./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-circular-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_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-circular-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/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 e585ced56eb20cb86f32939eb5fca0773c487edc ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 [2020-11-29 23:59:14,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:59:14,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:59:15,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:59:15,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:59:15,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:59:15,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:59:15,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:59:15,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:59:15,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:59:15,087 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:59:15,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:59:15,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:59:15,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:59:15,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:59:15,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:59:15,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:59:15,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:59:15,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:59:15,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:59:15,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:59:15,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:59:15,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:59:15,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:59:15,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:59:15,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:59:15,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:59:15,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:59:15,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:59:15,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:59:15,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:59:15,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:59:15,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:59:15,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:59:15,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:59:15,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:59:15,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:59:15,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:59:15,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:59:15,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:59:15,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:59:15,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-29 23:59:15,182 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:59:15,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:59:15,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:59:15,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:59:15,184 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:59:15,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:59:15,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:59:15,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:59:15,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:59:15,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:59:15,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:59:15,187 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 23:59:15,187 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 23:59:15,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:59:15,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 23:59:15,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:59:15,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:59:15,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:59:15,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:59:15,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:59:15,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:59:15,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:59:15,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:59:15,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:59:15,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:59:15,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:59:15,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:59:15,191 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_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e585ced56eb20cb86f32939eb5fca0773c487edc [2020-11-29 23:59:15,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:59:15,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:59:15,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:59:15,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:59:15,528 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:59:15,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-circular-1.i [2020-11-29 23:59:15,631 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/data/0682c84cb/77660cab350b431ca29b07c95d669177/FLAGecd99c934 [2020-11-29 23:59:16,169 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:59:16,170 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/sv-benchmarks/c/forester-heap/dll-circular-1.i [2020-11-29 23:59:16,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/data/0682c84cb/77660cab350b431ca29b07c95d669177/FLAGecd99c934 [2020-11-29 23:59:16,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/data/0682c84cb/77660cab350b431ca29b07c95d669177 [2020-11-29 23:59:16,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:59:16,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 23:59:16,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:59:16,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:59:16,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:59:16,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:16,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5eb4e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16, skipping insertion in model container [2020-11-29 23:59:16,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:16,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:59:16,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:59:16,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:59:16,875 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:59:16,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:59:16,974 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:59:16,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16 WrapperNode [2020-11-29 23:59:16,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:59:16,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:59:16,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:59:16,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:59:16,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:16,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,002 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... [2020-11-29 23:59:17,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:59:17,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:59:17,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:59:17,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:59:17,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/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 [2020-11-29 23:59:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 23:59:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:59:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 23:59:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 23:59:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 23:59:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 23:59:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 23:59:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 23:59:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 23:59:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 23:59:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 23:59:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 23:59:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 23:59:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 23:59:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 23:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 23:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 23:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 23:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 23:59:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 23:59:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 23:59:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 23:59:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 23:59:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 23:59:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 23:59:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 23:59:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 23:59:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 23:59:17,113 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-29 23:59:17,114 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 23:59:17,115 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 23:59:17,116 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 23:59:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 23:59:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 23:59:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 23:59:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 23:59:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 23:59:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 23:59:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 23:59:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 23:59:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 23:59:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:59:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:59:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:59:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 23:59:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:59:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:59:17,866 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:59:17,867 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 23:59:17,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:59:17 BoogieIcfgContainer [2020-11-29 23:59:17,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:59:17,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:59:17,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:59:17,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:59:17,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:59:16" (1/3) ... [2020-11-29 23:59:17,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ac0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:59:17, skipping insertion in model container [2020-11-29 23:59:17,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:59:16" (2/3) ... [2020-11-29 23:59:17,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12ac0b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:59:17, skipping insertion in model container [2020-11-29 23:59:17,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:59:17" (3/3) ... [2020-11-29 23:59:17,883 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i [2020-11-29 23:59:17,893 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:59:17,897 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 48 error locations. [2020-11-29 23:59:17,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2020-11-29 23:59:17,947 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:59:17,947 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 23:59:17,947 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:59:17,947 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:59:17,947 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:59:17,947 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:59:17,948 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:59:17,948 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:59:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-11-29 23:59:17,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:59:17,972 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:17,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:17,974 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:17,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:17,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2076249251, now seen corresponding path program 1 times [2020-11-29 23:59:17,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:17,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355015679] [2020-11-29 23:59:17,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:18,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355015679] [2020-11-29 23:59:18,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:18,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:59:18,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239615288] [2020-11-29 23:59:18,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:59:18,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:18,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:59:18,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:59:18,232 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-11-29 23:59:18,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:18,581 INFO L93 Difference]: Finished difference Result 119 states and 128 transitions. [2020-11-29 23:59:18,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:59:18,583 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 23:59:18,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:18,592 INFO L225 Difference]: With dead ends: 119 [2020-11-29 23:59:18,592 INFO L226 Difference]: Without dead ends: 116 [2020-11-29 23:59:18,606 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 [2020-11-29 23:59:18,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-29 23:59:18,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 106. [2020-11-29 23:59:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-29 23:59:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2020-11-29 23:59:18,655 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 7 [2020-11-29 23:59:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:18,655 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2020-11-29 23:59:18,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:59:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2020-11-29 23:59:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 23:59:18,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:18,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:18,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:59:18,657 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:18,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:18,658 INFO L82 PathProgramCache]: Analyzing trace with hash -2076249250, now seen corresponding path program 1 times [2020-11-29 23:59:18,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:18,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209110210] [2020-11-29 23:59:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:18,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:18,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209110210] [2020-11-29 23:59:18,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:18,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:59:18,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660183455] [2020-11-29 23:59:18,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:59:18,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:18,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:59:18,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:59:18,757 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand 4 states. [2020-11-29 23:59:19,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:19,025 INFO L93 Difference]: Finished difference Result 114 states and 122 transitions. [2020-11-29 23:59:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:59:19,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 23:59:19,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:19,028 INFO L225 Difference]: With dead ends: 114 [2020-11-29 23:59:19,029 INFO L226 Difference]: Without dead ends: 114 [2020-11-29 23:59:19,029 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 [2020-11-29 23:59:19,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-29 23:59:19,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 102. [2020-11-29 23:59:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 23:59:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2020-11-29 23:59:19,047 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 7 [2020-11-29 23:59:19,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:19,047 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2020-11-29 23:59:19,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:59:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2020-11-29 23:59:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:59:19,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:19,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:19,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:59:19,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:19,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:19,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1174753481, now seen corresponding path program 1 times [2020-11-29 23:59:19,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:19,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464969508] [2020-11-29 23:59:19,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:19,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:19,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464969508] [2020-11-29 23:59:19,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:19,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:59:19,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907838759] [2020-11-29 23:59:19,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:59:19,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:19,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:59:19,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:59:19,193 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand 5 states. [2020-11-29 23:59:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:19,490 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2020-11-29 23:59:19,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:59:19,490 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 23:59:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:19,492 INFO L225 Difference]: With dead ends: 99 [2020-11-29 23:59:19,492 INFO L226 Difference]: Without dead ends: 99 [2020-11-29 23:59:19,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:59:19,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-11-29 23:59:19,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 90. [2020-11-29 23:59:19,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-29 23:59:19,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-11-29 23:59:19,500 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 12 [2020-11-29 23:59:19,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:19,501 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-11-29 23:59:19,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:59:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-11-29 23:59:19,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:59:19,501 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:19,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:19,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 23:59:19,502 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:19,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:19,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1174753480, now seen corresponding path program 1 times [2020-11-29 23:59:19,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:19,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102025935] [2020-11-29 23:59:19,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:19,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:19,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:19,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:19,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102025935] [2020-11-29 23:59:19,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:19,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:59:19,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252751885] [2020-11-29 23:59:19,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 23:59:19,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:19,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 23:59:19,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:59:19,659 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 5 states. [2020-11-29 23:59:19,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:19,980 INFO L93 Difference]: Finished difference Result 114 states and 123 transitions. [2020-11-29 23:59:19,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:59:19,981 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-29 23:59:19,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:19,982 INFO L225 Difference]: With dead ends: 114 [2020-11-29 23:59:19,982 INFO L226 Difference]: Without dead ends: 114 [2020-11-29 23:59:19,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:59:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-11-29 23:59:19,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 98. [2020-11-29 23:59:19,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-29 23:59:19,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 109 transitions. [2020-11-29 23:59:19,991 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 109 transitions. Word has length 12 [2020-11-29 23:59:19,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:19,992 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 109 transitions. [2020-11-29 23:59:19,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 23:59:19,992 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 109 transitions. [2020-11-29 23:59:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 23:59:19,993 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:19,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:19,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 23:59:19,993 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:19,994 INFO L82 PathProgramCache]: Analyzing trace with hash 638306557, now seen corresponding path program 1 times [2020-11-29 23:59:19,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:19,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284420056] [2020-11-29 23:59:19,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:20,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284420056] [2020-11-29 23:59:20,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:20,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:59:20,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502981154] [2020-11-29 23:59:20,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:59:20,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:20,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:59:20,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:59:20,079 INFO L87 Difference]: Start difference. First operand 98 states and 109 transitions. Second operand 6 states. [2020-11-29 23:59:20,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:20,496 INFO L93 Difference]: Finished difference Result 146 states and 161 transitions. [2020-11-29 23:59:20,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:59:20,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 23:59:20,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:20,498 INFO L225 Difference]: With dead ends: 146 [2020-11-29 23:59:20,498 INFO L226 Difference]: Without dead ends: 146 [2020-11-29 23:59:20,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:59:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-11-29 23:59:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 97. [2020-11-29 23:59:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-11-29 23:59:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2020-11-29 23:59:20,510 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 14 [2020-11-29 23:59:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:20,510 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2020-11-29 23:59:20,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:59:20,510 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2020-11-29 23:59:20,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 23:59:20,511 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:20,511 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:20,511 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 23:59:20,512 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:20,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:20,512 INFO L82 PathProgramCache]: Analyzing trace with hash 638306558, now seen corresponding path program 1 times [2020-11-29 23:59:20,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:20,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901270574] [2020-11-29 23:59:20,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:20,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:20,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901270574] [2020-11-29 23:59:20,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:20,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:59:20,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794602236] [2020-11-29 23:59:20,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:59:20,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:20,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:59:20,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:59:20,620 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 6 states. [2020-11-29 23:59:21,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:21,127 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2020-11-29 23:59:21,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:59:21,127 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 23:59:21,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:21,128 INFO L225 Difference]: With dead ends: 147 [2020-11-29 23:59:21,128 INFO L226 Difference]: Without dead ends: 147 [2020-11-29 23:59:21,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-29 23:59:21,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 96. [2020-11-29 23:59:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-11-29 23:59:21,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2020-11-29 23:59:21,136 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 14 [2020-11-29 23:59:21,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:21,136 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2020-11-29 23:59:21,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:59:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2020-11-29 23:59:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:59:21,137 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:21,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:21,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 23:59:21,137 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:21,138 INFO L82 PathProgramCache]: Analyzing trace with hash 36841868, now seen corresponding path program 1 times [2020-11-29 23:59:21,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:21,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707624977] [2020-11-29 23:59:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:21,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:21,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:21,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707624977] [2020-11-29 23:59:21,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:21,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-29 23:59:21,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596415680] [2020-11-29 23:59:21,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:21,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:21,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:21,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:21,334 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand 9 states. [2020-11-29 23:59:21,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:21,825 INFO L93 Difference]: Finished difference Result 177 states and 192 transitions. [2020-11-29 23:59:21,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:59:21,826 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-11-29 23:59:21,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:21,827 INFO L225 Difference]: With dead ends: 177 [2020-11-29 23:59:21,827 INFO L226 Difference]: Without dead ends: 177 [2020-11-29 23:59:21,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:59:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-11-29 23:59:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 99. [2020-11-29 23:59:21,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-29 23:59:21,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2020-11-29 23:59:21,834 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 18 [2020-11-29 23:59:21,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:21,834 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2020-11-29 23:59:21,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:21,834 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2020-11-29 23:59:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:59:21,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:21,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:21,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 23:59:21,836 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:21,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:21,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1940851768, now seen corresponding path program 1 times [2020-11-29 23:59:21,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:21,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691164367] [2020-11-29 23:59:21,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:21,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:21,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:21,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691164367] [2020-11-29 23:59:21,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:21,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 23:59:21,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303329491] [2020-11-29 23:59:21,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:21,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:21,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:21,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:21,986 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand 9 states. [2020-11-29 23:59:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:22,527 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-11-29 23:59:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:59:22,528 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-29 23:59:22,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:22,529 INFO L225 Difference]: With dead ends: 140 [2020-11-29 23:59:22,529 INFO L226 Difference]: Without dead ends: 140 [2020-11-29 23:59:22,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:59:22,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-29 23:59:22,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-11-29 23:59:22,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 23:59:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2020-11-29 23:59:22,535 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 17 [2020-11-29 23:59:22,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:22,535 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2020-11-29 23:59:22,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:22,536 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2020-11-29 23:59:22,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 23:59:22,536 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:22,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:22,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 23:59:22,537 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:22,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:22,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1940851769, now seen corresponding path program 1 times [2020-11-29 23:59:22,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:22,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295892244] [2020-11-29 23:59:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:22,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:22,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295892244] [2020-11-29 23:59:22,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:22,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 23:59:22,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600861494] [2020-11-29 23:59:22,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:22,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:22,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:22,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:22,778 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand 9 states. [2020-11-29 23:59:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:23,299 INFO L93 Difference]: Finished difference Result 171 states and 186 transitions. [2020-11-29 23:59:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:59:23,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-11-29 23:59:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:23,301 INFO L225 Difference]: With dead ends: 171 [2020-11-29 23:59:23,301 INFO L226 Difference]: Without dead ends: 171 [2020-11-29 23:59:23,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:59:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-11-29 23:59:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 113. [2020-11-29 23:59:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-29 23:59:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2020-11-29 23:59:23,311 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 17 [2020-11-29 23:59:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:23,311 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2020-11-29 23:59:23,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2020-11-29 23:59:23,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:59:23,312 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:23,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:23,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 23:59:23,312 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:23,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:23,313 INFO L82 PathProgramCache]: Analyzing trace with hash 953731263, now seen corresponding path program 1 times [2020-11-29 23:59:23,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:23,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55065171] [2020-11-29 23:59:23,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:23,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:23,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55065171] [2020-11-29 23:59:23,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:23,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-29 23:59:23,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480042947] [2020-11-29 23:59:23,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:59:23,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:23,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:59:23,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:59:23,453 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 10 states. [2020-11-29 23:59:23,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:23,943 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2020-11-29 23:59:23,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 23:59:23,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-11-29 23:59:23,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:23,944 INFO L225 Difference]: With dead ends: 121 [2020-11-29 23:59:23,944 INFO L226 Difference]: Without dead ends: 121 [2020-11-29 23:59:23,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-29 23:59:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-11-29 23:59:23,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 112. [2020-11-29 23:59:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-29 23:59:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 128 transitions. [2020-11-29 23:59:23,958 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 128 transitions. Word has length 18 [2020-11-29 23:59:23,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:23,959 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 128 transitions. [2020-11-29 23:59:23,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:59:23,959 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 128 transitions. [2020-11-29 23:59:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 23:59:23,960 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:23,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:23,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 23:59:23,961 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:23,962 INFO L82 PathProgramCache]: Analyzing trace with hash 953731264, now seen corresponding path program 1 times [2020-11-29 23:59:23,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:23,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352206873] [2020-11-29 23:59:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:23,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:24,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:24,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:24,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352206873] [2020-11-29 23:59:24,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:24,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-29 23:59:24,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792527326] [2020-11-29 23:59:24,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:59:24,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:24,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:59:24,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:59:24,112 INFO L87 Difference]: Start difference. First operand 112 states and 128 transitions. Second operand 11 states. [2020-11-29 23:59:24,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:24,892 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2020-11-29 23:59:24,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 23:59:24,892 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-11-29 23:59:24,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:24,893 INFO L225 Difference]: With dead ends: 116 [2020-11-29 23:59:24,893 INFO L226 Difference]: Without dead ends: 116 [2020-11-29 23:59:24,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-29 23:59:24,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-29 23:59:24,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 101. [2020-11-29 23:59:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 23:59:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 117 transitions. [2020-11-29 23:59:24,897 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 117 transitions. Word has length 18 [2020-11-29 23:59:24,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:24,898 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 117 transitions. [2020-11-29 23:59:24,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:59:24,898 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 117 transitions. [2020-11-29 23:59:24,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 23:59:24,898 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:24,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:24,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 23:59:24,899 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:24,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1065374216, now seen corresponding path program 1 times [2020-11-29 23:59:24,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:24,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815311449] [2020-11-29 23:59:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:24,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:25,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:25,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815311449] [2020-11-29 23:59:25,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:25,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-29 23:59:25,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865806577] [2020-11-29 23:59:25,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:59:25,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:25,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:59:25,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:59:25,071 INFO L87 Difference]: Start difference. First operand 101 states and 117 transitions. Second operand 10 states. [2020-11-29 23:59:25,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:25,793 INFO L93 Difference]: Finished difference Result 147 states and 162 transitions. [2020-11-29 23:59:25,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 23:59:25,794 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-11-29 23:59:25,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:25,795 INFO L225 Difference]: With dead ends: 147 [2020-11-29 23:59:25,795 INFO L226 Difference]: Without dead ends: 147 [2020-11-29 23:59:25,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-11-29 23:59:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-29 23:59:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 101. [2020-11-29 23:59:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 23:59:25,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2020-11-29 23:59:25,800 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 20 [2020-11-29 23:59:25,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:25,800 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2020-11-29 23:59:25,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:59:25,800 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2020-11-29 23:59:25,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 23:59:25,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:25,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:25,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 23:59:25,804 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:25,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:25,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1065374217, now seen corresponding path program 1 times [2020-11-29 23:59:25,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:25,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991562851] [2020-11-29 23:59:25,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:26,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:26,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991562851] [2020-11-29 23:59:26,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:26,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 23:59:26,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729093860] [2020-11-29 23:59:26,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:26,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:26,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:26,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:26,017 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 9 states. [2020-11-29 23:59:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:26,481 INFO L93 Difference]: Finished difference Result 157 states and 172 transitions. [2020-11-29 23:59:26,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 23:59:26,482 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-11-29 23:59:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:26,483 INFO L225 Difference]: With dead ends: 157 [2020-11-29 23:59:26,483 INFO L226 Difference]: Without dead ends: 157 [2020-11-29 23:59:26,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:59:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-11-29 23:59:26,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 101. [2020-11-29 23:59:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-11-29 23:59:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 115 transitions. [2020-11-29 23:59:26,488 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 115 transitions. Word has length 20 [2020-11-29 23:59:26,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:26,488 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 115 transitions. [2020-11-29 23:59:26,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 115 transitions. [2020-11-29 23:59:26,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 23:59:26,489 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:26,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:26,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 23:59:26,489 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:26,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1333152464, now seen corresponding path program 1 times [2020-11-29 23:59:26,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:26,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135373628] [2020-11-29 23:59:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:26,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:26,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135373628] [2020-11-29 23:59:26,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:26,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-29 23:59:26,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484847051] [2020-11-29 23:59:26,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:59:26,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:26,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:59:26,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:59:26,606 INFO L87 Difference]: Start difference. First operand 101 states and 115 transitions. Second operand 8 states. [2020-11-29 23:59:26,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:26,940 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2020-11-29 23:59:26,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:59:26,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-29 23:59:26,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:26,942 INFO L225 Difference]: With dead ends: 137 [2020-11-29 23:59:26,942 INFO L226 Difference]: Without dead ends: 137 [2020-11-29 23:59:26,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:59:26,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-29 23:59:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 102. [2020-11-29 23:59:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-29 23:59:26,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2020-11-29 23:59:26,946 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 21 [2020-11-29 23:59:26,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:26,946 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2020-11-29 23:59:26,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:59:26,947 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2020-11-29 23:59:26,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 23:59:26,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:26,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:26,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 23:59:26,948 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:26,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:26,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1333152463, now seen corresponding path program 1 times [2020-11-29 23:59:26,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:26,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153661051] [2020-11-29 23:59:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:27,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:27,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:27,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153661051] [2020-11-29 23:59:27,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:27,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 23:59:27,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718558738] [2020-11-29 23:59:27,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:59:27,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:27,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:59:27,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:59:27,178 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 12 states. [2020-11-29 23:59:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:27,797 INFO L93 Difference]: Finished difference Result 147 states and 163 transitions. [2020-11-29 23:59:27,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 23:59:27,797 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 21 [2020-11-29 23:59:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:27,798 INFO L225 Difference]: With dead ends: 147 [2020-11-29 23:59:27,798 INFO L226 Difference]: Without dead ends: 147 [2020-11-29 23:59:27,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-11-29 23:59:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-11-29 23:59:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 121. [2020-11-29 23:59:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-29 23:59:27,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 150 transitions. [2020-11-29 23:59:27,803 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 150 transitions. Word has length 21 [2020-11-29 23:59:27,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:27,803 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 150 transitions. [2020-11-29 23:59:27,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:59:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 150 transitions. [2020-11-29 23:59:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 23:59:27,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:27,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:27,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 23:59:27,805 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:27,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:27,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1259258721, now seen corresponding path program 1 times [2020-11-29 23:59:27,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:27,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893652826] [2020-11-29 23:59:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:28,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:28,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893652826] [2020-11-29 23:59:28,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:28,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 23:59:28,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839001416] [2020-11-29 23:59:28,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 23:59:28,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:28,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 23:59:28,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:59:28,112 INFO L87 Difference]: Start difference. First operand 121 states and 150 transitions. Second operand 12 states. [2020-11-29 23:59:28,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:28,785 INFO L93 Difference]: Finished difference Result 160 states and 175 transitions. [2020-11-29 23:59:28,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 23:59:28,785 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 23 [2020-11-29 23:59:28,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:28,787 INFO L225 Difference]: With dead ends: 160 [2020-11-29 23:59:28,787 INFO L226 Difference]: Without dead ends: 160 [2020-11-29 23:59:28,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2020-11-29 23:59:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-11-29 23:59:28,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 122. [2020-11-29 23:59:28,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-29 23:59:28,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 151 transitions. [2020-11-29 23:59:28,792 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 151 transitions. Word has length 23 [2020-11-29 23:59:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:28,792 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 151 transitions. [2020-11-29 23:59:28,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 23:59:28,793 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 151 transitions. [2020-11-29 23:59:28,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 23:59:28,794 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:28,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:28,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 23:59:28,794 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:28,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:28,795 INFO L82 PathProgramCache]: Analyzing trace with hash -382314453, now seen corresponding path program 1 times [2020-11-29 23:59:28,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:28,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659749538] [2020-11-29 23:59:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:28,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:28,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659749538] [2020-11-29 23:59:29,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:29,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 23:59:29,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365758717] [2020-11-29 23:59:29,000 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:29,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:29,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:29,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:29,001 INFO L87 Difference]: Start difference. First operand 122 states and 151 transitions. Second operand 9 states. [2020-11-29 23:59:29,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:29,397 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2020-11-29 23:59:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 23:59:29,398 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-11-29 23:59:29,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:29,399 INFO L225 Difference]: With dead ends: 153 [2020-11-29 23:59:29,399 INFO L226 Difference]: Without dead ends: 153 [2020-11-29 23:59:29,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2020-11-29 23:59:29,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-29 23:59:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 123. [2020-11-29 23:59:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 23:59:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 152 transitions. [2020-11-29 23:59:29,411 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 152 transitions. Word has length 24 [2020-11-29 23:59:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:29,411 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 152 transitions. [2020-11-29 23:59:29,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:29,411 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 152 transitions. [2020-11-29 23:59:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:59:29,412 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:29,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:29,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 23:59:29,413 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1758832385, now seen corresponding path program 1 times [2020-11-29 23:59:29,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:29,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292367082] [2020-11-29 23:59:29,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:29,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:29,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:29,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292367082] [2020-11-29 23:59:29,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:29,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 23:59:29,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928492264] [2020-11-29 23:59:29,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:59:29,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:29,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:59:29,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:59:29,588 INFO L87 Difference]: Start difference. First operand 123 states and 152 transitions. Second operand 11 states. [2020-11-29 23:59:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:30,153 INFO L93 Difference]: Finished difference Result 135 states and 163 transitions. [2020-11-29 23:59:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 23:59:30,154 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-11-29 23:59:30,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:30,155 INFO L225 Difference]: With dead ends: 135 [2020-11-29 23:59:30,155 INFO L226 Difference]: Without dead ends: 135 [2020-11-29 23:59:30,155 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-29 23:59:30,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-29 23:59:30,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 122. [2020-11-29 23:59:30,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-29 23:59:30,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2020-11-29 23:59:30,160 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 25 [2020-11-29 23:59:30,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:30,160 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2020-11-29 23:59:30,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:59:30,160 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2020-11-29 23:59:30,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:59:30,161 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:30,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:30,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 23:59:30,161 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:30,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1033199793, now seen corresponding path program 1 times [2020-11-29 23:59:30,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:30,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369434343] [2020-11-29 23:59:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:30,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:30,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:30,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369434343] [2020-11-29 23:59:30,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:30,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 23:59:30,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308087287] [2020-11-29 23:59:30,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:59:30,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:30,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:59:30,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:59:30,327 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand 9 states. [2020-11-29 23:59:30,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:30,647 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2020-11-29 23:59:30,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:59:30,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-11-29 23:59:30,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:30,648 INFO L225 Difference]: With dead ends: 144 [2020-11-29 23:59:30,648 INFO L226 Difference]: Without dead ends: 144 [2020-11-29 23:59:30,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:59:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-29 23:59:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 124. [2020-11-29 23:59:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-29 23:59:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2020-11-29 23:59:30,653 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 25 [2020-11-29 23:59:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:30,653 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2020-11-29 23:59:30,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:59:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2020-11-29 23:59:30,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:59:30,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:30,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:30,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 23:59:30,654 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:30,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1138174537, now seen corresponding path program 1 times [2020-11-29 23:59:30,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:30,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334783470] [2020-11-29 23:59:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:30,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:30,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334783470] [2020-11-29 23:59:30,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:30,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-29 23:59:30,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045177430] [2020-11-29 23:59:30,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 23:59:30,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:30,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 23:59:30,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:59:30,935 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand 13 states. [2020-11-29 23:59:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:31,449 INFO L93 Difference]: Finished difference Result 145 states and 159 transitions. [2020-11-29 23:59:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 23:59:31,450 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 26 [2020-11-29 23:59:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:31,451 INFO L225 Difference]: With dead ends: 145 [2020-11-29 23:59:31,451 INFO L226 Difference]: Without dead ends: 145 [2020-11-29 23:59:31,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2020-11-29 23:59:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-11-29 23:59:31,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 124. [2020-11-29 23:59:31,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-29 23:59:31,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2020-11-29 23:59:31,455 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 26 [2020-11-29 23:59:31,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:31,455 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2020-11-29 23:59:31,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 23:59:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2020-11-29 23:59:31,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:59:31,456 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:31,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:31,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 23:59:31,456 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:31,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:31,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1902573219, now seen corresponding path program 1 times [2020-11-29 23:59:31,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:31,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821354376] [2020-11-29 23:59:31,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:31,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:31,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:31,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821354376] [2020-11-29 23:59:31,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:31,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 23:59:31,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38811683] [2020-11-29 23:59:31,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:59:31,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:31,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:59:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:59:31,537 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand 6 states. [2020-11-29 23:59:31,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:31,779 INFO L93 Difference]: Finished difference Result 125 states and 152 transitions. [2020-11-29 23:59:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:59:31,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-29 23:59:31,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:31,782 INFO L225 Difference]: With dead ends: 125 [2020-11-29 23:59:31,782 INFO L226 Difference]: Without dead ends: 125 [2020-11-29 23:59:31,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:59:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-29 23:59:31,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2020-11-29 23:59:31,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 23:59:31,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 148 transitions. [2020-11-29 23:59:31,787 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 148 transitions. Word has length 25 [2020-11-29 23:59:31,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:31,787 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 148 transitions. [2020-11-29 23:59:31,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:59:31,788 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 148 transitions. [2020-11-29 23:59:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 23:59:31,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:31,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:31,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 23:59:31,789 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:31,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:31,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1902573220, now seen corresponding path program 1 times [2020-11-29 23:59:31,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:31,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496479771] [2020-11-29 23:59:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:32,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:32,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:32,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496479771] [2020-11-29 23:59:32,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:32,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-29 23:59:32,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159056521] [2020-11-29 23:59:32,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 23:59:32,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:32,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 23:59:32,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:59:32,031 INFO L87 Difference]: Start difference. First operand 123 states and 148 transitions. Second operand 11 states. [2020-11-29 23:59:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:32,631 INFO L93 Difference]: Finished difference Result 141 states and 155 transitions. [2020-11-29 23:59:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 23:59:32,634 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-11-29 23:59:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:32,635 INFO L225 Difference]: With dead ends: 141 [2020-11-29 23:59:32,635 INFO L226 Difference]: Without dead ends: 141 [2020-11-29 23:59:32,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-11-29 23:59:32,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-11-29 23:59:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2020-11-29 23:59:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 23:59:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 147 transitions. [2020-11-29 23:59:32,639 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 147 transitions. Word has length 25 [2020-11-29 23:59:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:32,639 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 147 transitions. [2020-11-29 23:59:32,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 23:59:32,639 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 147 transitions. [2020-11-29 23:59:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 23:59:32,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:32,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:32,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 23:59:32,640 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1963005678, now seen corresponding path program 1 times [2020-11-29 23:59:32,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:32,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178682850] [2020-11-29 23:59:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:32,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:32,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178682850] [2020-11-29 23:59:32,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:32,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-29 23:59:32,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028166744] [2020-11-29 23:59:32,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:59:32,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:32,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:59:32,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:59:32,886 INFO L87 Difference]: Start difference. First operand 123 states and 147 transitions. Second operand 10 states. [2020-11-29 23:59:33,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:33,328 INFO L93 Difference]: Finished difference Result 139 states and 152 transitions. [2020-11-29 23:59:33,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 23:59:33,329 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-11-29 23:59:33,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:33,330 INFO L225 Difference]: With dead ends: 139 [2020-11-29 23:59:33,330 INFO L226 Difference]: Without dead ends: 139 [2020-11-29 23:59:33,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-11-29 23:59:33,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-11-29 23:59:33,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 123. [2020-11-29 23:59:33,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 23:59:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 146 transitions. [2020-11-29 23:59:33,334 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 146 transitions. Word has length 26 [2020-11-29 23:59:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:33,334 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 146 transitions. [2020-11-29 23:59:33,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:59:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 146 transitions. [2020-11-29 23:59:33,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 23:59:33,335 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:33,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:33,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 23:59:33,335 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:33,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:33,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1501107432, now seen corresponding path program 1 times [2020-11-29 23:59:33,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:33,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133835072] [2020-11-29 23:59:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:33,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 23:59:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:59:33,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:59:33,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133835072] [2020-11-29 23:59:33,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:59:33,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 23:59:33,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212632452] [2020-11-29 23:59:33,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 23:59:33,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:59:33,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:59:33,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:59:33,417 INFO L87 Difference]: Start difference. First operand 123 states and 146 transitions. Second operand 4 states. [2020-11-29 23:59:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:59:33,571 INFO L93 Difference]: Finished difference Result 190 states and 220 transitions. [2020-11-29 23:59:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:59:33,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-11-29 23:59:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:59:33,573 INFO L225 Difference]: With dead ends: 190 [2020-11-29 23:59:33,573 INFO L226 Difference]: Without dead ends: 190 [2020-11-29 23:59:33,573 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:59:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-29 23:59:33,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 138. [2020-11-29 23:59:33,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-11-29 23:59:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 163 transitions. [2020-11-29 23:59:33,578 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 163 transitions. Word has length 29 [2020-11-29 23:59:33,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:59:33,578 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 163 transitions. [2020-11-29 23:59:33,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 23:59:33,579 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 163 transitions. [2020-11-29 23:59:33,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 23:59:33,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:59:33,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:59:33,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 23:59:33,580 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr42ASSERT_VIOLATIONMEMORY_FREE, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr40ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr43ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr46ENSURES_VIOLATIONMEMORY_LEAK, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr41ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-11-29 23:59:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:59:33,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1665501681, now seen corresponding path program 1 times [2020-11-29 23:59:33,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:59:33,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878101369] [2020-11-29 23:59:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:59:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:59:33,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:59:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:59:33,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:59:33,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:59:33,661 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:59:33,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-29 23:59:33,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:59:33 BoogieIcfgContainer [2020-11-29 23:59:33,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:59:33,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:59:33,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:59:33,725 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:59:33,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:59:17" (3/4) ... [2020-11-29 23:59:33,728 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:59:33,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_55ee4d93-acf4-49f0-914b-a6a3b6e02f1c/bin/uautomizer/witness.graphml [2020-11-29 23:59:33,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:59:33,780 INFO L168 Benchmark]: Toolchain (without parser) took 17317.63 ms. Allocated memory was 86.0 MB in the beginning and 226.5 MB in the end (delta: 140.5 MB). Free memory was 53.7 MB in the beginning and 138.1 MB in the end (delta: -84.4 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,781 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 86.0 MB. Free memory was 45.8 MB in the beginning and 45.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:59:33,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.69 ms. Allocated memory is still 86.0 MB. Free memory was 53.6 MB in the beginning and 51.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,784 INFO L168 Benchmark]: Boogie Preprocessor took 61.82 ms. Allocated memory is still 86.0 MB. Free memory was 51.8 MB in the beginning and 49.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,785 INFO L168 Benchmark]: RCFGBuilder took 830.79 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 49.4 MB in the beginning and 50.2 MB in the end (delta: -811.8 kB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,785 INFO L168 Benchmark]: TraceAbstraction took 15854.59 ms. Allocated memory was 107.0 MB in the beginning and 226.5 MB in the end (delta: 119.5 MB). Free memory was 49.7 MB in the beginning and 140.2 MB in the end (delta: -90.6 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,786 INFO L168 Benchmark]: Witness Printer took 53.63 ms. Allocated memory is still 226.5 MB. Free memory was 140.2 MB in the beginning and 138.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:59:33,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 86.0 MB. Free memory was 45.8 MB in the beginning and 45.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.69 ms. Allocated memory is still 86.0 MB. Free memory was 53.6 MB in the beginning and 51.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.82 ms. Allocated memory is still 86.0 MB. Free memory was 51.8 MB in the beginning and 49.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 830.79 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 49.4 MB in the beginning and 50.2 MB in the end (delta: -811.8 kB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15854.59 ms. Allocated memory was 107.0 MB in the beginning and 226.5 MB in the end (delta: 119.5 MB). Free memory was 49.7 MB in the beginning and 140.2 MB in the end (delta: -90.6 MB). Peak memory consumption was 30.0 MB. Max. memory is 16.1 GB. * Witness Printer took 53.63 ms. Allocated memory is still 226.5 MB. Free memory was 140.2 MB in the beginning and 138.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] SLL* x = head; [L1002] int state = 1; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1005] COND FALSE !(__VERIFIER_nondet_int()) [L1027] x->data = state VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1029] EXPR head->next VAL [head={-1:0}, head->next={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1029] x = head->next [L1030] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}] [L1032] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1] [L1032] COND TRUE x->data != 0 [L1034] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}] [L1034] EXPR x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}, x->next->data=1] [L1034] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=1] [L1034] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, state=1, x={-1:0}, x->data=1, x->next={-1:0}, x->next={-1:0}, x->next->data=1, x->next->data=1, x->next->data != 0 && x->data > x->next->data=0] [L1034] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1034] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-circular-1.c", 14, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 118 locations, 48 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.7s, OverallIterations: 25, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1618 SDtfs, 4252 SDslu, 4800 SDs, 0 SdLazy, 7917 SolverSat, 458 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 719 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 494 NumberOfCodeBlocks, 494 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 79160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 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...