./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.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678b828e 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.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 5a2751c0975bbc890422ce019adf381bd6867f74 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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.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 5a2751c0975bbc890422ce019adf381bd6867f74 .................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: TYPE ERROR --- Real Ultimate output --- This is Ultimate 0.2.1-678b828 [2020-12-07 16:55:08,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 16:55:08,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 16:55:08,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 16:55:08,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 16:55:08,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 16:55:08,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 16:55:08,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 16:55:08,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 16:55:08,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 16:55:08,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 16:55:08,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 16:55:08,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 16:55:08,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 16:55:08,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 16:55:08,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 16:55:08,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 16:55:08,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 16:55:08,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 16:55:08,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 16:55:08,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 16:55:08,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 16:55:08,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 16:55:08,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 16:55:08,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 16:55:08,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 16:55:08,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 16:55:08,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 16:55:08,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 16:55:08,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 16:55:08,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 16:55:08,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 16:55:08,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 16:55:08,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 16:55:08,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 16:55:08,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 16:55:08,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 16:55:08,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 16:55:08,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 16:55:08,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 16:55:08,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 16:55:08,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-07 16:55:08,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 16:55:08,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 16:55:08,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 16:55:08,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 16:55:08,993 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 16:55:08,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 16:55:08,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-07 16:55:08,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 16:55:08,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 16:55:08,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 16:55:08,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 16:55:08,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 16:55:09,000 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 16:55:09,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 16:55:09,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 16:55:09,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 16:55:09,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 16:55:09,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 16:55:09,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 16:55:09,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 16:55:09,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 16:55:09,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-07 16:55:09,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-07 16:55:09,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 16:55:09,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 16:55:09,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a2751c0975bbc890422ce019adf381bd6867f74 [2020-12-07 16:55:09,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 16:55:09,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 16:55:09,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 16:55:09,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 16:55:09,867 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 16:55:09,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness.i [2020-12-07 16:55:10,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67272457b/b7768f0fe74a4628affa9c5f9fdcec39/FLAG1521383cb [2020-12-07 16:55:11,933 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 16:55:11,935 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness.i [2020-12-07 16:55:12,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67272457b/b7768f0fe74a4628affa9c5f9fdcec39/FLAG1521383cb [2020-12-07 16:55:12,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67272457b/b7768f0fe74a4628affa9c5f9fdcec39 [2020-12-07 16:55:12,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 16:55:12,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 16:55:12,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 16:55:12,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 16:55:12,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 16:55:12,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:55:12" (1/1) ... [2020-12-07 16:55:12,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2b1c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:12, skipping insertion in model container [2020-12-07 16:55:12,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:55:12" (1/1) ... [2020-12-07 16:55:12,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 16:55:12,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 16:55:12,779 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.i[4500,4513] [2020-12-07 16:55:12,793 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.i[4560,4573] [2020-12-07 16:55:12,837 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 16:55:12,850 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 16:55:14,446 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,447 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,448 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,450 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,452 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,488 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,491 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,497 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,499 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,502 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,507 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,521 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:14,526 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,260 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 16:55:15,266 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 16:55:15,270 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 16:55:15,273 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 16:55:15,276 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 16:55:15,280 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 16:55:15,283 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 16:55:15,286 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 16:55:15,288 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 16:55:15,291 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 16:55:15,669 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 16:55:15,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 16:55:15,799 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 16:55:15,831 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.i[4500,4513] [2020-12-07 16:55:15,833 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.i[4560,4573] [2020-12-07 16:55:15,837 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 16:55:15,840 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 16:55:15,923 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,924 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,925 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,926 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,928 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,942 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,943 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,945 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,947 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,949 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,951 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,952 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:15,953 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:55:16,058 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 16:55:16,061 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 16:55:16,062 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 16:55:16,064 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 16:55:16,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 16:55:16,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 16:55:16,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 16:55:16,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 16:55:16,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 16:55:16,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 16:55:16,165 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 16:55:16,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 16:55:18,306 INFO L208 MainTranslator]: Completed translation [2020-12-07 16:55:18,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18 WrapperNode [2020-12-07 16:55:18,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 16:55:18,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 16:55:18,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 16:55:18,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 16:55:18,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 16:55:18,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-07 16:55:18,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-07 16:55:18,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-07 16:55:18,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (1/1) ... [2020-12-07 16:55:18,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-07 16:55:18,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-07 16:55:18,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-07 16:55:18,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-07 16:55:18,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (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 [2020-12-07 16:55:19,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-07 16:55:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-07 16:55:19,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-07 16:55:19,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-07 16:55:19,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-07 16:55:19,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-07 16:55:19,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-07 16:55:20,371 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-07 16:55:20,372 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-07 16:55:20,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:55:20 BoogieIcfgContainer [2020-12-07 16:55:20,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-07 16:55:20,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-07 16:55:20,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-07 16:55:20,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-07 16:55:20,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:55:12" (1/3) ... [2020-12-07 16:55:20,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aa91c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:55:20, skipping insertion in model container [2020-12-07 16:55:20,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:55:18" (2/3) ... [2020-12-07 16:55:20,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51aa91c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:55:20, skipping insertion in model container [2020-12-07 16:55:20,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:55:20" (3/3) ... [2020-12-07 16:55:20,403 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_linked_list_node_reset_harness.i [2020-12-07 16:55:20,457 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-07 16:55:20,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-07 16:55:20,487 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-07 16:55:20,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-07 16:55:20,560 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-07 16:55:20,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-07 16:55:20,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-07 16:55:20,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-07 16:55:20,561 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-07 16:55:20,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-07 16:55:20,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-07 16:55:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-12-07 16:55:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-07 16:55:20,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:20,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:20,603 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:20,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:20,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1935931966, now seen corresponding path program 1 times [2020-12-07 16:55:20,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:20,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609653442] [2020-12-07 16:55:20,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:21,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609653442] [2020-12-07 16:55:21,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 16:55:21,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-07 16:55:21,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763576844] [2020-12-07 16:55:21,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-07 16:55:21,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:21,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-07 16:55:21,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-07 16:55:21,269 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-12-07 16:55:21,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:21,312 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2020-12-07 16:55:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 16:55:21,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-07 16:55:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:21,334 INFO L225 Difference]: With dead ends: 59 [2020-12-07 16:55:21,335 INFO L226 Difference]: Without dead ends: 26 [2020-12-07 16:55:21,342 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 [2020-12-07 16:55:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-07 16:55:21,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-07 16:55:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-07 16:55:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-12-07 16:55:21,406 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 10 [2020-12-07 16:55:21,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:21,407 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-12-07 16:55:21,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-07 16:55:21,407 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-12-07 16:55:21,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-07 16:55:21,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:21,409 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:21,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-07 16:55:21,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:21,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:21,414 INFO L82 PathProgramCache]: Analyzing trace with hash 712013687, now seen corresponding path program 1 times [2020-12-07 16:55:21,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:21,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156333919] [2020-12-07 16:55:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:21,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156333919] [2020-12-07 16:55:21,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-07 16:55:21,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-07 16:55:21,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054330418] [2020-12-07 16:55:21,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-07 16:55:21,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:21,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-07 16:55:21,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-07 16:55:21,705 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 3 states. [2020-12-07 16:55:21,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:21,732 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2020-12-07 16:55:21,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-07 16:55:21,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-07 16:55:21,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:21,735 INFO L225 Difference]: With dead ends: 48 [2020-12-07 16:55:21,736 INFO L226 Difference]: Without dead ends: 27 [2020-12-07 16:55:21,738 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 [2020-12-07 16:55:21,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-07 16:55:21,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-07 16:55:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-07 16:55:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2020-12-07 16:55:21,749 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 13 [2020-12-07 16:55:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:21,750 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2020-12-07 16:55:21,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-07 16:55:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2020-12-07 16:55:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-07 16:55:21,752 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:21,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:21,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-07 16:55:21,753 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:21,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:21,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1602855479, now seen corresponding path program 1 times [2020-12-07 16:55:21,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:21,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734752417] [2020-12-07 16:55:21,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:22,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734752417] [2020-12-07 16:55:22,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442217312] [2020-12-07 16:55:22,030 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 [2020-12-07 16:55:22,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:22,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-07 16:55:22,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:22,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:22,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:22,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-07 16:55:22,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045840180] [2020-12-07 16:55:22,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 16:55:22,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:22,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 16:55:22,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-07 16:55:22,389 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand 6 states. [2020-12-07 16:55:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:22,433 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2020-12-07 16:55:22,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-07 16:55:22,435 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-07 16:55:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:22,437 INFO L225 Difference]: With dead ends: 49 [2020-12-07 16:55:22,438 INFO L226 Difference]: Without dead ends: 28 [2020-12-07 16:55:22,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-07 16:55:22,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-12-07 16:55:22,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-12-07 16:55:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-07 16:55:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-12-07 16:55:22,453 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 14 [2020-12-07 16:55:22,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:22,453 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-12-07 16:55:22,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 16:55:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-12-07 16:55:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-07 16:55:22,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:22,456 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:22,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-07 16:55:22,674 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:22,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash -845820041, now seen corresponding path program 2 times [2020-12-07 16:55:22,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:22,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119774489] [2020-12-07 16:55:22,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:22,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119774489] [2020-12-07 16:55:22,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350731488] [2020-12-07 16:55:22,957 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 [2020-12-07 16:55:23,088 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-07 16:55:23,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:23,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-07 16:55:23,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:23,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-07 16:55:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-07 16:55:23,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-07 16:55:23,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2020-12-07 16:55:23,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773818894] [2020-12-07 16:55:23,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-07 16:55:23,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:23,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-07 16:55:23,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-07 16:55:23,245 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-12-07 16:55:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:23,449 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2020-12-07 16:55:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-07 16:55:23,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-12-07 16:55:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:23,450 INFO L225 Difference]: With dead ends: 44 [2020-12-07 16:55:23,451 INFO L226 Difference]: Without dead ends: 35 [2020-12-07 16:55:23,451 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 [2020-12-07 16:55:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-07 16:55:23,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2020-12-07 16:55:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-07 16:55:23,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2020-12-07 16:55:23,459 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 15 [2020-12-07 16:55:23,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:23,460 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2020-12-07 16:55:23,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-07 16:55:23,460 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2020-12-07 16:55:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-07 16:55:23,461 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:23,461 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:23,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:23,678 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:23,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:23,679 INFO L82 PathProgramCache]: Analyzing trace with hash -844211327, now seen corresponding path program 1 times [2020-12-07 16:55:23,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:23,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442875809] [2020-12-07 16:55:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:23,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:23,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442875809] [2020-12-07 16:55:23,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348391672] [2020-12-07 16:55:23,914 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 [2020-12-07 16:55:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:24,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-07 16:55:24,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:24,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:24,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-07 16:55:24,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887930251] [2020-12-07 16:55:24,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-07 16:55:24,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:24,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-07 16:55:24,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-07 16:55:24,218 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand 8 states. [2020-12-07 16:55:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:24,289 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2020-12-07 16:55:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-07 16:55:24,293 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-12-07 16:55:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:24,297 INFO L225 Difference]: With dead ends: 52 [2020-12-07 16:55:24,298 INFO L226 Difference]: Without dead ends: 30 [2020-12-07 16:55:24,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-07 16:55:24,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-07 16:55:24,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-07 16:55:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-07 16:55:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2020-12-07 16:55:24,339 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 15 [2020-12-07 16:55:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:24,343 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2020-12-07 16:55:24,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-07 16:55:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2020-12-07 16:55:24,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-07 16:55:24,344 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:24,344 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:24,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:24,547 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:24,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash 556258881, now seen corresponding path program 2 times [2020-12-07 16:55:24,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:24,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679556953] [2020-12-07 16:55:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:24,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679556953] [2020-12-07 16:55:24,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096141744] [2020-12-07 16:55:24,714 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 [2020-12-07 16:55:24,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-07 16:55:24,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:24,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-07 16:55:24,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:25,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:25,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:25,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2020-12-07 16:55:25,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565079350] [2020-12-07 16:55:25,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-07 16:55:25,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:25,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-07 16:55:25,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-12-07 16:55:25,120 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 10 states. [2020-12-07 16:55:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:25,162 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2020-12-07 16:55:25,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-07 16:55:25,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-12-07 16:55:25,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:25,164 INFO L225 Difference]: With dead ends: 53 [2020-12-07 16:55:25,164 INFO L226 Difference]: Without dead ends: 31 [2020-12-07 16:55:25,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2020-12-07 16:55:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-07 16:55:25,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-07 16:55:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-07 16:55:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-12-07 16:55:25,180 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 16 [2020-12-07 16:55:25,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:25,181 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-12-07 16:55:25,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-07 16:55:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-12-07 16:55:25,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-07 16:55:25,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:25,183 INFO L422 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:25,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:25,401 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:25,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:25,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1021162369, now seen corresponding path program 3 times [2020-12-07 16:55:25,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:25,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492839453] [2020-12-07 16:55:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:25,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492839453] [2020-12-07 16:55:25,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486194781] [2020-12-07 16:55:25,654 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 [2020-12-07 16:55:25,951 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-07 16:55:25,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:25,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-07 16:55:25,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:26,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:26,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:26,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2020-12-07 16:55:26,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969760036] [2020-12-07 16:55:26,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-07 16:55:26,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:26,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-07 16:55:26,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-12-07 16:55:26,202 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 12 states. [2020-12-07 16:55:26,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:26,258 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-12-07 16:55:26,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-07 16:55:26,259 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2020-12-07 16:55:26,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:26,260 INFO L225 Difference]: With dead ends: 54 [2020-12-07 16:55:26,261 INFO L226 Difference]: Without dead ends: 32 [2020-12-07 16:55:26,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2020-12-07 16:55:26,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-07 16:55:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-07 16:55:26,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-07 16:55:26,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-12-07 16:55:26,271 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 17 [2020-12-07 16:55:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:26,272 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-12-07 16:55:26,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-07 16:55:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-12-07 16:55:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-07 16:55:26,273 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:26,273 INFO L422 BasicCegarLoop]: trace histogram [5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:26,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-12-07 16:55:26,491 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:26,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:26,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1746698687, now seen corresponding path program 4 times [2020-12-07 16:55:26,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:26,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872568312] [2020-12-07 16:55:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:26,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872568312] [2020-12-07 16:55:26,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520317227] [2020-12-07 16:55:26,750 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 [2020-12-07 16:55:26,933 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-07 16:55:26,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:26,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-07 16:55:26,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:27,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:27,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-12-07 16:55:27,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729579816] [2020-12-07 16:55:27,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-07 16:55:27,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:27,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-07 16:55:27,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-12-07 16:55:27,166 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 14 states. [2020-12-07 16:55:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:27,219 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-12-07 16:55:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-07 16:55:27,220 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-12-07 16:55:27,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:27,222 INFO L225 Difference]: With dead ends: 55 [2020-12-07 16:55:27,222 INFO L226 Difference]: Without dead ends: 33 [2020-12-07 16:55:27,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=106, Unknown=0, NotChecked=0, Total=182 [2020-12-07 16:55:27,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-07 16:55:27,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-07 16:55:27,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-07 16:55:27,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2020-12-07 16:55:27,230 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 18 [2020-12-07 16:55:27,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:27,231 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2020-12-07 16:55:27,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-07 16:55:27,231 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2020-12-07 16:55:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-07 16:55:27,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:27,232 INFO L422 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:27,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:27,446 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:27,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:27,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1651045503, now seen corresponding path program 5 times [2020-12-07 16:55:27,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:27,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999143682] [2020-12-07 16:55:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:27,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:27,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999143682] [2020-12-07 16:55:27,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594344796] [2020-12-07 16:55:27,654 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 [2020-12-07 16:55:27,873 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2020-12-07 16:55:27,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:27,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-07 16:55:27,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:28,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:28,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2020-12-07 16:55:28,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949250423] [2020-12-07 16:55:28,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-07 16:55:28,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:28,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-07 16:55:28,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-12-07 16:55:28,163 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 16 states. [2020-12-07 16:55:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:28,208 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2020-12-07 16:55:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-07 16:55:28,208 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2020-12-07 16:55:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:28,210 INFO L225 Difference]: With dead ends: 56 [2020-12-07 16:55:28,210 INFO L226 Difference]: Without dead ends: 34 [2020-12-07 16:55:28,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2020-12-07 16:55:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-07 16:55:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-07 16:55:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-07 16:55:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-12-07 16:55:28,248 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 19 [2020-12-07 16:55:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:28,248 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-12-07 16:55:28,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-07 16:55:28,248 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-12-07 16:55:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-07 16:55:28,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:28,249 INFO L422 BasicCegarLoop]: trace histogram [7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:28,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:28,464 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:28,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1314203201, now seen corresponding path program 6 times [2020-12-07 16:55:28,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:28,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995114566] [2020-12-07 16:55:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:28,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995114566] [2020-12-07 16:55:28,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212029273] [2020-12-07 16:55:28,718 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 [2020-12-07 16:55:29,189 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2020-12-07 16:55:29,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:29,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-07 16:55:29,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:29,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:29,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2020-12-07 16:55:29,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839128336] [2020-12-07 16:55:29,527 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-07 16:55:29,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:29,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-07 16:55:29,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-12-07 16:55:29,530 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 18 states. [2020-12-07 16:55:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:29,608 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2020-12-07 16:55:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-07 16:55:29,609 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 20 [2020-12-07 16:55:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:29,610 INFO L225 Difference]: With dead ends: 57 [2020-12-07 16:55:29,611 INFO L226 Difference]: Without dead ends: 35 [2020-12-07 16:55:29,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=181, Unknown=0, NotChecked=0, Total=306 [2020-12-07 16:55:29,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-07 16:55:29,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-07 16:55:29,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-07 16:55:29,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2020-12-07 16:55:29,620 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 20 [2020-12-07 16:55:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:29,621 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2020-12-07 16:55:29,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-07 16:55:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2020-12-07 16:55:29,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-07 16:55:29,622 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:29,623 INFO L422 BasicCegarLoop]: trace histogram [8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:29,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-07 16:55:29,840 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:29,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:29,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1252367487, now seen corresponding path program 7 times [2020-12-07 16:55:29,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:29,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383091134] [2020-12-07 16:55:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:30,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383091134] [2020-12-07 16:55:30,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69130741] [2020-12-07 16:55:30,160 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 [2020-12-07 16:55:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:30,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-07 16:55:30,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:30,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:30,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2020-12-07 16:55:30,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297339038] [2020-12-07 16:55:30,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-12-07 16:55:30,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:30,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-12-07 16:55:30,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-12-07 16:55:30,878 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 20 states. [2020-12-07 16:55:30,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:30,940 INFO L93 Difference]: Finished difference Result 58 states and 64 transitions. [2020-12-07 16:55:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-07 16:55:30,941 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 21 [2020-12-07 16:55:30,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:30,942 INFO L225 Difference]: With dead ends: 58 [2020-12-07 16:55:30,943 INFO L226 Difference]: Without dead ends: 36 [2020-12-07 16:55:30,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=154, Invalid=226, Unknown=0, NotChecked=0, Total=380 [2020-12-07 16:55:30,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-07 16:55:30,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-07 16:55:30,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-07 16:55:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-12-07 16:55:30,949 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 21 [2020-12-07 16:55:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:30,950 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-07 16:55:30,950 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-12-07 16:55:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2020-12-07 16:55:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-07 16:55:30,951 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:30,951 INFO L422 BasicCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:31,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:31,167 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:31,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:31,169 INFO L82 PathProgramCache]: Analyzing trace with hash 788319809, now seen corresponding path program 8 times [2020-12-07 16:55:31,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:31,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958214374] [2020-12-07 16:55:31,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:31,504 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:31,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958214374] [2020-12-07 16:55:31,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317107398] [2020-12-07 16:55:31,506 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 [2020-12-07 16:55:31,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-07 16:55:31,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:31,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-07 16:55:31,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:32,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:32,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2020-12-07 16:55:32,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961916816] [2020-12-07 16:55:32,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-07 16:55:32,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:32,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-07 16:55:32,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2020-12-07 16:55:32,278 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 22 states. [2020-12-07 16:55:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:32,388 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2020-12-07 16:55:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-07 16:55:32,389 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 22 [2020-12-07 16:55:32,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:32,391 INFO L225 Difference]: With dead ends: 59 [2020-12-07 16:55:32,391 INFO L226 Difference]: Without dead ends: 37 [2020-12-07 16:55:32,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=186, Invalid=276, Unknown=0, NotChecked=0, Total=462 [2020-12-07 16:55:32,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-07 16:55:32,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-07 16:55:32,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-07 16:55:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-12-07 16:55:32,404 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 22 [2020-12-07 16:55:32,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:32,406 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-12-07 16:55:32,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-07 16:55:32,407 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-12-07 16:55:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-07 16:55:32,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:32,412 INFO L422 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:32,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:32,626 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:32,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:32,627 INFO L82 PathProgramCache]: Analyzing trace with hash -374883455, now seen corresponding path program 9 times [2020-12-07 16:55:32,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:32,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383292886] [2020-12-07 16:55:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:32,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:33,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383292886] [2020-12-07 16:55:33,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766340029] [2020-12-07 16:55:33,030 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 [2020-12-07 16:55:34,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-07 16:55:34,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:34,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-07 16:55:34,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:35,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:35,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2020-12-07 16:55:35,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002347947] [2020-12-07 16:55:35,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-07 16:55:35,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:35,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-07 16:55:35,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=331, Unknown=0, NotChecked=0, Total=552 [2020-12-07 16:55:35,393 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 24 states. [2020-12-07 16:55:35,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:35,515 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2020-12-07 16:55:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-07 16:55:35,517 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 23 [2020-12-07 16:55:35,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:35,518 INFO L225 Difference]: With dead ends: 60 [2020-12-07 16:55:35,518 INFO L226 Difference]: Without dead ends: 38 [2020-12-07 16:55:35,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=331, Unknown=0, NotChecked=0, Total=552 [2020-12-07 16:55:35,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-07 16:55:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-07 16:55:35,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-07 16:55:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2020-12-07 16:55:35,527 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 23 [2020-12-07 16:55:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:35,527 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2020-12-07 16:55:35,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-12-07 16:55:35,528 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2020-12-07 16:55:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-07 16:55:35,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:35,529 INFO L422 BasicCegarLoop]: trace histogram [11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:35,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-12-07 16:55:35,745 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:35,747 INFO L82 PathProgramCache]: Analyzing trace with hash -2074446271, now seen corresponding path program 10 times [2020-12-07 16:55:35,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:35,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319901849] [2020-12-07 16:55:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319901849] [2020-12-07 16:55:36,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442795556] [2020-12-07 16:55:36,146 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 [2020-12-07 16:55:36,306 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-07 16:55:36,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:36,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-07 16:55:36,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:36,794 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:36,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:36,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2020-12-07 16:55:36,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058407357] [2020-12-07 16:55:36,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-07 16:55:36,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:36,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-07 16:55:36,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=391, Unknown=0, NotChecked=0, Total=650 [2020-12-07 16:55:36,798 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand 26 states. [2020-12-07 16:55:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:36,866 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2020-12-07 16:55:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-07 16:55:36,867 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 24 [2020-12-07 16:55:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:36,868 INFO L225 Difference]: With dead ends: 61 [2020-12-07 16:55:36,868 INFO L226 Difference]: Without dead ends: 39 [2020-12-07 16:55:36,870 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=259, Invalid=391, Unknown=0, NotChecked=0, Total=650 [2020-12-07 16:55:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-07 16:55:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-07 16:55:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-07 16:55:36,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-12-07 16:55:36,880 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 24 [2020-12-07 16:55:36,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:36,881 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-12-07 16:55:36,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-07 16:55:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-12-07 16:55:36,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-07 16:55:36,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:36,883 INFO L422 BasicCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:37,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-12-07 16:55:37,097 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:37,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1073681281, now seen corresponding path program 11 times [2020-12-07 16:55:37,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:37,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213642913] [2020-12-07 16:55:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:37,527 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:37,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213642913] [2020-12-07 16:55:37,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935044364] [2020-12-07 16:55:37,528 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 [2020-12-07 16:55:38,389 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2020-12-07 16:55:38,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:38,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-07 16:55:38,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:38,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:38,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2020-12-07 16:55:38,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140634695] [2020-12-07 16:55:38,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-07 16:55:38,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:38,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-07 16:55:38,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=456, Unknown=0, NotChecked=0, Total=756 [2020-12-07 16:55:38,981 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 28 states. [2020-12-07 16:55:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:39,059 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2020-12-07 16:55:39,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-07 16:55:39,064 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 25 [2020-12-07 16:55:39,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:39,066 INFO L225 Difference]: With dead ends: 62 [2020-12-07 16:55:39,067 INFO L226 Difference]: Without dead ends: 40 [2020-12-07 16:55:39,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=456, Unknown=0, NotChecked=0, Total=756 [2020-12-07 16:55:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-12-07 16:55:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-07 16:55:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-07 16:55:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-07 16:55:39,084 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 25 [2020-12-07 16:55:39,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:39,086 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-07 16:55:39,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-07 16:55:39,086 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-12-07 16:55:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-07 16:55:39,088 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:39,089 INFO L422 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:39,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-07 16:55:39,291 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:39,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:39,293 INFO L82 PathProgramCache]: Analyzing trace with hash -118612415, now seen corresponding path program 12 times [2020-12-07 16:55:39,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:39,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640248196] [2020-12-07 16:55:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:39,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640248196] [2020-12-07 16:55:39,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690597721] [2020-12-07 16:55:39,724 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 [2020-12-07 16:55:42,437 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2020-12-07 16:55:42,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:42,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-07 16:55:42,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:43,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:43,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2020-12-07 16:55:43,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038955730] [2020-12-07 16:55:43,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-12-07 16:55:43,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:43,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-12-07 16:55:43,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=526, Unknown=0, NotChecked=0, Total=870 [2020-12-07 16:55:43,142 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 30 states. [2020-12-07 16:55:43,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:43,227 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2020-12-07 16:55:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-07 16:55:43,228 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 26 [2020-12-07 16:55:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:43,230 INFO L225 Difference]: With dead ends: 63 [2020-12-07 16:55:43,230 INFO L226 Difference]: Without dead ends: 41 [2020-12-07 16:55:43,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=344, Invalid=526, Unknown=0, NotChecked=0, Total=870 [2020-12-07 16:55:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-12-07 16:55:43,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-12-07 16:55:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-07 16:55:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2020-12-07 16:55:43,240 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 26 [2020-12-07 16:55:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:43,241 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-12-07 16:55:43,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-12-07 16:55:43,241 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-12-07 16:55:43,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-07 16:55:43,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:43,242 INFO L422 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:43,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:55:43,458 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:43,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1574988673, now seen corresponding path program 13 times [2020-12-07 16:55:43,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:43,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019413520] [2020-12-07 16:55:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:44,007 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:44,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019413520] [2020-12-07 16:55:44,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015603355] [2020-12-07 16:55:44,008 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 [2020-12-07 16:55:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:44,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-07 16:55:44,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:45,009 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:45,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:45,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2020-12-07 16:55:45,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370927869] [2020-12-07 16:55:45,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-07 16:55:45,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:45,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-07 16:55:45,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=601, Unknown=0, NotChecked=0, Total=992 [2020-12-07 16:55:45,015 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand 32 states. [2020-12-07 16:55:45,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:45,147 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2020-12-07 16:55:45,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-07 16:55:45,147 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 27 [2020-12-07 16:55:45,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:45,151 INFO L225 Difference]: With dead ends: 64 [2020-12-07 16:55:45,151 INFO L226 Difference]: Without dead ends: 42 [2020-12-07 16:55:45,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=391, Invalid=601, Unknown=0, NotChecked=0, Total=992 [2020-12-07 16:55:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-07 16:55:45,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-07 16:55:45,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-07 16:55:45,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2020-12-07 16:55:45,176 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 27 [2020-12-07 16:55:45,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:45,176 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2020-12-07 16:55:45,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-07 16:55:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2020-12-07 16:55:45,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-07 16:55:45,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:45,178 INFO L422 BasicCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:45,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-07 16:55:45,392 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:45,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:45,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1757952447, now seen corresponding path program 14 times [2020-12-07 16:55:45,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:45,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449729317] [2020-12-07 16:55:45,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:45,871 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:45,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449729317] [2020-12-07 16:55:45,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644605262] [2020-12-07 16:55:45,873 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 [2020-12-07 16:55:46,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-07 16:55:46,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:55:46,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-07 16:55:46,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:55:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:46,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:55:46,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2020-12-07 16:55:46,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675712105] [2020-12-07 16:55:46,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-12-07 16:55:46,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:55:46,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-12-07 16:55:46,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=681, Unknown=0, NotChecked=0, Total=1122 [2020-12-07 16:55:46,857 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 34 states. [2020-12-07 16:55:46,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:55:46,948 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2020-12-07 16:55:46,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-07 16:55:46,949 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 28 [2020-12-07 16:55:46,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:55:46,950 INFO L225 Difference]: With dead ends: 65 [2020-12-07 16:55:46,950 INFO L226 Difference]: Without dead ends: 43 [2020-12-07 16:55:46,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=441, Invalid=681, Unknown=0, NotChecked=0, Total=1122 [2020-12-07 16:55:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-07 16:55:46,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-12-07 16:55:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-07 16:55:46,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2020-12-07 16:55:46,973 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 28 [2020-12-07 16:55:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:55:46,973 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2020-12-07 16:55:46,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-12-07 16:55:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2020-12-07 16:55:46,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-07 16:55:46,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:55:46,974 INFO L422 BasicCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:55:47,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2020-12-07 16:55:47,190 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:55:47,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:55:47,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1999912063, now seen corresponding path program 15 times [2020-12-07 16:55:47,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:55:47,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587716245] [2020-12-07 16:55:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:55:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:55:49,019 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 91 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:55:49,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587716245] [2020-12-07 16:55:49,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281305658] [2020-12-07 16:55:49,020 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:56:13,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2020-12-07 16:56:13,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-07 16:56:13,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 84 conjunts are in the unsatisfiable core [2020-12-07 16:56:13,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:56:13,553 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 [2020-12-07 16:56:13,556 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,587 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:13,589 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,590 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:26 [2020-12-07 16:56:13,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:13,705 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 [2020-12-07 16:56:13,709 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,739 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:13,742 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,742 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:35 [2020-12-07 16:56:13,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:13,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:13,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:13,867 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 [2020-12-07 16:56:13,873 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,902 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:13,904 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:13,904 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:48, output treesize:44 [2020-12-07 16:56:14,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,042 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 40 treesize of output 45 [2020-12-07 16:56:14,049 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,094 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:14,098 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,099 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:58, output treesize:54 [2020-12-07 16:56:14,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,278 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 50 treesize of output 58 [2020-12-07 16:56:14,283 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,326 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:14,328 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,329 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:68, output treesize:64 [2020-12-07 16:56:14,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,523 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 60 treesize of output 71 [2020-12-07 16:56:14,530 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:14,579 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,580 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:78, output treesize:74 [2020-12-07 16:56:14,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,777 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 70 treesize of output 84 [2020-12-07 16:56:14,782 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,826 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:14,829 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:14,829 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:88, output treesize:84 [2020-12-07 16:56:14,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:14,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,069 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 [2020-12-07 16:56:15,073 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:15,121 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:15,123 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:15,124 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:89 [2020-12-07 16:56:15,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,366 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 [2020-12-07 16:56:15,372 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:15,421 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:15,424 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:15,426 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:99, output treesize:95 [2020-12-07 16:56:15,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:15,848 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-12-07 16:56:15,849 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:15,851 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 94 treesize of output 363 [2020-12-07 16:56:15,867 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:16,151 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 55 [2020-12-07 16:56:16,152 INFO L625 ElimStorePlain]: treesize reduction 160, result has 39.6 percent of original size [2020-12-07 16:56:16,156 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:16,156 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:109, output treesize:105 [2020-12-07 16:56:16,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:16,939 WARN L197 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 102 [2020-12-07 16:56:16,941 INFO L348 Elim1Store]: treesize reduction 146, result has 69.7 percent of original size [2020-12-07 16:56:16,942 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 104 treesize of output 376 [2020-12-07 16:56:16,964 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:17,235 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2020-12-07 16:56:17,236 INFO L625 ElimStorePlain]: treesize reduction 160, result has 41.8 percent of original size [2020-12-07 16:56:17,238 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:17,239 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:119, output treesize:115 [2020-12-07 16:56:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:17,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,192 WARN L197 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 107 [2020-12-07 16:56:18,196 INFO L348 Elim1Store]: treesize reduction 306, result has 53.1 percent of original size [2020-12-07 16:56:18,198 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 30 case distinctions, treesize of input 114 treesize of output 389 [2020-12-07 16:56:18,213 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:18,494 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2020-12-07 16:56:18,496 INFO L625 ElimStorePlain]: treesize reduction 160, result has 43.9 percent of original size [2020-12-07 16:56:18,499 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:18,499 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:129, output treesize:125 [2020-12-07 16:56:18,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:18,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:19,554 WARN L197 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 112 [2020-12-07 16:56:19,556 INFO L348 Elim1Store]: treesize reduction 480, result has 42.6 percent of original size [2020-12-07 16:56:19,557 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 42 case distinctions, treesize of input 124 treesize of output 402 [2020-12-07 16:56:19,574 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:19,880 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2020-12-07 16:56:19,882 INFO L625 ElimStorePlain]: treesize reduction 160, result has 45.8 percent of original size [2020-12-07 16:56:19,884 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:19,885 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:135 [2020-12-07 16:56:20,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:20,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,168 WARN L197 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 305 DAG size of output: 117 [2020-12-07 16:56:21,170 INFO L348 Elim1Store]: treesize reduction 668, result has 35.4 percent of original size [2020-12-07 16:56:21,170 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 36 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 134 treesize of output 415 [2020-12-07 16:56:21,183 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:21,502 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2020-12-07 16:56:21,504 INFO L625 ElimStorePlain]: treesize reduction 160, result has 47.5 percent of original size [2020-12-07 16:56:21,507 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:21,508 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:145 [2020-12-07 16:56:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,012 WARN L197 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 367 DAG size of output: 122 [2020-12-07 16:56:23,013 INFO L348 Elim1Store]: treesize reduction 870, result has 30.2 percent of original size [2020-12-07 16:56:23,013 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 36 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 69 case distinctions, treesize of input 144 treesize of output 428 [2020-12-07 16:56:23,027 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:23,367 WARN L197 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 75 [2020-12-07 16:56:23,369 INFO L625 ElimStorePlain]: treesize reduction 160, result has 49.2 percent of original size [2020-12-07 16:56:23,371 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:23,371 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:159, output treesize:155 [2020-12-07 16:56:23,608 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-07 16:56:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:26,162 WARN L197 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 328 DAG size of output: 324 [2020-12-07 16:56:26,165 INFO L348 Elim1Store]: treesize reduction 20, result has 98.0 percent of original size [2020-12-07 16:56:26,166 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 57 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 114 case distinctions, treesize of input 213 treesize of output 1092 [2020-12-07 16:56:26,223 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:26,610 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 76 [2020-12-07 16:56:26,612 INFO L625 ElimStorePlain]: treesize reduction 144, result has 53.1 percent of original size [2020-12-07 16:56:26,616 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. [2020-12-07 16:56:26,618 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:227, output treesize:163 [2020-12-07 16:56:27,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:27,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:28,053 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:28,054 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 16 select indices, 16 select index equivalence classes, 120 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 132 treesize of output 52 [2020-12-07 16:56:28,067 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:28,080 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:28,091 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:28,092 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:138, output treesize:3 [2020-12-07 16:56:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 21 proven. 115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:56:28,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-07 16:56:28,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2020-12-07 16:56:28,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427470747] [2020-12-07 16:56:28,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-12-07 16:56:28,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:56:28,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-12-07 16:56:28,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1353, Unknown=10, NotChecked=0, Total=1722 [2020-12-07 16:56:28,150 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 42 states. [2020-12-07 16:56:29,572 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:30,190 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:31,133 WARN L197 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:31,857 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:32,327 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:33,087 WARN L197 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2020-12-07 16:56:33,734 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 96 [2020-12-07 16:56:34,574 WARN L197 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 142 [2020-12-07 16:56:35,462 WARN L197 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 144 [2020-12-07 16:56:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-07 16:56:35,880 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2020-12-07 16:56:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-07 16:56:35,882 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 29 [2020-12-07 16:56:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-07 16:56:35,883 INFO L225 Difference]: With dead ends: 64 [2020-12-07 16:56:35,884 INFO L226 Difference]: Without dead ends: 51 [2020-12-07 16:56:35,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=640, Invalid=1900, Unknown=10, NotChecked=0, Total=2550 [2020-12-07 16:56:35,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-07 16:56:35,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-12-07 16:56:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-07 16:56:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2020-12-07 16:56:35,901 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 29 [2020-12-07 16:56:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-07 16:56:35,902 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2020-12-07 16:56:35,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-12-07 16:56:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2020-12-07 16:56:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-07 16:56:35,904 INFO L414 BasicCegarLoop]: Found error trace [2020-12-07 16:56:35,904 INFO L422 BasicCegarLoop]: trace histogram [16, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-07 16:56:36,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:56:36,107 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-07 16:56:36,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-07 16:56:36,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1994150072, now seen corresponding path program 1 times [2020-12-07 16:56:36,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-07 16:56:36,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134478346] [2020-12-07 16:56:36,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-07 16:56:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:56:37,969 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 22 [2020-12-07 16:56:38,012 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 78 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-07 16:56:38,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134478346] [2020-12-07 16:56:38,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892015928] [2020-12-07 16:56:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:56:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-07 16:56:38,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 60 conjunts are in the unsatisfiable core [2020-12-07 16:56:38,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-07 16:56:38,427 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 [2020-12-07 16:56:38,429 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,446 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:38,447 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,448 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:20 [2020-12-07 16:56:38,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,528 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 [2020-12-07 16:56:38,534 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,556 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:38,558 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,558 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:33, output treesize:29 [2020-12-07 16:56:38,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,664 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 [2020-12-07 16:56:38,667 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,692 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:38,695 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. [2020-12-07 16:56:38,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:43 [2020-12-07 16:56:38,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:38,840 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 [2020-12-07 16:56:38,843 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:38,880 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:38,886 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. [2020-12-07 16:56:38,887 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:61, output treesize:57 [2020-12-07 16:56:39,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,170 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 [2020-12-07 16:56:39,177 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:39,236 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:39,245 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. [2020-12-07 16:56:39,247 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:75, output treesize:71 [2020-12-07 16:56:39,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:39,583 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 [2020-12-07 16:56:39,588 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:39,669 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:39,681 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. [2020-12-07 16:56:39,682 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:89, output treesize:85 [2020-12-07 16:56:40,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:40,565 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 [2020-12-07 16:56:40,571 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:40,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:40,665 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. [2020-12-07 16:56:40,666 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:103, output treesize:99 [2020-12-07 16:56:45,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:45,127 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 [2020-12-07 16:56:45,131 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:45,217 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:45,231 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. [2020-12-07 16:56:45,232 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:117, output treesize:113 [2020-12-07 16:56:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:56:51,787 INFO L244 Elim1Store]: Index analysis took 110 ms [2020-12-07 16:56:51,791 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 [2020-12-07 16:56:51,797 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:56:51,919 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-07 16:56:51,920 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:56:51,935 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. [2020-12-07 16:56:51,936 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:131, output treesize:127 [2020-12-07 16:57:00,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:00,581 INFO L244 Elim1Store]: Index analysis took 149 ms [2020-12-07 16:57:00,585 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 [2020-12-07 16:57:00,594 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:57:00,745 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-12-07 16:57:00,747 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:57:00,790 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. [2020-12-07 16:57:00,791 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:145, output treesize:141 [2020-12-07 16:57:11,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:11,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:12,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:12,009 INFO L244 Elim1Store]: Index analysis took 170 ms [2020-12-07 16:57:12,015 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 [2020-12-07 16:57:12,027 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:57:12,197 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-12-07 16:57:12,198 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:57:12,223 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. [2020-12-07 16:57:12,225 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:159, output treesize:155 [2020-12-07 16:57:33,776 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-07 16:57:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:33,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-12-07 16:57:34,096 INFO L244 Elim1Store]: Index analysis took 242 ms [2020-12-07 16:57:34,099 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 [2020-12-07 16:57:34,107 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-07 16:57:34,254 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-12-07 16:57:34,255 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-07 16:57:34,272 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. [2020-12-07 16:57:34,274 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 11 variables, input treesize:173, output treesize:169 [2020-12-07 16:59:15,445 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-07 16:59:15,448 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-12-07 16:59:15,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-12-07 16:59:15,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-12-07 16:59:15,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67149417] [2020-12-07 16:59:15,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-07 16:59:15,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-07 16:59:15,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-07 16:59:15,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=1006, Unknown=22, NotChecked=0, Total=1260 [2020-12-07 16:59:15,452 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand 24 states. [2020-12-07 16:59:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-07 16:59:15,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-07 16:59:15,672 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@3bd64238 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:356) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:204) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$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) [2020-12-07 16:59:15,678 INFO L168 Benchmark]: Toolchain (without parser) took 243576.36 ms. Allocated memory was 41.9 MB in the beginning and 314.6 MB in the end (delta: 272.6 MB). Free memory was 20.4 MB in the beginning and 90.3 MB in the end (delta: -69.8 MB). Peak memory consumption was 203.1 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,679 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 41.9 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 16:59:15,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 6201.56 ms. Allocated memory was 41.9 MB in the beginning and 142.6 MB in the end (delta: 100.7 MB). Free memory was 20.2 MB in the beginning and 60.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 319.12 ms. Allocated memory is still 142.6 MB. Free memory was 60.9 MB in the beginning and 55.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,681 INFO L168 Benchmark]: Boogie Preprocessor took 141.38 ms. Allocated memory is still 142.6 MB. Free memory was 55.6 MB in the beginning and 53.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,681 INFO L168 Benchmark]: RCFGBuilder took 1599.94 ms. Allocated memory is still 142.6 MB. Free memory was 53.5 MB in the beginning and 78.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,681 INFO L168 Benchmark]: TraceAbstraction took 235296.80 ms. Allocated memory was 142.6 MB in the beginning and 314.6 MB in the end (delta: 172.0 MB). Free memory was 78.9 MB in the beginning and 90.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 160.9 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:15,683 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 41.9 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 6201.56 ms. Allocated memory was 41.9 MB in the beginning and 142.6 MB in the end (delta: 100.7 MB). Free memory was 20.2 MB in the beginning and 60.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 319.12 ms. Allocated memory is still 142.6 MB. Free memory was 60.9 MB in the beginning and 55.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 141.38 ms. Allocated memory is still 142.6 MB. Free memory was 55.6 MB in the beginning and 53.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1599.94 ms. Allocated memory is still 142.6 MB. Free memory was 53.5 MB in the beginning and 78.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 235296.80 ms. Allocated memory was 142.6 MB in the beginning and 314.6 MB in the end (delta: 172.0 MB). Free memory was 78.9 MB in the beginning and 90.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 160.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@3bd64238 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@3bd64238: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-678b828 [2020-12-07 16:59:18,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-07 16:59:18,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-07 16:59:18,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-07 16:59:18,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-07 16:59:18,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-07 16:59:18,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-07 16:59:18,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-07 16:59:18,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-07 16:59:18,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-07 16:59:18,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-07 16:59:18,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-07 16:59:18,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-07 16:59:18,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-07 16:59:18,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-07 16:59:18,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-07 16:59:18,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-07 16:59:18,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-07 16:59:18,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-07 16:59:18,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-07 16:59:18,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-07 16:59:18,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-07 16:59:18,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-07 16:59:18,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-07 16:59:18,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-07 16:59:18,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-07 16:59:18,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-07 16:59:18,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-07 16:59:18,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-07 16:59:18,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-07 16:59:18,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-07 16:59:18,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-07 16:59:18,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-07 16:59:18,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-07 16:59:18,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-07 16:59:18,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-07 16:59:18,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-07 16:59:18,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-07 16:59:18,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-07 16:59:18,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-07 16:59:18,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-07 16:59:18,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2020-12-07 16:59:18,401 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-07 16:59:18,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-07 16:59:18,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-07 16:59:18,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-07 16:59:18,406 INFO L138 SettingsManager]: * Use SBE=true [2020-12-07 16:59:18,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-07 16:59:18,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-07 16:59:18,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-07 16:59:18,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-07 16:59:18,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-07 16:59:18,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-07 16:59:18,410 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-07 16:59:18,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-07 16:59:18,410 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-07 16:59:18,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-07 16:59:18,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-07 16:59:18,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-07 16:59:18,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-07 16:59:18,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-07 16:59:18,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-07 16:59:18,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-07 16:59:18,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-07 16:59:18,413 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-07 16:59:18,413 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-07 16:59:18,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-07 16:59:18,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-07 16:59:18,414 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-07 16:59:18,414 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a2751c0975bbc890422ce019adf381bd6867f74 [2020-12-07 16:59:18,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-07 16:59:18,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-07 16:59:18,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-07 16:59:18,897 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-07 16:59:18,902 INFO L275 PluginConnector]: CDTParser initialized [2020-12-07 16:59:18,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness.i [2020-12-07 16:59:19,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8459181/cf707d3bbe9d487392cb3cff45f99e24/FLAG88ccfa84d [2020-12-07 16:59:20,233 INFO L306 CDTParser]: Found 1 translation units. [2020-12-07 16:59:20,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_linked_list_node_reset_harness.i [2020-12-07 16:59:20,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8459181/cf707d3bbe9d487392cb3cff45f99e24/FLAG88ccfa84d [2020-12-07 16:59:20,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a8459181/cf707d3bbe9d487392cb3cff45f99e24 [2020-12-07 16:59:20,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-07 16:59:20,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-07 16:59:20,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-07 16:59:20,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-07 16:59:20,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-07 16:59:20,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:20" (1/1) ... [2020-12-07 16:59:20,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e16560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:20, skipping insertion in model container [2020-12-07 16:59:20,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:59:20" (1/1) ... [2020-12-07 16:59:20,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-07 16:59:20,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-07 16:59:21,187 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.i[4500,4513] [2020-12-07 16:59:21,199 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.i[4560,4573] [2020-12-07 16:59:21,229 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 16:59:21,239 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 16:59:22,214 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,215 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,217 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,228 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,231 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,261 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,263 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,265 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,266 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,268 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,270 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,271 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,272 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:22,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 16:59:22,786 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 16:59:22,789 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 16:59:22,792 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 16:59:22,796 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 16:59:22,797 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 16:59:22,798 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 16:59:22,800 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 16:59:22,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 16:59:22,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 16:59:23,073 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 16:59:23,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 16:59:23,195 INFO L203 MainTranslator]: Completed pre-run [2020-12-07 16:59:23,234 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.i[4500,4513] [2020-12-07 16:59:23,241 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.i[4560,4573] [2020-12-07 16:59:23,249 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2020-12-07 16:59:23,250 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2020-12-07 16:59:23,344 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,345 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,370 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,371 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,374 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,406 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,407 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,410 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,411 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,413 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,415 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,417 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,417 WARN L1501 CHandler]: Possible shadowing of function index [2020-12-07 16:59:23,521 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2020-12-07 16:59:23,523 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2020-12-07 16:59:23,524 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2020-12-07 16:59:23,525 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2020-12-07 16:59:23,526 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2020-12-07 16:59:23,528 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2020-12-07 16:59:23,529 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2020-12-07 16:59:23,530 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2020-12-07 16:59:23,531 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2020-12-07 16:59:23,532 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2020-12-07 16:59:23,580 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2020-12-07 16:59:23,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-07 16:59:24,586 INFO L208 MainTranslator]: Completed translation [2020-12-07 16:59:24,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:24 WrapperNode [2020-12-07 16:59:24,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-07 16:59:24,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-07 16:59:24,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-07 16:59:24,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-07 16:59:24,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:24" (1/1) ... [2020-12-07 16:59:24,689 ERROR L1131 TypeChecker]: C: malloc(size) [6935]: Wrong parameter type at index 0: CallStatement[null,false,[VariableLHS[#t~malloc580,]],#Ultimate.allocOnHeap,[IdentifierExpression[~size,]]] [2020-12-07 16:59:24,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:59:24" (1/1) ... [2020-12-07 16:59:24,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-07 16:59:24,701 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-12-07 16:59:24,704 INFO L168 Benchmark]: Toolchain (without parser) took 4041.34 ms. Allocated memory was 41.9 MB in the beginning and 90.2 MB in the end (delta: 48.2 MB). Free memory was 22.2 MB in the beginning and 46.7 MB in the end (delta: -24.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:24,705 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 41.9 MB. Free memory was 26.7 MB in the beginning and 26.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-07 16:59:24,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3921.82 ms. Allocated memory was 41.9 MB in the beginning and 90.2 MB in the end (delta: 48.2 MB). Free memory was 22.0 MB in the beginning and 50.9 MB in the end (delta: -28.9 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:24,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.64 ms. Allocated memory is still 90.2 MB. Free memory was 50.9 MB in the beginning and 46.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-07 16:59:24,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 41.9 MB. Free memory was 26.7 MB in the beginning and 26.6 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3921.82 ms. Allocated memory was 41.9 MB in the beginning and 90.2 MB in the end (delta: 48.2 MB). Free memory was 22.0 MB in the beginning and 50.9 MB in the end (delta: -28.9 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.64 ms. Allocated memory is still 90.2 MB. Free memory was 50.9 MB in the beginning and 46.7 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: 6935]: Type Error Wrong parameter type at index 0: CallStatement[null,false,[VariableLHS[#t~malloc580,]],#Ultimate.allocOnHeap,[IdentifierExpression[~size,]]] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...