./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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-simple-white-blue-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c783d9214012f4bff6327cd9f7b291047ddaff08 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:18:57,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:18:57,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:18:57,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:18:57,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:18:57,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:18:57,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:18:57,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:18:57,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:18:57,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:18:57,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:18:57,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:18:57,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:18:57,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:18:57,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:18:57,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:18:57,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:18:57,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:18:57,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:18:57,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:18:57,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:18:57,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:18:57,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:18:57,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:18:57,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:18:57,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:18:57,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:18:57,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:18:57,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:18:57,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:18:57,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:18:57,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:18:57,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:18:57,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:18:57,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:18:57,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:18:57,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:18:57,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:18:57,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:18:57,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:18:57,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:18:57,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-20 06:18:57,368 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:18:57,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:18:57,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:18:57,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:18:57,371 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:18:57,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:18:57,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:18:57,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:18:57,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:18:57,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:18:57,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:18:57,374 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:18:57,374 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:18:57,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:18:57,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:18:57,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:18:57,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:18:57,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:18:57,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:18:57,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:18:57,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:18:57,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:18:57,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:18:57,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:18:57,377 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:18:57,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:18:57,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:18:57,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c783d9214012f4bff6327cd9f7b291047ddaff08 [2020-10-20 06:18:57,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:18:57,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:18:57,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:18:57,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:18:57,658 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:18:57,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-10-20 06:18:57,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d11f429/03e66d12c483415b8a059e1c44d34d82/FLAG22a70c654 [2020-10-20 06:18:58,237 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:18:58,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2020-10-20 06:18:58,251 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d11f429/03e66d12c483415b8a059e1c44d34d82/FLAG22a70c654 [2020-10-20 06:18:58,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88d11f429/03e66d12c483415b8a059e1c44d34d82 [2020-10-20 06:18:58,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:18:58,512 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:18:58,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:58,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:18:58,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:18:58,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:58" (1/1) ... [2020-10-20 06:18:58,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6cdde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:58, skipping insertion in model container [2020-10-20 06:18:58,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:18:58" (1/1) ... [2020-10-20 06:18:58,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:18:58,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:18:59,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:59,036 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:18:59,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:18:59,186 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:18:59,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59 WrapperNode [2020-10-20 06:18:59,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:18:59,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:18:59,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:18:59,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:18:59,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (1/1) ... [2020-10-20 06:18:59,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:18:59,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:18:59,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:18:59,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:18:59,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (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 [2020-10-20 06:18:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:18:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:18:59,339 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:18:59,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:18:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 06:18:59,340 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 06:18:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 06:18:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 06:18:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 06:18:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 06:18:59,341 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 06:18:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 06:18:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 06:18:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 06:18:59,342 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 06:18:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 06:18:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 06:18:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 06:18:59,343 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 06:18:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 06:18:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 06:18:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 06:18:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 06:18:59,344 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 06:18:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 06:18:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 06:18:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 06:18:59,345 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 06:18:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 06:18:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 06:18:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 06:18:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 06:18:59,346 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 06:18:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 06:18:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 06:18:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 06:18:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 06:18:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 06:18:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 06:18:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 06:18:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 06:18:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 06:18:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 06:18:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 06:18:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 06:18:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 06:18:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 06:18:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 06:18:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 06:18:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 06:18:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 06:18:59,350 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 06:18:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 06:18:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 06:18:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 06:18:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 06:18:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 06:18:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 06:18:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-20 06:18:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 06:18:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 06:18:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 06:18:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 06:18:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:18:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 06:18:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 06:18:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 06:18:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 06:18:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 06:18:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 06:18:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 06:18:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 06:18:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 06:18:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 06:18:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 06:18:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 06:18:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 06:18:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 06:18:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 06:18:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 06:18:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 06:18:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 06:18:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 06:18:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 06:18:59,357 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 06:18:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 06:18:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 06:18:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 06:18:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 06:18:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 06:18:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 06:18:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 06:18:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 06:18:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 06:18:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 06:18:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 06:18:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 06:18:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 06:18:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 06:18:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 06:18:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 06:18:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 06:18:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 06:18:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 06:18:59,361 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 06:18:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 06:18:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 06:18:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:18:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:18:59,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 06:18:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 06:18:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:18:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:18:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:18:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 06:18:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 06:18:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:18:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 06:18:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:18:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:18:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:18:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:18:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:19:00,022 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:19:00,023 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 06:19:00,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:19:00 BoogieIcfgContainer [2020-10-20 06:19:00,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:19:00,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:19:00,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:19:00,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:19:00,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:18:58" (1/3) ... [2020-10-20 06:19:00,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f2cb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:19:00, skipping insertion in model container [2020-10-20 06:19:00,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:18:59" (2/3) ... [2020-10-20 06:19:00,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f2cb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:19:00, skipping insertion in model container [2020-10-20 06:19:00,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:19:00" (3/3) ... [2020-10-20 06:19:00,035 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-simple-white-blue-2.i [2020-10-20 06:19:00,048 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:19:00,057 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 49 error locations. [2020-10-20 06:19:00,073 INFO L253 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2020-10-20 06:19:00,099 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:19:00,100 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:19:00,100 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:19:00,103 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:19:00,105 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:19:00,106 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:19:00,106 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:19:00,106 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:19:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-10-20 06:19:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:19:00,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:00,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:00,155 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:00,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:00,163 INFO L82 PathProgramCache]: Analyzing trace with hash 15534572, now seen corresponding path program 1 times [2020-10-20 06:19:00,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:00,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892796412] [2020-10-20 06:19:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:00,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:00,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892796412] [2020-10-20 06:19:00,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:00,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:19:00,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292680392] [2020-10-20 06:19:00,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:19:00,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:19:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:19:00,503 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 4 states. [2020-10-20 06:19:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:00,902 INFO L93 Difference]: Finished difference Result 138 states and 148 transitions. [2020-10-20 06:19:00,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:19:00,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:19:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:00,917 INFO L225 Difference]: With dead ends: 138 [2020-10-20 06:19:00,917 INFO L226 Difference]: Without dead ends: 134 [2020-10-20 06:19:00,919 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 [2020-10-20 06:19:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-20 06:19:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 106. [2020-10-20 06:19:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-20 06:19:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 112 transitions. [2020-10-20 06:19:00,969 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 112 transitions. Word has length 7 [2020-10-20 06:19:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:00,970 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 112 transitions. [2020-10-20 06:19:00,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:19:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 112 transitions. [2020-10-20 06:19:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:19:00,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:00,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:00,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:19:00,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:00,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:00,973 INFO L82 PathProgramCache]: Analyzing trace with hash 15534573, now seen corresponding path program 1 times [2020-10-20 06:19:00,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:00,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595905721] [2020-10-20 06:19:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:01,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595905721] [2020-10-20 06:19:01,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:01,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:19:01,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778993686] [2020-10-20 06:19:01,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:19:01,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:01,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:19:01,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:19:01,121 INFO L87 Difference]: Start difference. First operand 106 states and 112 transitions. Second operand 4 states. [2020-10-20 06:19:01,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:01,473 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2020-10-20 06:19:01,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:19:01,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 06:19:01,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:01,475 INFO L225 Difference]: With dead ends: 132 [2020-10-20 06:19:01,476 INFO L226 Difference]: Without dead ends: 132 [2020-10-20 06:19:01,477 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 [2020-10-20 06:19:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-20 06:19:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 104. [2020-10-20 06:19:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-20 06:19:01,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2020-10-20 06:19:01,487 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 7 [2020-10-20 06:19:01,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:01,488 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2020-10-20 06:19:01,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:19:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2020-10-20 06:19:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:19:01,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:01,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:01,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:19:01,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:01,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:01,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2024757771, now seen corresponding path program 1 times [2020-10-20 06:19:01,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:01,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878250045] [2020-10-20 06:19:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:01,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878250045] [2020-10-20 06:19:01,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:01,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:19:01,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24957525] [2020-10-20 06:19:01,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:19:01,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:01,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:19:01,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:19:01,586 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand 5 states. [2020-10-20 06:19:01,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:01,842 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2020-10-20 06:19:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:19:01,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-20 06:19:01,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:01,844 INFO L225 Difference]: With dead ends: 107 [2020-10-20 06:19:01,844 INFO L226 Difference]: Without dead ends: 107 [2020-10-20 06:19:01,845 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 [2020-10-20 06:19:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-20 06:19:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 99. [2020-10-20 06:19:01,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-20 06:19:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2020-10-20 06:19:01,855 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 12 [2020-10-20 06:19:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:01,856 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2020-10-20 06:19:01,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:19:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2020-10-20 06:19:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:19:01,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:01,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:01,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:19:01,858 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:01,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:01,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2024757772, now seen corresponding path program 1 times [2020-10-20 06:19:01,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:01,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566405141] [2020-10-20 06:19:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:01,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566405141] [2020-10-20 06:19:01,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:01,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:19:01,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159211515] [2020-10-20 06:19:01,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:19:01,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:01,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:19:01,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:19:01,980 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 5 states. [2020-10-20 06:19:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:02,270 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2020-10-20 06:19:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:19:02,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-20 06:19:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:02,272 INFO L225 Difference]: With dead ends: 135 [2020-10-20 06:19:02,272 INFO L226 Difference]: Without dead ends: 135 [2020-10-20 06:19:02,273 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 [2020-10-20 06:19:02,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-20 06:19:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 114. [2020-10-20 06:19:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 06:19:02,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2020-10-20 06:19:02,282 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 12 [2020-10-20 06:19:02,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:02,282 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2020-10-20 06:19:02,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:19:02,283 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2020-10-20 06:19:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:19:02,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:02,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:02,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:19:02,284 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:02,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:02,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1038052920, now seen corresponding path program 1 times [2020-10-20 06:19:02,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:02,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842438166] [2020-10-20 06:19:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:02,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:02,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:02,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842438166] [2020-10-20 06:19:02,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:02,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:19:02,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136965700] [2020-10-20 06:19:02,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:19:02,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:02,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:19:02,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:19:02,369 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 7 states. [2020-10-20 06:19:02,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:02,990 INFO L93 Difference]: Finished difference Result 189 states and 214 transitions. [2020-10-20 06:19:02,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:19:02,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-20 06:19:02,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:02,992 INFO L225 Difference]: With dead ends: 189 [2020-10-20 06:19:02,992 INFO L226 Difference]: Without dead ends: 189 [2020-10-20 06:19:02,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:19:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-20 06:19:03,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 113. [2020-10-20 06:19:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 06:19:03,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-20 06:19:03,003 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 15 [2020-10-20 06:19:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:03,004 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-20 06:19:03,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:19:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-20 06:19:03,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 06:19:03,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:03,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:03,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:19:03,006 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:03,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1038052921, now seen corresponding path program 1 times [2020-10-20 06:19:03,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:03,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331572165] [2020-10-20 06:19:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:03,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:03,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:03,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331572165] [2020-10-20 06:19:03,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:03,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:19:03,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422782139] [2020-10-20 06:19:03,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:19:03,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:03,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:19:03,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:19:03,098 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 7 states. [2020-10-20 06:19:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:03,692 INFO L93 Difference]: Finished difference Result 198 states and 225 transitions. [2020-10-20 06:19:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:19:03,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-10-20 06:19:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:03,695 INFO L225 Difference]: With dead ends: 198 [2020-10-20 06:19:03,695 INFO L226 Difference]: Without dead ends: 198 [2020-10-20 06:19:03,695 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 [2020-10-20 06:19:03,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-20 06:19:03,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 105. [2020-10-20 06:19:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-10-20 06:19:03,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2020-10-20 06:19:03,705 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 15 [2020-10-20 06:19:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:03,706 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2020-10-20 06:19:03,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:19:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2020-10-20 06:19:03,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 06:19:03,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:03,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:03,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:19:03,708 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:03,709 INFO L82 PathProgramCache]: Analyzing trace with hash -141829353, now seen corresponding path program 1 times [2020-10-20 06:19:03,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:03,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092362371] [2020-10-20 06:19:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:03,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:03,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:03,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092362371] [2020-10-20 06:19:03,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:03,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 06:19:03,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21244762] [2020-10-20 06:19:03,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:19:03,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:03,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:19:03,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:19:03,803 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand 6 states. [2020-10-20 06:19:04,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:04,051 INFO L93 Difference]: Finished difference Result 116 states and 131 transitions. [2020-10-20 06:19:04,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:19:04,052 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-10-20 06:19:04,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:04,053 INFO L225 Difference]: With dead ends: 116 [2020-10-20 06:19:04,053 INFO L226 Difference]: Without dead ends: 116 [2020-10-20 06:19:04,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:19:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-20 06:19:04,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 111. [2020-10-20 06:19:04,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-20 06:19:04,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2020-10-20 06:19:04,061 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 19 [2020-10-20 06:19:04,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:04,062 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2020-10-20 06:19:04,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:19:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2020-10-20 06:19:04,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:19:04,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:04,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:04,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 06:19:04,064 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:04,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:04,064 INFO L82 PathProgramCache]: Analyzing trace with hash -151306315, now seen corresponding path program 1 times [2020-10-20 06:19:04,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:04,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899832970] [2020-10-20 06:19:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:04,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899832970] [2020-10-20 06:19:04,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:04,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:19:04,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109828954] [2020-10-20 06:19:04,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:19:04,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:04,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:19:04,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:19:04,134 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 6 states. [2020-10-20 06:19:04,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:04,407 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2020-10-20 06:19:04,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:19:04,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-20 06:19:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:04,409 INFO L225 Difference]: With dead ends: 145 [2020-10-20 06:19:04,409 INFO L226 Difference]: Without dead ends: 145 [2020-10-20 06:19:04,409 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 [2020-10-20 06:19:04,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-20 06:19:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 110. [2020-10-20 06:19:04,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-20 06:19:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 124 transitions. [2020-10-20 06:19:04,424 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 124 transitions. Word has length 20 [2020-10-20 06:19:04,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:04,425 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 124 transitions. [2020-10-20 06:19:04,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:19:04,425 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 124 transitions. [2020-10-20 06:19:04,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:19:04,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:04,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:19:04,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 06:19:04,429 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:04,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:04,429 INFO L82 PathProgramCache]: Analyzing trace with hash -151306314, now seen corresponding path program 1 times [2020-10-20 06:19:04,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:04,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132877751] [2020-10-20 06:19:04,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:04,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132877751] [2020-10-20 06:19:04,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:04,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:19:04,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975387631] [2020-10-20 06:19:04,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:19:04,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:04,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:19:04,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:19:04,536 INFO L87 Difference]: Start difference. First operand 110 states and 124 transitions. Second operand 6 states. [2020-10-20 06:19:04,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:04,874 INFO L93 Difference]: Finished difference Result 154 states and 173 transitions. [2020-10-20 06:19:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 06:19:04,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-20 06:19:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:04,876 INFO L225 Difference]: With dead ends: 154 [2020-10-20 06:19:04,876 INFO L226 Difference]: Without dead ends: 154 [2020-10-20 06:19:04,877 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 [2020-10-20 06:19:04,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-20 06:19:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 109. [2020-10-20 06:19:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 06:19:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2020-10-20 06:19:04,886 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 20 [2020-10-20 06:19:04,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:04,887 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2020-10-20 06:19:04,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:19:04,887 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2020-10-20 06:19:04,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 06:19:04,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:04,889 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] [2020-10-20 06:19:04,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 06:19:04,889 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:04,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:04,890 INFO L82 PathProgramCache]: Analyzing trace with hash 2120124380, now seen corresponding path program 1 times [2020-10-20 06:19:04,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:04,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066147610] [2020-10-20 06:19:04,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:04,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:04,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066147610] [2020-10-20 06:19:04,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001084593] [2020-10-20 06:19:04,984 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 [2020-10-20 06:19:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:05,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 13 conjunts are in the unsatisfiable core [2020-10-20 06:19:05,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:19:05,208 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 13 treesize of output 9 [2020-10-20 06:19:05,209 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,214 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:19:05,215 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,215 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-20 06:19:05,256 INFO L350 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2020-10-20 06:19:05,257 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2020-10-20 06:19:05,259 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,263 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:19:05,264 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,264 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:25, output treesize:9 [2020-10-20 06:19:05,288 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2020-10-20 06:19:05,289 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,291 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 06:19:05,292 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-20 06:19:05,292 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-10-20 06:19:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:05,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 06:19:05,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2020-10-20 06:19:05,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546799592] [2020-10-20 06:19:05,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:19:05,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:05,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:19:05,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-20 06:19:05,308 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 5 states. [2020-10-20 06:19:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:05,466 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2020-10-20 06:19:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 06:19:05,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-20 06:19:05,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:05,468 INFO L225 Difference]: With dead ends: 138 [2020-10-20 06:19:05,468 INFO L226 Difference]: Without dead ends: 138 [2020-10-20 06:19:05,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:19:05,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-10-20 06:19:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 112. [2020-10-20 06:19:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-20 06:19:05,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2020-10-20 06:19:05,474 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 22 [2020-10-20 06:19:05,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:05,475 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2020-10-20 06:19:05,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:19:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2020-10-20 06:19:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:19:05,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:05,477 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] [2020-10-20 06:19:05,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-20 06:19:05,678 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:05,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:05,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1297715506, now seen corresponding path program 1 times [2020-10-20 06:19:05,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:05,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985102929] [2020-10-20 06:19:05,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:05,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:05,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985102929] [2020-10-20 06:19:05,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:05,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-20 06:19:05,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590554727] [2020-10-20 06:19:05,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-20 06:19:05,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:05,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-20 06:19:05,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:19:05,805 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand 9 states. [2020-10-20 06:19:06,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:06,175 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2020-10-20 06:19:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:19:06,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-10-20 06:19:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:06,177 INFO L225 Difference]: With dead ends: 140 [2020-10-20 06:19:06,177 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 06:19:06,177 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-20 06:19:06,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 06:19:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 113. [2020-10-20 06:19:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 06:19:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-20 06:19:06,182 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 23 [2020-10-20 06:19:06,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:06,183 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-20 06:19:06,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-20 06:19:06,183 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-20 06:19:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:19:06,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:06,184 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] [2020-10-20 06:19:06,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-20 06:19:06,185 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:06,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:06,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1297715507, now seen corresponding path program 1 times [2020-10-20 06:19:06,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:06,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490104617] [2020-10-20 06:19:06,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:06,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:06,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490104617] [2020-10-20 06:19:06,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:06,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 06:19:06,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767723699] [2020-10-20 06:19:06,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:19:06,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:06,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:19:06,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:19:06,364 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 8 states. [2020-10-20 06:19:06,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:06,920 INFO L93 Difference]: Finished difference Result 163 states and 178 transitions. [2020-10-20 06:19:06,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-20 06:19:06,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-10-20 06:19:06,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:06,922 INFO L225 Difference]: With dead ends: 163 [2020-10-20 06:19:06,922 INFO L226 Difference]: Without dead ends: 163 [2020-10-20 06:19:06,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-20 06:19:06,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-20 06:19:06,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 115. [2020-10-20 06:19:06,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-20 06:19:06,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 129 transitions. [2020-10-20 06:19:06,928 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 129 transitions. Word has length 23 [2020-10-20 06:19:06,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:06,928 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 129 transitions. [2020-10-20 06:19:06,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:19:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 129 transitions. [2020-10-20 06:19:06,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:19:06,930 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:06,930 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] [2020-10-20 06:19:06,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 06:19:06,930 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:06,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:06,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2145672081, now seen corresponding path program 1 times [2020-10-20 06:19:06,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:06,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938136804] [2020-10-20 06:19:06,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:07,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:07,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:07,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938136804] [2020-10-20 06:19:07,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:07,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:19:07,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599192461] [2020-10-20 06:19:07,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:19:07,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:07,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:19:07,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:19:07,076 INFO L87 Difference]: Start difference. First operand 115 states and 129 transitions. Second operand 10 states. [2020-10-20 06:19:07,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:07,553 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2020-10-20 06:19:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 06:19:07,553 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-20 06:19:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:07,555 INFO L225 Difference]: With dead ends: 120 [2020-10-20 06:19:07,555 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 06:19:07,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-20 06:19:07,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 06:19:07,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2020-10-20 06:19:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-20 06:19:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 128 transitions. [2020-10-20 06:19:07,560 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 128 transitions. Word has length 23 [2020-10-20 06:19:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:07,561 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 128 transitions. [2020-10-20 06:19:07,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:19:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 128 transitions. [2020-10-20 06:19:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 06:19:07,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:07,562 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] [2020-10-20 06:19:07,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 06:19:07,563 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:07,563 INFO L82 PathProgramCache]: Analyzing trace with hash -2145672080, now seen corresponding path program 1 times [2020-10-20 06:19:07,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:07,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352373803] [2020-10-20 06:19:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:07,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:07,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352373803] [2020-10-20 06:19:07,680 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:07,680 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-20 06:19:07,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672101277] [2020-10-20 06:19:07,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-20 06:19:07,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:07,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-20 06:19:07,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:19:07,682 INFO L87 Difference]: Start difference. First operand 114 states and 128 transitions. Second operand 10 states. [2020-10-20 06:19:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:08,173 INFO L93 Difference]: Finished difference Result 119 states and 132 transitions. [2020-10-20 06:19:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 06:19:08,174 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-10-20 06:19:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:08,175 INFO L225 Difference]: With dead ends: 119 [2020-10-20 06:19:08,175 INFO L226 Difference]: Without dead ends: 119 [2020-10-20 06:19:08,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-10-20 06:19:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-20 06:19:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 113. [2020-10-20 06:19:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 06:19:08,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 127 transitions. [2020-10-20 06:19:08,182 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 127 transitions. Word has length 23 [2020-10-20 06:19:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:08,183 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 127 transitions. [2020-10-20 06:19:08,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-20 06:19:08,183 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 127 transitions. [2020-10-20 06:19:08,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:19:08,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:08,192 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] [2020-10-20 06:19:08,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-20 06:19:08,193 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:08,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:08,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1241290495, now seen corresponding path program 1 times [2020-10-20 06:19:08,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:08,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295923187] [2020-10-20 06:19:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:08,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:19:08,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:19:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:19:08,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295923187] [2020-10-20 06:19:08,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:19:08,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 06:19:08,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096763887] [2020-10-20 06:19:08,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:19:08,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:19:08,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:19:08,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:19:08,280 INFO L87 Difference]: Start difference. First operand 113 states and 127 transitions. Second operand 5 states. [2020-10-20 06:19:08,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:19:08,467 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2020-10-20 06:19:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:19:08,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-20 06:19:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:19:08,469 INFO L225 Difference]: With dead ends: 129 [2020-10-20 06:19:08,470 INFO L226 Difference]: Without dead ends: 129 [2020-10-20 06:19:08,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:19:08,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-20 06:19:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 113. [2020-10-20 06:19:08,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 06:19:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2020-10-20 06:19:08,473 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 26 [2020-10-20 06:19:08,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:19:08,474 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2020-10-20 06:19:08,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:19:08,474 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2020-10-20 06:19:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 06:19:08,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:19:08,475 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] [2020-10-20 06:19:08,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-20 06:19:08,475 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr47ENSURES_VIOLATIONMEMORY_LEAK, mainErr24REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-20 06:19:08,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:19:08,476 INFO L82 PathProgramCache]: Analyzing trace with hash -148961045, now seen corresponding path program 1 times [2020-10-20 06:19:08,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:19:08,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027309011] [2020-10-20 06:19:08,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:19:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:19:08,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:19:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:19:08,503 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:19:08,531 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:19:08,532 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:19:08,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-20 06:19:08,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:19:08 BoogieIcfgContainer [2020-10-20 06:19:08,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:19:08,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:19:08,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:19:08,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:19:08,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:19:00" (3/4) ... [2020-10-20 06:19:08,575 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 06:19:08,635 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:19:08,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:19:08,637 INFO L168 Benchmark]: Toolchain (without parser) took 10137.90 ms. Allocated memory was 33.0 MB in the beginning and 102.8 MB in the end (delta: 69.7 MB). Free memory was 5.3 MB in the beginning and 46.2 MB in the end (delta: -40.9 MB). Peak memory consumption was 28.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,637 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.5 MB in the end (delta: 68.2 kB). Peak memory consumption was 68.2 kB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.43 ms. Allocated memory was 35.7 MB in the beginning and 43.5 MB in the end (delta: 7.9 MB). Free memory was 17.9 MB in the beginning and 13.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,639 INFO L168 Benchmark]: Boogie Preprocessor took 82.90 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 13.9 MB in the beginning and 25.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,639 INFO L168 Benchmark]: RCFGBuilder took 753.47 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 25.8 MB in the beginning and 23.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,640 INFO L168 Benchmark]: TraceAbstraction took 8544.97 ms. Allocated memory was 47.7 MB in the beginning and 102.8 MB in the end (delta: 55.1 MB). Free memory was 22.9 MB in the beginning and 50.4 MB in the end (delta: -27.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,641 INFO L168 Benchmark]: Witness Printer took 63.35 ms. Allocated memory is still 102.8 MB. Free memory was 49.0 MB in the beginning and 46.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:19:08,644 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.5 MB in the end (delta: 68.2 kB). Peak memory consumption was 68.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 674.43 ms. Allocated memory was 35.7 MB in the beginning and 43.5 MB in the end (delta: 7.9 MB). Free memory was 17.9 MB in the beginning and 13.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 82.90 ms. Allocated memory was 43.5 MB in the beginning and 44.6 MB in the end (delta: 1.0 MB). Free memory was 13.9 MB in the beginning and 25.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 753.47 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 25.8 MB in the beginning and 23.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 19.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 8544.97 ms. Allocated memory was 47.7 MB in the beginning and 102.8 MB in the end (delta: 55.1 MB). Free memory was 22.9 MB in the beginning and 50.4 MB in the end (delta: -27.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 14.3 GB. * Witness Printer took 63.35 ms. Allocated memory is still 102.8 MB. Free memory was 49.0 MB in the beginning and 46.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1000] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1003] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1018] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1019] x->next = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1020] head = x VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1040] x = head VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}] [L1043] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=1] [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->next={-1:0}] [L1049] x = x->next [L1050] COND TRUE \read(*x) VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1052] EXPR x->data VAL [head={-2:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1052] COND TRUE x->data != 1 [L1053] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-simple-white-blue-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 115 locations, 49 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.4s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1030 SDtfs, 1567 SDslu, 1654 SDs, 0 SdLazy, 4688 SolverSat, 298 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 468 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 29968 SizeOfPredicates, 7 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 16 InterpolantComputations, 15 PerfectInterpolantSequences, 2/3 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...