./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memcleanup.prp --file /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.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 59941807ee61f14408f8cb6acb0590ac0607fc0d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:03:33,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:03:33,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:03:33,259 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:03:33,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:03:33,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:03:33,266 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:03:33,269 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:03:33,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:03:33,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:03:33,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:03:33,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:03:33,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:03:33,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:03:33,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:03:33,277 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:03:33,278 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:03:33,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:03:33,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:03:33,284 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:03:33,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:03:33,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:03:33,290 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:03:33,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:03:33,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:03:33,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:03:33,294 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:03:33,294 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:03:33,295 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:03:33,297 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:03:33,297 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:03:33,298 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:03:33,298 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:03:33,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:03:33,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:03:33,300 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:03:33,301 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-11-28 23:03:33,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:03:33,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:03:33,318 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:03:33,319 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:03:33,320 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:03:33,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:03:33,320 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:03:33,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:03:33,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:03:33,321 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:03:33,321 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:03:33,321 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:03:33,322 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:03:33,323 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 23:03:33,323 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 23:03:33,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:03:33,323 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:03:33,323 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:03:33,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:03:33,324 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:03:33,324 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:03:33,324 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:03:33,324 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:03:33,325 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:03:33,326 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:03:33,326 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:03:33,326 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:03:33,326 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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 -> 59941807ee61f14408f8cb6acb0590ac0607fc0d [2018-11-28 23:03:33,369 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:03:33,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:03:33,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:03:33,396 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:03:33,397 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:03:33,397 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:33,467 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b2fa0c/a105b6a217394755bb1c783c1325c99b/FLAGb64e4fed5 [2018-11-28 23:03:34,007 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:03:34,008 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:34,022 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b2fa0c/a105b6a217394755bb1c783c1325c99b/FLAGb64e4fed5 [2018-11-28 23:03:34,326 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f5b2fa0c/a105b6a217394755bb1c783c1325c99b [2018-11-28 23:03:34,330 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:03:34,331 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 23:03:34,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:34,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:03:34,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:03:34,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:34" (1/1) ... [2018-11-28 23:03:34,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71818fb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:34, skipping insertion in model container [2018-11-28 23:03:34,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:34" (1/1) ... [2018-11-28 23:03:34,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:03:34,405 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:03:34,849 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:34,870 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:03:35,028 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:35,091 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:03:35,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35 WrapperNode [2018-11-28 23:03:35,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:35,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:03:35,093 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:03:35,093 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:03:35,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (1/1) ... [2018-11-28 23:03:35,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:03:35,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:03:35,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:03:35,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:03:35,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (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 [2018-11-28 23:03:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:03:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:03:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 23:03:35,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:03:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 23:03:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 23:03:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 23:03:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 23:03:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 23:03:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 23:03:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 23:03:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 23:03:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 23:03:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 23:03:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 23:03:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 23:03:35,258 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 23:03:35,259 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 23:03:35,260 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 23:03:35,261 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 23:03:35,262 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 23:03:35,263 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 23:03:35,264 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 23:03:35,265 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 23:03:35,266 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 23:03:35,267 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 23:03:35,268 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 23:03:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 23:03:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 23:03:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 23:03:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 23:03:35,270 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 23:03:35,271 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 23:03:35,272 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 23:03:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 23:03:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 23:03:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 23:03:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:03:35,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:03:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:03:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 23:03:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 23:03:35,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:03:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:03:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:03:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:03:36,063 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:03:36,063 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 23:03:36,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:36 BoogieIcfgContainer [2018-11-28 23:03:36,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:03:36,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:03:36,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:03:36,069 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:03:36,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:03:34" (1/3) ... [2018-11-28 23:03:36,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a101123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:36, skipping insertion in model container [2018-11-28 23:03:36,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:35" (2/3) ... [2018-11-28 23:03:36,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a101123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:36, skipping insertion in model container [2018-11-28 23:03:36,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:36" (3/3) ... [2018-11-28 23:03:36,073 INFO L112 eAbstractionObserver]: Analyzing ICFG list_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:36,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:03:36,092 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 25 error locations. [2018-11-28 23:03:36,112 INFO L257 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2018-11-28 23:03:36,140 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:03:36,141 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:03:36,141 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 23:03:36,141 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:03:36,142 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:03:36,142 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:03:36,142 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:03:36,142 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:03:36,142 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:03:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2018-11-28 23:03:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:03:36,173 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:36,174 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:36,177 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:36,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:36,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532229, now seen corresponding path program 1 times [2018-11-28 23:03:36,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:36,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:36,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:36,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:36,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:36,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:36,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:36,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:36,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:36,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:36,496 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 4 states. [2018-11-28 23:03:36,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:36,903 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2018-11-28 23:03:36,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:36,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:03:36,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:36,917 INFO L225 Difference]: With dead ends: 79 [2018-11-28 23:03:36,918 INFO L226 Difference]: Without dead ends: 70 [2018-11-28 23:03:36,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:36,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-28 23:03:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 65. [2018-11-28 23:03:36,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 23:03:36,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 75 transitions. [2018-11-28 23:03:36,977 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 75 transitions. Word has length 11 [2018-11-28 23:03:36,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:36,977 INFO L480 AbstractCegarLoop]: Abstraction has 65 states and 75 transitions. [2018-11-28 23:03:36,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2018-11-28 23:03:36,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:03:36,978 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:36,978 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:36,979 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:36,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:36,979 INFO L82 PathProgramCache]: Analyzing trace with hash -2132532228, now seen corresponding path program 1 times [2018-11-28 23:03:36,979 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:36,979 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:36,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:36,980 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:36,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:37,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:37,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:37,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:37,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:37,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:37,116 INFO L87 Difference]: Start difference. First operand 65 states and 75 transitions. Second operand 4 states. [2018-11-28 23:03:37,279 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 23:03:37,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:37,666 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2018-11-28 23:03:37,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:37,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:03:37,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:37,669 INFO L225 Difference]: With dead ends: 88 [2018-11-28 23:03:37,669 INFO L226 Difference]: Without dead ends: 88 [2018-11-28 23:03:37,670 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-11-28 23:03:37,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 79. [2018-11-28 23:03:37,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-11-28 23:03:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2018-11-28 23:03:37,680 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 11 [2018-11-28 23:03:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:37,680 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2018-11-28 23:03:37,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:37,681 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2018-11-28 23:03:37,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 23:03:37,682 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:37,682 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:37,682 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:37,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:37,683 INFO L82 PathProgramCache]: Analyzing trace with hash 2029512520, now seen corresponding path program 1 times [2018-11-28 23:03:37,683 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:37,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:37,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:37,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:37,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:37,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:37,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:37,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 23:03:37,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:37,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:37,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:37,805 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 6 states. [2018-11-28 23:03:38,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:38,103 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2018-11-28 23:03:38,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:03:38,104 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 23:03:38,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:38,106 INFO L225 Difference]: With dead ends: 112 [2018-11-28 23:03:38,106 INFO L226 Difference]: Without dead ends: 112 [2018-11-28 23:03:38,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:03:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-11-28 23:03:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 82. [2018-11-28 23:03:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-28 23:03:38,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2018-11-28 23:03:38,115 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 19 [2018-11-28 23:03:38,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:38,116 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2018-11-28 23:03:38,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2018-11-28 23:03:38,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 23:03:38,117 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:38,117 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:38,118 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:38,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:38,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615762, now seen corresponding path program 1 times [2018-11-28 23:03:38,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:38,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:38,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:38,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:38,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:38,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:38,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:38,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:38,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:38,240 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 6 states. [2018-11-28 23:03:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:38,650 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2018-11-28 23:03:38,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:03:38,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 23:03:38,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:38,652 INFO L225 Difference]: With dead ends: 105 [2018-11-28 23:03:38,653 INFO L226 Difference]: Without dead ends: 105 [2018-11-28 23:03:38,653 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:03:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-11-28 23:03:38,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 85. [2018-11-28 23:03:38,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2018-11-28 23:03:38,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2018-11-28 23:03:38,661 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 19 [2018-11-28 23:03:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:38,662 INFO L480 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2018-11-28 23:03:38,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:38,662 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2018-11-28 23:03:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 23:03:38,663 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:38,663 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:38,663 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:38,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1001615761, now seen corresponding path program 1 times [2018-11-28 23:03:38,664 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:38,664 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:38,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:38,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:38,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:38,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:38,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:38,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:38,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:38,825 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 6 states. [2018-11-28 23:03:39,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:39,494 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2018-11-28 23:03:39,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:03:39,495 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-28 23:03:39,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:39,497 INFO L225 Difference]: With dead ends: 106 [2018-11-28 23:03:39,497 INFO L226 Difference]: Without dead ends: 106 [2018-11-28 23:03:39,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:03:39,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2018-11-28 23:03:39,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 76. [2018-11-28 23:03:39,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 23:03:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2018-11-28 23:03:39,504 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 19 [2018-11-28 23:03:39,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:39,505 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2018-11-28 23:03:39,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:39,505 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-28 23:03:39,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:03:39,506 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:39,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:39,506 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:39,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:39,507 INFO L82 PathProgramCache]: Analyzing trace with hash 398800981, now seen corresponding path program 1 times [2018-11-28 23:03:39,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:39,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:39,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:39,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:39,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:39,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 23:03:39,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:39,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:39,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:39,598 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2018-11-28 23:03:39,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:39,797 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2018-11-28 23:03:39,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 23:03:39,798 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 23:03:39,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:39,800 INFO L225 Difference]: With dead ends: 101 [2018-11-28 23:03:39,800 INFO L226 Difference]: Without dead ends: 101 [2018-11-28 23:03:39,801 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-28 23:03:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-28 23:03:39,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 78. [2018-11-28 23:03:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-28 23:03:39,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2018-11-28 23:03:39,807 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 21 [2018-11-28 23:03:39,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:39,807 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2018-11-28 23:03:39,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2018-11-28 23:03:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:03:39,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:39,808 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:39,809 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:39,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:39,809 INFO L82 PathProgramCache]: Analyzing trace with hash 102986752, now seen corresponding path program 1 times [2018-11-28 23:03:39,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:39,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:39,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:39,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:39,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:39,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:39,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:39,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:39,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:39,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:39,897 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand 6 states. [2018-11-28 23:03:40,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:40,130 INFO L93 Difference]: Finished difference Result 86 states and 93 transitions. [2018-11-28 23:03:40,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:03:40,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 23:03:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:40,133 INFO L225 Difference]: With dead ends: 86 [2018-11-28 23:03:40,133 INFO L226 Difference]: Without dead ends: 86 [2018-11-28 23:03:40,133 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 23:03:40,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-11-28 23:03:40,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 76. [2018-11-28 23:03:40,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-28 23:03:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2018-11-28 23:03:40,140 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 21 [2018-11-28 23:03:40,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:40,140 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2018-11-28 23:03:40,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2018-11-28 23:03:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:03:40,142 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:40,142 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:40,142 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:40,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash 102986753, now seen corresponding path program 1 times [2018-11-28 23:03:40,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:40,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:40,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:40,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:40,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:40,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:40,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:40,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:40,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:40,273 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2018-11-28 23:03:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:40,660 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-11-28 23:03:40,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:03:40,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 23:03:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:40,664 INFO L225 Difference]: With dead ends: 83 [2018-11-28 23:03:40,664 INFO L226 Difference]: Without dead ends: 83 [2018-11-28 23:03:40,665 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:03:40,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-28 23:03:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2018-11-28 23:03:40,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-28 23:03:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2018-11-28 23:03:40,670 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 21 [2018-11-28 23:03:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:40,671 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2018-11-28 23:03:40,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2018-11-28 23:03:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 23:03:40,672 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:40,672 INFO L402 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] [2018-11-28 23:03:40,672 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr24ENSURES_VIOLATIONMEMORY_LEAK, mainErr7REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION]=== [2018-11-28 23:03:40,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:40,673 INFO L82 PathProgramCache]: Analyzing trace with hash -523696583, now seen corresponding path program 1 times [2018-11-28 23:03:40,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:40,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:40,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:40,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:40,744 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:03:40,764 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:40,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:03:40 BoogieIcfgContainer [2018-11-28 23:03:40,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:03:40,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:03:40,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:03:40,783 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:03:40,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:36" (3/4) ... [2018-11-28 23:03:40,787 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:03:40,793 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:40,845 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:03:40,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:03:40,847 INFO L168 Benchmark]: Toolchain (without parser) took 6516.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 951.3 MB in the beginning and 1.2 GB in the end (delta: -232.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:40,847 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:40,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:40,849 INFO L168 Benchmark]: Boogie Preprocessor took 89.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:40,849 INFO L168 Benchmark]: RCFGBuilder took 880.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:40,850 INFO L168 Benchmark]: TraceAbstraction took 4717.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -135.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:40,851 INFO L168 Benchmark]: Witness Printer took 63.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:40,854 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 759.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 89.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 880.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4717.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -135.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 63.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 626]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L627] List a = (List) malloc(sizeof(struct node)); VAL [a={11:0}, malloc(sizeof(struct node))={11:0}] [L628] COND FALSE !(a == 0) VAL [a={11:0}, malloc(sizeof(struct node))={11:0}] [L629] List t; [L630] List p = a; VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L631] COND FALSE !(__VERIFIER_nondet_int()) [L638] COND FALSE !(__VERIFIER_nondet_int()) [L645] p->h = 3 VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L646] p = a VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] [L647] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L647] COND FALSE !(p->h == 2) [L649] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L649] COND FALSE !(p->h == 1) [L651] EXPR p->h VAL [a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}, p->h=3] [L651] COND FALSE !(p->h != 3) [L653] return 0; VAL [\result=0, a={11:0}, malloc(sizeof(struct node))={11:0}, p={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 25 error locations. UNSAFE Result, 4.6s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 349 SDtfs, 596 SDslu, 757 SDs, 0 SdLazy, 1010 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 8760 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...