./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 54165abed718b8d39f88748583b76365fb540324 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:29:30,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:29:30,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:29:31,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:29:31,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:29:31,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:29:31,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:29:31,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:29:31,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:29:31,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:29:31,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:29:31,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:29:31,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:29:31,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:29:31,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:29:31,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:29:31,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:29:31,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:29:31,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:29:31,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:29:31,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:29:31,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:29:31,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:29:31,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:29:31,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:29:31,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:29:31,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:29:31,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:29:31,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:29:31,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:29:31,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:29:31,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:29:31,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:29:31,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:29:31,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:29:31,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:29:31,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:29:31,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:29:31,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:29:31,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:29:31,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:29:31,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-30 00:29:31,194 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:29:31,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:29:31,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:29:31,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:29:31,198 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:29:31,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:29:31,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:29:31,199 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:29:31,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:29:31,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:29:31,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:29:31,200 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:29:31,200 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:29:31,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:29:31,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 00:29:31,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:29:31,201 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:29:31,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:29:31,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:29:31,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:29:31,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:29:31,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:29:31,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:29:31,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:29:31,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:29:31,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:29:31,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:29:31,205 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:/tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54165abed718b8d39f88748583b76365fb540324 [2020-11-30 00:29:31,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:29:31,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:29:31,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:29:31,614 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:29:31,615 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:29:31,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2020-11-30 00:29:31,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/data/c3adf3623/9bc4f97c7c1f40e9886580d3fb083500/FLAGd0c1fdb35 [2020-11-30 00:29:32,410 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:29:32,411 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2020-11-30 00:29:32,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/data/c3adf3623/9bc4f97c7c1f40e9886580d3fb083500/FLAGd0c1fdb35 [2020-11-30 00:29:32,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/data/c3adf3623/9bc4f97c7c1f40e9886580d3fb083500 [2020-11-30 00:29:32,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:29:32,656 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-30 00:29:32,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:32,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:29:32,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:29:32,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:32" (1/1) ... [2020-11-30 00:29:32,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d859e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:32, skipping insertion in model container [2020-11-30 00:29:32,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:29:32" (1/1) ... [2020-11-30 00:29:32,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:29:32,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:29:33,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:33,226 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:29:33,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:29:33,422 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:29:33,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33 WrapperNode [2020-11-30 00:29:33,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:29:33,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:29:33,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:29:33,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:29:33,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... [2020-11-30 00:29:33,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:29:33,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:29:33,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:29:33,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:29:33,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/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 [2020-11-30 00:29:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-30 00:29:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:29:33,699 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-30 00:29:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-30 00:29:33,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-30 00:29:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2020-11-30 00:29:33,702 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2020-11-30 00:29:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_pair [2020-11-30 00:29:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_sort_core [2020-11-30 00:29:33,703 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_before [2020-11-30 00:29:33,704 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect_after [2020-11-30 00:29:33,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-30 00:29:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-30 00:29:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-30 00:29:33,706 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-30 00:29:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-30 00:29:33,707 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-30 00:29:33,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:29:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-30 00:29:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-30 00:29:33,709 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-30 00:29:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-30 00:29:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-30 00:29:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-30 00:29:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-30 00:29:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-30 00:29:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-30 00:29:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-30 00:29:33,711 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-30 00:29:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-30 00:29:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-30 00:29:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-30 00:29:33,712 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-30 00:29:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-30 00:29:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-30 00:29:33,713 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-30 00:29:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-30 00:29:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-30 00:29:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-30 00:29:33,714 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-30 00:29:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-30 00:29:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-30 00:29:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-30 00:29:33,715 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-30 00:29:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-30 00:29:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-30 00:29:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-30 00:29:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-30 00:29:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-30 00:29:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-30 00:29:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-30 00:29:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-30 00:29:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-30 00:29:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-30 00:29:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-30 00:29:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-30 00:29:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-30 00:29:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-30 00:29:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-30 00:29:33,721 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-30 00:29:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-30 00:29:33,722 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-30 00:29:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-30 00:29:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-30 00:29:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-30 00:29:33,723 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-30 00:29:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-30 00:29:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-30 00:29:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-30 00:29:33,724 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-30 00:29:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-30 00:29:33,725 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-30 00:29:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-30 00:29:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-30 00:29:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-30 00:29:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-30 00:29:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-30 00:29:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-30 00:29:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-30 00:29:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-30 00:29:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-30 00:29:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-30 00:29:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-30 00:29:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-30 00:29:33,732 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-30 00:29:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-30 00:29:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-30 00:29:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-30 00:29:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-30 00:29:33,733 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-30 00:29:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-30 00:29:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-30 00:29:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-30 00:29:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-30 00:29:33,734 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-30 00:29:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-30 00:29:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-30 00:29:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-30 00:29:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-30 00:29:33,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-30 00:29:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-30 00:29:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-30 00:29:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-30 00:29:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-30 00:29:33,737 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-30 00:29:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-30 00:29:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-30 00:29:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-30 00:29:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-30 00:29:33,738 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-30 00:29:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-30 00:29:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-30 00:29:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-30 00:29:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-30 00:29:33,739 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-30 00:29:33,740 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-30 00:29:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-30 00:29:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-30 00:29:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-30 00:29:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-30 00:29:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2020-11-30 00:29:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2020-11-30 00:29:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-30 00:29:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-30 00:29:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure merge_pair [2020-11-30 00:29:33,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:29:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:29:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure seq_sort_core [2020-11-30 00:29:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_before [2020-11-30 00:29:33,744 INFO L130 BoogieDeclarations]: Found specification of procedure inspect_after [2020-11-30 00:29:33,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-30 00:29:33,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-30 00:29:33,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:29:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-30 00:29:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:29:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:29:35,416 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:29:35,417 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-11-30 00:29:35,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35 BoogieIcfgContainer [2020-11-30 00:29:35,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:29:35,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:29:35,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:29:35,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:29:35,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:29:32" (1/3) ... [2020-11-30 00:29:35,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7619ea6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:35, skipping insertion in model container [2020-11-30 00:29:35,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:29:33" (2/3) ... [2020-11-30 00:29:35,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7619ea6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:29:35, skipping insertion in model container [2020-11-30 00:29:35,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35" (3/3) ... [2020-11-30 00:29:35,442 INFO L111 eAbstractionObserver]: Analyzing ICFG merge_sort-1.i [2020-11-30 00:29:35,461 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:29:35,468 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 105 error locations. [2020-11-30 00:29:35,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2020-11-30 00:29:35,517 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:29:35,517 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-30 00:29:35,518 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:29:35,518 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:29:35,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:29:35,518 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:29:35,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:29:35,518 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:29:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-11-30 00:29:35,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:29:35,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:35,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:35,569 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:35,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1669507998, now seen corresponding path program 1 times [2020-11-30 00:29:35,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:35,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498008087] [2020-11-30 00:29:35,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:35,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498008087] [2020-11-30 00:29:35,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:35,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:35,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549057710] [2020-11-30 00:29:35,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 00:29:35,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:35,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:29:35,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:35,922 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-11-30 00:29:36,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:36,920 INFO L93 Difference]: Finished difference Result 322 states and 357 transitions. [2020-11-30 00:29:36,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:29:36,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-30 00:29:36,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:36,941 INFO L225 Difference]: With dead ends: 322 [2020-11-30 00:29:36,942 INFO L226 Difference]: Without dead ends: 317 [2020-11-30 00:29:36,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:29:36,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-30 00:29:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 279. [2020-11-30 00:29:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-11-30 00:29:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 305 transitions. [2020-11-30 00:29:37,087 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 305 transitions. Word has length 9 [2020-11-30 00:29:37,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:37,088 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 305 transitions. [2020-11-30 00:29:37,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 00:29:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 305 transitions. [2020-11-30 00:29:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:29:37,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:37,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:37,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:29:37,094 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:37,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:37,095 INFO L82 PathProgramCache]: Analyzing trace with hash 214093638, now seen corresponding path program 1 times [2020-11-30 00:29:37,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:37,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841529868] [2020-11-30 00:29:37,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:37,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:37,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841529868] [2020-11-30 00:29:37,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:37,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:37,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818091220] [2020-11-30 00:29:37,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:37,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:37,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:37,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:37,290 INFO L87 Difference]: Start difference. First operand 279 states and 305 transitions. Second operand 4 states. [2020-11-30 00:29:38,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:38,653 INFO L93 Difference]: Finished difference Result 346 states and 384 transitions. [2020-11-30 00:29:38,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:38,654 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 00:29:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:38,659 INFO L225 Difference]: With dead ends: 346 [2020-11-30 00:29:38,659 INFO L226 Difference]: Without dead ends: 346 [2020-11-30 00:29:38,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:38,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-11-30 00:29:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 277. [2020-11-30 00:29:38,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-11-30 00:29:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 303 transitions. [2020-11-30 00:29:38,687 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 303 transitions. Word has length 10 [2020-11-30 00:29:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:38,694 INFO L481 AbstractCegarLoop]: Abstraction has 277 states and 303 transitions. [2020-11-30 00:29:38,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 303 transitions. [2020-11-30 00:29:38,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:29:38,695 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:38,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:38,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:29:38,696 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:38,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:38,697 INFO L82 PathProgramCache]: Analyzing trace with hash 214093637, now seen corresponding path program 1 times [2020-11-30 00:29:38,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:38,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872777889] [2020-11-30 00:29:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:38,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:38,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:38,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:38,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872777889] [2020-11-30 00:29:38,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:38,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:38,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301412958] [2020-11-30 00:29:38,819 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:38,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:38,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:38,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:38,821 INFO L87 Difference]: Start difference. First operand 277 states and 303 transitions. Second operand 4 states. [2020-11-30 00:29:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:39,949 INFO L93 Difference]: Finished difference Result 332 states and 369 transitions. [2020-11-30 00:29:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:39,950 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 00:29:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:39,954 INFO L225 Difference]: With dead ends: 332 [2020-11-30 00:29:39,954 INFO L226 Difference]: Without dead ends: 332 [2020-11-30 00:29:39,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-30 00:29:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 275. [2020-11-30 00:29:39,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-11-30 00:29:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 301 transitions. [2020-11-30 00:29:39,986 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 301 transitions. Word has length 10 [2020-11-30 00:29:39,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:39,987 INFO L481 AbstractCegarLoop]: Abstraction has 275 states and 301 transitions. [2020-11-30 00:29:39,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 301 transitions. [2020-11-30 00:29:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:29:39,999 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:39,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:40,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 00:29:40,001 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:40,001 INFO L82 PathProgramCache]: Analyzing trace with hash 360940191, now seen corresponding path program 1 times [2020-11-30 00:29:40,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:40,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019263491] [2020-11-30 00:29:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:40,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:40,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019263491] [2020-11-30 00:29:40,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:40,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 00:29:40,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293461017] [2020-11-30 00:29:40,157 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:40,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:40,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:40,159 INFO L87 Difference]: Start difference. First operand 275 states and 301 transitions. Second operand 4 states. [2020-11-30 00:29:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:41,052 INFO L93 Difference]: Finished difference Result 310 states and 337 transitions. [2020-11-30 00:29:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:29:41,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-30 00:29:41,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:41,056 INFO L225 Difference]: With dead ends: 310 [2020-11-30 00:29:41,056 INFO L226 Difference]: Without dead ends: 309 [2020-11-30 00:29:41,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:41,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-30 00:29:41,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 274. [2020-11-30 00:29:41,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-30 00:29:41,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 299 transitions. [2020-11-30 00:29:41,082 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 299 transitions. Word has length 14 [2020-11-30 00:29:41,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:41,082 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 299 transitions. [2020-11-30 00:29:41,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:41,083 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 299 transitions. [2020-11-30 00:29:41,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:29:41,083 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:41,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:41,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 00:29:41,085 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:41,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:41,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1683080499, now seen corresponding path program 1 times [2020-11-30 00:29:41,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:41,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972122643] [2020-11-30 00:29:41,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:41,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:41,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:41,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972122643] [2020-11-30 00:29:41,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:41,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:41,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479729483] [2020-11-30 00:29:41,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:41,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:41,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:41,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:41,223 INFO L87 Difference]: Start difference. First operand 274 states and 299 transitions. Second operand 4 states. [2020-11-30 00:29:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:42,207 INFO L93 Difference]: Finished difference Result 316 states and 347 transitions. [2020-11-30 00:29:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:42,208 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 00:29:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:42,210 INFO L225 Difference]: With dead ends: 316 [2020-11-30 00:29:42,210 INFO L226 Difference]: Without dead ends: 316 [2020-11-30 00:29:42,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-30 00:29:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 272. [2020-11-30 00:29:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-30 00:29:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 297 transitions. [2020-11-30 00:29:42,226 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 297 transitions. Word has length 15 [2020-11-30 00:29:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:42,227 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 297 transitions. [2020-11-30 00:29:42,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:42,227 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 297 transitions. [2020-11-30 00:29:42,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:29:42,228 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:42,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:42,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 00:29:42,229 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:42,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:42,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1683080500, now seen corresponding path program 1 times [2020-11-30 00:29:42,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:42,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062140736] [2020-11-30 00:29:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:42,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:42,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:42,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062140736] [2020-11-30 00:29:42,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:42,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:29:42,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664337695] [2020-11-30 00:29:42,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:29:42,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:42,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:29:42,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:42,393 INFO L87 Difference]: Start difference. First operand 272 states and 297 transitions. Second operand 4 states. [2020-11-30 00:29:43,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:43,456 INFO L93 Difference]: Finished difference Result 326 states and 358 transitions. [2020-11-30 00:29:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:29:43,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-30 00:29:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:43,460 INFO L225 Difference]: With dead ends: 326 [2020-11-30 00:29:43,461 INFO L226 Difference]: Without dead ends: 326 [2020-11-30 00:29:43,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:29:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-11-30 00:29:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 270. [2020-11-30 00:29:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-30 00:29:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 295 transitions. [2020-11-30 00:29:43,486 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 295 transitions. Word has length 15 [2020-11-30 00:29:43,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:43,487 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 295 transitions. [2020-11-30 00:29:43,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:29:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 295 transitions. [2020-11-30 00:29:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 00:29:43,493 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:43,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:43,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 00:29:43,499 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:43,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1200517425, now seen corresponding path program 1 times [2020-11-30 00:29:43,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:43,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140194213] [2020-11-30 00:29:43,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:43,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:43,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140194213] [2020-11-30 00:29:43,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:43,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 00:29:43,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819312779] [2020-11-30 00:29:43,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:29:43,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:43,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:29:43,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:29:43,647 INFO L87 Difference]: Start difference. First operand 270 states and 295 transitions. Second operand 5 states. [2020-11-30 00:29:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:44,804 INFO L93 Difference]: Finished difference Result 329 states and 361 transitions. [2020-11-30 00:29:44,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:29:44,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-30 00:29:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:44,808 INFO L225 Difference]: With dead ends: 329 [2020-11-30 00:29:44,808 INFO L226 Difference]: Without dead ends: 329 [2020-11-30 00:29:44,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:44,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2020-11-30 00:29:44,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 270. [2020-11-30 00:29:44,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-30 00:29:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 294 transitions. [2020-11-30 00:29:44,825 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 294 transitions. Word has length 21 [2020-11-30 00:29:44,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:44,827 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 294 transitions. [2020-11-30 00:29:44,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:29:44,828 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 294 transitions. [2020-11-30 00:29:44,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:29:44,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:44,830 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:44,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 00:29:44,830 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:44,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:44,831 INFO L82 PathProgramCache]: Analyzing trace with hash -84878857, now seen corresponding path program 1 times [2020-11-30 00:29:44,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:44,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409601104] [2020-11-30 00:29:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:45,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:45,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409601104] [2020-11-30 00:29:45,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:45,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:45,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947539014] [2020-11-30 00:29:45,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:29:45,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:45,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:45,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:45,033 INFO L87 Difference]: Start difference. First operand 270 states and 294 transitions. Second operand 7 states. [2020-11-30 00:29:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:46,677 INFO L93 Difference]: Finished difference Result 310 states and 341 transitions. [2020-11-30 00:29:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:29:46,678 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-11-30 00:29:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:46,681 INFO L225 Difference]: With dead ends: 310 [2020-11-30 00:29:46,681 INFO L226 Difference]: Without dead ends: 310 [2020-11-30 00:29:46,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:29:46,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-11-30 00:29:46,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 263. [2020-11-30 00:29:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-11-30 00:29:46,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 289 transitions. [2020-11-30 00:29:46,695 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 289 transitions. Word has length 25 [2020-11-30 00:29:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:46,696 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 289 transitions. [2020-11-30 00:29:46,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:29:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 289 transitions. [2020-11-30 00:29:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 00:29:46,697 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:46,697 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:46,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 00:29:46,698 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:46,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:46,699 INFO L82 PathProgramCache]: Analyzing trace with hash -84878856, now seen corresponding path program 1 times [2020-11-30 00:29:46,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:46,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413887599] [2020-11-30 00:29:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:46,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:46,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413887599] [2020-11-30 00:29:46,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:46,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:46,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884498736] [2020-11-30 00:29:46,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:29:46,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:46,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:46,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:46,928 INFO L87 Difference]: Start difference. First operand 263 states and 289 transitions. Second operand 7 states. [2020-11-30 00:29:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:48,634 INFO L93 Difference]: Finished difference Result 386 states and 430 transitions. [2020-11-30 00:29:48,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:29:48,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-11-30 00:29:48,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:48,637 INFO L225 Difference]: With dead ends: 386 [2020-11-30 00:29:48,638 INFO L226 Difference]: Without dead ends: 386 [2020-11-30 00:29:48,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:29:48,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-11-30 00:29:48,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 291. [2020-11-30 00:29:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-11-30 00:29:48,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 327 transitions. [2020-11-30 00:29:48,655 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 327 transitions. Word has length 25 [2020-11-30 00:29:48,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:48,659 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 327 transitions. [2020-11-30 00:29:48,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:29:48,659 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 327 transitions. [2020-11-30 00:29:48,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-30 00:29:48,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:48,662 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:48,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 00:29:48,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:48,663 INFO L82 PathProgramCache]: Analyzing trace with hash 49803751, now seen corresponding path program 1 times [2020-11-30 00:29:48,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:48,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144375077] [2020-11-30 00:29:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:48,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:48,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144375077] [2020-11-30 00:29:48,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:48,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:29:48,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115917708] [2020-11-30 00:29:48,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 00:29:48,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:48,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:29:48,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:29:48,840 INFO L87 Difference]: Start difference. First operand 291 states and 327 transitions. Second operand 7 states. [2020-11-30 00:29:50,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:50,112 INFO L93 Difference]: Finished difference Result 354 states and 391 transitions. [2020-11-30 00:29:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:29:50,112 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-11-30 00:29:50,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:50,115 INFO L225 Difference]: With dead ends: 354 [2020-11-30 00:29:50,115 INFO L226 Difference]: Without dead ends: 354 [2020-11-30 00:29:50,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:29:50,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-30 00:29:50,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 290. [2020-11-30 00:29:50,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-11-30 00:29:50,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 323 transitions. [2020-11-30 00:29:50,128 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 323 transitions. Word has length 27 [2020-11-30 00:29:50,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:50,128 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 323 transitions. [2020-11-30 00:29:50,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 00:29:50,129 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 323 transitions. [2020-11-30 00:29:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-30 00:29:50,130 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:50,130 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:50,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-30 00:29:50,131 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:50,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:50,132 INFO L82 PathProgramCache]: Analyzing trace with hash 823685700, now seen corresponding path program 1 times [2020-11-30 00:29:50,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:50,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938405983] [2020-11-30 00:29:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:50,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:29:50,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938405983] [2020-11-30 00:29:50,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:50,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:50,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520968698] [2020-11-30 00:29:50,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:50,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:50,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:50,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:50,271 INFO L87 Difference]: Start difference. First operand 290 states and 323 transitions. Second operand 6 states. [2020-11-30 00:29:51,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:51,300 INFO L93 Difference]: Finished difference Result 309 states and 343 transitions. [2020-11-30 00:29:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:51,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-30 00:29:51,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:51,304 INFO L225 Difference]: With dead ends: 309 [2020-11-30 00:29:51,304 INFO L226 Difference]: Without dead ends: 309 [2020-11-30 00:29:51,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-30 00:29:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 289. [2020-11-30 00:29:51,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 00:29:51,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 320 transitions. [2020-11-30 00:29:51,321 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 320 transitions. Word has length 34 [2020-11-30 00:29:51,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:51,321 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 320 transitions. [2020-11-30 00:29:51,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:51,322 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 320 transitions. [2020-11-30 00:29:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-30 00:29:51,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:51,323 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:51,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 00:29:51,324 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:51,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:51,325 INFO L82 PathProgramCache]: Analyzing trace with hash -222097266, now seen corresponding path program 1 times [2020-11-30 00:29:51,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:51,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996950376] [2020-11-30 00:29:51,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:51,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:51,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:29:51,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996950376] [2020-11-30 00:29:51,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:51,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 00:29:51,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864248703] [2020-11-30 00:29:51,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:29:51,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:51,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:29:51,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:29:51,482 INFO L87 Difference]: Start difference. First operand 289 states and 320 transitions. Second operand 6 states. [2020-11-30 00:29:52,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:52,447 INFO L93 Difference]: Finished difference Result 308 states and 340 transitions. [2020-11-30 00:29:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:29:52,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-30 00:29:52,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:52,450 INFO L225 Difference]: With dead ends: 308 [2020-11-30 00:29:52,450 INFO L226 Difference]: Without dead ends: 308 [2020-11-30 00:29:52,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-11-30 00:29:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 288. [2020-11-30 00:29:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-30 00:29:52,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 317 transitions. [2020-11-30 00:29:52,463 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 317 transitions. Word has length 34 [2020-11-30 00:29:52,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:52,464 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 317 transitions. [2020-11-30 00:29:52,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:29:52,464 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 317 transitions. [2020-11-30 00:29:52,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 00:29:52,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:52,466 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:52,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 00:29:52,467 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:52,468 INFO L82 PathProgramCache]: Analyzing trace with hash 907327601, now seen corresponding path program 1 times [2020-11-30 00:29:52,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:52,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952680450] [2020-11-30 00:29:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:52,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:52,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:52,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952680450] [2020-11-30 00:29:52,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:52,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 00:29:52,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977903727] [2020-11-30 00:29:52,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:29:52,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:52,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:29:52,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:52,667 INFO L87 Difference]: Start difference. First operand 288 states and 317 transitions. Second operand 9 states. [2020-11-30 00:29:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:54,443 INFO L93 Difference]: Finished difference Result 343 states and 375 transitions. [2020-11-30 00:29:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:29:54,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-11-30 00:29:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:54,447 INFO L225 Difference]: With dead ends: 343 [2020-11-30 00:29:54,447 INFO L226 Difference]: Without dead ends: 343 [2020-11-30 00:29:54,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-11-30 00:29:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-11-30 00:29:54,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 288. [2020-11-30 00:29:54,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-30 00:29:54,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 316 transitions. [2020-11-30 00:29:54,460 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 316 transitions. Word has length 37 [2020-11-30 00:29:54,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:54,461 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 316 transitions. [2020-11-30 00:29:54,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:29:54,461 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 316 transitions. [2020-11-30 00:29:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-30 00:29:54,462 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:54,463 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:54,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 00:29:54,463 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:54,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:54,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1383343236, now seen corresponding path program 1 times [2020-11-30 00:29:54,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:54,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023462956] [2020-11-30 00:29:54,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:54,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:54,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023462956] [2020-11-30 00:29:54,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:54,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 00:29:54,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42660196] [2020-11-30 00:29:54,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 00:29:54,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:54,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 00:29:54,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-11-30 00:29:54,654 INFO L87 Difference]: Start difference. First operand 288 states and 316 transitions. Second operand 9 states. [2020-11-30 00:29:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:56,050 INFO L93 Difference]: Finished difference Result 342 states and 373 transitions. [2020-11-30 00:29:56,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 00:29:56,050 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2020-11-30 00:29:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:56,052 INFO L225 Difference]: With dead ends: 342 [2020-11-30 00:29:56,053 INFO L226 Difference]: Without dead ends: 342 [2020-11-30 00:29:56,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-11-30 00:29:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-11-30 00:29:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 288. [2020-11-30 00:29:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-11-30 00:29:56,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-11-30 00:29:56,065 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 37 [2020-11-30 00:29:56,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:56,066 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-11-30 00:29:56,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 00:29:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-11-30 00:29:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:29:56,072 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:56,072 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:56,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 00:29:56,073 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:56,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:56,074 INFO L82 PathProgramCache]: Analyzing trace with hash -109597017, now seen corresponding path program 1 times [2020-11-30 00:29:56,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:56,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137456117] [2020-11-30 00:29:56,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:56,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:56,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:56,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137456117] [2020-11-30 00:29:56,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:56,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-30 00:29:56,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146630535] [2020-11-30 00:29:56,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:29:56,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:56,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:29:56,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:29:56,334 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 11 states. [2020-11-30 00:29:58,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:29:58,553 INFO L93 Difference]: Finished difference Result 356 states and 391 transitions. [2020-11-30 00:29:58,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:29:58,554 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-11-30 00:29:58,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:29:58,557 INFO L225 Difference]: With dead ends: 356 [2020-11-30 00:29:58,557 INFO L226 Difference]: Without dead ends: 356 [2020-11-30 00:29:58,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-11-30 00:29:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-30 00:29:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 289. [2020-11-30 00:29:58,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 00:29:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 317 transitions. [2020-11-30 00:29:58,577 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 317 transitions. Word has length 36 [2020-11-30 00:29:58,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:29:58,579 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 317 transitions. [2020-11-30 00:29:58,579 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:29:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 317 transitions. [2020-11-30 00:29:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:29:58,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:29:58,583 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:29:58,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 00:29:58,583 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:29:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:29:58,584 INFO L82 PathProgramCache]: Analyzing trace with hash -109597016, now seen corresponding path program 1 times [2020-11-30 00:29:58,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:29:58,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564850431] [2020-11-30 00:29:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:29:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:29:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:29:58,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:29:58,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564850431] [2020-11-30 00:29:58,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:29:58,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 00:29:58,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980370017] [2020-11-30 00:29:58,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:29:58,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:29:58,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:29:58,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:29:58,844 INFO L87 Difference]: Start difference. First operand 289 states and 317 transitions. Second operand 10 states. [2020-11-30 00:30:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:00,665 INFO L93 Difference]: Finished difference Result 369 states and 404 transitions. [2020-11-30 00:30:00,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:30:00,666 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-11-30 00:30:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:00,668 INFO L225 Difference]: With dead ends: 369 [2020-11-30 00:30:00,669 INFO L226 Difference]: Without dead ends: 369 [2020-11-30 00:30:00,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-11-30 00:30:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-11-30 00:30:00,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 289. [2020-11-30 00:30:00,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 00:30:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 316 transitions. [2020-11-30 00:30:00,683 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 316 transitions. Word has length 36 [2020-11-30 00:30:00,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:00,683 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 316 transitions. [2020-11-30 00:30:00,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:30:00,683 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 316 transitions. [2020-11-30 00:30:00,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:30:00,685 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:00,685 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:00,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 00:30:00,685 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:30:00,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:00,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1983893577, now seen corresponding path program 1 times [2020-11-30 00:30:00,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:30:00,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992915536] [2020-11-30 00:30:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:30:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:00,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:30:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:00,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992915536] [2020-11-30 00:30:00,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:00,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-30 00:30:00,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574654297] [2020-11-30 00:30:00,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 00:30:00,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:30:00,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 00:30:00,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-30 00:30:00,943 INFO L87 Difference]: Start difference. First operand 289 states and 316 transitions. Second operand 11 states. [2020-11-30 00:30:02,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:02,976 INFO L93 Difference]: Finished difference Result 354 states and 389 transitions. [2020-11-30 00:30:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-30 00:30:02,977 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-11-30 00:30:02,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:02,980 INFO L225 Difference]: With dead ends: 354 [2020-11-30 00:30:02,980 INFO L226 Difference]: Without dead ends: 354 [2020-11-30 00:30:02,981 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-11-30 00:30:02,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-11-30 00:30:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 289. [2020-11-30 00:30:02,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 00:30:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 315 transitions. [2020-11-30 00:30:02,997 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 315 transitions. Word has length 36 [2020-11-30 00:30:02,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:02,998 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 315 transitions. [2020-11-30 00:30:02,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 00:30:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 315 transitions. [2020-11-30 00:30:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-30 00:30:03,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:03,000 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:03,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 00:30:03,001 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:30:03,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:03,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1983893578, now seen corresponding path program 1 times [2020-11-30 00:30:03,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:30:03,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082761767] [2020-11-30 00:30:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:30:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-30 00:30:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:03,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082761767] [2020-11-30 00:30:03,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:03,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 00:30:03,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047097552] [2020-11-30 00:30:03,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:30:03,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:30:03,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:30:03,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:30:03,304 INFO L87 Difference]: Start difference. First operand 289 states and 315 transitions. Second operand 10 states. [2020-11-30 00:30:05,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:05,184 INFO L93 Difference]: Finished difference Result 367 states and 402 transitions. [2020-11-30 00:30:05,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 00:30:05,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-11-30 00:30:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:05,188 INFO L225 Difference]: With dead ends: 367 [2020-11-30 00:30:05,188 INFO L226 Difference]: Without dead ends: 367 [2020-11-30 00:30:05,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-11-30 00:30:05,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-11-30 00:30:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 289. [2020-11-30 00:30:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-11-30 00:30:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 314 transitions. [2020-11-30 00:30:05,209 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 314 transitions. Word has length 36 [2020-11-30 00:30:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:05,210 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 314 transitions. [2020-11-30 00:30:05,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:30:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 314 transitions. [2020-11-30 00:30:05,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-11-30 00:30:05,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:05,211 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:05,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 00:30:05,212 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_pairErr14REQUIRES_VIOLATION, merge_pairErr4REQUIRES_VIOLATION, merge_pairErr15REQUIRES_VIOLATION, merge_pairErr2REQUIRES_VIOLATION, merge_pairErr13REQUIRES_VIOLATION, merge_pairErr3REQUIRES_VIOLATION, merge_pairErr1REQUIRES_VIOLATION, merge_pairErr12REQUIRES_VIOLATION, merge_pairErr10REQUIRES_VIOLATION, merge_pairErr21REQUIRES_VIOLATION, merge_pairErr0REQUIRES_VIOLATION, merge_pairErr11REQUIRES_VIOLATION, merge_pairErr9REQUIRES_VIOLATION, merge_pairErr20REQUIRES_VIOLATION, merge_pairErr18REQUIRES_VIOLATION, merge_pairErr8REQUIRES_VIOLATION, merge_pairErr19REQUIRES_VIOLATION, merge_pairErr6REQUIRES_VIOLATION, merge_pairErr17REQUIRES_VIOLATION, merge_pairErr7REQUIRES_VIOLATION, merge_pairErr5REQUIRES_VIOLATION, merge_pairErr16REQUIRES_VIOLATION, merge_single_nodeErr9REQUIRES_VIOLATION, merge_single_nodeErr8REQUIRES_VIOLATION, merge_single_nodeErr12REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr11REQUIRES_VIOLATION, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr10REQUIRES_VIOLATION, merge_single_nodeErr4REQUIRES_VIOLATION, merge_single_nodeErr3REQUIRES_VIOLATION, merge_single_nodeErr13REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION, merge_single_nodeErr7REQUIRES_VIOLATION, merge_single_nodeErr6REQUIRES_VIOLATION, merge_single_nodeErr5REQUIRES_VIOLATION, seq_sort_coreErr4REQUIRES_VIOLATION, seq_sort_coreErr2REQUIRES_VIOLATION, seq_sort_coreErr14ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr3REQUIRES_VIOLATION, seq_sort_coreErr6REQUIRES_VIOLATION, seq_sort_coreErr7REQUIRES_VIOLATION, seq_sort_coreErr5REQUIRES_VIOLATION, seq_sort_coreErr9REQUIRES_VIOLATION, seq_sort_coreErr12ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr13ASSERT_VIOLATIONMEMORY_FREE, seq_sort_coreErr8REQUIRES_VIOLATION, seq_sort_coreErr0REQUIRES_VIOLATION, seq_sort_coreErr10REQUIRES_VIOLATION, seq_sort_coreErr1REQUIRES_VIOLATION, seq_sort_coreErr11REQUIRES_VIOLATION, inspect_beforeErr16REQUIRES_VIOLATION, inspect_beforeErr5REQUIRES_VIOLATION, inspect_beforeErr7REQUIRES_VIOLATION, inspect_beforeErr6REQUIRES_VIOLATION, inspect_beforeErr17REQUIRES_VIOLATION, inspect_beforeErr3REQUIRES_VIOLATION, inspect_beforeErr2REQUIRES_VIOLATION, inspect_beforeErr13REQUIRES_VIOLATION, inspect_beforeErr4REQUIRES_VIOLATION, inspect_beforeErr15REQUIRES_VIOLATION, inspect_beforeErr14REQUIRES_VIOLATION, inspect_beforeErr0REQUIRES_VIOLATION, inspect_beforeErr11REQUIRES_VIOLATION, inspect_beforeErr10REQUIRES_VIOLATION, inspect_beforeErr12REQUIRES_VIOLATION, inspect_beforeErr1REQUIRES_VIOLATION, inspect_beforeErr8REQUIRES_VIOLATION, inspect_beforeErr19REQUIRES_VIOLATION, inspect_beforeErr18REQUIRES_VIOLATION, inspect_beforeErr9REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr14ASSERT_VIOLATIONMEMORY_FREE, mainErr9REQUIRES_VIOLATION, mainErr13ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr12ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr19ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr17ASSERT_VIOLATIONMEMORY_FREE, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr18ASSERT_VIOLATIONMEMORY_FREE, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr20ENSURES_VIOLATIONMEMORY_LEAK, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, inspect_afterErr2REQUIRES_VIOLATION, inspect_afterErr3REQUIRES_VIOLATION, inspect_afterErr8REQUIRES_VIOLATION, inspect_afterErr9REQUIRES_VIOLATION, inspect_afterErr4REQUIRES_VIOLATION, inspect_afterErr5REQUIRES_VIOLATION, inspect_afterErr10REQUIRES_VIOLATION, inspect_afterErr0REQUIRES_VIOLATION, inspect_afterErr11REQUIRES_VIOLATION, inspect_afterErr1REQUIRES_VIOLATION, inspect_afterErr6REQUIRES_VIOLATION, inspect_afterErr7REQUIRES_VIOLATION]=== [2020-11-30 00:30:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:05,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1789541438, now seen corresponding path program 1 times [2020-11-30 00:30:05,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:30:05,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566003317] [2020-11-30 00:30:05,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:30:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:30:05,259 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:30:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:30:05,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:30:05,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:30:05,354 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:30:05,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 00:30:05,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:30:05 BoogieIcfgContainer [2020-11-30 00:30:05,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:30:05,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:30:05,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:30:05,431 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:30:05,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:29:35" (3/4) ... [2020-11-30 00:30:05,438 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:30:05,526 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_193678e1-edd8-46db-a942-4204a9aad71f/bin/uautomizer/witness.graphml [2020-11-30 00:30:05,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:30:05,530 INFO L168 Benchmark]: Toolchain (without parser) took 32872.41 ms. Allocated memory was 92.3 MB in the beginning and 251.7 MB in the end (delta: 159.4 MB). Free memory was 55.6 MB in the beginning and 124.4 MB in the end (delta: -68.7 MB). Peak memory consumption was 89.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,530 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 92.3 MB. Free memory is still 73.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:05,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.15 ms. Allocated memory is still 92.3 MB. Free memory was 55.4 MB in the beginning and 55.7 MB in the end (delta: -226.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,532 INFO L168 Benchmark]: Boogie Preprocessor took 184.17 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 51.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,533 INFO L168 Benchmark]: RCFGBuilder took 1809.82 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 51.5 MB in the beginning and 66.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,533 INFO L168 Benchmark]: TraceAbstraction took 30006.11 ms. Allocated memory was 113.2 MB in the beginning and 251.7 MB in the end (delta: 138.4 MB). Free memory was 66.2 MB in the beginning and 127.5 MB in the end (delta: -61.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,534 INFO L168 Benchmark]: Witness Printer took 96.53 ms. Allocated memory is still 251.7 MB. Free memory was 127.5 MB in the beginning and 124.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:05,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 92.3 MB. Free memory is still 73.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 743.15 ms. Allocated memory is still 92.3 MB. Free memory was 55.4 MB in the beginning and 55.7 MB in the end (delta: -226.1 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 184.17 ms. Allocated memory is still 92.3 MB. Free memory was 55.7 MB in the beginning and 51.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1809.82 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 51.5 MB in the beginning and 66.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30006.11 ms. Allocated memory was 113.2 MB in the beginning and 251.7 MB in the end (delta: 138.4 MB). Free memory was 66.2 MB in the beginning and 127.5 MB in the end (delta: -61.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 16.1 GB. * Witness Printer took 96.53 ms. Allocated memory is still 251.7 MB. Free memory was 127.5 MB in the beginning and 124.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); VAL [data={0:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L641] COND FALSE !(!node) VAL [data={0:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L643] node->next = node VAL [data={0:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L644] node->value = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=-2, data={0:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L645] struct list *item = malloc(sizeof *item); VAL [data={0:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L646] COND FALSE !(!item) VAL [data={0:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L648] item->slist = node VAL [data={0:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L649] item->next = data VAL [data={0:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L650] data = item VAL [data={-3:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) VAL [data={-3:0}, item={-3:0}, malloc(sizeof *item)={-3:0}, malloc(sizeof *node)={-1:0}, node={-1:0}] [L654] CALL inspect_before(data) VAL [shape={-3:0}] [L615] COND FALSE !(!(shape)) VAL [shape={-3:0}, shape={-3:0}] [L616] shape->next VAL [shape={-3:0}, shape={-3:0}, shape->next={0:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-3:0}, shape={-3:0}] [L623] EXPR shape->next VAL [shape={-3:0}, shape={-3:0}, shape->next={0:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-3:0}, shape={-3:0}, shape->slist={-1:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist VAL [shape={-3:0}, shape={-3:0}, shape->slist={-1:0}] [L625] EXPR shape->slist->next VAL [shape={-3:0}, shape={-3:0}, shape->slist={-1:0}, shape->slist->next={-1:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "merge_sort-1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 290 locations, 105 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.8s, OverallIterations: 19, TraceHistogramMax: 2, AutomataDifference: 25.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3528 SDtfs, 5203 SDslu, 5545 SDs, 0 SdLazy, 16502 SolverSat, 673 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 200 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 439 ConstructedInterpolants, 0 QuantifiedInterpolants, 91709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...