./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/unreach-call.prp --file /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 87fd6ee1 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 /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.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 530a040f161b7ec26fa064cc2f172129cf8bf60a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.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 530a040f161b7ec26fa064cc2f172129cf8bf60a .................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: TYPE ERROR --- Real Ultimate output --- This is Ultimate 0.2.1-87fd6ee [2020-12-04 19:02:59,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 19:02:59,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 19:02:59,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 19:02:59,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 19:02:59,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 19:02:59,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 19:02:59,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 19:02:59,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 19:02:59,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 19:02:59,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 19:02:59,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 19:02:59,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 19:02:59,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 19:02:59,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 19:02:59,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 19:02:59,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 19:02:59,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 19:02:59,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 19:02:59,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 19:02:59,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 19:02:59,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 19:02:59,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 19:02:59,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 19:02:59,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 19:02:59,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 19:02:59,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 19:02:59,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 19:02:59,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 19:02:59,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 19:02:59,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 19:02:59,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 19:02:59,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 19:02:59,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 19:02:59,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 19:02:59,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 19:02:59,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 19:02:59,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 19:02:59,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 19:02:59,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 19:02:59,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 19:02:59,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-04 19:02:59,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 19:02:59,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 19:02:59,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 19:02:59,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 19:02:59,892 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 19:02:59,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 19:02:59,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-04 19:02:59,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 19:02:59,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 19:02:59,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 19:02:59,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 19:02:59,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 19:02:59,899 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 19:02:59,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 19:02:59,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 19:02:59,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 19:02:59,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 19:02:59,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 19:02:59,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 19:02:59,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 19:02:59,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 19:02:59,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-04 19:02:59,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-04 19:02:59,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 19:02:59,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 19:02:59,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530a040f161b7ec26fa064cc2f172129cf8bf60a [2020-12-04 19:03:00,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 19:03:00,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 19:03:00,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 19:03:00,723 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 19:03:00,725 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 19:03:00,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2020-12-04 19:03:00,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d031784f3/86f026b300bd4e088dba147ffc425857/FLAG079e3ed25 [2020-12-04 19:03:02,844 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 19:03:02,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2020-12-04 19:03:02,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d031784f3/86f026b300bd4e088dba147ffc425857/FLAG079e3ed25 [2020-12-04 19:03:03,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d031784f3/86f026b300bd4e088dba147ffc425857 [2020-12-04 19:03:03,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 19:03:03,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 19:03:03,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 19:03:03,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 19:03:03,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 19:03:03,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 07:03:03" (1/1) ... [2020-12-04 19:03:03,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ecca1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:03, skipping insertion in model container [2020-12-04 19:03:03,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 07:03:03" (1/1) ... [2020-12-04 19:03:03,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 19:03:03,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-04 19:03:04,230 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4500,4513] [2020-12-04 19:03:04,251 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4560,4573] [2020-12-04 19:03:04,317 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-04 19:03:04,342 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-04 19:03:06,768 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,774 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,783 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,789 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,797 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,829 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,831 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,835 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,837 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,841 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,843 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,847 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:06,849 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:07,747 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-04 19:03:07,753 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-04 19:03:07,757 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-04 19:03:07,759 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-04 19:03:07,761 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-04 19:03:07,764 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-04 19:03:07,767 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-04 19:03:07,771 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-04 19:03:07,774 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-04 19:03:07,777 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-04 19:03:08,249 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-04 19:03:08,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-04 19:03:08,393 INFO L203 MainTranslator]: Completed pre-run [2020-12-04 19:03:08,441 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4500,4513] [2020-12-04 19:03:08,452 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4560,4573] [2020-12-04 19:03:08,468 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-04 19:03:08,471 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-04 19:03:08,706 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,709 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,713 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,716 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,719 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,736 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,739 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,744 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,749 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,754 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,757 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,759 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,761 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:03:08,875 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-04 19:03:08,877 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-04 19:03:08,880 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-04 19:03:08,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-04 19:03:08,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-04 19:03:08,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-04 19:03:08,910 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-04 19:03:08,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-04 19:03:08,915 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-04 19:03:08,916 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-04 19:03:09,045 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-04 19:03:09,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-04 19:03:10,776 INFO L208 MainTranslator]: Completed translation [2020-12-04 19:03:10,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10 WrapperNode [2020-12-04 19:03:10,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 19:03:10,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 19:03:10,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 19:03:10,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 19:03:10,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 19:03:11,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-04 19:03:11,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-04 19:03:11,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-04 19:03:11,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... [2020-12-04 19:03:11,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-04 19:03:11,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-04 19:03:11,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-04 19:03:11,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-04 19:03:11,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 19:03:11,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-04 19:03:11,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-04 19:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-04 19:03:11,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-04 19:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-04 19:03:11,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-04 19:03:11,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-04 19:03:12,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-04 19:03:12,884 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-04 19:03:12,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 07:03:12 BoogieIcfgContainer [2020-12-04 19:03:12,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-04 19:03:12,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-04 19:03:12,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-04 19:03:12,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-04 19:03:12,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.12 07:03:03" (1/3) ... [2020-12-04 19:03:12,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471c912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 07:03:12, skipping insertion in model container [2020-12-04 19:03:12,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:03:10" (2/3) ... [2020-12-04 19:03:12,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@471c912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.12 07:03:12, skipping insertion in model container [2020-12-04 19:03:12,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.12 07:03:12" (3/3) ... [2020-12-04 19:03:12,905 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_node_reset_harness-1.i [2020-12-04 19:03:12,935 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-04 19:03:12,945 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-04 19:03:12,969 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-04 19:03:13,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-04 19:03:13,025 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-04 19:03:13,025 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-04 19:03:13,026 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-04 19:03:13,026 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-04 19:03:13,026 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-04 19:03:13,027 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-04 19:03:13,027 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-04 19:03:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-12-04 19:03:13,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-04 19:03:13,072 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:13,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:13,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:13,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:13,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1935931966, now seen corresponding path program 1 times [2020-12-04 19:03:13,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:13,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596932775] [2020-12-04 19:03:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:13,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596932775] [2020-12-04 19:03:13,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-04 19:03:13,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-04 19:03:13,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094369666] [2020-12-04 19:03:13,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-04 19:03:13,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:13,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-04 19:03:13,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-04 19:03:13,812 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-12-04 19:03:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:13,882 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-12-04 19:03:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-04 19:03:13,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-04 19:03:13,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:13,914 INFO L225 Difference]: With dead ends: 59 [2020-12-04 19:03:13,915 INFO L226 Difference]: Without dead ends: 26 [2020-12-04 19:03:13,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-04 19:03:13,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-04 19:03:14,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-04 19:03:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-04 19:03:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-12-04 19:03:14,024 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2020-12-04 19:03:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:14,027 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-12-04 19:03:14,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-04 19:03:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-12-04 19:03:14,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-04 19:03:14,031 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:14,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:14,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-04 19:03:14,044 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:14,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:14,052 INFO L82 PathProgramCache]: Analyzing trace with hash 712013687, now seen corresponding path program 1 times [2020-12-04 19:03:14,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:14,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377933398] [2020-12-04 19:03:14,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:14,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377933398] [2020-12-04 19:03:14,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-04 19:03:14,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-04 19:03:14,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105083565] [2020-12-04 19:03:14,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-04 19:03:14,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:14,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-04 19:03:14,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-04 19:03:14,446 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2020-12-04 19:03:14,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:14,520 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-12-04 19:03:14,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-04 19:03:14,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-04 19:03:14,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:14,525 INFO L225 Difference]: With dead ends: 48 [2020-12-04 19:03:14,528 INFO L226 Difference]: Without dead ends: 27 [2020-12-04 19:03:14,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-04 19:03:14,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-04 19:03:14,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-04 19:03:14,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-04 19:03:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-04 19:03:14,572 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 13 [2020-12-04 19:03:14,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:14,574 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-04 19:03:14,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-04 19:03:14,575 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-04 19:03:14,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-04 19:03:14,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:14,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:14,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-04 19:03:14,578 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:14,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:14,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1602855479, now seen corresponding path program 1 times [2020-12-04 19:03:14,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:14,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824040329] [2020-12-04 19:03:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:14,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824040329] [2020-12-04 19:03:14,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651612766] [2020-12-04 19:03:14,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:15,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-04 19:03:15,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:15,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:15,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:15,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-04 19:03:15,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309380811] [2020-12-04 19:03:15,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 19:03:15,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:15,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 19:03:15,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-04 19:03:15,498 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 6 states. [2020-12-04 19:03:15,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:15,554 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-12-04 19:03:15,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-04 19:03:15,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-04 19:03:15,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:15,561 INFO L225 Difference]: With dead ends: 49 [2020-12-04 19:03:15,564 INFO L226 Difference]: Without dead ends: 28 [2020-12-04 19:03:15,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-04 19:03:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-04 19:03:15,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-04 19:03:15,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-04 19:03:15,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-12-04 19:03:15,594 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 14 [2020-12-04 19:03:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:15,595 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-12-04 19:03:15,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 19:03:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-12-04 19:03:15,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-04 19:03:15,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:15,606 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:15,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-04 19:03:15,823 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:15,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:15,825 INFO L82 PathProgramCache]: Analyzing trace with hash -845820041, now seen corresponding path program 2 times [2020-12-04 19:03:15,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:15,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570703788] [2020-12-04 19:03:15,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:16,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:16,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570703788] [2020-12-04 19:03:16,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545443367] [2020-12-04 19:03:16,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:16,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-04 19:03:16,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:16,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-04 19:03:16,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:16,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-04 19:03:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-04 19:03:16,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-04 19:03:16,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2020-12-04 19:03:16,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594923258] [2020-12-04 19:03:16,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-04 19:03:16,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:16,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-04 19:03:16,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-04 19:03:16,437 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-12-04 19:03:16,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:16,652 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-12-04 19:03:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-04 19:03:16,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-04 19:03:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:16,657 INFO L225 Difference]: With dead ends: 44 [2020-12-04 19:03:16,658 INFO L226 Difference]: Without dead ends: 35 [2020-12-04 19:03:16,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-12-04 19:03:16,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-04 19:03:16,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-12-04 19:03:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-04 19:03:16,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-12-04 19:03:16,673 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2020-12-04 19:03:16,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:16,674 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-12-04 19:03:16,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-04 19:03:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-12-04 19:03:16,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-04 19:03:16,676 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:16,676 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:16,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:16,891 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:16,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:16,894 INFO L82 PathProgramCache]: Analyzing trace with hash -844211327, now seen corresponding path program 1 times [2020-12-04 19:03:16,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:16,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876687026] [2020-12-04 19:03:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:17,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876687026] [2020-12-04 19:03:17,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341043425] [2020-12-04 19:03:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:17,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-04 19:03:17,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:17,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:17,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-04 19:03:17,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402326896] [2020-12-04 19:03:17,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-04 19:03:17,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:17,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-04 19:03:17,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-12-04 19:03:17,402 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 8 states. [2020-12-04 19:03:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:17,442 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-12-04 19:03:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-04 19:03:17,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-12-04 19:03:17,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:17,446 INFO L225 Difference]: With dead ends: 52 [2020-12-04 19:03:17,447 INFO L226 Difference]: Without dead ends: 30 [2020-12-04 19:03:17,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2020-12-04 19:03:17,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-04 19:03:17,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-04 19:03:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-04 19:03:17,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-12-04 19:03:17,459 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 15 [2020-12-04 19:03:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:17,459 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-12-04 19:03:17,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-04 19:03:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-12-04 19:03:17,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-04 19:03:17,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:17,462 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:17,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:17,678 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:17,679 INFO L82 PathProgramCache]: Analyzing trace with hash 556258881, now seen corresponding path program 2 times [2020-12-04 19:03:17,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:17,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30053378] [2020-12-04 19:03:17,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:17,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30053378] [2020-12-04 19:03:17,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56214081] [2020-12-04 19:03:17,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:18,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-04 19:03:18,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:18,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-04 19:03:18,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:18,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:18,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:18,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-04 19:03:18,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026281663] [2020-12-04 19:03:18,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-04 19:03:18,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:18,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-04 19:03:18,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-12-04 19:03:18,439 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 10 states. [2020-12-04 19:03:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:18,508 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-12-04 19:03:18,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-04 19:03:18,509 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-12-04 19:03:18,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:18,511 INFO L225 Difference]: With dead ends: 53 [2020-12-04 19:03:18,512 INFO L226 Difference]: Without dead ends: 31 [2020-12-04 19:03:18,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2020-12-04 19:03:18,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-04 19:03:18,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-04 19:03:18,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-04 19:03:18,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-12-04 19:03:18,539 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 16 [2020-12-04 19:03:18,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:18,543 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-12-04 19:03:18,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-04 19:03:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-12-04 19:03:18,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-04 19:03:18,548 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:18,548 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:18,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:18,763 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:18,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:18,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1021162369, now seen corresponding path program 3 times [2020-12-04 19:03:18,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:18,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132811358] [2020-12-04 19:03:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:18,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132811358] [2020-12-04 19:03:18,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119371693] [2020-12-04 19:03:18,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:19,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-04 19:03:19,244 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:19,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-04 19:03:19,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:19,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:19,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-12-04 19:03:19,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424751666] [2020-12-04 19:03:19,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-04 19:03:19,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:19,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-04 19:03:19,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-12-04 19:03:19,487 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 12 states. [2020-12-04 19:03:19,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:19,560 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-12-04 19:03:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-04 19:03:19,565 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-04 19:03:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:19,569 INFO L225 Difference]: With dead ends: 54 [2020-12-04 19:03:19,570 INFO L226 Difference]: Without dead ends: 32 [2020-12-04 19:03:19,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2020-12-04 19:03:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-04 19:03:19,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-04 19:03:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-04 19:03:19,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-12-04 19:03:19,601 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2020-12-04 19:03:19,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:19,602 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-12-04 19:03:19,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-04 19:03:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-12-04 19:03:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-04 19:03:19,606 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:19,607 INFO L422 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:19,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-04 19:03:19,823 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:19,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:19,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1746698687, now seen corresponding path program 4 times [2020-12-04 19:03:19,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:19,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328846228] [2020-12-04 19:03:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:20,225 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:20,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328846228] [2020-12-04 19:03:20,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019109883] [2020-12-04 19:03:20,227 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:20,430 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-04 19:03:20,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:20,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-04 19:03:20,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:20,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:20,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-12-04 19:03:20,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796268371] [2020-12-04 19:03:20,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-04 19:03:20,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:20,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-04 19:03:20,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-12-04 19:03:20,736 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 14 states. [2020-12-04 19:03:20,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:20,804 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-12-04 19:03:20,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-04 19:03:20,805 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-12-04 19:03:20,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:20,806 INFO L225 Difference]: With dead ends: 55 [2020-12-04 19:03:20,806 INFO L226 Difference]: Without dead ends: 33 [2020-12-04 19:03:20,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2020-12-04 19:03:20,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-04 19:03:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-04 19:03:20,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-04 19:03:20,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2020-12-04 19:03:20,816 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 18 [2020-12-04 19:03:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:20,816 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2020-12-04 19:03:20,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-04 19:03:20,816 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2020-12-04 19:03:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-04 19:03:20,817 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:20,817 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:21,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:21,032 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:21,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1651045503, now seen corresponding path program 5 times [2020-12-04 19:03:21,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:21,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124152993] [2020-12-04 19:03:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:21,273 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:21,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124152993] [2020-12-04 19:03:21,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511178758] [2020-12-04 19:03:21,274 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:21,527 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-04 19:03:21,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:21,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-04 19:03:21,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:21,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:21,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-04 19:03:21,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811083941] [2020-12-04 19:03:21,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-04 19:03:21,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:21,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-04 19:03:21,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-12-04 19:03:21,764 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 16 states. [2020-12-04 19:03:21,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:21,828 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2020-12-04 19:03:21,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-04 19:03:21,829 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-12-04 19:03:21,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:21,830 INFO L225 Difference]: With dead ends: 56 [2020-12-04 19:03:21,830 INFO L226 Difference]: Without dead ends: 34 [2020-12-04 19:03:21,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=135, Unknown=0, NotChecked=0, Total=240 [2020-12-04 19:03:21,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-04 19:03:21,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-04 19:03:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-04 19:03:21,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-12-04 19:03:21,838 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 19 [2020-12-04 19:03:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:21,838 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-12-04 19:03:21,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-04 19:03:21,839 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-12-04 19:03:21,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-04 19:03:21,839 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:21,840 INFO L422 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:22,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:22,054 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:22,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:22,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1314203201, now seen corresponding path program 6 times [2020-12-04 19:03:22,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:22,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56714667] [2020-12-04 19:03:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:22,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56714667] [2020-12-04 19:03:22,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501808697] [2020-12-04 19:03:22,355 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:22,671 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2020-12-04 19:03:22,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:22,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-04 19:03:22,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:22,896 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:22,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:22,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-12-04 19:03:22,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887741242] [2020-12-04 19:03:22,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-04 19:03:22,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:22,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-04 19:03:22,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=174, Unknown=0, NotChecked=0, Total=306 [2020-12-04 19:03:22,900 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 18 states. [2020-12-04 19:03:22,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:22,966 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2020-12-04 19:03:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-04 19:03:22,968 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 20 [2020-12-04 19:03:22,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:22,969 INFO L225 Difference]: With dead ends: 57 [2020-12-04 19:03:22,970 INFO L226 Difference]: Without dead ends: 35 [2020-12-04 19:03:22,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=132, Invalid=174, Unknown=0, NotChecked=0, Total=306 [2020-12-04 19:03:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-04 19:03:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-04 19:03:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-04 19:03:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-12-04 19:03:22,980 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2020-12-04 19:03:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:22,980 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-12-04 19:03:22,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-04 19:03:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-12-04 19:03:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-04 19:03:22,981 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:22,982 INFO L422 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:23,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-04 19:03:23,196 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:23,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1252367487, now seen corresponding path program 7 times [2020-12-04 19:03:23,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:23,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180413454] [2020-12-04 19:03:23,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:23,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180413454] [2020-12-04 19:03:23,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857999530] [2020-12-04 19:03:23,500 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:23,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-04 19:03:23,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:24,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:24,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2020-12-04 19:03:24,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136007244] [2020-12-04 19:03:24,068 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-04 19:03:24,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:24,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-04 19:03:24,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=218, Unknown=0, NotChecked=0, Total=380 [2020-12-04 19:03:24,071 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 20 states. [2020-12-04 19:03:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:24,186 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2020-12-04 19:03:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-04 19:03:24,187 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-12-04 19:03:24,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:24,194 INFO L225 Difference]: With dead ends: 58 [2020-12-04 19:03:24,194 INFO L226 Difference]: Without dead ends: 36 [2020-12-04 19:03:24,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=218, Unknown=0, NotChecked=0, Total=380 [2020-12-04 19:03:24,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-04 19:03:24,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-04 19:03:24,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-04 19:03:24,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-12-04 19:03:24,227 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 21 [2020-12-04 19:03:24,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:24,231 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-04 19:03:24,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-04 19:03:24,231 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-12-04 19:03:24,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-04 19:03:24,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:24,237 INFO L422 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:24,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:24,448 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:24,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:24,449 INFO L82 PathProgramCache]: Analyzing trace with hash 788319809, now seen corresponding path program 8 times [2020-12-04 19:03:24,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:24,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672052692] [2020-12-04 19:03:24,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:24,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672052692] [2020-12-04 19:03:24,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279283129] [2020-12-04 19:03:24,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:25,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-04 19:03:25,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:25,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-04 19:03:25,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:25,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:25,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2020-12-04 19:03:25,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845469489] [2020-12-04 19:03:25,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-04 19:03:25,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:25,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-04 19:03:25,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2020-12-04 19:03:25,294 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 22 states. [2020-12-04 19:03:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:25,350 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-12-04 19:03:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-04 19:03:25,351 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2020-12-04 19:03:25,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:25,353 INFO L225 Difference]: With dead ends: 59 [2020-12-04 19:03:25,353 INFO L226 Difference]: Without dead ends: 37 [2020-12-04 19:03:25,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2020-12-04 19:03:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-04 19:03:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-04 19:03:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-04 19:03:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-12-04 19:03:25,360 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2020-12-04 19:03:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:25,361 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-12-04 19:03:25,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-04 19:03:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-12-04 19:03:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-04 19:03:25,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:25,362 INFO L422 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:25,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:25,576 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:25,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:25,577 INFO L82 PathProgramCache]: Analyzing trace with hash -374883455, now seen corresponding path program 9 times [2020-12-04 19:03:25,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:25,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164076419] [2020-12-04 19:03:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:25,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164076419] [2020-12-04 19:03:25,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196127111] [2020-12-04 19:03:25,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:26,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-04 19:03:26,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:26,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-04 19:03:26,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:27,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:27,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2020-12-04 19:03:27,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134151930] [2020-12-04 19:03:27,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-04 19:03:27,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-04 19:03:27,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=321, Unknown=0, NotChecked=0, Total=552 [2020-12-04 19:03:27,168 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 24 states. [2020-12-04 19:03:27,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:27,256 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2020-12-04 19:03:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-04 19:03:27,258 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2020-12-04 19:03:27,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:27,259 INFO L225 Difference]: With dead ends: 60 [2020-12-04 19:03:27,260 INFO L226 Difference]: Without dead ends: 38 [2020-12-04 19:03:27,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=231, Invalid=321, Unknown=0, NotChecked=0, Total=552 [2020-12-04 19:03:27,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-04 19:03:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-04 19:03:27,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-04 19:03:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-12-04 19:03:27,269 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 23 [2020-12-04 19:03:27,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:27,270 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-12-04 19:03:27,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-04 19:03:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-12-04 19:03:27,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-04 19:03:27,272 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:27,272 INFO L422 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:27,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-04 19:03:27,487 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:27,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:27,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2074446271, now seen corresponding path program 10 times [2020-12-04 19:03:27,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:27,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619544611] [2020-12-04 19:03:27,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:27,787 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:27,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619544611] [2020-12-04 19:03:27,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566285066] [2020-12-04 19:03:27,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:27,926 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-04 19:03:27,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:27,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-04 19:03:27,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:28,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:28,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2020-12-04 19:03:28,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515810528] [2020-12-04 19:03:28,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-04 19:03:28,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:28,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-04 19:03:28,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=380, Unknown=0, NotChecked=0, Total=650 [2020-12-04 19:03:28,286 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 26 states. [2020-12-04 19:03:28,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:28,374 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2020-12-04 19:03:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-04 19:03:28,375 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 24 [2020-12-04 19:03:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:28,375 INFO L225 Difference]: With dead ends: 61 [2020-12-04 19:03:28,375 INFO L226 Difference]: Without dead ends: 39 [2020-12-04 19:03:28,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=270, Invalid=380, Unknown=0, NotChecked=0, Total=650 [2020-12-04 19:03:28,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-04 19:03:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-04 19:03:28,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-04 19:03:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-12-04 19:03:28,384 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 24 [2020-12-04 19:03:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:28,384 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-12-04 19:03:28,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-04 19:03:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-12-04 19:03:28,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-04 19:03:28,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:28,386 INFO L422 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:28,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-04 19:03:28,600 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:28,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1073681281, now seen corresponding path program 11 times [2020-12-04 19:03:28,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:28,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181742718] [2020-12-04 19:03:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:28,955 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:28,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181742718] [2020-12-04 19:03:28,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991866133] [2020-12-04 19:03:28,956 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:30,005 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-12-04 19:03:30,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:30,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-04 19:03:30,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:30,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:30,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2020-12-04 19:03:30,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475503143] [2020-12-04 19:03:30,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-04 19:03:30,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:30,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-04 19:03:30,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=444, Unknown=0, NotChecked=0, Total=756 [2020-12-04 19:03:30,439 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 28 states. [2020-12-04 19:03:30,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:30,534 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2020-12-04 19:03:30,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-04 19:03:30,535 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 25 [2020-12-04 19:03:30,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:30,536 INFO L225 Difference]: With dead ends: 62 [2020-12-04 19:03:30,536 INFO L226 Difference]: Without dead ends: 40 [2020-12-04 19:03:30,538 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=444, Unknown=0, NotChecked=0, Total=756 [2020-12-04 19:03:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-04 19:03:30,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-04 19:03:30,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-04 19:03:30,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-04 19:03:30,545 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 25 [2020-12-04 19:03:30,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:30,545 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-04 19:03:30,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-04 19:03:30,545 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-12-04 19:03:30,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-04 19:03:30,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:30,546 INFO L422 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:30,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-04 19:03:30,761 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:30,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:30,763 INFO L82 PathProgramCache]: Analyzing trace with hash -118612415, now seen corresponding path program 12 times [2020-12-04 19:03:30,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:30,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232287472] [2020-12-04 19:03:30,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:31,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232287472] [2020-12-04 19:03:31,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860606876] [2020-12-04 19:03:31,114 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:34,165 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2020-12-04 19:03:34,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:34,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-04 19:03:34,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:34,665 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:34,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:34,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2020-12-04 19:03:34,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048183596] [2020-12-04 19:03:34,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-04 19:03:34,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:34,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-04 19:03:34,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=513, Unknown=0, NotChecked=0, Total=870 [2020-12-04 19:03:34,669 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 30 states. [2020-12-04 19:03:34,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:34,772 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2020-12-04 19:03:34,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-04 19:03:34,773 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 26 [2020-12-04 19:03:34,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:34,775 INFO L225 Difference]: With dead ends: 63 [2020-12-04 19:03:34,775 INFO L226 Difference]: Without dead ends: 41 [2020-12-04 19:03:34,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=357, Invalid=513, Unknown=0, NotChecked=0, Total=870 [2020-12-04 19:03:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-04 19:03:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-04 19:03:34,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-04 19:03:34,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-12-04 19:03:34,784 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 26 [2020-12-04 19:03:34,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:34,784 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-12-04 19:03:34,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-04 19:03:34,784 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-12-04 19:03:34,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-04 19:03:34,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:34,785 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:35,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:35,001 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:35,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1574988673, now seen corresponding path program 13 times [2020-12-04 19:03:35,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:35,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704140927] [2020-12-04 19:03:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:35,421 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:35,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704140927] [2020-12-04 19:03:35,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220804684] [2020-12-04 19:03:35,423 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:35,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-04 19:03:35,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:36,168 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:36,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:03:36,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-04 19:03:36,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814195483] [2020-12-04 19:03:36,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-04 19:03:36,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:03:36,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-04 19:03:36,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=587, Unknown=0, NotChecked=0, Total=992 [2020-12-04 19:03:36,174 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 32 states. [2020-12-04 19:03:36,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-04 19:03:36,299 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-12-04 19:03:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-04 19:03:36,300 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 27 [2020-12-04 19:03:36,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-04 19:03:36,301 INFO L225 Difference]: With dead ends: 64 [2020-12-04 19:03:36,301 INFO L226 Difference]: Without dead ends: 42 [2020-12-04 19:03:36,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=405, Invalid=587, Unknown=0, NotChecked=0, Total=992 [2020-12-04 19:03:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-04 19:03:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-04 19:03:36,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-04 19:03:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-12-04 19:03:36,310 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 27 [2020-12-04 19:03:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-04 19:03:36,311 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-12-04 19:03:36,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-04 19:03:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-12-04 19:03:36,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-04 19:03:36,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-04 19:03:36,312 INFO L422 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-04 19:03:36,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-04 19:03:36,528 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-04 19:03:36,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-04 19:03:36,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1757952447, now seen corresponding path program 14 times [2020-12-04 19:03:36,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-04 19:03:36,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296528894] [2020-12-04 19:03:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-04 19:03:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-04 19:03:38,174 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 78 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:03:38,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296528894] [2020-12-04 19:03:38,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054555526] [2020-12-04 19:03:38,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-04 19:03:38,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-04 19:03:38,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-04 19:03:38,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 52 conjunts are in the unsatisfiable core [2020-12-04 19:03:38,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-04 19:03:38,675 INFO L382 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 [2020-12-04 19:03:38,677 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:38,697 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:38,700 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-04 19:03:38,701 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-12-04 19:03:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:38,810 INFO L382 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 [2020-12-04 19:03:38,816 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:38,839 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:38,842 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:38,843 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:34 [2020-12-04 19:03:39,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,033 INFO L382 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 [2020-12-04 19:03:39,038 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:39,069 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:39,078 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:39,079 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:52, output treesize:48 [2020-12-04 19:03:39,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:39,295 INFO L382 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 [2020-12-04 19:03:39,299 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:39,347 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:39,389 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:39,390 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:66, output treesize:62 [2020-12-04 19:03:41,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:41,800 INFO L382 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 [2020-12-04 19:03:41,812 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:41,968 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-04 19:03:41,973 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:41,998 INFO L547 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:42,000 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:80, output treesize:76 [2020-12-04 19:03:42,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:42,771 INFO L382 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 [2020-12-04 19:03:42,786 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:42,900 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-04 19:03:42,902 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:42,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:42,933 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:94, output treesize:90 [2020-12-04 19:03:47,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:47,423 INFO L382 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 [2020-12-04 19:03:47,430 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:47,534 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-04 19:03:47,536 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:47,561 INFO L547 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:47,562 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:108, output treesize:104 [2020-12-04 19:03:51,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:51,619 INFO L382 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 75 treesize of output 92 [2020-12-04 19:03:51,626 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:51,741 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-04 19:03:51,744 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:51,780 INFO L547 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:51,782 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:122, output treesize:118 [2020-12-04 19:03:58,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:03:58,641 INFO L244 Elim1Store]: Index analysis took 140 ms [2020-12-04 19:03:58,646 INFO L382 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 [2020-12-04 19:03:58,656 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:03:58,786 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-04 19:03:58,788 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:03:58,818 INFO L547 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2020-12-04 19:03:58,819 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:136, output treesize:132 [2020-12-04 19:04:09,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:09,601 INFO L244 Elim1Store]: Index analysis took 172 ms [2020-12-04 19:04:09,605 INFO L382 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 [2020-12-04 19:04:09,612 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:04:09,748 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-12-04 19:04:09,749 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:04:09,773 INFO L547 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2020-12-04 19:04:09,774 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:150, output treesize:146 [2020-12-04 19:04:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:23,866 INFO L244 Elim1Store]: Index analysis took 101 ms [2020-12-04 19:04:23,870 INFO L382 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 102 treesize of output 128 [2020-12-04 19:04:23,875 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:04:23,998 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-04 19:04:24,009 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:04:24,031 INFO L547 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-2 vars, End of recursive call: 10 dim-0 vars, and 1 xjuncts. [2020-12-04 19:04:24,032 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 11 variables, input treesize:164, output treesize:160 [2020-12-04 19:04:39,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:04:39,361 INFO L244 Elim1Store]: Index analysis took 243 ms [2020-12-04 19:04:39,372 INFO L382 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 [2020-12-04 19:04:39,384 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:04:39,560 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-12-04 19:04:39,562 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:04:39,601 INFO L547 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-2 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2020-12-04 19:04:39,602 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 12 variables, input treesize:178, output treesize:174 [2020-12-04 19:05:00,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:00,899 INFO L244 Elim1Store]: Index analysis took 191 ms [2020-12-04 19:05:00,904 INFO L382 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 [2020-12-04 19:05:00,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:05:01,072 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-12-04 19:05:01,074 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:05:01,099 INFO L547 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 1 xjuncts. [2020-12-04 19:05:01,100 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 13 variables, input treesize:187, output treesize:183 [2020-12-04 19:05:32,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-04 19:05:32,915 INFO L244 Elim1Store]: Index analysis took 224 ms [2020-12-04 19:05:33,478 WARN L197 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-12-04 19:05:33,480 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:05:33,481 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 13 case distinctions, treesize of input 129 treesize of output 496 [2020-12-04 19:05:33,508 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:05:34,327 WARN L197 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 90 [2020-12-04 19:05:34,329 INFO L625 ElimStorePlain]: treesize reduction 232, result has 45.3 percent of original size [2020-12-04 19:05:34,354 INFO L547 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 1 dim-2 vars, End of recursive call: 13 dim-0 vars, and 1 xjuncts. [2020-12-04 19:05:34,355 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 14 variables, input treesize:196, output treesize:192 [2020-12-04 19:06:14,753 WARN L197 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-12-04 19:06:24,771 WARN L197 SmtUtils]: Spent 9.92 s on a formula simplification. DAG size of input: 446 DAG size of output: 442 [2020-12-04 19:06:24,776 INFO L348 Elim1Store]: treesize reduction 20, result has 98.5 percent of original size [2020-12-04 19:06:24,777 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 91 case distinctions, treesize of input 181 treesize of output 1388 [2020-12-04 19:06:24,853 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:06:25,506 WARN L197 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 84 [2020-12-04 19:06:25,508 INFO L625 ElimStorePlain]: treesize reduction 216, result has 45.9 percent of original size [2020-12-04 19:06:25,532 INFO L547 ElimStorePlain]: Start of recursive call 1: 13 dim-0 vars, 1 dim-2 vars, End of recursive call: 13 dim-0 vars, and 1 xjuncts. [2020-12-04 19:06:25,533 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 14 variables, input treesize:239, output treesize:183 [2020-12-04 19:07:07,447 WARN L197 SmtUtils]: Spent 2.52 s on a formula simplification that was a NOOP. DAG size: 351 [2020-12-04 19:07:07,450 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:07:07,451 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 123 treesize of output 955 [2020-12-04 19:07:07,485 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-04 19:07:07,547 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-04 19:07:07,572 INFO L757 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2020-12-04 19:07:07,575 INFO L547 ElimStorePlain]: Start of recursive call 1: 14 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-04 19:07:07,577 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 15 variables, input treesize:181, output treesize:3 [2020-12-04 19:07:07,618 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 33 proven. 53 refuted. 34 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-04 19:07:07,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-04 19:07:07,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20] total 39 [2020-12-04 19:07:07,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446918749] [2020-12-04 19:07:07,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-12-04 19:07:07,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-04 19:07:07,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-12-04 19:07:07,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1183, Unknown=70, NotChecked=0, Total=1482 [2020-12-04 19:07:07,630 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 39 states. [2020-12-04 19:08:35,066 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-04 19:09:35,113 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-04 19:09:35,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-04 19:09:35,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-04 19:09:35,320 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:899) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) 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$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) 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:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 45 more [2020-12-04 19:09:35,333 INFO L168 Benchmark]: Toolchain (without parser) took 391946.25 ms. Allocated memory was 54.5 MB in the beginning and 257.9 MB in the end (delta: 203.4 MB). Free memory was 33.0 MB in the beginning and 204.3 MB in the end (delta: -171.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:35,334 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 22.0 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 19:09:35,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 7389.17 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 32.8 MB in the beginning and 36.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:35,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 334.21 ms. Allocated memory is still 100.7 MB. Free memory was 36.7 MB in the beginning and 31.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:35,336 INFO L168 Benchmark]: Boogie Preprocessor took 151.19 ms. Allocated memory is still 100.7 MB. Free memory was 31.4 MB in the beginning and 29.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:35,337 INFO L168 Benchmark]: RCFGBuilder took 1612.60 ms. Allocated memory is still 100.7 MB. Free memory was 29.3 MB in the beginning and 45.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:35,338 INFO L168 Benchmark]: TraceAbstraction took 382440.72 ms. Allocated memory was 100.7 MB in the beginning and 257.9 MB in the end (delta: 157.3 MB). Free memory was 44.1 MB in the beginning and 204.3 MB in the end (delta: -160.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 19:09:35,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 22.0 MB in the beginning and 22.0 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 7389.17 ms. Allocated memory was 54.5 MB in the beginning and 100.7 MB in the end (delta: 46.1 MB). Free memory was 32.8 MB in the beginning and 36.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 334.21 ms. Allocated memory is still 100.7 MB. Free memory was 36.7 MB in the beginning and 31.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 151.19 ms. Allocated memory is still 100.7 MB. Free memory was 31.4 MB in the beginning and 29.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1612.60 ms. Allocated memory is still 100.7 MB. Free memory was 29.3 MB in the beginning and 45.2 MB in the end (delta: -15.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 382440.72 ms. Allocated memory was 100.7 MB in the beginning and 257.9 MB in the end (delta: 157.3 MB). Free memory was 44.1 MB in the beginning and 204.3 MB in the end (delta: -160.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-87fd6ee [2020-12-04 19:09:40,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-04 19:09:40,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-04 19:09:40,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-04 19:09:40,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-04 19:09:40,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-04 19:09:40,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-04 19:09:40,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-04 19:09:40,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-04 19:09:40,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-04 19:09:40,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-04 19:09:40,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-04 19:09:40,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-04 19:09:40,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-04 19:09:40,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-04 19:09:40,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-04 19:09:40,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-04 19:09:40,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-04 19:09:40,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-04 19:09:40,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-04 19:09:40,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-04 19:09:40,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-04 19:09:40,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-04 19:09:40,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-04 19:09:40,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-04 19:09:40,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-04 19:09:40,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-04 19:09:40,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-04 19:09:40,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-04 19:09:40,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-04 19:09:40,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-04 19:09:40,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-04 19:09:40,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-04 19:09:40,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-04 19:09:40,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-04 19:09:40,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-04 19:09:40,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-04 19:09:40,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-04 19:09:40,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-04 19:09:40,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-04 19:09:40,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-04 19:09:40,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-12-04 19:09:40,303 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-04 19:09:40,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-04 19:09:40,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-04 19:09:40,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-04 19:09:40,309 INFO L138 SettingsManager]: * Use SBE=true [2020-12-04 19:09:40,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-04 19:09:40,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-04 19:09:40,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-04 19:09:40,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-04 19:09:40,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-04 19:09:40,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-04 19:09:40,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-04 19:09:40,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-04 19:09:40,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-04 19:09:40,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-04 19:09:40,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-04 19:09:40,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-04 19:09:40,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-04 19:09:40,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-04 19:09:40,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-04 19:09:40,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-04 19:09:40,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-04 19:09:40,316 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-04 19:09:40,317 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-04 19:09:40,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-04 19:09:40,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-04 19:09:40,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-04 19:09:40,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530a040f161b7ec26fa064cc2f172129cf8bf60a [2020-12-04 19:09:41,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-04 19:09:41,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-04 19:09:41,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-04 19:09:41,327 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-04 19:09:41,330 INFO L275 PluginConnector]: CDTParser initialized [2020-12-04 19:09:41,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2020-12-04 19:09:41,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94300a9c0/746423f5fda9442b86005ca8c7e7d8c5/FLAG886ee754f [2020-12-04 19:09:43,348 INFO L306 CDTParser]: Found 1 translation units. [2020-12-04 19:09:43,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i [2020-12-04 19:09:43,470 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94300a9c0/746423f5fda9442b86005ca8c7e7d8c5/FLAG886ee754f [2020-12-04 19:09:43,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94300a9c0/746423f5fda9442b86005ca8c7e7d8c5 [2020-12-04 19:09:43,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-04 19:09:43,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-04 19:09:43,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-04 19:09:43,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-04 19:09:43,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-04 19:09:43,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 07:09:43" (1/1) ... [2020-12-04 19:09:43,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6897a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:09:43, skipping insertion in model container [2020-12-04 19:09:43,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.12 07:09:43" (1/1) ... [2020-12-04 19:09:43,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-04 19:09:43,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-04 19:09:44,519 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4500,4513] [2020-12-04 19:09:44,534 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4560,4573] [2020-12-04 19:09:44,581 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-04 19:09:44,595 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-04 19:09:46,581 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,582 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,584 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,588 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,591 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,626 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,629 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,635 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,637 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,643 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,646 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,648 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:46,651 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:47,875 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-04 19:09:47,879 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-04 19:09:47,888 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-04 19:09:47,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-04 19:09:47,898 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-04 19:09:47,900 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-04 19:09:47,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-04 19:09:47,903 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-04 19:09:47,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-04 19:09:47,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-04 19:09:48,213 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-04 19:09:48,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-04 19:09:48,329 INFO L203 MainTranslator]: Completed pre-run [2020-12-04 19:09:48,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4500,4513] [2020-12-04 19:09:48,357 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness-1.i[4560,4573] [2020-12-04 19:09:48,362 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-04 19:09:48,364 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-04 19:09:48,439 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,440 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,441 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,443 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,446 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,464 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,466 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,469 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,471 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,475 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,476 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,478 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,480 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-04 19:09:48,588 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-04 19:09:48,590 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-04 19:09:48,593 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-04 19:09:48,595 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-04 19:09:48,597 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-04 19:09:48,599 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-04 19:09:48,601 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-04 19:09:48,603 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-04 19:09:48,605 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-04 19:09:48,607 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-04 19:09:48,681 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-04 19:09:48,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-04 19:09:50,241 INFO L208 MainTranslator]: Completed translation [2020-12-04 19:09:50,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:09:50 WrapperNode [2020-12-04 19:09:50,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-04 19:09:50,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-04 19:09:50,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-04 19:09:50,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-04 19:09:50,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:09:50" (1/1) ... [2020-12-04 19:09:50,331 ERROR L1131 TypeChecker]: C: unsigned long nondet_size_t() { return __VERIFIER_nondet_ulong(); } [263]: Type differs at parameter #res in Procedure[nondet_size_t,[],[],[VarList[C: unsigned long nondet_size_t() { return __VERIFIER_nondet_ulong(); } [263],[#res],NamedType[C_ULONG,[]],null]],null,Body[C: unsigned long nondet_size_t() { return __VERIFIER_nondet_ulong(); } [263],[VariableDeclaration[[VarList[C: __VERIFIER_nondet_ulong() [263],[#t~nondet13],NamedType[C_ULONG,[]],null]]]],[AssignmentStatement[[VariableLHS[#res,]],[IdentifierExpression[#t~nondet13,]]],HavocStatement[[VariableLHS[#t~nondet13,]]],ReturnStatement]]] [2020-12-04 19:09:50,450 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.12 07:09:50" (1/1) ... [2020-12-04 19:09:50,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-04 19:09:50,452 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-12-04 19:09:50,456 INFO L168 Benchmark]: Toolchain (without parser) took 6891.10 ms. Allocated memory was 39.8 MB in the beginning and 98.6 MB in the end (delta: 58.7 MB). Free memory was 19.2 MB in the beginning and 30.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:50,458 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 39.8 MB. Free memory is still 27.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-04 19:09:50,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 6666.56 ms. Allocated memory was 39.8 MB in the beginning and 98.6 MB in the end (delta: 58.7 MB). Free memory was 19.0 MB in the beginning and 34.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:50,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 207.12 ms. Allocated memory is still 98.6 MB. Free memory was 34.7 MB in the beginning and 30.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-04 19:09:50,464 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40 ms. Allocated memory is still 39.8 MB. Free memory is still 27.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 6666.56 ms. Allocated memory was 39.8 MB in the beginning and 98.6 MB in the end (delta: 58.7 MB). Free memory was 19.0 MB in the beginning and 34.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 207.12 ms. Allocated memory is still 98.6 MB. Free memory was 34.7 MB in the beginning and 30.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: 263]: Type Error Type differs at parameter #res in Procedure[nondet_size_t,[],[],[VarList[C: unsigned long nondet_size_t() { return __VERIFIER_nondet_ulong(); } [263],[#res],NamedType[C_ULONG,[]],null]],null,Body[C: unsigned long nondet_size_t() { return __VERIFIER_nondet_ulong(); } [263],[VariableDeclaration[[VarList[C: __VERIFIER_nondet_ulong() [263],[#t~nondet13],NamedType[C_ULONG,[]],null]]]],[AssignmentStatement[[VariableLHS[#res,]],[IdentifierExpression[#t~nondet13,]]],HavocStatement[[VariableLHS[#t~nondet13,]]],ReturnStatement]]] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...