021-11-05 13:24:34,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:24:34,922 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2021-11-05 13:24:34,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states 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 13:24:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2021-11-05 13:24:34,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-05 13:24:34,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:24:34,923 INFO L514 BasicCegarLoop]: trace histogram [12, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:24:34,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-05 13:24:35,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:35,129 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:24:35,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:24:35,130 INFO L85 PathProgramCache]: Analyzing trace with hash -2039155679, now seen corresponding path program 4 times [2021-11-05 13:24:35,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 13:24:35,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959868309] [2021-11-05 13:24:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:24:35,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 13:24:35,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:24:35,365 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 13:24:35,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 13:24:35,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959868309] [2021-11-05 13:24:35,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959868309] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-05 13:24:35,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456816150] [2021-11-05 13:24:35,366 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-05 13:24:35,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 13:24:35,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:24:35,367 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-05 13:24:35,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-05 13:24:35,443 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-05 13:24:35,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:24:35,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-05 13:24:35,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:24:35,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-05 13:24:35,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,510 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 25 treesize of output 24 [2021-11-05 13:24:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-05 13:24:35,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,608 INFO L354 Elim1Store]: treesize reduction 72, result has 26.5 percent of original size [2021-11-05 13:24:35,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2021-11-05 13:24:35,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,699 INFO L354 Elim1Store]: treesize reduction 132, result has 21.0 percent of original size [2021-11-05 13:24:35,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 69 [2021-11-05 13:24:35,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,840 INFO L354 Elim1Store]: treesize reduction 204, result has 17.7 percent of original size [2021-11-05 13:24:35,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 75 treesize of output 86 [2021-11-05 13:24:35,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:35,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:36,034 INFO L354 Elim1Store]: treesize reduction 288, result has 15.5 percent of original size [2021-11-05 13:24:36,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 89 treesize of output 103 [2021-11-05 13:24:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:36,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:36,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:36,294 INFO L354 Elim1Store]: treesize reduction 384, result has 13.9 percent of original size [2021-11-05 13:24:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 103 treesize of output 120 [2021-11-05 13:24:38,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:38,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:38,710 INFO L354 Elim1Store]: treesize reduction 492, result has 12.6 percent of original size [2021-11-05 13:24:38,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 117 treesize of output 137 [2021-11-05 13:24:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:45,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:45,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:45,129 INFO L354 Elim1Store]: treesize reduction 612, result has 11.6 percent of original size [2021-11-05 13:24:45,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 42 case distinctions, treesize of input 131 treesize of output 154 [2021-11-05 13:24:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:53,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:24:53,848 INFO L354 Elim1Store]: treesize reduction 744, result has 10.7 percent of original size [2021-11-05 13:24:53,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 52 case distinctions, treesize of input 145 treesize of output 171 [2021-11-05 13:25:05,601 INFO L354 Elim1Store]: treesize reduction 920, result has 9.6 percent of original size [2021-11-05 13:25:05,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 220 treesize of output 183 [2021-11-05 13:25:56,619 WARN L228 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-05 13:25:56,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-05 13:25:56,620 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-05 13:25:56,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2021-11-05 13:25:56,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760879804] [2021-11-05 13:25:56,620 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-05 13:25:56,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-05 13:25:56,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 13:25:56,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-05 13:25:56,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=603, Unknown=11, NotChecked=0, Total=702 [2021-11-05 13:25:56,621 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 13:25:56,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:25:56,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 28617.38ms TimeCoverageRelationStatistics Valid=88, Invalid=603, Unknown=11, NotChecked=0, Total=702 [2021-11-05 13:25:56,622 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:25:56,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 0.03ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:25:56,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-05 13:25:56,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-05 13:25:56,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-05 13:25:56,823 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@59688d30 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:868) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:784) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-05 13:25:56,825 INFO L158 Benchmark]: Toolchain (without parser) took 448470.06ms. Allocated memory was 60.8MB in the beginning and 297.8MB in the end (delta: 237.0MB). Free memory was 32.9MB in the beginning and 218.3MB in the end (delta: -185.4MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 47.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1491.61ms. Allocated memory was 60.8MB in the beginning and 115.3MB in the end (delta: 54.5MB). Free memory was 32.8MB in the beginning and 52.3MB in the end (delta: -19.5MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.77ms. Allocated memory is still 115.3MB. Free memory was 52.3MB in the beginning and 78.2MB in the end (delta: -26.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: Boogie Preprocessor took 48.37ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: RCFGBuilder took 395.72ms. Allocated memory is still 115.3MB. Free memory was 76.1MB in the beginning and 59.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,826 INFO L158 Benchmark]: TraceAbstraction took 446400.34ms. Allocated memory was 115.3MB in the beginning and 297.8MB in the end (delta: 182.5MB). Free memory was 59.3MB in the beginning and 218.3MB in the end (delta: -159.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2021-11-05 13:25:56,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 47.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1491.61ms. Allocated memory was 60.8MB in the beginning and 115.3MB in the end (delta: 54.5MB). Free memory was 32.8MB in the beginning and 52.3MB in the end (delta: -19.5MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.77ms. Allocated memory is still 115.3MB. Free memory was 52.3MB in the beginning and 78.2MB in the end (delta: -26.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.37ms. Allocated memory is still 115.3MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.72ms. Allocated memory is still 115.3MB. Free memory was 76.1MB in the beginning and 59.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 446400.34ms. Allocated memory was 115.3MB in the beginning and 297.8MB in the end (delta: 182.5MB). Free memory was 59.3MB in the beginning and 218.3MB in the end (delta: -159.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@59688d30 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@59688d30: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:82) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_linked_list_node_reset_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 39617118f1cddf1edf0da2bed0d1b7ba56db146c1be6da9375c591252f5b5d55 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 13:25:58,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 13:25:58,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 13:25:58,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 13:25:58,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 13:25:58,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 13:25:58,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 13:25:58,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 13:25:58,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 13:25:58,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 13:25:58,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 13:25:58,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 13:25:58,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 13:25:58,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 13:25:58,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 13:25:58,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 13:25:58,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 13:25:58,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 13:25:58,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 13:25:58,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 13:25:58,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 13:25:58,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 13:25:58,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 13:25:58,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 13:25:58,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 13:25:58,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 13:25:58,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 13:25:58,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 13:25:58,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 13:25:58,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 13:25:58,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 13:25:58,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 13:25:58,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 13:25:58,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 13:25:58,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 13:25:58,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 13:25:58,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 13:25:58,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 13:25:58,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 13:25:58,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 13:25:58,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 13:25:58,392 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 13:25:58,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 13:25:58,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 13:25:58,422 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 13:25:58,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 13:25:58,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 13:25:58,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 13:25:58,424 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 13:25:58,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 13:25:58,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 13:25:58,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 13:25:58,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 13:25:58,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 13:25:58,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 13:25:58,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 13:25:58,425 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 13:25:58,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 13:25:58,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 13:25:58,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 13:25:58,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 13:25:58,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 13:25:58,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:25:58,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 13:25:58,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 13:25:58,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 13:25:58,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 13:25:58,428 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39617118f1cddf1edf0da2bed0d1b7ba56db146c1be6da9375c591252f5b5d55 [2021-11-05 13:25:58,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 13:25:58,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 13:25:58,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 13:25:58,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 13:25:58,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 13:25:58,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i [2021-11-05 13:25:58,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc380bad2/3596c2c480674479838d6b4d07491ed9/FLAG451ecd0ee [2021-11-05 13:25:59,419 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 13:25:59,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_linked_list_node_reset_harness.i [2021-11-05 13:25:59,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc380bad2/3596c2c480674479838d6b4d07491ed9/FLAG451ecd0ee [2021-11-05 13:25:59,793 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc380bad2/3596c2c480674479838d6b4d07491ed9 [2021-11-05 13:25:59,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 13:25:59,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 13:25:59,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 13:25:59,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 13:25:59,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 13:25:59,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:25:59" (1/1) ... [2021-11-05 13:25:59,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48293b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:25:59, skipping insertion in model container [2021-11-05 13:25:59,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 01:25:59" (1/1) ... [2021-11-05 13:25:59,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 13:25:59,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 13:26:00,105 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_linked_list_node_reset_harness.i[4500,4513] [2021-11-05 13:26:00,110 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_linked_list_node_reset_harness.i[4560,4573] [2021-11-05 13:26:00,128 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:26:00,133 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:26:00,596 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,597 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,599 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,619 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,621 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,627 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,628 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,844 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:26:00,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:26:00,845 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:26:00,846 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:26:00,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:26:00,847 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:26:00,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:26:00,851 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:26:00,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:26:00,852 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:26:00,924 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:26:00,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:26:00,952 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 13:26:00,961 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_linked_list_node_reset_harness.i[4500,4513] [2021-11-05 13:26:00,962 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_linked_list_node_reset_harness.i[4560,4573] [2021-11-05 13:26:00,963 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 13:26:00,963 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 13:26:00,993 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,994 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,995 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:00,999 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,000 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,001 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,002 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,003 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 13:26:01,025 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 13:26:01,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 13:26:01,026 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 13:26:01,027 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 13:26:01,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 13:26:01,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 13:26:01,028 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 13:26:01,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 13:26:01,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 13:26:01,029 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 13:26:01,043 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 13:26:01,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 13:26:01,168 INFO L208 MainTranslator]: Completed translation [2021-11-05 13:26:01,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01 WrapperNode [2021-11-05 13:26:01,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 13:26:01,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 13:26:01,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 13:26:01,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 13:26:01,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 13:26:01,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 13:26:01,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 13:26:01,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 13:26:01,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 13:26:01,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 13:26:01,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 13:26:01,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 13:26:01,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (1/1) ... [2021-11-05 13:26:01,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 13:26:01,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 13:26:01,332 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 13:26:01,339 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 13:26:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 13:26:01,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 13:26:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 13:26:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 13:26:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 13:26:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 13:26:01,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 13:26:01,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 13:26:01,782 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-11-05 13:26:01,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:26:01 BoogieIcfgContainer [2021-11-05 13:26:01,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 13:26:01,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 13:26:01,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 13:26:01,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 13:26:01,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 01:25:59" (1/3) ... [2021-11-05 13:26:01,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:26:01, skipping insertion in model container [2021-11-05 13:26:01,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 01:26:01" (2/3) ... [2021-11-05 13:26:01,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128d1f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 01:26:01, skipping insertion in model container [2021-11-05 13:26:01,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 01:26:01" (3/3) ... [2021-11-05 13:26:01,789 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_node_reset_harness.i [2021-11-05 13:26:01,792 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 13:26:01,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-05 13:26:01,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 13:26:01,863 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 13:26:01,864 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-05 13:26:01,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 28 states have (on average 1.5) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:01,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-05 13:26:01,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:01,878 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:01,878 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:01,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:01,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1935931966, now seen corresponding path program 1 times [2021-11-05 13:26:01,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:01,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581077672] [2021-11-05 13:26:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:01,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:01,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:01,917 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:01,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 13:26:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:02,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 13:26:02,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:02,080 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 13:26:02,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:02,112 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 13:26:02,113 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:02,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581077672] [2021-11-05 13:26:02,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581077672] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:26:02,114 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:26:02,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 13:26:02,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340291953] [2021-11-05 13:26:02,116 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:26:02,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 13:26:02,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:02,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 13:26:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:26:02,146 INFO L87 Difference]: Start difference. First operand has 31 states, 28 states have (on average 1.5) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 13:26:02,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:02,161 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2021-11-05 13:26:02,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 13:26:02,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-11-05 13:26:02,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:02,168 INFO L225 Difference]: With dead ends: 59 [2021-11-05 13:26:02,168 INFO L226 Difference]: Without dead ends: 26 [2021-11-05 13:26:02,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.10ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 13:26:02,177 INFO L933 BasicCegarLoop]: 35 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, 35 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:02,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.56ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 13:26:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-05 13:26:02,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-05 13:26:02,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-11-05 13:26:02,208 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2021-11-05 13:26:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:02,208 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-11-05 13:26:02,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 13:26:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-11-05 13:26:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-05 13:26:02,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:02,213 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:02,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 13:26:02,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:02,425 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:02,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:02,426 INFO L85 PathProgramCache]: Analyzing trace with hash 712013687, now seen corresponding path program 1 times [2021-11-05 13:26:02,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:02,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232971493] [2021-11-05 13:26:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:02,426 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:02,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:02,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:02,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 13:26:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:02,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 13:26:02,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:02,584 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 13:26:02,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:02,614 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 13:26:02,615 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:02,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232971493] [2021-11-05 13:26:02,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232971493] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:26:02,615 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:26:02,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 13:26:02,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286722560] [2021-11-05 13:26:02,616 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:26:02,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:26:02,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:02,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:26:02,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:26:02,617 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 13:26:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:02,651 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2021-11-05 13:26:02,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:26:02,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 13 [2021-11-05 13:26:02,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:02,654 INFO L225 Difference]: With dead ends: 49 [2021-11-05 13:26:02,654 INFO L226 Difference]: Without dead ends: 28 [2021-11-05 13:26:02,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.87ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:26:02,655 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.79ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.40ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:02,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 6 Unknown, 0 Unchecked, 0.79ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 27.40ms Time] [2021-11-05 13:26:02,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-05 13:26:02,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-05 13:26:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:02,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-11-05 13:26:02,662 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 13 [2021-11-05 13:26:02,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:02,662 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-11-05 13:26:02,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states 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 13:26:02,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-11-05 13:26:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-05 13:26:02,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:02,663 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:02,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-05 13:26:02,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:02,874 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:02,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:02,874 INFO L85 PathProgramCache]: Analyzing trace with hash -845820041, now seen corresponding path program 1 times [2021-11-05 13:26:02,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:02,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019988467] [2021-11-05 13:26:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:02,875 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:02,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:02,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:02,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 13:26:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:02,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-05 13:26:02,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:03,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:03,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:03,189 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:03,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019988467] [2021-11-05 13:26:03,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019988467] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:26:03,189 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:26:03,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-05 13:26:03,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977403958] [2021-11-05 13:26:03,189 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:26:03,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 13:26:03,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 13:26:03,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 13:26:03,190 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 13:26:03,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:03,388 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2021-11-05 13:26:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 13:26:03,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 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 15 [2021-11-05 13:26:03,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:03,389 INFO L225 Difference]: With dead ends: 53 [2021-11-05 13:26:03,389 INFO L226 Difference]: Without dead ends: 32 [2021-11-05 13:26:03,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 254.05ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-05 13:26:03,390 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.96ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.82ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:03,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 23 Unknown, 0 Unchecked, 0.96ms Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 49.82ms Time] [2021-11-05 13:26:03,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-05 13:26:03,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-05 13:26:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.2) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-11-05 13:26:03,398 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 15 [2021-11-05 13:26:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:03,398 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-11-05 13:26:03,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 0 states have call successors, (0), 0 states 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 13:26:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-11-05 13:26:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 13:26:03,399 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:03,399 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:03,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 13:26:03,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:03,610 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:03,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:03,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1652654217, now seen corresponding path program 2 times [2021-11-05 13:26:03,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:03,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168865179] [2021-11-05 13:26:03,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:26:03,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:03,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:03,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:03,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 13:26:03,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-05 13:26:03,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:26:03,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 13:26:03,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:03,730 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-05 13:26:03,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-05 13:26:03,775 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:03,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168865179] [2021-11-05 13:26:03,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168865179] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 13:26:03,775 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 13:26:03,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-05 13:26:03,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226535859] [2021-11-05 13:26:03,776 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 13:26:03,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 13:26:03,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 13:26:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:26:03,778 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states 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 13:26:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:03,830 INFO L93 Difference]: Finished difference Result 75 states and 84 transitions. [2021-11-05 13:26:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 13:26:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 19 [2021-11-05 13:26:03,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:03,832 INFO L225 Difference]: With dead ends: 75 [2021-11-05 13:26:03,832 INFO L226 Difference]: Without dead ends: 60 [2021-11-05 13:26:03,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.19ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 13:26:03,833 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 42 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.31ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.41ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:03,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 56 Invalid, 24 Unknown, 0 Unchecked, 1.31ms Time], IncrementalHoareTripleChecker [12 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 36.41ms Time] [2021-11-05 13:26:03,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-05 13:26:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 40. [2021-11-05 13:26:03,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 39 states have internal predecessors, (46), 0 states have call successors, (0), 0 states 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 13:26:03,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2021-11-05 13:26:03,837 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 19 [2021-11-05 13:26:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:03,838 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2021-11-05 13:26:03,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states 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 13:26:03,838 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2021-11-05 13:26:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-05 13:26:03,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:03,838 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:03,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-05 13:26:04,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:04,051 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:04,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:04,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1651045503, now seen corresponding path program 1 times [2021-11-05 13:26:04,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:04,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284796485] [2021-11-05 13:26:04,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 13:26:04,053 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:04,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:04,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:04,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 13:26:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 13:26:04,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 13:26:04,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:04,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:04,928 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:04,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284796485] [2021-11-05 13:26:04,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284796485] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:26:04,929 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:26:04,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-11-05 13:26:04,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826344099] [2021-11-05 13:26:04,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:26:04,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-05 13:26:04,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:04,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-05 13:26:04,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-05 13:26:04,930 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 16 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 13:26:06,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:06,030 INFO L93 Difference]: Finished difference Result 77 states and 96 transitions. [2021-11-05 13:26:06,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-05 13:26:06,031 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 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 19 [2021-11-05 13:26:06,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:06,031 INFO L225 Difference]: With dead ends: 77 [2021-11-05 13:26:06,031 INFO L226 Difference]: Without dead ends: 48 [2021-11-05 13:26:06,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1508.16ms TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2021-11-05 13:26:06,032 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 188.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 207.48ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:06,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 83 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 207.48ms Time] [2021-11-05 13:26:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-05 13:26:06,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-11-05 13:26:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 13:26:06,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2021-11-05 13:26:06,037 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 19 [2021-11-05 13:26:06,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:06,037 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2021-11-05 13:26:06,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.6875) internal successors, (27), 16 states have internal predecessors, (27), 0 states have call successors, (0), 0 states 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 13:26:06,038 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2021-11-05 13:26:06,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-05 13:26:06,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:06,038 INFO L514 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:06,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-05 13:26:06,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:06,248 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:06,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1574988673, now seen corresponding path program 2 times [2021-11-05 13:26:06,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:06,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662001915] [2021-11-05 13:26:06,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-05 13:26:06,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:06,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:06,263 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:06,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 13:26:06,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-05 13:26:06,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:26:06,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-05 13:26:06,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:06,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 13:26:08,123 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:26:08,123 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 13:26:08,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662001915] [2021-11-05 13:26:08,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662001915] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-05 13:26:08,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-05 13:26:08,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-11-05 13:26:08,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866937437] [2021-11-05 13:26:08,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-05 13:26:08,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-05 13:26:08,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 13:26:08,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-05 13:26:08,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-05 13:26:08,125 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 32 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:08,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 13:26:08,705 INFO L93 Difference]: Finished difference Result 79 states and 92 transitions. [2021-11-05 13:26:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 13:26:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-05 13:26:08,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 13:26:08,716 INFO L225 Difference]: With dead ends: 79 [2021-11-05 13:26:08,716 INFO L226 Difference]: Without dead ends: 50 [2021-11-05 13:26:08,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1454.19ms TimeCoverageRelationStatistics Valid=195, Invalid=797, Unknown=0, NotChecked=0, Total=992 [2021-11-05 13:26:08,718 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 476.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.15ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 565.75ms IncrementalHoareTripleChecker+Time [2021-11-05 13:26:08,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 434 Invalid, 297 Unknown, 0 Unchecked, 2.15ms Time], IncrementalHoareTripleChecker [15 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 565.75ms Time] [2021-11-05 13:26:08,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-05 13:26:08,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-05 13:26:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:08,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2021-11-05 13:26:08,722 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 27 [2021-11-05 13:26:08,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 13:26:08,722 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2021-11-05 13:26:08,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 13:26:08,722 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2021-11-05 13:26:08,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-05 13:26:08,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 13:26:08,723 INFO L514 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 13:26:08,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 13:26:08,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 13:26:08,952 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-05 13:26:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 13:26:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1999912063, now seen corresponding path program 3 times [2021-11-05 13:26:08,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 13:26:08,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746805873] [2021-11-05 13:26:08,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-05 13:26:08,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 13:26:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 13:26:08,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 13:26:08,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 13:26:09,288 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-05 13:26:09,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-05 13:26:09,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-05 13:26:09,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 13:26:09,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-05 13:26:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,450 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 25 treesize of output 24 [2021-11-05 13:26:09,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2021-11-05 13:26:09,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-11-05 13:26:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 67 [2021-11-05 13:26:09,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:09,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 80 [2021-11-05 13:26:10,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 95 [2021-11-05 13:26:10,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 110 [2021-11-05 13:26:10,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:10,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 122 [2021-11-05 13:26:11,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:11,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,488 WARN L230 SmtUtils]: Spent 16.43s on a formula simplification. DAG size of input: 99 DAG size of output: 47 [2021-11-05 13:26:27,490 INFO L354 Elim1Store]: treesize reduction 256, result has 25.6 percent of original size [2021-11-05 13:26:27,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 114 treesize of output 145 [2021-11-05 13:26:27,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:27,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:48,526 WARN L230 SmtUtils]: Spent 20.62s on a formula simplification. DAG size of input: 145 DAG size of output: 52 [2021-11-05 13:26:48,527 INFO L354 Elim1Store]: treesize reduction 402, result has 19.9 percent of original size [2021-11-05 13:26:48,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 126 treesize of output 162 [2021-11-05 13:26:49,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:26:49,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:01,629 WARN L230 SmtUtils]: Spent 12.56s on a formula simplification. DAG size of input: 195 DAG size of output: 59 [2021-11-05 13:27:01,630 INFO L354 Elim1Store]: treesize reduction 568, result has 15.7 percent of original size [2021-11-05 13:27:01,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 30 case distinctions, treesize of input 138 treesize of output 173 [2021-11-05 13:27:02,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:14,867 WARN L230 SmtUtils]: Spent 12.63s on a formula simplification. DAG size of input: 249 DAG size of output: 64 [2021-11-05 13:27:14,868 INFO L354 Elim1Store]: treesize reduction 744, result has 13.5 percent of original size [2021-11-05 13:27:14,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 150 treesize of output 188 [2021-11-05 13:27:15,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:15,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:32,418 WARN L230 SmtUtils]: Spent 16.86s on a formula simplification. DAG size of input: 307 DAG size of output: 68 [2021-11-05 13:27:32,419 INFO L354 Elim1Store]: treesize reduction 932, result has 12.1 percent of original size [2021-11-05 13:27:32,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 36 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 162 treesize of output 205 [2021-11-05 13:27:33,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 13:27:46,293 WARN L230 SmtUtils]: Spent 13.04s on a formula simplification. DAG size of input: 369 DAG size of output: 74 [2021-11-05 13:27:46,294 INFO L354 Elim1Store]: treesize reduction 1138, result has 10.7 percent of original size [2021-11-05 13:27:46,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 36 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 69 case distinctions, treesize of input 174 treesize of output 218 [2021-11-05 13:28:01,119 WARN L230 SmtUtils]: Spent 13.83s on a formula simplification. DAG size of input: 577 DAG size of output: 77 [2021-11-05 13:28:01,120 INFO L354 Elim1Store]: treesize reduction 1748, result has 7.4 percent of original size [2021-11-05 13:28:01,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 120 case distinctions, treesize of input 154 treesize of output 195 [2021-11-05 13:28:04,767 INFO L354 Elim1Store]: treesize reduction 1515, result has 0.1 percent of original size [2021-11-05 13:28:04,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 167 treesize of output 62 [2021-11-05 13:28:04,985 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 21 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 13:28:04,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15