./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/sll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-01-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2ea18b6ba0d977117db11fbdff34c486def646c3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 03:45:04,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:45:04,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:45:04,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:45:04,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:45:04,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:45:04,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:45:04,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:45:04,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:45:04,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:45:04,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:45:04,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:45:04,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:45:04,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:45:04,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:45:04,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:45:04,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:45:04,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:45:04,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:45:04,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:45:05,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:45:05,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:45:05,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:45:05,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:45:05,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:45:05,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:45:05,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:45:05,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:45:05,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:45:05,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:45:05,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:45:05,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:45:05,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:45:05,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:45:05,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:45:05,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:45:05,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:45:05,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:45:05,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:45:05,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:45:05,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:45:05,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:45:05,095 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:45:05,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:45:05,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:45:05,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:45:05,100 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:45:05,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:45:05,101 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:45:05,101 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:45:05,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:45:05,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:45:05,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:45:05,103 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:45:05,104 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:45:05,104 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:45:05,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:45:05,105 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:45:05,105 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:45:05,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:45:05,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:45:05,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:45:05,106 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:45:05,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:45:05,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:45:05,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:45:05,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:45:05,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:45:05,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:45:05,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:45:05,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ea18b6ba0d977117db11fbdff34c486def646c3 [2020-10-26 03:45:05,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:45:05,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:45:05,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:45:05,572 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:45:05,573 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:45:05,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-01-2.i [2020-10-26 03:45:05,656 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41981326f/2fd7027f5de84d58ae1ebe5de1e72ff1/FLAG8c65c93dc [2020-10-26 03:45:06,410 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:45:06,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-01-2.i [2020-10-26 03:45:06,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41981326f/2fd7027f5de84d58ae1ebe5de1e72ff1/FLAG8c65c93dc [2020-10-26 03:45:06,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41981326f/2fd7027f5de84d58ae1ebe5de1e72ff1 [2020-10-26 03:45:06,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:45:06,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:45:06,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:45:06,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:45:06,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:45:06,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:45:06" (1/1) ... [2020-10-26 03:45:06,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b5284c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:06, skipping insertion in model container [2020-10-26 03:45:06,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:45:06" (1/1) ... [2020-10-26 03:45:06,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:45:06,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:45:07,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:45:07,187 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:45:07,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:45:07,366 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:45:07,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07 WrapperNode [2020-10-26 03:45:07,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:45:07,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:45:07,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:45:07,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:45:07,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... [2020-10-26 03:45:07,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:45:07,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:45:07,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:45:07,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:45:07,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:45:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:45:07,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:45:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:45:07,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:45:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:45:07,581 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:45:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:45:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:45:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:45:07,582 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:45:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:45:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:45:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:45:07,584 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:45:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:45:07,585 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:45:07,587 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:45:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:45:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:45:07,588 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:45:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:45:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:45:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:45:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:45:07,589 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:45:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:45:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:45:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:45:07,590 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:45:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:45:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:45:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:45:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:45:07,591 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:45:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:45:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:45:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:45:07,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:45:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:45:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:45:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:45:07,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:45:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:45:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:45:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:45:07,594 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:45:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:45:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:45:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:45:07,600 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:45:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:45:07,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:45:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:45:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:45:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:45:07,602 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:45:07,604 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-26 03:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:45:07,605 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:45:07,606 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:45:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:45:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:45:07,607 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:45:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:45:07,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:45:07,609 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:45:07,610 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:45:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:45:07,611 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:45:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:45:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:45:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:45:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:45:07,612 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:45:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:45:07,613 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:45:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:45:07,614 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:45:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:45:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:45:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:45:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:45:07,615 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:45:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:45:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:45:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:45:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:45:07,616 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:45:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:45:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:45:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:45:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:45:07,617 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:45:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:45:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:45:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:45:07,618 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:45:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:45:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:45:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:45:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:45:07,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:45:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:45:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:45:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:45:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:45:07,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:45:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:45:07,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:45:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:45:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:45:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:45:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:45:07,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:45:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:45:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:45:07,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:45:08,554 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:45:08,555 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-26 03:45:08,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:45:08 BoogieIcfgContainer [2020-10-26 03:45:08,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:45:08,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:45:08,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:45:08,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:45:08,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:45:06" (1/3) ... [2020-10-26 03:45:08,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87d7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:45:08, skipping insertion in model container [2020-10-26 03:45:08,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:45:07" (2/3) ... [2020-10-26 03:45:08,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d87d7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:45:08, skipping insertion in model container [2020-10-26 03:45:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:45:08" (3/3) ... [2020-10-26 03:45:08,569 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-01-2.i [2020-10-26 03:45:08,582 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:45:08,588 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 68 error locations. [2020-10-26 03:45:08,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2020-10-26 03:45:08,629 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:45:08,629 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:45:08,629 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:45:08,630 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:45:08,630 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:45:08,630 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:45:08,630 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:45:08,631 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:45:08,655 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-10-26 03:45:08,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:45:08,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:08,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:08,666 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:08,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971074, now seen corresponding path program 1 times [2020-10-26 03:45:08,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:08,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479320631] [2020-10-26 03:45:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:08,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:08,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479320631] [2020-10-26 03:45:08,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:08,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:45:08,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042672822] [2020-10-26 03:45:08,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:08,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:08,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:08,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:08,981 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 4 states. [2020-10-26 03:45:09,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:09,518 INFO L93 Difference]: Finished difference Result 188 states and 211 transitions. [2020-10-26 03:45:09,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:09,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:45:09,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:09,532 INFO L225 Difference]: With dead ends: 188 [2020-10-26 03:45:09,532 INFO L226 Difference]: Without dead ends: 184 [2020-10-26 03:45:09,534 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 [2020-10-26 03:45:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-26 03:45:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 179. [2020-10-26 03:45:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-26 03:45:09,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2020-10-26 03:45:09,592 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 7 [2020-10-26 03:45:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:09,593 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2020-10-26 03:45:09,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2020-10-26 03:45:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:45:09,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:09,594 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:09,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:45:09,595 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:09,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:09,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1936971075, now seen corresponding path program 1 times [2020-10-26 03:45:09,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:09,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558172013] [2020-10-26 03:45:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:09,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:09,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558172013] [2020-10-26 03:45:09,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:09,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:45:09,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680865174] [2020-10-26 03:45:09,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:09,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:09,695 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand 4 states. [2020-10-26 03:45:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:10,173 INFO L93 Difference]: Finished difference Result 206 states and 233 transitions. [2020-10-26 03:45:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:10,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:45:10,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:10,177 INFO L225 Difference]: With dead ends: 206 [2020-10-26 03:45:10,177 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 03:45:10,178 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 [2020-10-26 03:45:10,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 03:45:10,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 189. [2020-10-26 03:45:10,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-26 03:45:10,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 225 transitions. [2020-10-26 03:45:10,193 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 225 transitions. Word has length 7 [2020-10-26 03:45:10,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:10,194 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 225 transitions. [2020-10-26 03:45:10,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 225 transitions. [2020-10-26 03:45:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:45:10,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:10,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:10,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:45:10,196 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:10,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:10,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1059391795, now seen corresponding path program 1 times [2020-10-26 03:45:10,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:10,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71761046] [2020-10-26 03:45:10,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:10,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:10,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71761046] [2020-10-26 03:45:10,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:10,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:10,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038270367] [2020-10-26 03:45:10,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:10,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:10,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:10,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:10,317 INFO L87 Difference]: Start difference. First operand 189 states and 225 transitions. Second operand 4 states. [2020-10-26 03:45:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:10,699 INFO L93 Difference]: Finished difference Result 202 states and 228 transitions. [2020-10-26 03:45:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:10,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 03:45:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:10,702 INFO L225 Difference]: With dead ends: 202 [2020-10-26 03:45:10,702 INFO L226 Difference]: Without dead ends: 202 [2020-10-26 03:45:10,703 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 [2020-10-26 03:45:10,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-26 03:45:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 188. [2020-10-26 03:45:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-26 03:45:10,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 222 transitions. [2020-10-26 03:45:10,716 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 222 transitions. Word has length 11 [2020-10-26 03:45:10,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:10,717 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 222 transitions. [2020-10-26 03:45:10,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:10,717 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 222 transitions. [2020-10-26 03:45:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 03:45:10,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:10,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:10,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 03:45:10,719 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:10,720 INFO L82 PathProgramCache]: Analyzing trace with hash 921730369, now seen corresponding path program 1 times [2020-10-26 03:45:10,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:10,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661343335] [2020-10-26 03:45:10,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:10,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661343335] [2020-10-26 03:45:10,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:10,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:45:10,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193336290] [2020-10-26 03:45:10,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:45:10,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:10,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:45:10,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:10,836 INFO L87 Difference]: Start difference. First operand 188 states and 222 transitions. Second operand 6 states. [2020-10-26 03:45:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:11,820 INFO L93 Difference]: Finished difference Result 321 states and 376 transitions. [2020-10-26 03:45:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:45:11,821 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-26 03:45:11,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:11,824 INFO L225 Difference]: With dead ends: 321 [2020-10-26 03:45:11,824 INFO L226 Difference]: Without dead ends: 321 [2020-10-26 03:45:11,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-26 03:45:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 187. [2020-10-26 03:45:11,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-10-26 03:45:11,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 221 transitions. [2020-10-26 03:45:11,853 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 221 transitions. Word has length 14 [2020-10-26 03:45:11,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:11,854 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 221 transitions. [2020-10-26 03:45:11,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:45:11,854 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 221 transitions. [2020-10-26 03:45:11,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 03:45:11,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:11,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:11,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 03:45:11,858 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:11,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:11,860 INFO L82 PathProgramCache]: Analyzing trace with hash 921730370, now seen corresponding path program 1 times [2020-10-26 03:45:11,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:11,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863328462] [2020-10-26 03:45:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:12,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:12,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863328462] [2020-10-26 03:45:12,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:12,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:45:12,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644461627] [2020-10-26 03:45:12,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:45:12,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:12,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:45:12,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:12,041 INFO L87 Difference]: Start difference. First operand 187 states and 221 transitions. Second operand 6 states. [2020-10-26 03:45:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:13,127 INFO L93 Difference]: Finished difference Result 348 states and 416 transitions. [2020-10-26 03:45:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:45:13,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-26 03:45:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:13,130 INFO L225 Difference]: With dead ends: 348 [2020-10-26 03:45:13,130 INFO L226 Difference]: Without dead ends: 348 [2020-10-26 03:45:13,131 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 [2020-10-26 03:45:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-26 03:45:13,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 186. [2020-10-26 03:45:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-26 03:45:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 220 transitions. [2020-10-26 03:45:13,141 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 220 transitions. Word has length 14 [2020-10-26 03:45:13,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:13,142 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 220 transitions. [2020-10-26 03:45:13,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:45:13,142 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 220 transitions. [2020-10-26 03:45:13,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 03:45:13,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:13,143 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:13,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 03:45:13,144 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:13,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:13,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1543520439, now seen corresponding path program 1 times [2020-10-26 03:45:13,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:13,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959835120] [2020-10-26 03:45:13,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:13,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:13,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959835120] [2020-10-26 03:45:13,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:13,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:13,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015102752] [2020-10-26 03:45:13,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:45:13,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:13,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:45:13,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:13,343 INFO L87 Difference]: Start difference. First operand 186 states and 220 transitions. Second operand 9 states. [2020-10-26 03:45:14,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:14,793 INFO L93 Difference]: Finished difference Result 320 states and 374 transitions. [2020-10-26 03:45:14,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:45:14,794 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-26 03:45:14,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:14,797 INFO L225 Difference]: With dead ends: 320 [2020-10-26 03:45:14,797 INFO L226 Difference]: Without dead ends: 320 [2020-10-26 03:45:14,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:14,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-10-26 03:45:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 185. [2020-10-26 03:45:14,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-26 03:45:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 219 transitions. [2020-10-26 03:45:14,813 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 219 transitions. Word has length 17 [2020-10-26 03:45:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:14,814 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 219 transitions. [2020-10-26 03:45:14,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:45:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 219 transitions. [2020-10-26 03:45:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 03:45:14,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:14,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:14,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 03:45:14,816 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1543520440, now seen corresponding path program 1 times [2020-10-26 03:45:14,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:14,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86299653] [2020-10-26 03:45:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:15,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:15,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86299653] [2020-10-26 03:45:15,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:15,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:15,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372358604] [2020-10-26 03:45:15,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:45:15,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:15,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:45:15,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:15,008 INFO L87 Difference]: Start difference. First operand 185 states and 219 transitions. Second operand 9 states. [2020-10-26 03:45:16,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:16,604 INFO L93 Difference]: Finished difference Result 321 states and 375 transitions. [2020-10-26 03:45:16,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:45:16,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-26 03:45:16,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:16,607 INFO L225 Difference]: With dead ends: 321 [2020-10-26 03:45:16,607 INFO L226 Difference]: Without dead ends: 321 [2020-10-26 03:45:16,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:16,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-10-26 03:45:16,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 184. [2020-10-26 03:45:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-26 03:45:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 218 transitions. [2020-10-26 03:45:16,617 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 218 transitions. Word has length 17 [2020-10-26 03:45:16,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:16,617 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 218 transitions. [2020-10-26 03:45:16,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:45:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 218 transitions. [2020-10-26 03:45:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-26 03:45:16,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:16,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:16,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 03:45:16,620 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:16,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:16,620 INFO L82 PathProgramCache]: Analyzing trace with hash 293892350, now seen corresponding path program 1 times [2020-10-26 03:45:16,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:16,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846323690] [2020-10-26 03:45:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:16,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:16,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846323690] [2020-10-26 03:45:16,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:16,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:16,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540530080] [2020-10-26 03:45:16,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:16,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:16,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:16,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:16,689 INFO L87 Difference]: Start difference. First operand 184 states and 218 transitions. Second operand 4 states. [2020-10-26 03:45:16,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:16,996 INFO L93 Difference]: Finished difference Result 185 states and 219 transitions. [2020-10-26 03:45:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:16,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-26 03:45:16,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:16,999 INFO L225 Difference]: With dead ends: 185 [2020-10-26 03:45:16,999 INFO L226 Difference]: Without dead ends: 185 [2020-10-26 03:45:17,000 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 [2020-10-26 03:45:17,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-26 03:45:17,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-10-26 03:45:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-26 03:45:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 219 transitions. [2020-10-26 03:45:17,007 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 219 transitions. Word has length 19 [2020-10-26 03:45:17,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:17,008 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 219 transitions. [2020-10-26 03:45:17,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:17,008 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 219 transitions. [2020-10-26 03:45:17,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-26 03:45:17,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:17,009 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] [2020-10-26 03:45:17,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 03:45:17,010 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:17,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:17,011 INFO L82 PathProgramCache]: Analyzing trace with hash 188085731, now seen corresponding path program 1 times [2020-10-26 03:45:17,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:17,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080966678] [2020-10-26 03:45:17,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:17,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:17,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:17,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080966678] [2020-10-26 03:45:17,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:17,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:17,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075289700] [2020-10-26 03:45:17,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:45:17,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:17,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:45:17,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:17,125 INFO L87 Difference]: Start difference. First operand 185 states and 219 transitions. Second operand 8 states. [2020-10-26 03:45:17,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:17,798 INFO L93 Difference]: Finished difference Result 270 states and 318 transitions. [2020-10-26 03:45:17,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 03:45:17,801 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-26 03:45:17,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:17,803 INFO L225 Difference]: With dead ends: 270 [2020-10-26 03:45:17,803 INFO L226 Difference]: Without dead ends: 270 [2020-10-26 03:45:17,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-10-26 03:45:17,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 183. [2020-10-26 03:45:17,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-26 03:45:17,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 216 transitions. [2020-10-26 03:45:17,811 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 216 transitions. Word has length 21 [2020-10-26 03:45:17,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:17,811 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 216 transitions. [2020-10-26 03:45:17,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:45:17,811 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 216 transitions. [2020-10-26 03:45:17,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-26 03:45:17,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:17,813 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] [2020-10-26 03:45:17,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 03:45:17,813 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:17,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:17,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1260873329, now seen corresponding path program 1 times [2020-10-26 03:45:17,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:17,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608046096] [2020-10-26 03:45:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:17,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:17,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:17,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608046096] [2020-10-26 03:45:17,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:17,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:45:17,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148421901] [2020-10-26 03:45:17,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:45:17,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:17,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:45:17,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:17,889 INFO L87 Difference]: Start difference. First operand 183 states and 216 transitions. Second operand 6 states. [2020-10-26 03:45:18,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:18,369 INFO L93 Difference]: Finished difference Result 271 states and 318 transitions. [2020-10-26 03:45:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:45:18,370 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-10-26 03:45:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:18,372 INFO L225 Difference]: With dead ends: 271 [2020-10-26 03:45:18,372 INFO L226 Difference]: Without dead ends: 271 [2020-10-26 03:45:18,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:18,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-26 03:45:18,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 186. [2020-10-26 03:45:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-10-26 03:45:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2020-10-26 03:45:18,380 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 21 [2020-10-26 03:45:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:18,380 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2020-10-26 03:45:18,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:45:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2020-10-26 03:45:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 03:45:18,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:18,382 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] [2020-10-26 03:45:18,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 03:45:18,383 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:18,383 INFO L82 PathProgramCache]: Analyzing trace with hash 138180916, now seen corresponding path program 1 times [2020-10-26 03:45:18,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:18,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034514686] [2020-10-26 03:45:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:18,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:18,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034514686] [2020-10-26 03:45:18,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:18,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:18,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328962204] [2020-10-26 03:45:18,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:45:18,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:18,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:45:18,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:45:18,461 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand 5 states. [2020-10-26 03:45:18,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:18,904 INFO L93 Difference]: Finished difference Result 182 states and 213 transitions. [2020-10-26 03:45:18,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:45:18,905 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-10-26 03:45:18,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:18,906 INFO L225 Difference]: With dead ends: 182 [2020-10-26 03:45:18,906 INFO L226 Difference]: Without dead ends: 182 [2020-10-26 03:45:18,907 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-26 03:45:18,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 177. [2020-10-26 03:45:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-26 03:45:18,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 210 transitions. [2020-10-26 03:45:18,915 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 210 transitions. Word has length 23 [2020-10-26 03:45:18,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:18,915 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 210 transitions. [2020-10-26 03:45:18,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:45:18,916 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 210 transitions. [2020-10-26 03:45:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 03:45:18,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:18,919 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] [2020-10-26 03:45:18,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 03:45:18,919 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:18,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:18,920 INFO L82 PathProgramCache]: Analyzing trace with hash 138180917, now seen corresponding path program 1 times [2020-10-26 03:45:18,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:18,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508451126] [2020-10-26 03:45:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:19,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:19,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:19,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508451126] [2020-10-26 03:45:19,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:19,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:45:19,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337223436] [2020-10-26 03:45:19,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 03:45:19,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:19,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 03:45:19,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-26 03:45:19,059 INFO L87 Difference]: Start difference. First operand 177 states and 210 transitions. Second operand 7 states. [2020-10-26 03:45:19,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:19,708 INFO L93 Difference]: Finished difference Result 230 states and 264 transitions. [2020-10-26 03:45:19,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:45:19,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-10-26 03:45:19,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:19,711 INFO L225 Difference]: With dead ends: 230 [2020-10-26 03:45:19,711 INFO L226 Difference]: Without dead ends: 230 [2020-10-26 03:45:19,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:19,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-26 03:45:19,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 200. [2020-10-26 03:45:19,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-26 03:45:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 248 transitions. [2020-10-26 03:45:19,719 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 248 transitions. Word has length 23 [2020-10-26 03:45:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:19,719 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 248 transitions. [2020-10-26 03:45:19,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 03:45:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 248 transitions. [2020-10-26 03:45:19,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-26 03:45:19,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:19,721 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] [2020-10-26 03:45:19,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 03:45:19,721 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:19,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:19,722 INFO L82 PathProgramCache]: Analyzing trace with hash 955958233, now seen corresponding path program 1 times [2020-10-26 03:45:19,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:19,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786078069] [2020-10-26 03:45:19,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:19,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:19,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:19,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786078069] [2020-10-26 03:45:19,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:19,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:45:19,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089419097] [2020-10-26 03:45:19,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:45:19,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:19,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:45:19,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:45:19,788 INFO L87 Difference]: Start difference. First operand 200 states and 248 transitions. Second operand 5 states. [2020-10-26 03:45:20,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:20,228 INFO L93 Difference]: Finished difference Result 226 states and 258 transitions. [2020-10-26 03:45:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:45:20,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-26 03:45:20,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:20,231 INFO L225 Difference]: With dead ends: 226 [2020-10-26 03:45:20,231 INFO L226 Difference]: Without dead ends: 226 [2020-10-26 03:45:20,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:20,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-26 03:45:20,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2020-10-26 03:45:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-26 03:45:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2020-10-26 03:45:20,239 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 27 [2020-10-26 03:45:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:20,240 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2020-10-26 03:45:20,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:45:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2020-10-26 03:45:20,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 03:45:20,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:20,241 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] [2020-10-26 03:45:20,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 03:45:20,242 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:20,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1969073560, now seen corresponding path program 1 times [2020-10-26 03:45:20,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:20,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503396354] [2020-10-26 03:45:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:20,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:20,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503396354] [2020-10-26 03:45:20,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:20,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:45:20,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001307681] [2020-10-26 03:45:20,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 03:45:20,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:20,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 03:45:20,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 03:45:20,348 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand 7 states. [2020-10-26 03:45:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:21,144 INFO L93 Difference]: Finished difference Result 288 states and 361 transitions. [2020-10-26 03:45:21,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 03:45:21,145 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-26 03:45:21,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:21,147 INFO L225 Difference]: With dead ends: 288 [2020-10-26 03:45:21,147 INFO L226 Difference]: Without dead ends: 288 [2020-10-26 03:45:21,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:45:21,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-10-26 03:45:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 198. [2020-10-26 03:45:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-26 03:45:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 244 transitions. [2020-10-26 03:45:21,155 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 244 transitions. Word has length 26 [2020-10-26 03:45:21,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:21,155 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 244 transitions. [2020-10-26 03:45:21,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 03:45:21,156 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 244 transitions. [2020-10-26 03:45:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-26 03:45:21,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:21,157 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] [2020-10-26 03:45:21,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 03:45:21,157 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:21,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:21,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1969073561, now seen corresponding path program 1 times [2020-10-26 03:45:21,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:21,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304493777] [2020-10-26 03:45:21,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:21,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:21,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:21,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304493777] [2020-10-26 03:45:21,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:21,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:45:21,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236454494] [2020-10-26 03:45:21,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 03:45:21,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:21,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 03:45:21,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 03:45:21,258 INFO L87 Difference]: Start difference. First operand 198 states and 244 transitions. Second operand 7 states. [2020-10-26 03:45:22,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:22,104 INFO L93 Difference]: Finished difference Result 308 states and 392 transitions. [2020-10-26 03:45:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:45:22,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-10-26 03:45:22,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:22,107 INFO L225 Difference]: With dead ends: 308 [2020-10-26 03:45:22,108 INFO L226 Difference]: Without dead ends: 308 [2020-10-26 03:45:22,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:45:22,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-10-26 03:45:22,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 185. [2020-10-26 03:45:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-26 03:45:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 230 transitions. [2020-10-26 03:45:22,115 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 230 transitions. Word has length 26 [2020-10-26 03:45:22,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:22,115 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 230 transitions. [2020-10-26 03:45:22,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 03:45:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 230 transitions. [2020-10-26 03:45:22,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 03:45:22,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:22,117 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] [2020-10-26 03:45:22,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 03:45:22,117 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:22,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash 223014284, now seen corresponding path program 1 times [2020-10-26 03:45:22,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:22,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847886118] [2020-10-26 03:45:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:22,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:22,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847886118] [2020-10-26 03:45:22,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:22,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 03:45:22,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353320013] [2020-10-26 03:45:22,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 03:45:22,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:22,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 03:45:22,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-26 03:45:22,208 INFO L87 Difference]: Start difference. First operand 185 states and 230 transitions. Second operand 7 states. [2020-10-26 03:45:22,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:22,833 INFO L93 Difference]: Finished difference Result 306 states and 388 transitions. [2020-10-26 03:45:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:45:22,837 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-26 03:45:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:22,839 INFO L225 Difference]: With dead ends: 306 [2020-10-26 03:45:22,840 INFO L226 Difference]: Without dead ends: 306 [2020-10-26 03:45:22,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:45:22,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-10-26 03:45:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 183. [2020-10-26 03:45:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-26 03:45:22,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 226 transitions. [2020-10-26 03:45:22,847 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 226 transitions. Word has length 30 [2020-10-26 03:45:22,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:22,847 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 226 transitions. [2020-10-26 03:45:22,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 03:45:22,848 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 226 transitions. [2020-10-26 03:45:22,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-26 03:45:22,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:22,849 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, 1, 1, 1] [2020-10-26 03:45:22,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 03:45:22,849 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:22,850 INFO L82 PathProgramCache]: Analyzing trace with hash 132203639, now seen corresponding path program 1 times [2020-10-26 03:45:22,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:22,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761245994] [2020-10-26 03:45:22,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:22,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:22,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:22,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761245994] [2020-10-26 03:45:22,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:22,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:22,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570743935] [2020-10-26 03:45:22,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:22,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:22,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:22,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:22,907 INFO L87 Difference]: Start difference. First operand 183 states and 226 transitions. Second operand 4 states. [2020-10-26 03:45:23,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:23,168 INFO L93 Difference]: Finished difference Result 253 states and 314 transitions. [2020-10-26 03:45:23,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:23,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-26 03:45:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:23,171 INFO L225 Difference]: With dead ends: 253 [2020-10-26 03:45:23,171 INFO L226 Difference]: Without dead ends: 253 [2020-10-26 03:45:23,171 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 [2020-10-26 03:45:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-10-26 03:45:23,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 189. [2020-10-26 03:45:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-26 03:45:23,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 234 transitions. [2020-10-26 03:45:23,178 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 234 transitions. Word has length 33 [2020-10-26 03:45:23,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:23,179 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 234 transitions. [2020-10-26 03:45:23,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:23,179 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 234 transitions. [2020-10-26 03:45:23,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-26 03:45:23,180 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:23,180 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, 1, 1, 1, 1] [2020-10-26 03:45:23,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 03:45:23,181 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:23,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:23,181 INFO L82 PathProgramCache]: Analyzing trace with hash -221027395, now seen corresponding path program 1 times [2020-10-26 03:45:23,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:23,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196523604] [2020-10-26 03:45:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:23,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:23,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196523604] [2020-10-26 03:45:23,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:23,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:23,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503972423] [2020-10-26 03:45:23,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:23,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:23,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:23,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:23,245 INFO L87 Difference]: Start difference. First operand 189 states and 234 transitions. Second operand 4 states. [2020-10-26 03:45:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:23,514 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2020-10-26 03:45:23,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:23,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-26 03:45:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:23,516 INFO L225 Difference]: With dead ends: 188 [2020-10-26 03:45:23,517 INFO L226 Difference]: Without dead ends: 188 [2020-10-26 03:45:23,517 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 [2020-10-26 03:45:23,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-10-26 03:45:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2020-10-26 03:45:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-26 03:45:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 231 transitions. [2020-10-26 03:45:23,523 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 231 transitions. Word has length 34 [2020-10-26 03:45:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:23,523 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 231 transitions. [2020-10-26 03:45:23,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 231 transitions. [2020-10-26 03:45:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-26 03:45:23,524 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:23,524 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, 1, 1, 1] [2020-10-26 03:45:23,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 03:45:23,525 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:23,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:23,525 INFO L82 PathProgramCache]: Analyzing trace with hash 131415361, now seen corresponding path program 1 times [2020-10-26 03:45:23,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:23,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449912553] [2020-10-26 03:45:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:23,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:23,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449912553] [2020-10-26 03:45:23,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:23,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 03:45:23,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656728887] [2020-10-26 03:45:23,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 03:45:23,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:23,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 03:45:23,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:45:23,719 INFO L87 Difference]: Start difference. First operand 188 states and 231 transitions. Second operand 10 states. [2020-10-26 03:45:24,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:24,653 INFO L93 Difference]: Finished difference Result 307 states and 361 transitions. [2020-10-26 03:45:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 03:45:24,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2020-10-26 03:45:24,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:24,657 INFO L225 Difference]: With dead ends: 307 [2020-10-26 03:45:24,657 INFO L226 Difference]: Without dead ends: 307 [2020-10-26 03:45:24,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2020-10-26 03:45:24,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-10-26 03:45:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 220. [2020-10-26 03:45:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-26 03:45:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2020-10-26 03:45:24,665 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 33 [2020-10-26 03:45:24,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:24,665 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2020-10-26 03:45:24,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 03:45:24,665 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2020-10-26 03:45:24,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 03:45:24,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:24,666 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:24,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 03:45:24,667 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:24,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1797290604, now seen corresponding path program 1 times [2020-10-26 03:45:24,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:24,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483040384] [2020-10-26 03:45:24,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:24,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:24,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483040384] [2020-10-26 03:45:24,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086570427] [2020-10-26 03:45:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:45:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:25,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 20 conjunts are in the unsatisfiable core [2020-10-26 03:45:25,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:45:25,344 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:45:25,345 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,359 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,364 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:45:25,364 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,379 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,379 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,379 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-10-26 03:45:25,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:25,427 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:45:25,429 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,446 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:25,452 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:45:25,453 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,469 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,470 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,470 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-10-26 03:45:25,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:25,698 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 03:45:25,700 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-10-26 03:45:25,703 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,738 INFO L625 ElimStorePlain]: treesize reduction 3, result has 92.3 percent of original size [2020-10-26 03:45:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:25,743 INFO L173 IndexEqualityManager]: detected equality via solver [2020-10-26 03:45:25,747 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,748 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 13 [2020-10-26 03:45:25,750 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,767 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:25,770 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:25,770 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:7 [2020-10-26 03:45:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:25,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:45:25,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2020-10-26 03:45:25,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169694417] [2020-10-26 03:45:25,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:45:25,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:25,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:45:25,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:45:25,787 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand 11 states. [2020-10-26 03:45:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:27,962 INFO L93 Difference]: Finished difference Result 361 states and 420 transitions. [2020-10-26 03:45:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 03:45:27,963 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 35 [2020-10-26 03:45:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:27,965 INFO L225 Difference]: With dead ends: 361 [2020-10-26 03:45:27,965 INFO L226 Difference]: Without dead ends: 361 [2020-10-26 03:45:27,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2020-10-26 03:45:27,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2020-10-26 03:45:27,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 258. [2020-10-26 03:45:27,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-26 03:45:27,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 322 transitions. [2020-10-26 03:45:27,986 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 322 transitions. Word has length 35 [2020-10-26 03:45:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:27,986 INFO L481 AbstractCegarLoop]: Abstraction has 258 states and 322 transitions. [2020-10-26 03:45:27,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:45:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 322 transitions. [2020-10-26 03:45:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 03:45:27,987 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:27,987 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, 1, 1, 1, 1, 1] [2020-10-26 03:45:28,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:45:28,203 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:28,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:28,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1209956345, now seen corresponding path program 1 times [2020-10-26 03:45:28,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:28,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236662966] [2020-10-26 03:45:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:28,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:28,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236662966] [2020-10-26 03:45:28,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:28,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:45:28,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95583991] [2020-10-26 03:45:28,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:45:28,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:28,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:45:28,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:28,283 INFO L87 Difference]: Start difference. First operand 258 states and 322 transitions. Second operand 6 states. [2020-10-26 03:45:29,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:29,036 INFO L93 Difference]: Finished difference Result 373 states and 468 transitions. [2020-10-26 03:45:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:45:29,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-26 03:45:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:29,040 INFO L225 Difference]: With dead ends: 373 [2020-10-26 03:45:29,040 INFO L226 Difference]: Without dead ends: 373 [2020-10-26 03:45:29,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:29,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-10-26 03:45:29,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 257. [2020-10-26 03:45:29,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-26 03:45:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 321 transitions. [2020-10-26 03:45:29,055 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 321 transitions. Word has length 35 [2020-10-26 03:45:29,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:29,055 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 321 transitions. [2020-10-26 03:45:29,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:45:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 321 transitions. [2020-10-26 03:45:29,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 03:45:29,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:29,058 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, 1, 1, 1, 1, 1] [2020-10-26 03:45:29,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-26 03:45:29,058 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:29,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:29,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1209956346, now seen corresponding path program 1 times [2020-10-26 03:45:29,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:29,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230319586] [2020-10-26 03:45:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:29,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:29,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:29,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230319586] [2020-10-26 03:45:29,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:29,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:45:29,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131327695] [2020-10-26 03:45:29,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:45:29,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:29,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:45:29,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:45:29,195 INFO L87 Difference]: Start difference. First operand 257 states and 321 transitions. Second operand 6 states. [2020-10-26 03:45:29,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:29,958 INFO L93 Difference]: Finished difference Result 400 states and 506 transitions. [2020-10-26 03:45:29,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:45:29,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-26 03:45:29,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:29,962 INFO L225 Difference]: With dead ends: 400 [2020-10-26 03:45:29,962 INFO L226 Difference]: Without dead ends: 400 [2020-10-26 03:45:29,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-10-26 03:45:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 256. [2020-10-26 03:45:29,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-26 03:45:29,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 320 transitions. [2020-10-26 03:45:29,971 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 320 transitions. Word has length 35 [2020-10-26 03:45:29,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:29,972 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 320 transitions. [2020-10-26 03:45:29,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:45:29,972 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 320 transitions. [2020-10-26 03:45:29,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-26 03:45:29,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:29,973 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:29,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-26 03:45:29,974 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:29,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:29,974 INFO L82 PathProgramCache]: Analyzing trace with hash 241182837, now seen corresponding path program 1 times [2020-10-26 03:45:29,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:29,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194891560] [2020-10-26 03:45:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:30,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:30,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194891560] [2020-10-26 03:45:30,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:30,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 03:45:30,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880226810] [2020-10-26 03:45:30,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:45:30,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:45:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:45:30,227 INFO L87 Difference]: Start difference. First operand 256 states and 320 transitions. Second operand 12 states. [2020-10-26 03:45:31,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:31,804 INFO L93 Difference]: Finished difference Result 502 states and 597 transitions. [2020-10-26 03:45:31,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-26 03:45:31,805 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2020-10-26 03:45:31,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:31,809 INFO L225 Difference]: With dead ends: 502 [2020-10-26 03:45:31,809 INFO L226 Difference]: Without dead ends: 502 [2020-10-26 03:45:31,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2020-10-26 03:45:31,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-10-26 03:45:31,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 257. [2020-10-26 03:45:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-10-26 03:45:31,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 318 transitions. [2020-10-26 03:45:31,820 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 318 transitions. Word has length 37 [2020-10-26 03:45:31,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:31,820 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 318 transitions. [2020-10-26 03:45:31,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:45:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 318 transitions. [2020-10-26 03:45:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-26 03:45:31,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:31,822 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:31,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-26 03:45:31,822 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:31,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 241182838, now seen corresponding path program 1 times [2020-10-26 03:45:31,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821828261] [2020-10-26 03:45:31,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:32,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:32,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821828261] [2020-10-26 03:45:32,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:32,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-26 03:45:32,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305385552] [2020-10-26 03:45:32,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 03:45:32,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:32,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 03:45:32,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:45:32,130 INFO L87 Difference]: Start difference. First operand 257 states and 318 transitions. Second operand 13 states. [2020-10-26 03:45:34,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:34,219 INFO L93 Difference]: Finished difference Result 566 states and 663 transitions. [2020-10-26 03:45:34,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 03:45:34,220 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-26 03:45:34,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:34,224 INFO L225 Difference]: With dead ends: 566 [2020-10-26 03:45:34,224 INFO L226 Difference]: Without dead ends: 566 [2020-10-26 03:45:34,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-10-26 03:45:34,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-10-26 03:45:34,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 263. [2020-10-26 03:45:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-26 03:45:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 325 transitions. [2020-10-26 03:45:34,239 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 325 transitions. Word has length 37 [2020-10-26 03:45:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:34,239 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 325 transitions. [2020-10-26 03:45:34,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 03:45:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 325 transitions. [2020-10-26 03:45:34,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 03:45:34,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:34,240 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:34,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-26 03:45:34,241 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:34,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:34,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1850907343, now seen corresponding path program 1 times [2020-10-26 03:45:34,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:34,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635833694] [2020-10-26 03:45:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:34,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:34,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635833694] [2020-10-26 03:45:34,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:34,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:34,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348652686] [2020-10-26 03:45:34,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:45:34,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:34,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:45:34,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:34,368 INFO L87 Difference]: Start difference. First operand 263 states and 325 transitions. Second operand 9 states. [2020-10-26 03:45:35,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:35,147 INFO L93 Difference]: Finished difference Result 277 states and 342 transitions. [2020-10-26 03:45:35,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:45:35,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-26 03:45:35,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:35,150 INFO L225 Difference]: With dead ends: 277 [2020-10-26 03:45:35,150 INFO L226 Difference]: Without dead ends: 277 [2020-10-26 03:45:35,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-26 03:45:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 262. [2020-10-26 03:45:35,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-10-26 03:45:35,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 324 transitions. [2020-10-26 03:45:35,158 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 324 transitions. Word has length 38 [2020-10-26 03:45:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:35,158 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 324 transitions. [2020-10-26 03:45:35,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:45:35,159 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 324 transitions. [2020-10-26 03:45:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-26 03:45:35,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:35,160 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:35,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-26 03:45:35,160 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:35,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1850907342, now seen corresponding path program 1 times [2020-10-26 03:45:35,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:35,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715395762] [2020-10-26 03:45:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:35,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:35,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:35,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715395762] [2020-10-26 03:45:35,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:35,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:35,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319100562] [2020-10-26 03:45:35,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:45:35,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:35,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:45:35,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:45:35,349 INFO L87 Difference]: Start difference. First operand 262 states and 324 transitions. Second operand 9 states. [2020-10-26 03:45:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:36,207 INFO L93 Difference]: Finished difference Result 276 states and 341 transitions. [2020-10-26 03:45:36,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:45:36,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2020-10-26 03:45:36,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:36,210 INFO L225 Difference]: With dead ends: 276 [2020-10-26 03:45:36,210 INFO L226 Difference]: Without dead ends: 276 [2020-10-26 03:45:36,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-10-26 03:45:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 261. [2020-10-26 03:45:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-26 03:45:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 323 transitions. [2020-10-26 03:45:36,217 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 323 transitions. Word has length 38 [2020-10-26 03:45:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:36,218 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 323 transitions. [2020-10-26 03:45:36,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:45:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 323 transitions. [2020-10-26 03:45:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-26 03:45:36,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:36,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:36,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-26 03:45:36,220 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1871132276, now seen corresponding path program 1 times [2020-10-26 03:45:36,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:36,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435173400] [2020-10-26 03:45:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:36,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:36,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435173400] [2020-10-26 03:45:36,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:36,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:36,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374150856] [2020-10-26 03:45:36,289 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:36,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:36,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:36,290 INFO L87 Difference]: Start difference. First operand 261 states and 323 transitions. Second operand 4 states. [2020-10-26 03:45:36,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:36,574 INFO L93 Difference]: Finished difference Result 263 states and 325 transitions. [2020-10-26 03:45:36,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:36,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-26 03:45:36,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:36,577 INFO L225 Difference]: With dead ends: 263 [2020-10-26 03:45:36,577 INFO L226 Difference]: Without dead ends: 263 [2020-10-26 03:45:36,578 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 [2020-10-26 03:45:36,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-10-26 03:45:36,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2020-10-26 03:45:36,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-26 03:45:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 325 transitions. [2020-10-26 03:45:36,591 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 325 transitions. Word has length 40 [2020-10-26 03:45:36,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:36,591 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 325 transitions. [2020-10-26 03:45:36,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:36,592 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 325 transitions. [2020-10-26 03:45:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-26 03:45:36,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:36,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:36,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-26 03:45:36,593 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:36,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:36,594 INFO L82 PathProgramCache]: Analyzing trace with hash 418645810, now seen corresponding path program 1 times [2020-10-26 03:45:36,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:36,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755805819] [2020-10-26 03:45:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:37,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:37,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:37,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755805819] [2020-10-26 03:45:37,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:37,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-26 03:45:37,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36487201] [2020-10-26 03:45:37,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-26 03:45:37,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:37,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-26 03:45:37,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:37,035 INFO L87 Difference]: Start difference. First operand 263 states and 325 transitions. Second operand 14 states. [2020-10-26 03:45:39,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:39,224 INFO L93 Difference]: Finished difference Result 565 states and 661 transitions. [2020-10-26 03:45:39,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 03:45:39,225 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 41 [2020-10-26 03:45:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:39,229 INFO L225 Difference]: With dead ends: 565 [2020-10-26 03:45:39,229 INFO L226 Difference]: Without dead ends: 565 [2020-10-26 03:45:39,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2020-10-26 03:45:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-26 03:45:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 263. [2020-10-26 03:45:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-10-26 03:45:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 324 transitions. [2020-10-26 03:45:39,239 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 324 transitions. Word has length 41 [2020-10-26 03:45:39,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:39,239 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 324 transitions. [2020-10-26 03:45:39,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-26 03:45:39,240 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 324 transitions. [2020-10-26 03:45:39,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:45:39,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:39,241 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:39,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-26 03:45:39,241 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:39,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:39,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1318150528, now seen corresponding path program 1 times [2020-10-26 03:45:39,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:39,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030306044] [2020-10-26 03:45:39,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:39,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:39,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:39,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030306044] [2020-10-26 03:45:39,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:39,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:39,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007550928] [2020-10-26 03:45:39,369 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:45:39,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:39,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:45:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:39,370 INFO L87 Difference]: Start difference. First operand 263 states and 324 transitions. Second operand 8 states. [2020-10-26 03:45:39,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:39,939 INFO L93 Difference]: Finished difference Result 278 states and 339 transitions. [2020-10-26 03:45:39,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:45:39,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-26 03:45:39,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:39,942 INFO L225 Difference]: With dead ends: 278 [2020-10-26 03:45:39,942 INFO L226 Difference]: Without dead ends: 278 [2020-10-26 03:45:39,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:45:39,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-26 03:45:39,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 272. [2020-10-26 03:45:39,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-26 03:45:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 333 transitions. [2020-10-26 03:45:39,949 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 333 transitions. Word has length 42 [2020-10-26 03:45:39,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:39,949 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 333 transitions. [2020-10-26 03:45:39,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:45:39,950 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 333 transitions. [2020-10-26 03:45:39,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:45:39,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:39,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:39,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-26 03:45:39,951 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:39,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:39,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1533266383, now seen corresponding path program 1 times [2020-10-26 03:45:39,952 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:39,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295055940] [2020-10-26 03:45:39,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:40,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295055940] [2020-10-26 03:45:40,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:40,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:45:40,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236015745] [2020-10-26 03:45:40,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:45:40,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:40,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:45:40,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:40,100 INFO L87 Difference]: Start difference. First operand 272 states and 333 transitions. Second operand 8 states. [2020-10-26 03:45:40,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:40,619 INFO L93 Difference]: Finished difference Result 282 states and 343 transitions. [2020-10-26 03:45:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 03:45:40,620 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-26 03:45:40,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:40,622 INFO L225 Difference]: With dead ends: 282 [2020-10-26 03:45:40,622 INFO L226 Difference]: Without dead ends: 282 [2020-10-26 03:45:40,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-26 03:45:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-10-26 03:45:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 269. [2020-10-26 03:45:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-10-26 03:45:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 328 transitions. [2020-10-26 03:45:40,629 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 328 transitions. Word has length 42 [2020-10-26 03:45:40,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:40,630 INFO L481 AbstractCegarLoop]: Abstraction has 269 states and 328 transitions. [2020-10-26 03:45:40,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:45:40,630 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 328 transitions. [2020-10-26 03:45:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-26 03:45:40,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:40,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:40,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-26 03:45:40,632 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:40,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:40,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1255371776, now seen corresponding path program 1 times [2020-10-26 03:45:40,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:40,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591563364] [2020-10-26 03:45:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:40,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:40,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591563364] [2020-10-26 03:45:40,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:40,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:45:40,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718773627] [2020-10-26 03:45:40,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:40,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:40,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:40,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:40,699 INFO L87 Difference]: Start difference. First operand 269 states and 328 transitions. Second operand 4 states. [2020-10-26 03:45:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:41,008 INFO L93 Difference]: Finished difference Result 279 states and 332 transitions. [2020-10-26 03:45:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:41,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-26 03:45:41,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:41,010 INFO L225 Difference]: With dead ends: 279 [2020-10-26 03:45:41,010 INFO L226 Difference]: Without dead ends: 279 [2020-10-26 03:45:41,011 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 [2020-10-26 03:45:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-26 03:45:41,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 270. [2020-10-26 03:45:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-26 03:45:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 329 transitions. [2020-10-26 03:45:41,020 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 329 transitions. Word has length 42 [2020-10-26 03:45:41,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:41,020 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 329 transitions. [2020-10-26 03:45:41,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:41,021 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 329 transitions. [2020-10-26 03:45:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 03:45:41,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:41,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:41,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-26 03:45:41,025 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:41,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:41,026 INFO L82 PathProgramCache]: Analyzing trace with hash -2063486311, now seen corresponding path program 1 times [2020-10-26 03:45:41,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:41,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668899566] [2020-10-26 03:45:41,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:41,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:41,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668899566] [2020-10-26 03:45:41,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:41,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-26 03:45:41,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655451111] [2020-10-26 03:45:41,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-26 03:45:41,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:41,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-26 03:45:41,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2020-10-26 03:45:41,439 INFO L87 Difference]: Start difference. First operand 270 states and 329 transitions. Second operand 15 states. [2020-10-26 03:45:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:43,578 INFO L93 Difference]: Finished difference Result 567 states and 658 transitions. [2020-10-26 03:45:43,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-26 03:45:43,579 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 44 [2020-10-26 03:45:43,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:43,582 INFO L225 Difference]: With dead ends: 567 [2020-10-26 03:45:43,582 INFO L226 Difference]: Without dead ends: 567 [2020-10-26 03:45:43,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-10-26 03:45:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-10-26 03:45:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 270. [2020-10-26 03:45:43,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-10-26 03:45:43,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 328 transitions. [2020-10-26 03:45:43,595 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 328 transitions. Word has length 44 [2020-10-26 03:45:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:43,596 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 328 transitions. [2020-10-26 03:45:43,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-26 03:45:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 328 transitions. [2020-10-26 03:45:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-26 03:45:43,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:43,598 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:43,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-26 03:45:43,599 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:43,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:43,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1795101756, now seen corresponding path program 1 times [2020-10-26 03:45:43,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:43,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843443898] [2020-10-26 03:45:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:43,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:43,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:43,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:45:43,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843443898] [2020-10-26 03:45:43,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056713317] [2020-10-26 03:45:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:45:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:43,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-26 03:45:43,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:45:43,950 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:45:43,950 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:43,957 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:43,960 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-26 03:45:43,960 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:43,966 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:43,967 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:43,967 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2020-10-26 03:45:43,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:43,982 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:45:43,983 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:43,994 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:44,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:44,007 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-10-26 03:45:44,008 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:44,028 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:44,029 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:44,029 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:41, output treesize:33 [2020-10-26 03:45:44,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-10-26 03:45:44,077 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2020-10-26 03:45:44,078 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:44,088 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:44,093 INFO L350 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2020-10-26 03:45:44,093 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 10 [2020-10-26 03:45:44,095 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-26 03:45:44,099 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:45:44,100 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:45:44,100 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:7 [2020-10-26 03:45:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:44,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:45:44,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 11 [2020-10-26 03:45:44,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020539482] [2020-10-26 03:45:44,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:45:44,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:44,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:45:44,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:45:44,117 INFO L87 Difference]: Start difference. First operand 270 states and 328 transitions. Second operand 11 states. [2020-10-26 03:45:45,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:45,423 INFO L93 Difference]: Finished difference Result 389 states and 448 transitions. [2020-10-26 03:45:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 03:45:45,423 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-26 03:45:45,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:45,425 INFO L225 Difference]: With dead ends: 389 [2020-10-26 03:45:45,425 INFO L226 Difference]: Without dead ends: 389 [2020-10-26 03:45:45,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2020-10-26 03:45:45,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-10-26 03:45:45,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 294. [2020-10-26 03:45:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-26 03:45:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 363 transitions. [2020-10-26 03:45:45,434 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 363 transitions. Word has length 45 [2020-10-26 03:45:45,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:45,434 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 363 transitions. [2020-10-26 03:45:45,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:45:45,434 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 363 transitions. [2020-10-26 03:45:45,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-26 03:45:45,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:45,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:45,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:45:45,652 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:45,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:45,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1877413324, now seen corresponding path program 1 times [2020-10-26 03:45:45,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:45,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002075069] [2020-10-26 03:45:45,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:45,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:45,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002075069] [2020-10-26 03:45:45,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:45,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:45:45,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174445744] [2020-10-26 03:45:45,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:45:45,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:45,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:45:45,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:45:45,711 INFO L87 Difference]: Start difference. First operand 294 states and 363 transitions. Second operand 4 states. [2020-10-26 03:45:46,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:46,008 INFO L93 Difference]: Finished difference Result 296 states and 362 transitions. [2020-10-26 03:45:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:45:46,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2020-10-26 03:45:46,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:46,010 INFO L225 Difference]: With dead ends: 296 [2020-10-26 03:45:46,010 INFO L226 Difference]: Without dead ends: 296 [2020-10-26 03:45:46,011 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 [2020-10-26 03:45:46,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-10-26 03:45:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2020-10-26 03:45:46,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-10-26 03:45:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 359 transitions. [2020-10-26 03:45:46,017 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 359 transitions. Word has length 46 [2020-10-26 03:45:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:46,017 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 359 transitions. [2020-10-26 03:45:46,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:45:46,018 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 359 transitions. [2020-10-26 03:45:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-26 03:45:46,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:46,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:46,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-26 03:45:46,019 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:46,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:46,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1168941722, now seen corresponding path program 1 times [2020-10-26 03:45:46,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:46,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407197295] [2020-10-26 03:45:46,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:46,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:46,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407197295] [2020-10-26 03:45:46,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:46,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 03:45:46,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137393526] [2020-10-26 03:45:46,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:45:46,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:46,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:45:46,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:45:46,204 INFO L87 Difference]: Start difference. First operand 293 states and 359 transitions. Second operand 11 states. [2020-10-26 03:45:47,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:47,377 INFO L93 Difference]: Finished difference Result 520 states and 622 transitions. [2020-10-26 03:45:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 03:45:47,383 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-26 03:45:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:47,386 INFO L225 Difference]: With dead ends: 520 [2020-10-26 03:45:47,386 INFO L226 Difference]: Without dead ends: 520 [2020-10-26 03:45:47,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-26 03:45:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2020-10-26 03:45:47,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 300. [2020-10-26 03:45:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-26 03:45:47,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 368 transitions. [2020-10-26 03:45:47,396 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 368 transitions. Word has length 45 [2020-10-26 03:45:47,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:47,396 INFO L481 AbstractCegarLoop]: Abstraction has 300 states and 368 transitions. [2020-10-26 03:45:47,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:45:47,397 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 368 transitions. [2020-10-26 03:45:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-26 03:45:47,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:47,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:47,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-26 03:45:47,398 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:47,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:47,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1168941723, now seen corresponding path program 1 times [2020-10-26 03:45:47,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:47,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929033313] [2020-10-26 03:45:47,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:47,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:47,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929033313] [2020-10-26 03:45:47,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:45:47,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 03:45:47,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878649918] [2020-10-26 03:45:47,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:45:47,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:47,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:45:47,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:45:47,647 INFO L87 Difference]: Start difference. First operand 300 states and 368 transitions. Second operand 11 states. [2020-10-26 03:45:49,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:49,112 INFO L93 Difference]: Finished difference Result 523 states and 626 transitions. [2020-10-26 03:45:49,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 03:45:49,113 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2020-10-26 03:45:49,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:49,116 INFO L225 Difference]: With dead ends: 523 [2020-10-26 03:45:49,116 INFO L226 Difference]: Without dead ends: 523 [2020-10-26 03:45:49,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-10-26 03:45:49,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-10-26 03:45:49,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 306. [2020-10-26 03:45:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-10-26 03:45:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 375 transitions. [2020-10-26 03:45:49,124 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 375 transitions. Word has length 45 [2020-10-26 03:45:49,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:49,125 INFO L481 AbstractCegarLoop]: Abstraction has 306 states and 375 transitions. [2020-10-26 03:45:49,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:45:49,125 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 375 transitions. [2020-10-26 03:45:49,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-26 03:45:49,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:49,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:49,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-26 03:45:49,127 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:49,127 INFO L82 PathProgramCache]: Analyzing trace with hash -186419219, now seen corresponding path program 1 times [2020-10-26 03:45:49,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:49,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430714164] [2020-10-26 03:45:49,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:49,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:49,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:45:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430714164] [2020-10-26 03:45:49,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835254513] [2020-10-26 03:45:49,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-26 03:45:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:45:49,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-26 03:45:49,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:45:49,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 03:45:49,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:45:49,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 7 [2020-10-26 03:45:49,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953290896] [2020-10-26 03:45:49,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 03:45:49,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:45:49,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 03:45:49,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:49,455 INFO L87 Difference]: Start difference. First operand 306 states and 375 transitions. Second operand 8 states. [2020-10-26 03:45:49,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:45:49,714 INFO L93 Difference]: Finished difference Result 337 states and 406 transitions. [2020-10-26 03:45:49,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:45:49,715 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-10-26 03:45:49,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:45:49,717 INFO L225 Difference]: With dead ends: 337 [2020-10-26 03:45:49,717 INFO L226 Difference]: Without dead ends: 313 [2020-10-26 03:45:49,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:45:49,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-10-26 03:45:49,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2020-10-26 03:45:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-26 03:45:49,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 382 transitions. [2020-10-26 03:45:49,730 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 382 transitions. Word has length 46 [2020-10-26 03:45:49,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:45:49,730 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 382 transitions. [2020-10-26 03:45:49,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 03:45:49,730 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 382 transitions. [2020-10-26 03:45:49,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-26 03:45:49,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:45:49,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:45:49,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2020-10-26 03:45:49,946 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr66ENSURES_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr65ASSERT_VIOLATIONMEMORY_FREE, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr61REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr64ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr62REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-10-26 03:45:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:45:49,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1237981495, now seen corresponding path program 1 times [2020-10-26 03:45:49,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:45:49,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438788907] [2020-10-26 03:45:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:45:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:45:49,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:45:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:45:49,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:45:50,036 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:45:50,036 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:45:50,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-26 03:45:50,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:45:50 BoogieIcfgContainer [2020-10-26 03:45:50,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:45:50,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:45:50,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:45:50,108 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:45:50,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:45:08" (3/4) ... [2020-10-26 03:45:50,111 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:45:50,163 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:45:50,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:45:50,164 INFO L168 Benchmark]: Toolchain (without parser) took 43451.44 ms. Allocated memory was 50.3 MB in the beginning and 161.5 MB in the end (delta: 111.1 MB). Free memory was 25.7 MB in the beginning and 113.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,165 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:45:50,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.30 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.1 MB in the beginning and 36.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,166 INFO L168 Benchmark]: Boogie Preprocessor took 105.88 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 33.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,166 INFO L168 Benchmark]: RCFGBuilder took 1082.11 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 33.2 MB in the beginning and 48.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,167 INFO L168 Benchmark]: TraceAbstraction took 41546.96 ms. Allocated memory was 75.5 MB in the beginning and 161.5 MB in the end (delta: 86.0 MB). Free memory was 47.8 MB in the beginning and 116.8 MB in the end (delta: -69.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,167 INFO L168 Benchmark]: Witness Printer took 55.78 ms. Allocated memory is still 161.5 MB. Free memory was 116.8 MB in the beginning and 113.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:45:50,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 31.9 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 642.30 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 25.1 MB in the beginning and 36.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.88 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 33.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1082.11 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 33.2 MB in the beginning and 48.2 MB in the end (delta: -15.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 41546.96 ms. Allocated memory was 75.5 MB in the beginning and 161.5 MB in the end (delta: 86.0 MB). Free memory was 47.8 MB in the beginning and 116.8 MB in the end (delta: -69.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Witness Printer took 55.78 ms. Allocated memory is still 161.5 MB. Free memory was 116.8 MB in the beginning and 113.7 MB in the end (delta: 3.1 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: 1040]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1002] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] COND FALSE !(!(list != ((void*)0))) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1004] list->inner = malloc(sizeof(SLL)) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] list->inner->next = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] list->inner->inner = ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] EXPR list->inner VAL [list={-1:0}, list->inner={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) VAL [list={-1:0}, list->inner={-2:0}, list->inner != ((void*)0) || list->inner == ((void*)0)=1, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1004] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1006] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1009] COND FALSE !(__VERIFIER_nondet_int()) [L1019] end = ((void*)0) [L1020] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1023] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1025] COND TRUE ((void*)0) != end [L1027] int len = 0; VAL [end={-1:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1028] EXPR end->inner VAL [end={-1:0}, end->inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1028] SLL* inner = end->inner; [L1029] COND TRUE ((void*)0) != inner VAL [end={-1:0}, inner={-2:0}, len=0, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1031] COND TRUE len == 0 [L1032] len = 1 VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1035] COND FALSE !(!(((void*)0) != inner)) VAL [end={-1:0}, inner={-2:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1036] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1036] COND FALSE !(!(((void*)0) == inner->inner)) [L1037] EXPR inner->next VAL [end={-1:0}, inner={-2:0}, inner->next={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1037] COND FALSE !(!(((void*)0) == inner->next)) [L1038] EXPR inner->inner VAL [end={-1:0}, inner={-2:0}, inner->inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1038] inner = inner->inner [L1039] COND TRUE len == 1 VAL [end={-1:0}, inner={0:0}, len=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}] [L1040] inner->inner - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 202 locations, 68 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.4s, OverallIterations: 38, TraceHistogramMax: 2, AutomataDifference: 32.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5913 SDtfs, 9534 SDslu, 16377 SDs, 0 SdLazy, 20148 SolverSat, 1046 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 586 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 362 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 37 MinimizatonAttempts, 3428 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1308 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1222 ConstructedInterpolants, 12 QuantifiedInterpolants, 417928 SizeOfPredicates, 19 NumberOfNonLiveVariables, 595 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 40 InterpolantComputations, 34 PerfectInterpolantSequences, 12/19 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...