./Ultimate.py --spec /storage/repos/svcomp/c/properties/valid-memcleanup.prp --file /storage/repos/svcomp/c/list-properties/simple_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/simple_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 7716826f9b443d6310df8de2d829a4d2f71b85a7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:03:36,227 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:03:36,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:03:36,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:03:36,242 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:03:36,243 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:03:36,245 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:03:36,247 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:03:36,249 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:03:36,250 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:03:36,251 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:03:36,251 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:03:36,252 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:03:36,253 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:03:36,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:03:36,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:03:36,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:03:36,259 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:03:36,261 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:03:36,262 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:03:36,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:03:36,266 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:03:36,268 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:03:36,269 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:03:36,269 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:03:36,270 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:03:36,272 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:03:36,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:03:36,273 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:03:36,275 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:03:36,275 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:03:36,276 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:03:36,276 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:03:36,276 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:03:36,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:03:36,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:03:36,279 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2018-11-28 23:03:36,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:03:36,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:03:36,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:03:36,295 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:03:36,297 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:03:36,297 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:03:36,297 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:03:36,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:03:36,297 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:03:36,297 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-28 23:03:36,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:03:36,299 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:03:36,300 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:03:36,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:03:36,301 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:03:36,301 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:03:36,301 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:03:36,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:03:36,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:03:36,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:03:36,302 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:03:36,302 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:03:36,302 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 -> 7716826f9b443d6310df8de2d829a4d2f71b85a7 [2018-11-28 23:03:36,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:03:36,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:03:36,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:03:36,360 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:03:36,360 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:03:36,361 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:36,421 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2a03ae5/bccd06342983436f955f951f652fc1b3/FLAG194e5de49 [2018-11-28 23:03:36,924 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:03:36,925 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/list-properties/simple_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:36,937 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2a03ae5/bccd06342983436f955f951f652fc1b3/FLAG194e5de49 [2018-11-28 23:03:37,231 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c2a03ae5/bccd06342983436f955f951f652fc1b3 [2018-11-28 23:03:37,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:03:37,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-28 23:03:37,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:37,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:03:37,243 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:03:37,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7af74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37, skipping insertion in model container [2018-11-28 23:03:37,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:03:37,305 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:03:37,681 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:37,696 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:03:37,753 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:03:37,912 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:03:37,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37 WrapperNode [2018-11-28 23:03:37,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:03:37,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:03:37,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:03:37,916 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:03:37,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (1/1) ... [2018-11-28 23:03:37,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:03:37,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:03:37,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:03:37,995 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:03:37,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (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 23:03:38,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:03:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:03:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2018-11-28 23:03:38,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:03:38,077 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-28 23:03:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-28 23:03:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-11-28 23:03:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-11-28 23:03:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-11-28 23:03:38,078 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-11-28 23:03:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-11-28 23:03:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-11-28 23:03:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-11-28 23:03:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-11-28 23:03:38,079 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-11-28 23:03:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-11-28 23:03:38,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-11-28 23:03:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-11-28 23:03:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-11-28 23:03:38,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-11-28 23:03:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-11-28 23:03:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-11-28 23:03:38,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-11-28 23:03:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-11-28 23:03:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-11-28 23:03:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-11-28 23:03:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-11-28 23:03:38,084 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-28 23:03:38,085 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-11-28 23:03:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-11-28 23:03:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-11-28 23:03:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-11-28 23:03:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-11-28 23:03:38,086 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-11-28 23:03:38,087 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-11-28 23:03:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-11-28 23:03:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-11-28 23:03:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-11-28 23:03:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-11-28 23:03:38,089 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-11-28 23:03:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-11-28 23:03:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-11-28 23:03:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-11-28 23:03:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-11-28 23:03:38,092 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-11-28 23:03:38,093 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-11-28 23:03:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-11-28 23:03:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-11-28 23:03:38,094 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-11-28 23:03:38,095 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-11-28 23:03:38,096 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-11-28 23:03:38,099 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-11-28 23:03:38,099 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-11-28 23:03:38,099 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-11-28 23:03:38,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-11-28 23:03:38,100 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-11-28 23:03:38,101 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-11-28 23:03:38,102 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-11-28 23:03:38,102 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-11-28 23:03:38,102 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-11-28 23:03:38,102 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-11-28 23:03:38,103 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-11-28 23:03:38,103 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-11-28 23:03:38,103 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-11-28 23:03:38,103 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 23:03:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 23:03:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:03:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:03:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:03:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:03:38,884 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:03:38,885 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 23:03:38,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:38 BoogieIcfgContainer [2018-11-28 23:03:38,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:03:38,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:03:38,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:03:38,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:03:38,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:03:37" (1/3) ... [2018-11-28 23:03:38,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4059fff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:38, skipping insertion in model container [2018-11-28 23:03:38,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:03:37" (2/3) ... [2018-11-28 23:03:38,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4059fff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:03:38, skipping insertion in model container [2018-11-28 23:03:38,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:38" (3/3) ... [2018-11-28 23:03:38,895 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_false-unreach-call_false-valid-memcleanup.i [2018-11-28 23:03:38,906 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:03:38,915 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-11-28 23:03:38,933 INFO L257 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2018-11-28 23:03:38,964 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:03:38,965 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:03:38,965 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-28 23:03:38,965 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:03:38,965 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:03:38,965 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:03:38,966 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:03:38,966 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:03:38,966 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:03:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-28 23:03:39,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:03:39,007 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:39,008 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:39,012 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:39,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:39,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1369312263, now seen corresponding path program 1 times [2018-11-28 23:03:39,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:39,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:39,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:39,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:39,219 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 23:03:39,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:39,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:03:39,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:03:39,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:03:39,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:03:39,246 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2018-11-28 23:03:39,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:39,651 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-11-28 23:03:39,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:03:39,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:03:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:39,666 INFO L225 Difference]: With dead ends: 51 [2018-11-28 23:03:39,667 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 23:03:39,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:03:39,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 23:03:39,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 23:03:39,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 23:03:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2018-11-28 23:03:39,706 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 9 [2018-11-28 23:03:39,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:39,707 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2018-11-28 23:03:39,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:03:39,707 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2018-11-28 23:03:39,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:03:39,708 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:39,708 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:39,708 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:39,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:39,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1369312264, now seen corresponding path program 1 times [2018-11-28 23:03:39,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:39,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:39,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:39,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:39,906 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 23:03:39,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:39,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:03:39,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:03:39,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:03:39,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:03:39,909 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 3 states. [2018-11-28 23:03:40,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:40,073 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-28 23:03:40,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:03:40,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:03:40,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:40,075 INFO L225 Difference]: With dead ends: 42 [2018-11-28 23:03:40,075 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 23:03:40,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:03:40,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 23:03:40,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 23:03:40,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 23:03:40,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-11-28 23:03:40,083 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 9 [2018-11-28 23:03:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:40,084 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-11-28 23:03:40,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:03:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-11-28 23:03:40,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 23:03:40,085 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:40,085 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:40,085 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:40,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:40,085 INFO L82 PathProgramCache]: Analyzing trace with hash -417757206, now seen corresponding path program 1 times [2018-11-28 23:03:40,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:40,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:40,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:40,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:40,174 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 23:03:40,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:40,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:40,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:40,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:40,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:40,175 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 4 states. [2018-11-28 23:03:40,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:40,764 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2018-11-28 23:03:40,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:03:40,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 23:03:40,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:40,767 INFO L225 Difference]: With dead ends: 71 [2018-11-28 23:03:40,768 INFO L226 Difference]: Without dead ends: 71 [2018-11-28 23:03:40,768 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:40,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-28 23:03:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2018-11-28 23:03:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 23:03:40,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2018-11-28 23:03:40,776 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 12 [2018-11-28 23:03:40,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:40,777 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2018-11-28 23:03:40,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2018-11-28 23:03:40,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 23:03:40,778 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:40,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:40,778 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:40,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:40,779 INFO L82 PathProgramCache]: Analyzing trace with hash -417757205, now seen corresponding path program 1 times [2018-11-28 23:03:40,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:40,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:40,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:40,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:40,873 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 23:03:40,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:40,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:03:40,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:40,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:40,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:40,875 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand 4 states. [2018-11-28 23:03:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:41,146 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2018-11-28 23:03:41,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:41,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 23:03:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:41,149 INFO L225 Difference]: With dead ends: 60 [2018-11-28 23:03:41,149 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 23:03:41,149 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 23:03:41,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 23:03:41,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2018-11-28 23:03:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 23:03:41,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2018-11-28 23:03:41,156 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 12 [2018-11-28 23:03:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:41,156 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2018-11-28 23:03:41,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2018-11-28 23:03:41,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 23:03:41,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:41,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:41,158 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:41,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:41,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1889449163, now seen corresponding path program 1 times [2018-11-28 23:03:41,158 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:41,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:41,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:41,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:41,228 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 23:03:41,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:41,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:03:41,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:03:41,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:03:41,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:03:41,230 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 4 states. [2018-11-28 23:03:41,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:41,338 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-11-28 23:03:41,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:03:41,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-28 23:03:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:41,341 INFO L225 Difference]: With dead ends: 57 [2018-11-28 23:03:41,341 INFO L226 Difference]: Without dead ends: 57 [2018-11-28 23:03:41,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:03:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-28 23:03:41,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2018-11-28 23:03:41,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 23:03:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-11-28 23:03:41,348 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 17 [2018-11-28 23:03:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:41,348 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-11-28 23:03:41,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:03:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-11-28 23:03:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 23:03:41,349 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:41,350 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:41,350 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:41,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:41,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1561801763, now seen corresponding path program 1 times [2018-11-28 23:03:41,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:41,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:41,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:41,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:41,508 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 23:03:41,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:41,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:41,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:41,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:41,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:41,510 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 6 states. [2018-11-28 23:03:41,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:41,843 INFO L93 Difference]: Finished difference Result 65 states and 68 transitions. [2018-11-28 23:03:41,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 23:03:41,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-28 23:03:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:41,845 INFO L225 Difference]: With dead ends: 65 [2018-11-28 23:03:41,845 INFO L226 Difference]: Without dead ends: 65 [2018-11-28 23:03:41,846 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 23:03:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-28 23:03:41,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2018-11-28 23:03:41,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 23:03:41,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-11-28 23:03:41,852 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 20 [2018-11-28 23:03:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:41,852 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-11-28 23:03:41,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-11-28 23:03:41,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 23:03:41,853 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:41,854 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:03:41,854 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:41,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:41,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1561801762, now seen corresponding path program 1 times [2018-11-28 23:03:41,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:41,855 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:41,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:41,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:42,038 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 23:03:42,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:03:42,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:03:42,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 23:03:42,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 23:03:42,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 23:03:42,041 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-11-28 23:03:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:42,368 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2018-11-28 23:03:42,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:03:42,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-28 23:03:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:42,371 INFO L225 Difference]: With dead ends: 61 [2018-11-28 23:03:42,371 INFO L226 Difference]: Without dead ends: 61 [2018-11-28 23:03:42,372 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 23:03:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-11-28 23:03:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 42. [2018-11-28 23:03:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 23:03:42,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-11-28 23:03:42,377 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 20 [2018-11-28 23:03:42,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:42,377 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-11-28 23:03:42,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 23:03:42,378 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-11-28 23:03:42,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 23:03:42,379 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:42,379 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 23:03:42,379 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:42,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:42,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1699550851, now seen corresponding path program 1 times [2018-11-28 23:03:42,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:42,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:42,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:42,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:42,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:42,580 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:03:42,580 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:03:42,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:03:42,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:03:42,821 INFO L478 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 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-28 23:03:42,835 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-11-28 23:03:42,836 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:03:42,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:42,958 INFO L478 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 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-28 23:03:42,966 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-11-28 23:03:42,966 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 23:03:42,969 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:42,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:42,979 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:26, output treesize:18 [2018-11-28 23:03:43,121 INFO L478 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 15 treesize of output 11 [2018-11-28 23:03:43,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-28 23:03:43,126 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 23:03:43,131 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:43,144 INFO L478 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 15 treesize of output 11 [2018-11-28 23:03:43,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-28 23:03:43,148 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 23:03:43,150 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:43,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 23:03:43,158 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2018-11-28 23:03:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:03:43,207 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:03:43,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 11 [2018-11-28 23:03:43,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 23:03:43,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 23:03:43,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-28 23:03:43,209 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 11 states. [2018-11-28 23:03:43,516 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2018-11-28 23:03:43,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:03:43,652 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-28 23:03:43,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:03:43,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2018-11-28 23:03:43,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:03:43,653 INFO L225 Difference]: With dead ends: 57 [2018-11-28 23:03:43,653 INFO L226 Difference]: Without dead ends: 57 [2018-11-28 23:03:43,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2018-11-28 23:03:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-11-28 23:03:43,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2018-11-28 23:03:43,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 23:03:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-11-28 23:03:43,659 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 21 [2018-11-28 23:03:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:03:43,659 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-11-28 23:03:43,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 23:03:43,659 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-11-28 23:03:43,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 23:03:43,660 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:03:43,660 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 23:03:43,661 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr6REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr16ENSURES_VIOLATIONMEMORY_LEAK, mainErr1REQUIRES_VIOLATION]=== [2018-11-28 23:03:43,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:03:43,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1146467520, now seen corresponding path program 1 times [2018-11-28 23:03:43,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:03:43,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:03:43,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:43,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:03:43,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:03:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:03:43,725 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:03:43,741 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:43,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:03:43 BoogieIcfgContainer [2018-11-28 23:03:43,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:03:43,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:03:43,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:03:43,764 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:03:43,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:03:38" (3/4) ... [2018-11-28 23:03:43,767 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:03:43,771 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-11-28 23:03:43,816 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:03:43,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:03:43,818 INFO L168 Benchmark]: Toolchain (without parser) took 6582.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 842.9 MB in the end (delta: 108.4 MB). Peak memory consumption was 251.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:43,819 INFO L168 Benchmark]: CDTParser took 0.15 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 23:03:43,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:43,820 INFO L168 Benchmark]: Boogie Preprocessor took 78.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:43,821 INFO L168 Benchmark]: RCFGBuilder took 891.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:43,822 INFO L168 Benchmark]: TraceAbstraction took 4876.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 239.5 MB). Peak memory consumption was 239.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:03:43,823 INFO L168 Benchmark]: Witness Printer took 53.00 ms. Allocated memory is still 1.2 GB. Free memory is still 842.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:03:43,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 677.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 891.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4876.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 842.9 MB in the end (delta: 239.5 MB). Peak memory consumption was 239.5 MB. Max. memory is 11.5 GB. * Witness Printer took 53.00 ms. Allocated memory is still 1.2 GB. Free memory is still 842.9 MB. 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={14:0}, malloc(sizeof(struct node))={14:0}] [L628] COND FALSE !(a == 0) VAL [a={14:0}, malloc(sizeof(struct node))={14:0}] [L629] List t; [L630] List p = a; VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L631] a->h = 2 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L632] COND FALSE !(__VERIFIER_nondet_int()) [L639] p->h = 2 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L640] p->n = 0 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L641] p = a VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L642] COND TRUE p!=0 VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}] [L643] EXPR p->h VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}, p->h=2] [L643] COND FALSE !(p->h != 2) [L646] EXPR p->n VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={14:0}, p->n={0:0}] [L646] p = p->n [L642] COND FALSE !(p!=0) VAL [a={14:0}, malloc(sizeof(struct node))={14:0}, p={0:0}] [L648] return 0; VAL [\result=0, a={14:0}, malloc(sizeof(struct node))={14:0}, p={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 54 locations, 17 error locations. UNSAFE Result, 4.8s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 209 SDtfs, 419 SDslu, 292 SDs, 0 SdLazy, 519 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 77 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 12172 SizeOfPredicates, 11 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...