./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/list-ext-properties/list-ext.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/list-ext-properties/list-ext.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3eaec471f51d4269ee2125af75884a2ba8bd8fa ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-30f4e4a [2019-11-28 02:36:42,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:36:42,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:36:42,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:36:42,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:36:42,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:36:42,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:36:42,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:36:42,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:36:42,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:36:42,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:36:42,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:36:42,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:36:42,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:36:42,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:36:42,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:36:42,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:36:42,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:36:42,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:36:42,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:36:42,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:36:42,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:36:42,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:36:42,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:36:42,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:36:42,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:36:42,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:36:42,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:36:42,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:36:42,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:36:42,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:36:42,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:36:42,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:36:42,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:36:42,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:36:42,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:36:42,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:36:42,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:36:42,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:36:42,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:36:42,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:36:42,226 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-28 02:36:42,263 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:36:42,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:36:42,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:36:42,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:36:42,266 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:36:42,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:36:42,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:36:42,267 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:36:42,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:36:42,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:36:42,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:36:42,269 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-28 02:36:42,269 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-28 02:36:42,270 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-28 02:36:42,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:36:42,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-28 02:36:42,271 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:36:42,271 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:36:42,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:36:42,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:36:42,272 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:36:42,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:36:42,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:36:42,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:36:42,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:36:42,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:36:42,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:36:42,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3eaec471f51d4269ee2125af75884a2ba8bd8fa [2019-11-28 02:36:42,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:36:42,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:36:42,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:36:42,614 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:36:42,614 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:36:42,615 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/list-ext.i [2019-11-28 02:36:42,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e79ba733/5535da9b5114417583edb11f83962e6c/FLAGd75b4901e [2019-11-28 02:36:43,239 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:36:43,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/list-ext.i [2019-11-28 02:36:43,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e79ba733/5535da9b5114417583edb11f83962e6c/FLAGd75b4901e [2019-11-28 02:36:43,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e79ba733/5535da9b5114417583edb11f83962e6c [2019-11-28 02:36:43,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:36:43,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-28 02:36:43,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:36:43,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:36:43,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:36:43,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:36:43" (1/1) ... [2019-11-28 02:36:43,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35373ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:43, skipping insertion in model container [2019-11-28 02:36:43,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:36:43" (1/1) ... [2019-11-28 02:36:43,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:36:43,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:36:44,164 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:36:44,173 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:36:44,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:36:44,279 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:36:44,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44 WrapperNode [2019-11-28 02:36:44,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:36:44,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:36:44,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:36:44,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:36:44,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (1/1) ... [2019-11-28 02:36:44,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:36:44,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:36:44,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:36:44,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:36:44,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (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 [2019-11-28 02:36:44,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-28 02:36:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:36:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-28 02:36:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-28 02:36:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-28 02:36:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-28 02:36:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-28 02:36:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-28 02:36:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-28 02:36:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-28 02:36:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-28 02:36:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-28 02:36:44,432 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-28 02:36:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-28 02:36:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-28 02:36:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-28 02:36:44,433 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-28 02:36:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-28 02:36:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-28 02:36:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-28 02:36:44,434 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-28 02:36:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-28 02:36:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-28 02:36:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-28 02:36:44,435 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-28 02:36:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-28 02:36:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-28 02:36:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-28 02:36:44,436 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-28 02:36:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-28 02:36:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-28 02:36:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-28 02:36:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-28 02:36:44,437 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-28 02:36:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-28 02:36:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-28 02:36:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-28 02:36:44,438 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-28 02:36:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-28 02:36:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-28 02:36:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-28 02:36:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-28 02:36:44,439 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-28 02:36:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-28 02:36:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-28 02:36:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-28 02:36:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-28 02:36:44,440 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-28 02:36:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-28 02:36:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-28 02:36:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-28 02:36:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-28 02:36:44,441 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-28 02:36:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-28 02:36:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-28 02:36:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-28 02:36:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-28 02:36:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-28 02:36:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-28 02:36:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-28 02:36:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-28 02:36:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-28 02:36:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-28 02:36:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-28 02:36:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-28 02:36:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-28 02:36:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-28 02:36:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-28 02:36:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-28 02:36:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-28 02:36:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-28 02:36:44,445 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-28 02:36:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-28 02:36:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-28 02:36:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-28 02:36:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-28 02:36:44,446 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-28 02:36:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-28 02:36:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-28 02:36:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-28 02:36:44,447 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-28 02:36:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-28 02:36:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-28 02:36:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-28 02:36:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-28 02:36:44,448 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-28 02:36:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-28 02:36:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-28 02:36:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-28 02:36:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-28 02:36:44,449 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-28 02:36:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-28 02:36:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-28 02:36:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-28 02:36:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-28 02:36:44,450 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-28 02:36:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-28 02:36:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-28 02:36:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-28 02:36:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-28 02:36:44,451 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-28 02:36:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-28 02:36:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-28 02:36:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-28 02:36:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-28 02:36:44,452 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-28 02:36:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-28 02:36:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-28 02:36:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-28 02:36:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-28 02:36:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-28 02:36:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-28 02:36:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-28 02:36:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-28 02:36:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-28 02:36:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 02:36:44,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 02:36:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 02:36:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 02:36:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 02:36:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 02:36:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-28 02:36:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:36:44,818 INFO L712 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-28 02:36:45,194 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:36:45,194 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:36:45,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:36:45 BoogieIcfgContainer [2019-11-28 02:36:45,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:36:45,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:36:45,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:36:45,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:36:45,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:36:43" (1/3) ... [2019-11-28 02:36:45,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbfa059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:36:45, skipping insertion in model container [2019-11-28 02:36:45,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:36:44" (2/3) ... [2019-11-28 02:36:45,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbfa059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:36:45, skipping insertion in model container [2019-11-28 02:36:45,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:36:45" (3/3) ... [2019-11-28 02:36:45,207 INFO L109 eAbstractionObserver]: Analyzing ICFG list-ext.i [2019-11-28 02:36:45,218 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:36:45,227 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-11-28 02:36:45,241 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-11-28 02:36:45,274 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:36:45,275 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-28 02:36:45,276 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:36:45,276 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:36:45,276 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:36:45,277 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:36:45,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:36:45,277 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:36:45,304 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-28 02:36:45,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 02:36:45,318 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:45,319 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:45,320 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:45,327 INFO L82 PathProgramCache]: Analyzing trace with hash 958004881, now seen corresponding path program 1 times [2019-11-28 02:36:45,337 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:45,338 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933365013] [2019-11-28 02:36:45,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:45,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:45,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933365013] [2019-11-28 02:36:45,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:45,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 02:36:45,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077345580] [2019-11-28 02:36:45,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:36:45,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:45,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:36:45,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:36:45,542 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 3 states. [2019-11-28 02:36:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:45,796 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2019-11-28 02:36:45,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:36:45,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-28 02:36:45,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:45,808 INFO L225 Difference]: With dead ends: 95 [2019-11-28 02:36:45,809 INFO L226 Difference]: Without dead ends: 87 [2019-11-28 02:36:45,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:36:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-28 02:36:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-11-28 02:36:45,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-28 02:36:45,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 93 transitions. [2019-11-28 02:36:45,858 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 93 transitions. Word has length 11 [2019-11-28 02:36:45,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:45,859 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 93 transitions. [2019-11-28 02:36:45,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:36:45,859 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 93 transitions. [2019-11-28 02:36:45,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:36:45,860 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:45,860 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:45,861 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:45,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:45,862 INFO L82 PathProgramCache]: Analyzing trace with hash -367606576, now seen corresponding path program 1 times [2019-11-28 02:36:45,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:45,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356379866] [2019-11-28 02:36:45,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:45,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:45,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:45,959 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356379866] [2019-11-28 02:36:45,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:45,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:36:45,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713222343] [2019-11-28 02:36:45,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:36:45,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:45,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:36:45,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:36:45,963 INFO L87 Difference]: Start difference. First operand 87 states and 93 transitions. Second operand 5 states. [2019-11-28 02:36:46,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:46,331 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2019-11-28 02:36:46,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 02:36:46,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 02:36:46,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:46,334 INFO L225 Difference]: With dead ends: 109 [2019-11-28 02:36:46,334 INFO L226 Difference]: Without dead ends: 109 [2019-11-28 02:36:46,335 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:36:46,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-28 02:36:46,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 89. [2019-11-28 02:36:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2019-11-28 02:36:46,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2019-11-28 02:36:46,360 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 12 [2019-11-28 02:36:46,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:46,360 INFO L462 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2019-11-28 02:36:46,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:36:46,361 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2019-11-28 02:36:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 02:36:46,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:46,362 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:46,364 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:46,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash -367606575, now seen corresponding path program 1 times [2019-11-28 02:36:46,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:46,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934073159] [2019-11-28 02:36:46,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:46,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934073159] [2019-11-28 02:36:46,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:46,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 02:36:46,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349668915] [2019-11-28 02:36:46,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 02:36:46,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:46,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 02:36:46,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 02:36:46,533 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand 5 states. [2019-11-28 02:36:46,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:46,826 INFO L93 Difference]: Finished difference Result 125 states and 138 transitions. [2019-11-28 02:36:46,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 02:36:46,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-28 02:36:46,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:46,828 INFO L225 Difference]: With dead ends: 125 [2019-11-28 02:36:46,828 INFO L226 Difference]: Without dead ends: 125 [2019-11-28 02:36:46,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-28 02:36:46,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-11-28 02:36:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 108. [2019-11-28 02:36:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 02:36:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2019-11-28 02:36:46,840 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 12 [2019-11-28 02:36:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:46,840 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2019-11-28 02:36:46,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 02:36:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2019-11-28 02:36:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:36:46,842 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:46,842 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:46,842 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:46,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1360992556, now seen corresponding path program 1 times [2019-11-28 02:36:46,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:46,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873307475] [2019-11-28 02:36:46,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:46,998 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873307475] [2019-11-28 02:36:46,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:46,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:36:46,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893291152] [2019-11-28 02:36:46,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:36:47,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:47,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:36:47,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:36:47,001 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 7 states. [2019-11-28 02:36:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:47,344 INFO L93 Difference]: Finished difference Result 182 states and 197 transitions. [2019-11-28 02:36:47,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:36:47,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-28 02:36:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:47,347 INFO L225 Difference]: With dead ends: 182 [2019-11-28 02:36:47,347 INFO L226 Difference]: Without dead ends: 182 [2019-11-28 02:36:47,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:36:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-28 02:36:47,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 111. [2019-11-28 02:36:47,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-28 02:36:47,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 125 transitions. [2019-11-28 02:36:47,358 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 125 transitions. Word has length 21 [2019-11-28 02:36:47,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:47,358 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 125 transitions. [2019-11-28 02:36:47,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:36:47,358 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 125 transitions. [2019-11-28 02:36:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:36:47,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:47,359 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:47,360 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:47,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:47,360 INFO L82 PathProgramCache]: Analyzing trace with hash 500555716, now seen corresponding path program 1 times [2019-11-28 02:36:47,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:47,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908933877] [2019-11-28 02:36:47,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:47,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:47,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908933877] [2019-11-28 02:36:47,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:47,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 02:36:47,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331048853] [2019-11-28 02:36:47,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:36:47,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:47,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:36:47,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:36:47,453 INFO L87 Difference]: Start difference. First operand 111 states and 125 transitions. Second operand 7 states. [2019-11-28 02:36:47,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:47,971 INFO L93 Difference]: Finished difference Result 143 states and 161 transitions. [2019-11-28 02:36:47,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:36:47,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-28 02:36:47,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:47,973 INFO L225 Difference]: With dead ends: 143 [2019-11-28 02:36:47,974 INFO L226 Difference]: Without dead ends: 143 [2019-11-28 02:36:47,974 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-28 02:36:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-28 02:36:47,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 115. [2019-11-28 02:36:47,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-28 02:36:47,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2019-11-28 02:36:47,983 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 21 [2019-11-28 02:36:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:47,983 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2019-11-28 02:36:47,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:36:47,983 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2019-11-28 02:36:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-28 02:36:47,984 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:47,984 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:47,985 INFO L410 AbstractCegarLoop]: === Iteration 6 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:47,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:47,985 INFO L82 PathProgramCache]: Analyzing trace with hash 500555717, now seen corresponding path program 1 times [2019-11-28 02:36:47,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:47,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835448543] [2019-11-28 02:36:47,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:48,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:48,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835448543] [2019-11-28 02:36:48,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:48,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-28 02:36:48,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962899331] [2019-11-28 02:36:48,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:36:48,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:48,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:36:48,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:36:48,075 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 7 states. [2019-11-28 02:36:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:48,595 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-11-28 02:36:48,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-28 02:36:48,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-11-28 02:36:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:48,597 INFO L225 Difference]: With dead ends: 146 [2019-11-28 02:36:48,597 INFO L226 Difference]: Without dead ends: 146 [2019-11-28 02:36:48,598 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-11-28 02:36:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-11-28 02:36:48,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 106. [2019-11-28 02:36:48,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-28 02:36:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-11-28 02:36:48,605 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 21 [2019-11-28 02:36:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:48,605 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-11-28 02:36:48,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:36:48,606 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-11-28 02:36:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 02:36:48,607 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:48,607 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:48,607 INFO L410 AbstractCegarLoop]: === Iteration 7 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:48,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:48,608 INFO L82 PathProgramCache]: Analyzing trace with hash -2098756743, now seen corresponding path program 1 times [2019-11-28 02:36:48,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:48,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884385376] [2019-11-28 02:36:48,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:36:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:36:48,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884385376] [2019-11-28 02:36:48,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:36:48,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-28 02:36:48,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286334423] [2019-11-28 02:36:48,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 02:36:48,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:36:48,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 02:36:48,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-28 02:36:48,671 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 7 states. [2019-11-28 02:36:49,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:36:49,025 INFO L93 Difference]: Finished difference Result 172 states and 187 transitions. [2019-11-28 02:36:49,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 02:36:49,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2019-11-28 02:36:49,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:36:49,027 INFO L225 Difference]: With dead ends: 172 [2019-11-28 02:36:49,027 INFO L226 Difference]: Without dead ends: 172 [2019-11-28 02:36:49,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-28 02:36:49,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-11-28 02:36:49,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 108. [2019-11-28 02:36:49,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-28 02:36:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2019-11-28 02:36:49,035 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 23 [2019-11-28 02:36:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:36:49,035 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2019-11-28 02:36:49,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 02:36:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2019-11-28 02:36:49,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-28 02:36:49,036 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:36:49,037 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:36:49,037 INFO L410 AbstractCegarLoop]: === Iteration 8 === [mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr33ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr31ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr23REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr29ASSERT_VIOLATIONMEMORY_FREE, mainErr20REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr34ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr32ASSERT_VIOLATIONMEMORY_FREE, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr30ASSERT_VIOLATIONMEMORY_FREE, mainErr35ENSURES_VIOLATIONMEMORY_LEAK, mainErr12REQUIRES_VIOLATION]=== [2019-11-28 02:36:49,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:36:49,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2098809298, now seen corresponding path program 1 times [2019-11-28 02:36:49,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:36:49,038 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545508805] [2019-11-28 02:36:49,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:36:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:36:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 02:36:49,095 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 02:36:49,096 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 02:36:49,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:36:49 BoogieIcfgContainer [2019-11-28 02:36:49,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:36:49,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:36:49,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:36:49,130 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:36:49,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:36:45" (3/4) ... [2019-11-28 02:36:49,133 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 02:36:49,195 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:36:49,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:36:49,198 INFO L168 Benchmark]: Toolchain (without parser) took 5625.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -95.1 MB). Peak memory consumption was 124.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:36:49,199 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:36:49,200 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:36:49,200 INFO L168 Benchmark]: Boogie Preprocessor took 74.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:36:49,201 INFO L168 Benchmark]: RCFGBuilder took 840.22 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: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. [2019-11-28 02:36:49,202 INFO L168 Benchmark]: TraceAbstraction took 3931.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.4 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:36:49,203 INFO L168 Benchmark]: Witness Printer took 66.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:36:49,206 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 707.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -164.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 840.22 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: 59.4 MB). Peak memory consumption was 59.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3931.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.4 MB). Peak memory consumption was 73.1 MB. Max. memory is 11.5 GB. * Witness Printer took 66.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int i = 0; [L522] int y = 0; [L523] List a = (List) malloc(sizeof(struct node)); VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L524] COND FALSE !(a == 0) VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, y=0] [L525] List t; [L526] List p = a; VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] i < 10 && __VERIFIER_nondet_int() [L527] i < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, i < 10 && __VERIFIER_nondet_int()=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L527] COND FALSE !(i < 10 && __VERIFIER_nondet_int()) [L535] y < 10 && __VERIFIER_nondet_int() [L535] y < 10 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0, y < 10 && __VERIFIER_nondet_int()=0] [L535] COND FALSE !(y < 10 && __VERIFIER_nondet_int()) [L543] p->h = 3 VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L544] i = 0 [L545] y = 0 [L546] p = a VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] [L547] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L547] COND FALSE !(p->h == 1) [L551] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L551] COND FALSE !(p->h == 2) [L555] EXPR p->h VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, p->h=3, y=0] [L555] COND TRUE p->h != 3 || (i + y) < 20 [L556] __VERIFIER_error() VAL [a={-1:0}, i=0, malloc(sizeof(struct node))={-1:0}, p={-1:0}, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 111 locations, 36 error locations. Result: UNSAFE, OverallTime: 3.8s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 460 SDtfs, 765 SDslu, 797 SDs, 0 SdLazy, 1751 SolverSat, 125 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 240 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 8740 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...