/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-11 01:08:40,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 01:08:40,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 01:08:40,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 01:08:40,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 01:08:40,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 01:08:40,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 01:08:40,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 01:08:40,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 01:08:40,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 01:08:40,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 01:08:40,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 01:08:40,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 01:08:40,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 01:08:40,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 01:08:40,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 01:08:40,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 01:08:40,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 01:08:40,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 01:08:40,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 01:08:40,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 01:08:40,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 01:08:40,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 01:08:40,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 01:08:40,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-11 01:08:40,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-11 01:08:40,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-11 01:08:40,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-11 01:08:40,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-11 01:08:40,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-11 01:08:40,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 01:08:40,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 01:08:40,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 01:08:40,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 01:08:40,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 01:08:40,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 01:08:40,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 01:08:40,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 01:08:40,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 01:08:40,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 01:08:40,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 01:08:40,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 01:08:40,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 01:08:40,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 01:08:40,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 01:08:40,224 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 01:08:40,224 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 01:08:40,224 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 01:08:40,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 01:08:40,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 01:08:40,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 01:08:40,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 01:08:40,226 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 01:08:40,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 01:08:40,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 01:08:40,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 01:08:40,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 01:08:40,227 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 01:08:40,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 01:08:40,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 01:08:40,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:08:40,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 01:08:40,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 01:08:40,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 01:08:40,229 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-11 01:08:40,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 01:08:40,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 01:08:40,522 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 01:08:40,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 01:08:40,524 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 01:08:40,525 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-07-11 01:08:40,581 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b6e3ea8/b5ead75fde9c4f5cb0be5ef0d4d31a51/FLAG998ff5087 [2020-07-11 01:08:41,025 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 01:08:41,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/sll-rb-sentinel-2.i [2020-07-11 01:08:41,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b6e3ea8/b5ead75fde9c4f5cb0be5ef0d4d31a51/FLAG998ff5087 [2020-07-11 01:08:41,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13b6e3ea8/b5ead75fde9c4f5cb0be5ef0d4d31a51 [2020-07-11 01:08:41,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 01:08:41,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 01:08:41,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 01:08:41,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 01:08:41,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 01:08:41,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:08:41" (1/1) ... [2020-07-11 01:08:41,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e664af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:41, skipping insertion in model container [2020-07-11 01:08:41,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 01:08:41" (1/1) ... [2020-07-11 01:08:41,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 01:08:41,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 01:08:41,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:08:41,936 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 01:08:41,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 01:08:42,048 INFO L208 MainTranslator]: Completed translation [2020-07-11 01:08:42,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42 WrapperNode [2020-07-11 01:08:42,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 01:08:42,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 01:08:42,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 01:08:42,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 01:08:42,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... [2020-07-11 01:08:42,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 01:08:42,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 01:08:42,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 01:08:42,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 01:08:42,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 01:08:42,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 01:08:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 01:08:42,195 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 01:08:42,195 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-11 01:08:42,195 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-11 01:08:42,195 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-11 01:08:42,195 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-11 01:08:42,196 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-11 01:08:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-11 01:08:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-11 01:08:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-11 01:08:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-11 01:08:42,197 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-11 01:08:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-11 01:08:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-11 01:08:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-11 01:08:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-11 01:08:42,198 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-11 01:08:42,199 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-11 01:08:42,200 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-11 01:08:42,201 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-11 01:08:42,202 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-11 01:08:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-11 01:08:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-11 01:08:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-11 01:08:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-11 01:08:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-11 01:08:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-11 01:08:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-11 01:08:42,210 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-11 01:08:42,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-11 01:08:42,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-11 01:08:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-11 01:08:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 01:08:42,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 01:08:43,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 01:08:43,123 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-11 01:08:43,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:08:43 BoogieIcfgContainer [2020-07-11 01:08:43,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 01:08:43,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 01:08:43,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 01:08:43,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 01:08:43,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 01:08:41" (1/3) ... [2020-07-11 01:08:43,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794a585e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:08:43, skipping insertion in model container [2020-07-11 01:08:43,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 01:08:42" (2/3) ... [2020-07-11 01:08:43,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794a585e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 01:08:43, skipping insertion in model container [2020-07-11 01:08:43,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 01:08:43" (3/3) ... [2020-07-11 01:08:43,137 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-2.i [2020-07-11 01:08:43,148 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 01:08:43,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-11 01:08:43,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-11 01:08:43,213 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 01:08:43,214 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 01:08:43,214 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 01:08:43,214 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 01:08:43,214 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 01:08:43,215 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 01:08:43,215 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 01:08:43,215 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 01:08:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-07-11 01:08:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-11 01:08:43,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:43,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:43,246 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:43,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:43,252 INFO L82 PathProgramCache]: Analyzing trace with hash -159181327, now seen corresponding path program 1 times [2020-07-11 01:08:43,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:43,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052277024] [2020-07-11 01:08:43,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:43,504 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {101#true} is VALID [2020-07-11 01:08:43,505 INFO L280 TraceCheckUtils]: 1: Hoare triple {101#true} #valid := #valid[0 := 0]; {101#true} is VALID [2020-07-11 01:08:43,505 INFO L280 TraceCheckUtils]: 2: Hoare triple {101#true} assume 0 < #StackHeapBarrier; {101#true} is VALID [2020-07-11 01:08:43,505 INFO L280 TraceCheckUtils]: 3: Hoare triple {101#true} assume true; {101#true} is VALID [2020-07-11 01:08:43,506 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {101#true} {101#true} #196#return; {101#true} is VALID [2020-07-11 01:08:43,509 INFO L263 TraceCheckUtils]: 0: Hoare triple {101#true} call ULTIMATE.init(); {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:43,510 INFO L280 TraceCheckUtils]: 1: Hoare triple {108#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {101#true} is VALID [2020-07-11 01:08:43,510 INFO L280 TraceCheckUtils]: 2: Hoare triple {101#true} #valid := #valid[0 := 0]; {101#true} is VALID [2020-07-11 01:08:43,510 INFO L280 TraceCheckUtils]: 3: Hoare triple {101#true} assume 0 < #StackHeapBarrier; {101#true} is VALID [2020-07-11 01:08:43,511 INFO L280 TraceCheckUtils]: 4: Hoare triple {101#true} assume true; {101#true} is VALID [2020-07-11 01:08:43,511 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {101#true} {101#true} #196#return; {101#true} is VALID [2020-07-11 01:08:43,511 INFO L263 TraceCheckUtils]: 6: Hoare triple {101#true} call #t~ret17 := main(); {101#true} is VALID [2020-07-11 01:08:43,512 INFO L280 TraceCheckUtils]: 7: Hoare triple {101#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {101#true} is VALID [2020-07-11 01:08:43,512 INFO L280 TraceCheckUtils]: 8: Hoare triple {101#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {101#true} is VALID [2020-07-11 01:08:43,512 INFO L280 TraceCheckUtils]: 9: Hoare triple {101#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {101#true} is VALID [2020-07-11 01:08:43,513 INFO L280 TraceCheckUtils]: 10: Hoare triple {101#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {101#true} is VALID [2020-07-11 01:08:43,513 INFO L280 TraceCheckUtils]: 11: Hoare triple {101#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {101#true} is VALID [2020-07-11 01:08:43,513 INFO L280 TraceCheckUtils]: 12: Hoare triple {101#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {101#true} is VALID [2020-07-11 01:08:43,513 INFO L280 TraceCheckUtils]: 13: Hoare triple {101#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {101#true} is VALID [2020-07-11 01:08:43,514 INFO L280 TraceCheckUtils]: 14: Hoare triple {101#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {101#true} is VALID [2020-07-11 01:08:43,514 INFO L280 TraceCheckUtils]: 15: Hoare triple {101#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {101#true} is VALID [2020-07-11 01:08:43,515 INFO L280 TraceCheckUtils]: 16: Hoare triple {101#true} assume !true; {102#false} is VALID [2020-07-11 01:08:43,516 INFO L280 TraceCheckUtils]: 17: Hoare triple {102#false} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {102#false} is VALID [2020-07-11 01:08:43,516 INFO L280 TraceCheckUtils]: 18: Hoare triple {102#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {102#false} is VALID [2020-07-11 01:08:43,516 INFO L280 TraceCheckUtils]: 19: Hoare triple {102#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {102#false} is VALID [2020-07-11 01:08:43,517 INFO L280 TraceCheckUtils]: 20: Hoare triple {102#false} assume !false; {102#false} is VALID [2020-07-11 01:08:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:43,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052277024] [2020-07-11 01:08:43,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:43,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-11 01:08:43,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705516392] [2020-07-11 01:08:43,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-11 01:08:43,531 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:43,535 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-11 01:08:43,572 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:43,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-11 01:08:43,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:43,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-11 01:08:43,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-11 01:08:43,584 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 3 states. [2020-07-11 01:08:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:44,062 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2020-07-11 01:08:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-11 01:08:44,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-11 01:08:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:08:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2020-07-11 01:08:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-11 01:08:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2020-07-11 01:08:44,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 194 transitions. [2020-07-11 01:08:44,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:44,394 INFO L225 Difference]: With dead ends: 157 [2020-07-11 01:08:44,394 INFO L226 Difference]: Without dead ends: 74 [2020-07-11 01:08:44,398 INFO L675 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 [2020-07-11 01:08:44,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-11 01:08:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-11 01:08:44,499 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:44,500 INFO L82 GeneralOperation]: Start isEquivalent. First operand 74 states. Second operand 74 states. [2020-07-11 01:08:44,501 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-11 01:08:44,501 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-11 01:08:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:44,509 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2020-07-11 01:08:44,509 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-11 01:08:44,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:44,510 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:44,510 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-11 01:08:44,510 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-11 01:08:44,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:44,525 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2020-07-11 01:08:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-11 01:08:44,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:44,527 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:44,527 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:44,527 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-11 01:08:44,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-11 01:08:44,542 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 21 [2020-07-11 01:08:44,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:44,543 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-11 01:08:44,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-11 01:08:44,543 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 74 states and 77 transitions. [2020-07-11 01:08:44,667 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:44,667 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-11 01:08:44,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-11 01:08:44,668 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:44,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:44,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 01:08:44,670 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:44,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:44,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1476818129, now seen corresponding path program 1 times [2020-07-11 01:08:44,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:44,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414689035] [2020-07-11 01:08:44,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:44,816 INFO L280 TraceCheckUtils]: 0: Hoare triple {733#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {721#true} is VALID [2020-07-11 01:08:44,817 INFO L280 TraceCheckUtils]: 1: Hoare triple {721#true} #valid := #valid[0 := 0]; {721#true} is VALID [2020-07-11 01:08:44,817 INFO L280 TraceCheckUtils]: 2: Hoare triple {721#true} assume 0 < #StackHeapBarrier; {721#true} is VALID [2020-07-11 01:08:44,817 INFO L280 TraceCheckUtils]: 3: Hoare triple {721#true} assume true; {721#true} is VALID [2020-07-11 01:08:44,818 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {721#true} {721#true} #196#return; {721#true} is VALID [2020-07-11 01:08:44,822 INFO L263 TraceCheckUtils]: 0: Hoare triple {721#true} call ULTIMATE.init(); {733#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:44,823 INFO L280 TraceCheckUtils]: 1: Hoare triple {733#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {721#true} is VALID [2020-07-11 01:08:44,823 INFO L280 TraceCheckUtils]: 2: Hoare triple {721#true} #valid := #valid[0 := 0]; {721#true} is VALID [2020-07-11 01:08:44,823 INFO L280 TraceCheckUtils]: 3: Hoare triple {721#true} assume 0 < #StackHeapBarrier; {721#true} is VALID [2020-07-11 01:08:44,824 INFO L280 TraceCheckUtils]: 4: Hoare triple {721#true} assume true; {721#true} is VALID [2020-07-11 01:08:44,824 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {721#true} {721#true} #196#return; {721#true} is VALID [2020-07-11 01:08:44,824 INFO L263 TraceCheckUtils]: 6: Hoare triple {721#true} call #t~ret17 := main(); {721#true} is VALID [2020-07-11 01:08:44,828 INFO L280 TraceCheckUtils]: 7: Hoare triple {721#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {728#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-11 01:08:44,831 INFO L280 TraceCheckUtils]: 8: Hoare triple {728#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {729#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-11 01:08:44,831 INFO L280 TraceCheckUtils]: 9: Hoare triple {729#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {729#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-11 01:08:44,832 INFO L280 TraceCheckUtils]: 10: Hoare triple {729#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {729#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-11 01:08:44,833 INFO L280 TraceCheckUtils]: 11: Hoare triple {729#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {730#(not (= |main_#t~malloc1.base| main_~null~0.base))} is VALID [2020-07-11 01:08:44,834 INFO L280 TraceCheckUtils]: 12: Hoare triple {730#(not (= |main_#t~malloc1.base| main_~null~0.base))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,834 INFO L280 TraceCheckUtils]: 13: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,835 INFO L280 TraceCheckUtils]: 14: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,836 INFO L280 TraceCheckUtils]: 15: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,836 INFO L280 TraceCheckUtils]: 16: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,838 INFO L280 TraceCheckUtils]: 17: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} assume !(0 != #t~nondet2); {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,838 INFO L280 TraceCheckUtils]: 18: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} havoc #t~nondet2; {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,839 INFO L280 TraceCheckUtils]: 19: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {731#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-11 01:08:44,841 INFO L280 TraceCheckUtils]: 20: Hoare triple {731#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {732#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:08:44,843 INFO L280 TraceCheckUtils]: 21: Hoare triple {732#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {722#false} is VALID [2020-07-11 01:08:44,843 INFO L280 TraceCheckUtils]: 22: Hoare triple {722#false} assume !false; {722#false} is VALID [2020-07-11 01:08:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:44,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414689035] [2020-07-11 01:08:44,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:44,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-11 01:08:44,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791173420] [2020-07-11 01:08:44,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-07-11 01:08:44,847 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:44,847 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-11 01:08:44,886 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:44,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-11 01:08:44,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:44,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-11 01:08:44,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-11 01:08:44,888 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 8 states. [2020-07-11 01:08:45,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:45,902 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2020-07-11 01:08:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-11 01:08:45,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-07-11 01:08:45,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:08:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2020-07-11 01:08:45,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 01:08:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2020-07-11 01:08:45,913 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 97 transitions. [2020-07-11 01:08:46,039 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:46,045 INFO L225 Difference]: With dead ends: 92 [2020-07-11 01:08:46,045 INFO L226 Difference]: Without dead ends: 90 [2020-07-11 01:08:46,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-07-11 01:08:46,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-07-11 01:08:46,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 72. [2020-07-11 01:08:46,252 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:46,252 INFO L82 GeneralOperation]: Start isEquivalent. First operand 90 states. Second operand 72 states. [2020-07-11 01:08:46,252 INFO L74 IsIncluded]: Start isIncluded. First operand 90 states. Second operand 72 states. [2020-07-11 01:08:46,252 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 72 states. [2020-07-11 01:08:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:46,262 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-07-11 01:08:46,262 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2020-07-11 01:08:46,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:46,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:46,264 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 90 states. [2020-07-11 01:08:46,264 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 90 states. [2020-07-11 01:08:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:46,269 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-07-11 01:08:46,269 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2020-07-11 01:08:46,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:46,270 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:46,270 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:46,270 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-11 01:08:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2020-07-11 01:08:46,274 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 23 [2020-07-11 01:08:46,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:46,274 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2020-07-11 01:08:46,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-11 01:08:46,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 72 states and 75 transitions. [2020-07-11 01:08:46,393 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 75 edges. 75 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:46,394 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2020-07-11 01:08:46,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-11 01:08:46,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:46,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:46,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 01:08:46,396 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:46,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:46,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1518762392, now seen corresponding path program 1 times [2020-07-11 01:08:46,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:46,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776549801] [2020-07-11 01:08:46,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:46,634 INFO L280 TraceCheckUtils]: 0: Hoare triple {1265#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1252#true} is VALID [2020-07-11 01:08:46,634 INFO L280 TraceCheckUtils]: 1: Hoare triple {1252#true} #valid := #valid[0 := 0]; {1252#true} is VALID [2020-07-11 01:08:46,634 INFO L280 TraceCheckUtils]: 2: Hoare triple {1252#true} assume 0 < #StackHeapBarrier; {1252#true} is VALID [2020-07-11 01:08:46,635 INFO L280 TraceCheckUtils]: 3: Hoare triple {1252#true} assume true; {1252#true} is VALID [2020-07-11 01:08:46,635 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1252#true} {1252#true} #196#return; {1252#true} is VALID [2020-07-11 01:08:46,636 INFO L263 TraceCheckUtils]: 0: Hoare triple {1252#true} call ULTIMATE.init(); {1265#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:46,636 INFO L280 TraceCheckUtils]: 1: Hoare triple {1265#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1252#true} is VALID [2020-07-11 01:08:46,636 INFO L280 TraceCheckUtils]: 2: Hoare triple {1252#true} #valid := #valid[0 := 0]; {1252#true} is VALID [2020-07-11 01:08:46,637 INFO L280 TraceCheckUtils]: 3: Hoare triple {1252#true} assume 0 < #StackHeapBarrier; {1252#true} is VALID [2020-07-11 01:08:46,637 INFO L280 TraceCheckUtils]: 4: Hoare triple {1252#true} assume true; {1252#true} is VALID [2020-07-11 01:08:46,637 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1252#true} {1252#true} #196#return; {1252#true} is VALID [2020-07-11 01:08:46,638 INFO L263 TraceCheckUtils]: 6: Hoare triple {1252#true} call #t~ret17 := main(); {1252#true} is VALID [2020-07-11 01:08:46,638 INFO L280 TraceCheckUtils]: 7: Hoare triple {1252#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {1259#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:08:46,639 INFO L280 TraceCheckUtils]: 8: Hoare triple {1259#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {1252#true} is VALID [2020-07-11 01:08:46,639 INFO L280 TraceCheckUtils]: 9: Hoare triple {1252#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {1252#true} is VALID [2020-07-11 01:08:46,639 INFO L280 TraceCheckUtils]: 10: Hoare triple {1252#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {1252#true} is VALID [2020-07-11 01:08:46,640 INFO L280 TraceCheckUtils]: 11: Hoare triple {1252#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {1260#(= 0 |main_#t~malloc1.offset|)} is VALID [2020-07-11 01:08:46,640 INFO L280 TraceCheckUtils]: 12: Hoare triple {1260#(= 0 |main_#t~malloc1.offset|)} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {1261#(= 0 main_~list~0.offset)} is VALID [2020-07-11 01:08:46,641 INFO L280 TraceCheckUtils]: 13: Hoare triple {1261#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {1261#(= 0 main_~list~0.offset)} is VALID [2020-07-11 01:08:46,642 INFO L280 TraceCheckUtils]: 14: Hoare triple {1261#(= 0 main_~list~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,643 INFO L280 TraceCheckUtils]: 15: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,644 INFO L280 TraceCheckUtils]: 16: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,645 INFO L280 TraceCheckUtils]: 17: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet2); {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,646 INFO L280 TraceCheckUtils]: 18: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,646 INFO L280 TraceCheckUtils]: 19: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:46,647 INFO L280 TraceCheckUtils]: 20: Hoare triple {1262#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:46,648 INFO L280 TraceCheckUtils]: 21: Hoare triple {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:46,649 INFO L280 TraceCheckUtils]: 22: Hoare triple {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:46,649 INFO L280 TraceCheckUtils]: 23: Hoare triple {1263#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {1264#(= ~unnamed1~0~BLACK |main_#t~mem8|)} is VALID [2020-07-11 01:08:46,650 INFO L280 TraceCheckUtils]: 24: Hoare triple {1264#(= ~unnamed1~0~BLACK |main_#t~mem8|)} assume !(~unnamed1~0~BLACK == #t~mem8); {1253#false} is VALID [2020-07-11 01:08:46,650 INFO L280 TraceCheckUtils]: 25: Hoare triple {1253#false} havoc #t~mem8; {1253#false} is VALID [2020-07-11 01:08:46,651 INFO L280 TraceCheckUtils]: 26: Hoare triple {1253#false} assume !false; {1253#false} is VALID [2020-07-11 01:08:46,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:46,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776549801] [2020-07-11 01:08:46,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:46,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-11 01:08:46,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560789018] [2020-07-11 01:08:46,654 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-11 01:08:46,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:46,655 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-11 01:08:46,695 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:46,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-11 01:08:46,696 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:46,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-11 01:08:46,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-11 01:08:46,696 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 9 states. [2020-07-11 01:08:48,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:48,027 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2020-07-11 01:08:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-11 01:08:48,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-07-11 01:08:48,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 01:08:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 126 transitions. [2020-07-11 01:08:48,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 01:08:48,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 126 transitions. [2020-07-11 01:08:48,038 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 126 transitions. [2020-07-11 01:08:48,207 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:48,212 INFO L225 Difference]: With dead ends: 120 [2020-07-11 01:08:48,222 INFO L226 Difference]: Without dead ends: 117 [2020-07-11 01:08:48,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-11 01:08:48,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-07-11 01:08:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 81. [2020-07-11 01:08:48,564 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:48,564 INFO L82 GeneralOperation]: Start isEquivalent. First operand 117 states. Second operand 81 states. [2020-07-11 01:08:48,565 INFO L74 IsIncluded]: Start isIncluded. First operand 117 states. Second operand 81 states. [2020-07-11 01:08:48,565 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 81 states. [2020-07-11 01:08:48,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:48,571 INFO L93 Difference]: Finished difference Result 117 states and 123 transitions. [2020-07-11 01:08:48,571 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 123 transitions. [2020-07-11 01:08:48,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:48,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:48,572 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 117 states. [2020-07-11 01:08:48,573 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 117 states. [2020-07-11 01:08:48,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:48,578 INFO L93 Difference]: Finished difference Result 117 states and 123 transitions. [2020-07-11 01:08:48,578 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 123 transitions. [2020-07-11 01:08:48,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:48,579 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:48,579 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:48,579 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-11 01:08:48,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 85 transitions. [2020-07-11 01:08:48,583 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 85 transitions. Word has length 27 [2020-07-11 01:08:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:48,583 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 85 transitions. [2020-07-11 01:08:48,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-11 01:08:48,583 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 85 transitions. [2020-07-11 01:08:48,749 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 85 transitions. [2020-07-11 01:08:48,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-11 01:08:48,751 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:48,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:48,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-11 01:08:48,752 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:48,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:48,752 INFO L82 PathProgramCache]: Analyzing trace with hash 2047332937, now seen corresponding path program 1 times [2020-07-11 01:08:48,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:48,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396069406] [2020-07-11 01:08:48,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:49,026 INFO L280 TraceCheckUtils]: 0: Hoare triple {1928#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1918#true} is VALID [2020-07-11 01:08:49,026 INFO L280 TraceCheckUtils]: 1: Hoare triple {1918#true} #valid := #valid[0 := 0]; {1918#true} is VALID [2020-07-11 01:08:49,026 INFO L280 TraceCheckUtils]: 2: Hoare triple {1918#true} assume 0 < #StackHeapBarrier; {1918#true} is VALID [2020-07-11 01:08:49,027 INFO L280 TraceCheckUtils]: 3: Hoare triple {1918#true} assume true; {1918#true} is VALID [2020-07-11 01:08:49,027 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1918#true} {1918#true} #196#return; {1918#true} is VALID [2020-07-11 01:08:49,029 INFO L263 TraceCheckUtils]: 0: Hoare triple {1918#true} call ULTIMATE.init(); {1928#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:49,029 INFO L280 TraceCheckUtils]: 1: Hoare triple {1928#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1918#true} is VALID [2020-07-11 01:08:49,029 INFO L280 TraceCheckUtils]: 2: Hoare triple {1918#true} #valid := #valid[0 := 0]; {1918#true} is VALID [2020-07-11 01:08:49,030 INFO L280 TraceCheckUtils]: 3: Hoare triple {1918#true} assume 0 < #StackHeapBarrier; {1918#true} is VALID [2020-07-11 01:08:49,030 INFO L280 TraceCheckUtils]: 4: Hoare triple {1918#true} assume true; {1918#true} is VALID [2020-07-11 01:08:49,030 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1918#true} {1918#true} #196#return; {1918#true} is VALID [2020-07-11 01:08:49,030 INFO L263 TraceCheckUtils]: 6: Hoare triple {1918#true} call #t~ret17 := main(); {1918#true} is VALID [2020-07-11 01:08:49,031 INFO L280 TraceCheckUtils]: 7: Hoare triple {1918#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {1918#true} is VALID [2020-07-11 01:08:49,031 INFO L280 TraceCheckUtils]: 8: Hoare triple {1918#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {1918#true} is VALID [2020-07-11 01:08:49,031 INFO L280 TraceCheckUtils]: 9: Hoare triple {1918#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {1918#true} is VALID [2020-07-11 01:08:49,032 INFO L280 TraceCheckUtils]: 10: Hoare triple {1918#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {1918#true} is VALID [2020-07-11 01:08:49,032 INFO L280 TraceCheckUtils]: 11: Hoare triple {1918#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {1918#true} is VALID [2020-07-11 01:08:49,032 INFO L280 TraceCheckUtils]: 12: Hoare triple {1918#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {1918#true} is VALID [2020-07-11 01:08:49,032 INFO L280 TraceCheckUtils]: 13: Hoare triple {1918#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {1918#true} is VALID [2020-07-11 01:08:49,033 INFO L280 TraceCheckUtils]: 14: Hoare triple {1918#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {1918#true} is VALID [2020-07-11 01:08:49,033 INFO L280 TraceCheckUtils]: 15: Hoare triple {1918#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1918#true} is VALID [2020-07-11 01:08:49,033 INFO L280 TraceCheckUtils]: 16: Hoare triple {1918#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1918#true} is VALID [2020-07-11 01:08:49,033 INFO L280 TraceCheckUtils]: 17: Hoare triple {1918#true} assume !(0 != #t~nondet2); {1918#true} is VALID [2020-07-11 01:08:49,034 INFO L280 TraceCheckUtils]: 18: Hoare triple {1918#true} havoc #t~nondet2; {1918#true} is VALID [2020-07-11 01:08:49,034 INFO L280 TraceCheckUtils]: 19: Hoare triple {1918#true} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {1918#true} is VALID [2020-07-11 01:08:49,034 INFO L280 TraceCheckUtils]: 20: Hoare triple {1918#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1918#true} is VALID [2020-07-11 01:08:49,034 INFO L280 TraceCheckUtils]: 21: Hoare triple {1918#true} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {1918#true} is VALID [2020-07-11 01:08:49,035 INFO L280 TraceCheckUtils]: 22: Hoare triple {1918#true} goto; {1918#true} is VALID [2020-07-11 01:08:49,036 INFO L280 TraceCheckUtils]: 23: Hoare triple {1918#true} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {1925#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) |main_#t~mem8|)} is VALID [2020-07-11 01:08:49,037 INFO L280 TraceCheckUtils]: 24: Hoare triple {1925#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) |main_#t~mem8|)} assume !!(~unnamed1~0~BLACK == #t~mem8); {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:49,038 INFO L280 TraceCheckUtils]: 25: Hoare triple {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} havoc #t~mem8; {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:49,038 INFO L280 TraceCheckUtils]: 26: Hoare triple {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:49,039 INFO L280 TraceCheckUtils]: 27: Hoare triple {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:49,040 INFO L280 TraceCheckUtils]: 28: Hoare triple {1926#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {1927#(= ~unnamed1~0~BLACK |main_#t~mem9|)} is VALID [2020-07-11 01:08:49,040 INFO L280 TraceCheckUtils]: 29: Hoare triple {1927#(= ~unnamed1~0~BLACK |main_#t~mem9|)} assume ~unnamed1~0~RED == #t~mem9; {1919#false} is VALID [2020-07-11 01:08:49,040 INFO L280 TraceCheckUtils]: 30: Hoare triple {1919#false} havoc #t~mem9; {1919#false} is VALID [2020-07-11 01:08:49,041 INFO L280 TraceCheckUtils]: 31: Hoare triple {1919#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1037 {1919#false} is VALID [2020-07-11 01:08:49,041 INFO L280 TraceCheckUtils]: 32: Hoare triple {1919#false} ~end~0.base, ~end~0.offset := #t~mem10.base, #t~mem10.offset; {1919#false} is VALID [2020-07-11 01:08:49,041 INFO L280 TraceCheckUtils]: 33: Hoare triple {1919#false} havoc #t~mem10.base, #t~mem10.offset; {1919#false} is VALID [2020-07-11 01:08:49,042 INFO L280 TraceCheckUtils]: 34: Hoare triple {1919#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {1919#false} is VALID [2020-07-11 01:08:49,042 INFO L280 TraceCheckUtils]: 35: Hoare triple {1919#false} assume !false; {1919#false} is VALID [2020-07-11 01:08:49,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:49,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396069406] [2020-07-11 01:08:49,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 01:08:49,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-11 01:08:49,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521208834] [2020-07-11 01:08:49,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-07-11 01:08:49,046 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:49,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-11 01:08:49,077 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:49,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-11 01:08:49,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:49,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-11 01:08:49,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-11 01:08:49,078 INFO L87 Difference]: Start difference. First operand 81 states and 85 transitions. Second operand 6 states. [2020-07-11 01:08:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:49,985 INFO L93 Difference]: Finished difference Result 114 states and 120 transitions. [2020-07-11 01:08:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-11 01:08:49,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-07-11 01:08:49,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:49,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:08:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2020-07-11 01:08:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 01:08:49,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 115 transitions. [2020-07-11 01:08:49,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 115 transitions. [2020-07-11 01:08:50,106 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 115 edges. 115 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:50,108 INFO L225 Difference]: With dead ends: 114 [2020-07-11 01:08:50,109 INFO L226 Difference]: Without dead ends: 92 [2020-07-11 01:08:50,109 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-11 01:08:50,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-07-11 01:08:50,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2020-07-11 01:08:50,427 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:50,427 INFO L82 GeneralOperation]: Start isEquivalent. First operand 92 states. Second operand 84 states. [2020-07-11 01:08:50,427 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 84 states. [2020-07-11 01:08:50,428 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 84 states. [2020-07-11 01:08:50,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:50,432 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2020-07-11 01:08:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2020-07-11 01:08:50,433 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:50,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:50,433 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 92 states. [2020-07-11 01:08:50,433 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 92 states. [2020-07-11 01:08:50,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:50,436 INFO L93 Difference]: Finished difference Result 92 states and 96 transitions. [2020-07-11 01:08:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 96 transitions. [2020-07-11 01:08:50,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:50,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:50,437 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:50,437 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-07-11 01:08:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2020-07-11 01:08:50,441 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 36 [2020-07-11 01:08:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:50,441 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2020-07-11 01:08:50,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-11 01:08:50,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 84 states and 88 transitions. [2020-07-11 01:08:50,614 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2020-07-11 01:08:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-11 01:08:50,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:50,616 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:50,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-11 01:08:50,616 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:50,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:50,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1237644091, now seen corresponding path program 1 times [2020-07-11 01:08:50,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:50,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530987196] [2020-07-11 01:08:50,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:51,214 INFO L280 TraceCheckUtils]: 0: Hoare triple {2535#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2515#true} is VALID [2020-07-11 01:08:51,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {2515#true} #valid := #valid[0 := 0]; {2515#true} is VALID [2020-07-11 01:08:51,215 INFO L280 TraceCheckUtils]: 2: Hoare triple {2515#true} assume 0 < #StackHeapBarrier; {2515#true} is VALID [2020-07-11 01:08:51,215 INFO L280 TraceCheckUtils]: 3: Hoare triple {2515#true} assume true; {2515#true} is VALID [2020-07-11 01:08:51,215 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2515#true} {2515#true} #196#return; {2515#true} is VALID [2020-07-11 01:08:51,217 INFO L263 TraceCheckUtils]: 0: Hoare triple {2515#true} call ULTIMATE.init(); {2535#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:51,217 INFO L280 TraceCheckUtils]: 1: Hoare triple {2535#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2515#true} is VALID [2020-07-11 01:08:51,217 INFO L280 TraceCheckUtils]: 2: Hoare triple {2515#true} #valid := #valid[0 := 0]; {2515#true} is VALID [2020-07-11 01:08:51,217 INFO L280 TraceCheckUtils]: 3: Hoare triple {2515#true} assume 0 < #StackHeapBarrier; {2515#true} is VALID [2020-07-11 01:08:51,218 INFO L280 TraceCheckUtils]: 4: Hoare triple {2515#true} assume true; {2515#true} is VALID [2020-07-11 01:08:51,218 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2515#true} {2515#true} #196#return; {2515#true} is VALID [2020-07-11 01:08:51,218 INFO L263 TraceCheckUtils]: 6: Hoare triple {2515#true} call #t~ret17 := main(); {2515#true} is VALID [2020-07-11 01:08:51,218 INFO L280 TraceCheckUtils]: 7: Hoare triple {2515#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {2522#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:08:51,219 INFO L280 TraceCheckUtils]: 8: Hoare triple {2522#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {2515#true} is VALID [2020-07-11 01:08:51,219 INFO L280 TraceCheckUtils]: 9: Hoare triple {2515#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {2515#true} is VALID [2020-07-11 01:08:51,219 INFO L280 TraceCheckUtils]: 10: Hoare triple {2515#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {2515#true} is VALID [2020-07-11 01:08:51,220 INFO L280 TraceCheckUtils]: 11: Hoare triple {2515#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {2523#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-11 01:08:51,220 INFO L280 TraceCheckUtils]: 12: Hoare triple {2523#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {2524#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:08:51,221 INFO L280 TraceCheckUtils]: 13: Hoare triple {2524#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {2524#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:08:51,222 INFO L280 TraceCheckUtils]: 14: Hoare triple {2524#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {2525#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,223 INFO L280 TraceCheckUtils]: 15: Hoare triple {2525#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,223 INFO L280 TraceCheckUtils]: 16: Hoare triple {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,224 INFO L280 TraceCheckUtils]: 17: Hoare triple {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume !!(0 != #t~nondet2); {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,225 INFO L280 TraceCheckUtils]: 18: Hoare triple {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} havoc #t~nondet2; {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,225 INFO L280 TraceCheckUtils]: 19: Hoare triple {2526#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {2527#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,226 INFO L280 TraceCheckUtils]: 20: Hoare triple {2527#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {2528#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:51,227 INFO L280 TraceCheckUtils]: 21: Hoare triple {2528#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {2529#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,228 INFO L280 TraceCheckUtils]: 22: Hoare triple {2529#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {2530#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,228 INFO L280 TraceCheckUtils]: 23: Hoare triple {2530#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {2530#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,229 INFO L280 TraceCheckUtils]: 24: Hoare triple {2530#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,230 INFO L280 TraceCheckUtils]: 25: Hoare triple {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,232 INFO L280 TraceCheckUtils]: 26: Hoare triple {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} assume 0 != #t~nondet5; {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,233 INFO L280 TraceCheckUtils]: 27: Hoare triple {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,234 INFO L280 TraceCheckUtils]: 28: Hoare triple {2531#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,238 INFO L280 TraceCheckUtils]: 29: Hoare triple {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,239 INFO L280 TraceCheckUtils]: 30: Hoare triple {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet2); {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,239 INFO L280 TraceCheckUtils]: 31: Hoare triple {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,240 INFO L280 TraceCheckUtils]: 32: Hoare triple {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:51,240 INFO L280 TraceCheckUtils]: 33: Hoare triple {2532#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:51,241 INFO L280 TraceCheckUtils]: 34: Hoare triple {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:51,241 INFO L280 TraceCheckUtils]: 35: Hoare triple {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:51,242 INFO L280 TraceCheckUtils]: 36: Hoare triple {2533#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {2534#(= ~unnamed1~0~BLACK |main_#t~mem8|)} is VALID [2020-07-11 01:08:51,242 INFO L280 TraceCheckUtils]: 37: Hoare triple {2534#(= ~unnamed1~0~BLACK |main_#t~mem8|)} assume !(~unnamed1~0~BLACK == #t~mem8); {2516#false} is VALID [2020-07-11 01:08:51,242 INFO L280 TraceCheckUtils]: 38: Hoare triple {2516#false} havoc #t~mem8; {2516#false} is VALID [2020-07-11 01:08:51,243 INFO L280 TraceCheckUtils]: 39: Hoare triple {2516#false} assume !false; {2516#false} is VALID [2020-07-11 01:08:51,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:51,249 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530987196] [2020-07-11 01:08:51,250 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:08:51,250 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-07-11 01:08:51,250 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10392901] [2020-07-11 01:08:51,250 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2020-07-11 01:08:51,251 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:51,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-11 01:08:51,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:51,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-11 01:08:51,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:51,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-11 01:08:51,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2020-07-11 01:08:51,310 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand 16 states. [2020-07-11 01:08:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:54,536 INFO L93 Difference]: Finished difference Result 155 states and 162 transitions. [2020-07-11 01:08:54,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-11 01:08:54,537 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 40 [2020-07-11 01:08:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-11 01:08:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 157 transitions. [2020-07-11 01:08:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-11 01:08:54,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 157 transitions. [2020-07-11 01:08:54,550 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 157 transitions. [2020-07-11 01:08:54,805 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 157 edges. 157 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:54,809 INFO L225 Difference]: With dead ends: 155 [2020-07-11 01:08:54,809 INFO L226 Difference]: Without dead ends: 152 [2020-07-11 01:08:54,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2020-07-11 01:08:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-11 01:08:55,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 97. [2020-07-11 01:08:55,290 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:55,290 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states. Second operand 97 states. [2020-07-11 01:08:55,290 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states. Second operand 97 states. [2020-07-11 01:08:55,290 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 97 states. [2020-07-11 01:08:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:55,296 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2020-07-11 01:08:55,296 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 159 transitions. [2020-07-11 01:08:55,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:55,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:55,297 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 152 states. [2020-07-11 01:08:55,297 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 152 states. [2020-07-11 01:08:55,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:55,302 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2020-07-11 01:08:55,303 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 159 transitions. [2020-07-11 01:08:55,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:55,303 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:55,303 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:55,304 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:55,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-11 01:08:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 103 transitions. [2020-07-11 01:08:55,307 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 103 transitions. Word has length 40 [2020-07-11 01:08:55,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:55,307 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 103 transitions. [2020-07-11 01:08:55,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-11 01:08:55,308 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states and 103 transitions. [2020-07-11 01:08:55,537 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 103 edges. 103 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:55,537 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 103 transitions. [2020-07-11 01:08:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-11 01:08:55,538 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:55,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:55,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-11 01:08:55,539 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:55,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:55,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1411163060, now seen corresponding path program 1 times [2020-07-11 01:08:55,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:55,540 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262112686] [2020-07-11 01:08:55,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:55,726 INFO L280 TraceCheckUtils]: 0: Hoare triple {3385#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3374#true} is VALID [2020-07-11 01:08:55,726 INFO L280 TraceCheckUtils]: 1: Hoare triple {3374#true} #valid := #valid[0 := 0]; {3374#true} is VALID [2020-07-11 01:08:55,726 INFO L280 TraceCheckUtils]: 2: Hoare triple {3374#true} assume 0 < #StackHeapBarrier; {3374#true} is VALID [2020-07-11 01:08:55,727 INFO L280 TraceCheckUtils]: 3: Hoare triple {3374#true} assume true; {3374#true} is VALID [2020-07-11 01:08:55,727 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3374#true} {3374#true} #196#return; {3374#true} is VALID [2020-07-11 01:08:55,728 INFO L263 TraceCheckUtils]: 0: Hoare triple {3374#true} call ULTIMATE.init(); {3385#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:55,728 INFO L280 TraceCheckUtils]: 1: Hoare triple {3385#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3374#true} is VALID [2020-07-11 01:08:55,728 INFO L280 TraceCheckUtils]: 2: Hoare triple {3374#true} #valid := #valid[0 := 0]; {3374#true} is VALID [2020-07-11 01:08:55,728 INFO L280 TraceCheckUtils]: 3: Hoare triple {3374#true} assume 0 < #StackHeapBarrier; {3374#true} is VALID [2020-07-11 01:08:55,728 INFO L280 TraceCheckUtils]: 4: Hoare triple {3374#true} assume true; {3374#true} is VALID [2020-07-11 01:08:55,729 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3374#true} {3374#true} #196#return; {3374#true} is VALID [2020-07-11 01:08:55,729 INFO L263 TraceCheckUtils]: 6: Hoare triple {3374#true} call #t~ret17 := main(); {3374#true} is VALID [2020-07-11 01:08:55,729 INFO L280 TraceCheckUtils]: 7: Hoare triple {3374#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {3374#true} is VALID [2020-07-11 01:08:55,729 INFO L280 TraceCheckUtils]: 8: Hoare triple {3374#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3374#true} is VALID [2020-07-11 01:08:55,730 INFO L280 TraceCheckUtils]: 9: Hoare triple {3374#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {3374#true} is VALID [2020-07-11 01:08:55,730 INFO L280 TraceCheckUtils]: 10: Hoare triple {3374#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {3374#true} is VALID [2020-07-11 01:08:55,730 INFO L280 TraceCheckUtils]: 11: Hoare triple {3374#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {3374#true} is VALID [2020-07-11 01:08:55,730 INFO L280 TraceCheckUtils]: 12: Hoare triple {3374#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3374#true} is VALID [2020-07-11 01:08:55,732 INFO L280 TraceCheckUtils]: 13: Hoare triple {3374#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,733 INFO L280 TraceCheckUtils]: 14: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,735 INFO L280 TraceCheckUtils]: 15: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,738 INFO L280 TraceCheckUtils]: 16: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,740 INFO L280 TraceCheckUtils]: 17: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} assume !(0 != #t~nondet2); {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,743 INFO L280 TraceCheckUtils]: 18: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} havoc #t~nondet2; {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,744 INFO L280 TraceCheckUtils]: 19: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:08:55,745 INFO L280 TraceCheckUtils]: 20: Hoare triple {3381#(and (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,746 INFO L280 TraceCheckUtils]: 21: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,747 INFO L280 TraceCheckUtils]: 22: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} goto; {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,748 INFO L280 TraceCheckUtils]: 23: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,749 INFO L280 TraceCheckUtils]: 24: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !!(~unnamed1~0~BLACK == #t~mem8); {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,750 INFO L280 TraceCheckUtils]: 25: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} havoc #t~mem8; {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,750 INFO L280 TraceCheckUtils]: 26: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} goto; {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,751 INFO L280 TraceCheckUtils]: 27: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,752 INFO L280 TraceCheckUtils]: 28: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,753 INFO L280 TraceCheckUtils]: 29: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !(~unnamed1~0~RED == #t~mem9); {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,753 INFO L280 TraceCheckUtils]: 30: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} havoc #t~mem9; {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:08:55,754 INFO L280 TraceCheckUtils]: 31: Hoare triple {3382#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} SUMMARY for call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1035-4 {3383#(and (= |main_#t~mem12.offset| main_~null~0.offset) (= |main_#t~mem12.base| main_~null~0.base))} is VALID [2020-07-11 01:08:55,755 INFO L280 TraceCheckUtils]: 32: Hoare triple {3383#(and (= |main_#t~mem12.offset| main_~null~0.offset) (= |main_#t~mem12.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem12.base, #t~mem12.offset; {3384#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:08:55,756 INFO L280 TraceCheckUtils]: 33: Hoare triple {3384#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} havoc #t~mem12.base, #t~mem12.offset; {3384#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:08:55,756 INFO L280 TraceCheckUtils]: 34: Hoare triple {3384#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {3375#false} is VALID [2020-07-11 01:08:55,757 INFO L280 TraceCheckUtils]: 35: Hoare triple {3375#false} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {3375#false} is VALID [2020-07-11 01:08:55,757 INFO L280 TraceCheckUtils]: 36: Hoare triple {3375#false} assume ~unnamed1~0~RED == #t~mem9; {3375#false} is VALID [2020-07-11 01:08:55,757 INFO L280 TraceCheckUtils]: 37: Hoare triple {3375#false} havoc #t~mem9; {3375#false} is VALID [2020-07-11 01:08:55,757 INFO L280 TraceCheckUtils]: 38: Hoare triple {3375#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1037 {3375#false} is VALID [2020-07-11 01:08:55,758 INFO L280 TraceCheckUtils]: 39: Hoare triple {3375#false} ~end~0.base, ~end~0.offset := #t~mem10.base, #t~mem10.offset; {3375#false} is VALID [2020-07-11 01:08:55,758 INFO L280 TraceCheckUtils]: 40: Hoare triple {3375#false} havoc #t~mem10.base, #t~mem10.offset; {3375#false} is VALID [2020-07-11 01:08:55,758 INFO L280 TraceCheckUtils]: 41: Hoare triple {3375#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {3375#false} is VALID [2020-07-11 01:08:55,758 INFO L280 TraceCheckUtils]: 42: Hoare triple {3375#false} assume !false; {3375#false} is VALID [2020-07-11 01:08:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:55,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262112686] [2020-07-11 01:08:55,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:08:55,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-11 01:08:55,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695674043] [2020-07-11 01:08:55,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-07-11 01:08:55,765 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:55,765 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 01:08:55,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:55,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 01:08:55,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:55,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 01:08:55,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-11 01:08:55,814 INFO L87 Difference]: Start difference. First operand 97 states and 103 transitions. Second operand 7 states. [2020-07-11 01:08:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:57,128 INFO L93 Difference]: Finished difference Result 136 states and 143 transitions. [2020-07-11 01:08:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-11 01:08:57,128 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-07-11 01:08:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:08:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 01:08:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 121 transitions. [2020-07-11 01:08:57,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 01:08:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 121 transitions. [2020-07-11 01:08:57,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 121 transitions. [2020-07-11 01:08:57,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 121 edges. 121 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:57,257 INFO L225 Difference]: With dead ends: 136 [2020-07-11 01:08:57,257 INFO L226 Difference]: Without dead ends: 97 [2020-07-11 01:08:57,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-07-11 01:08:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-07-11 01:08:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-07-11 01:08:57,722 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:08:57,722 INFO L82 GeneralOperation]: Start isEquivalent. First operand 97 states. Second operand 97 states. [2020-07-11 01:08:57,722 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-11 01:08:57,722 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-11 01:08:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:57,725 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2020-07-11 01:08:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2020-07-11 01:08:57,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:57,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:57,726 INFO L74 IsIncluded]: Start isIncluded. First operand 97 states. Second operand 97 states. [2020-07-11 01:08:57,726 INFO L87 Difference]: Start difference. First operand 97 states. Second operand 97 states. [2020-07-11 01:08:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:08:57,729 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2020-07-11 01:08:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2020-07-11 01:08:57,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:08:57,730 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:08:57,730 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:08:57,730 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:08:57,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-11 01:08:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2020-07-11 01:08:57,733 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 43 [2020-07-11 01:08:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:08:57,733 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2020-07-11 01:08:57,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 01:08:57,734 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 97 states and 102 transitions. [2020-07-11 01:08:57,962 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:57,963 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2020-07-11 01:08:57,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-11 01:08:57,963 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:08:57,964 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:08:57,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-11 01:08:57,964 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:08:57,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:08:57,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1215747511, now seen corresponding path program 1 times [2020-07-11 01:08:57,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:08:57,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [959220113] [2020-07-11 01:08:57,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:08:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:08:58,755 INFO L280 TraceCheckUtils]: 0: Hoare triple {4080#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4056#true} is VALID [2020-07-11 01:08:58,755 INFO L280 TraceCheckUtils]: 1: Hoare triple {4056#true} #valid := #valid[0 := 0]; {4056#true} is VALID [2020-07-11 01:08:58,756 INFO L280 TraceCheckUtils]: 2: Hoare triple {4056#true} assume 0 < #StackHeapBarrier; {4056#true} is VALID [2020-07-11 01:08:58,756 INFO L280 TraceCheckUtils]: 3: Hoare triple {4056#true} assume true; {4056#true} is VALID [2020-07-11 01:08:58,756 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4056#true} {4056#true} #196#return; {4056#true} is VALID [2020-07-11 01:08:58,760 INFO L263 TraceCheckUtils]: 0: Hoare triple {4056#true} call ULTIMATE.init(); {4080#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:08:58,761 INFO L280 TraceCheckUtils]: 1: Hoare triple {4080#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4056#true} is VALID [2020-07-11 01:08:58,761 INFO L280 TraceCheckUtils]: 2: Hoare triple {4056#true} #valid := #valid[0 := 0]; {4056#true} is VALID [2020-07-11 01:08:58,761 INFO L280 TraceCheckUtils]: 3: Hoare triple {4056#true} assume 0 < #StackHeapBarrier; {4056#true} is VALID [2020-07-11 01:08:58,761 INFO L280 TraceCheckUtils]: 4: Hoare triple {4056#true} assume true; {4056#true} is VALID [2020-07-11 01:08:58,761 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4056#true} {4056#true} #196#return; {4056#true} is VALID [2020-07-11 01:08:58,762 INFO L263 TraceCheckUtils]: 6: Hoare triple {4056#true} call #t~ret17 := main(); {4056#true} is VALID [2020-07-11 01:08:58,762 INFO L280 TraceCheckUtils]: 7: Hoare triple {4056#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {4063#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:08:58,762 INFO L280 TraceCheckUtils]: 8: Hoare triple {4063#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {4056#true} is VALID [2020-07-11 01:08:58,763 INFO L280 TraceCheckUtils]: 9: Hoare triple {4056#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {4056#true} is VALID [2020-07-11 01:08:58,763 INFO L280 TraceCheckUtils]: 10: Hoare triple {4056#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {4056#true} is VALID [2020-07-11 01:08:58,764 INFO L280 TraceCheckUtils]: 11: Hoare triple {4056#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {4064#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-11 01:08:58,764 INFO L280 TraceCheckUtils]: 12: Hoare triple {4064#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {4065#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-11 01:08:58,765 INFO L280 TraceCheckUtils]: 13: Hoare triple {4065#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {4065#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-11 01:08:58,765 INFO L280 TraceCheckUtils]: 14: Hoare triple {4065#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {4066#(and (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,766 INFO L280 TraceCheckUtils]: 15: Hoare triple {4066#(and (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,767 INFO L280 TraceCheckUtils]: 16: Hoare triple {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,767 INFO L280 TraceCheckUtils]: 17: Hoare triple {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume !!(0 != #t~nondet2); {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,768 INFO L280 TraceCheckUtils]: 18: Hoare triple {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} havoc #t~nondet2; {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,769 INFO L280 TraceCheckUtils]: 19: Hoare triple {4067#(and (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {4068#(and (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,770 INFO L280 TraceCheckUtils]: 20: Hoare triple {4068#(and (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {4069#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:08:58,770 INFO L280 TraceCheckUtils]: 21: Hoare triple {4069#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {4070#(and (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,771 INFO L280 TraceCheckUtils]: 22: Hoare triple {4070#(and (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,772 INFO L280 TraceCheckUtils]: 23: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,773 INFO L280 TraceCheckUtils]: 24: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,774 INFO L280 TraceCheckUtils]: 25: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,774 INFO L280 TraceCheckUtils]: 26: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet5); {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,775 INFO L280 TraceCheckUtils]: 27: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,776 INFO L280 TraceCheckUtils]: 28: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~RED, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1018 {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,780 INFO L280 TraceCheckUtils]: 29: Hoare triple {4071#(and (not (= main_~list~0.base main_~end~0.base)) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call #t~malloc6.base, #t~malloc6.offset := #Ultimate.allocOnHeap(8); srcloc: L1018-1 {4072#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~malloc6.base| main_~list~0.base)))} is VALID [2020-07-11 01:08:58,784 INFO L280 TraceCheckUtils]: 30: Hoare triple {4072#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~malloc6.base| main_~list~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc6.base, #t~malloc6.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1019 {4073#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-11 01:08:58,785 INFO L280 TraceCheckUtils]: 31: Hoare triple {4073#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1019-1 {4074#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~mem7.base| main_~list~0.base)))} is VALID [2020-07-11 01:08:58,785 INFO L280 TraceCheckUtils]: 32: Hoare triple {4074#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~mem7.base| main_~list~0.base)))} ~end~0.base, ~end~0.offset := #t~mem7.base, #t~mem7.offset; {4075#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,786 INFO L280 TraceCheckUtils]: 33: Hoare triple {4075#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem7.base, #t~mem7.offset; {4075#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:08:58,786 INFO L280 TraceCheckUtils]: 34: Hoare triple {4075#(and (not (= main_~list~0.base main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1021 {4076#(= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,787 INFO L280 TraceCheckUtils]: 35: Hoare triple {4076#(= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1021-1 {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,788 INFO L280 TraceCheckUtils]: 36: Hoare triple {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,788 INFO L280 TraceCheckUtils]: 37: Hoare triple {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} assume !(0 != #t~nondet2); {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,788 INFO L280 TraceCheckUtils]: 38: Hoare triple {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} havoc #t~nondet2; {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,789 INFO L280 TraceCheckUtils]: 39: Hoare triple {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} is VALID [2020-07-11 01:08:58,789 INFO L280 TraceCheckUtils]: 40: Hoare triple {4077#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:58,790 INFO L280 TraceCheckUtils]: 41: Hoare triple {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:58,790 INFO L280 TraceCheckUtils]: 42: Hoare triple {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:08:58,790 INFO L280 TraceCheckUtils]: 43: Hoare triple {4078#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {4079#(= ~unnamed1~0~BLACK |main_#t~mem8|)} is VALID [2020-07-11 01:08:58,791 INFO L280 TraceCheckUtils]: 44: Hoare triple {4079#(= ~unnamed1~0~BLACK |main_#t~mem8|)} assume !(~unnamed1~0~BLACK == #t~mem8); {4057#false} is VALID [2020-07-11 01:08:58,791 INFO L280 TraceCheckUtils]: 45: Hoare triple {4057#false} havoc #t~mem8; {4057#false} is VALID [2020-07-11 01:08:58,791 INFO L280 TraceCheckUtils]: 46: Hoare triple {4057#false} assume !false; {4057#false} is VALID [2020-07-11 01:08:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:08:58,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [959220113] [2020-07-11 01:08:58,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:08:58,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-07-11 01:08:58,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119609969] [2020-07-11 01:08:58,800 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 47 [2020-07-11 01:08:58,800 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:08:58,800 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2020-07-11 01:08:58,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:08:58,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-11 01:08:58,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:08:58,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-11 01:08:58,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2020-07-11 01:08:58,868 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 20 states. [2020-07-11 01:09:02,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:02,619 INFO L93 Difference]: Finished difference Result 163 states and 170 transitions. [2020-07-11 01:09:02,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-11 01:09:02,620 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 47 [2020-07-11 01:09:02,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-11 01:09:02,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 165 transitions. [2020-07-11 01:09:02,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-11 01:09:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 165 transitions. [2020-07-11 01:09:02,626 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 165 transitions. [2020-07-11 01:09:02,866 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:02,869 INFO L225 Difference]: With dead ends: 163 [2020-07-11 01:09:02,869 INFO L226 Difference]: Without dead ends: 160 [2020-07-11 01:09:02,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=353, Invalid=1129, Unknown=0, NotChecked=0, Total=1482 [2020-07-11 01:09:02,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-11 01:09:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 106. [2020-07-11 01:09:03,538 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:03,539 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 106 states. [2020-07-11 01:09:03,539 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 106 states. [2020-07-11 01:09:03,539 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 106 states. [2020-07-11 01:09:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:03,545 INFO L93 Difference]: Finished difference Result 160 states and 167 transitions. [2020-07-11 01:09:03,545 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 167 transitions. [2020-07-11 01:09:03,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:03,546 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:03,546 INFO L74 IsIncluded]: Start isIncluded. First operand 106 states. Second operand 160 states. [2020-07-11 01:09:03,546 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 160 states. [2020-07-11 01:09:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:03,551 INFO L93 Difference]: Finished difference Result 160 states and 167 transitions. [2020-07-11 01:09:03,551 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 167 transitions. [2020-07-11 01:09:03,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:03,552 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:03,552 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:03,552 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-11 01:09:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 111 transitions. [2020-07-11 01:09:03,556 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 111 transitions. Word has length 47 [2020-07-11 01:09:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:03,556 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 111 transitions. [2020-07-11 01:09:03,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-11 01:09:03,556 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 106 states and 111 transitions. [2020-07-11 01:09:03,817 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 111 transitions. [2020-07-11 01:09:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-11 01:09:03,819 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:03,819 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:03,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-11 01:09:03,820 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:03,820 INFO L82 PathProgramCache]: Analyzing trace with hash 231328440, now seen corresponding path program 2 times [2020-07-11 01:09:03,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:03,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678829432] [2020-07-11 01:09:03,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:03,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:04,682 INFO L280 TraceCheckUtils]: 0: Hoare triple {5003#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4979#true} is VALID [2020-07-11 01:09:04,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {4979#true} #valid := #valid[0 := 0]; {4979#true} is VALID [2020-07-11 01:09:04,683 INFO L280 TraceCheckUtils]: 2: Hoare triple {4979#true} assume 0 < #StackHeapBarrier; {4979#true} is VALID [2020-07-11 01:09:04,683 INFO L280 TraceCheckUtils]: 3: Hoare triple {4979#true} assume true; {4979#true} is VALID [2020-07-11 01:09:04,683 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4979#true} {4979#true} #196#return; {4979#true} is VALID [2020-07-11 01:09:04,684 INFO L263 TraceCheckUtils]: 0: Hoare triple {4979#true} call ULTIMATE.init(); {5003#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:04,684 INFO L280 TraceCheckUtils]: 1: Hoare triple {5003#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4979#true} is VALID [2020-07-11 01:09:04,684 INFO L280 TraceCheckUtils]: 2: Hoare triple {4979#true} #valid := #valid[0 := 0]; {4979#true} is VALID [2020-07-11 01:09:04,685 INFO L280 TraceCheckUtils]: 3: Hoare triple {4979#true} assume 0 < #StackHeapBarrier; {4979#true} is VALID [2020-07-11 01:09:04,685 INFO L280 TraceCheckUtils]: 4: Hoare triple {4979#true} assume true; {4979#true} is VALID [2020-07-11 01:09:04,685 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4979#true} {4979#true} #196#return; {4979#true} is VALID [2020-07-11 01:09:04,685 INFO L263 TraceCheckUtils]: 6: Hoare triple {4979#true} call #t~ret17 := main(); {4979#true} is VALID [2020-07-11 01:09:04,687 INFO L280 TraceCheckUtils]: 7: Hoare triple {4979#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {4986#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:09:04,687 INFO L280 TraceCheckUtils]: 8: Hoare triple {4986#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {4979#true} is VALID [2020-07-11 01:09:04,687 INFO L280 TraceCheckUtils]: 9: Hoare triple {4979#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {4979#true} is VALID [2020-07-11 01:09:04,687 INFO L280 TraceCheckUtils]: 10: Hoare triple {4979#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {4979#true} is VALID [2020-07-11 01:09:04,688 INFO L280 TraceCheckUtils]: 11: Hoare triple {4979#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {4987#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-11 01:09:04,689 INFO L280 TraceCheckUtils]: 12: Hoare triple {4987#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {4988#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:04,690 INFO L280 TraceCheckUtils]: 13: Hoare triple {4988#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {4988#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:04,690 INFO L280 TraceCheckUtils]: 14: Hoare triple {4988#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {4989#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,691 INFO L280 TraceCheckUtils]: 15: Hoare triple {4989#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,692 INFO L280 TraceCheckUtils]: 16: Hoare triple {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,697 INFO L280 TraceCheckUtils]: 17: Hoare triple {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume !!(0 != #t~nondet2); {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,699 INFO L280 TraceCheckUtils]: 18: Hoare triple {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} havoc #t~nondet2; {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,700 INFO L280 TraceCheckUtils]: 19: Hoare triple {4990#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {4991#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,701 INFO L280 TraceCheckUtils]: 20: Hoare triple {4991#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {4992#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:04,702 INFO L280 TraceCheckUtils]: 21: Hoare triple {4992#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {4993#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,703 INFO L280 TraceCheckUtils]: 22: Hoare triple {4993#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,704 INFO L280 TraceCheckUtils]: 23: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,704 INFO L280 TraceCheckUtils]: 24: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,705 INFO L280 TraceCheckUtils]: 25: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,706 INFO L280 TraceCheckUtils]: 26: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume 0 != #t~nondet5; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,707 INFO L280 TraceCheckUtils]: 27: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,708 INFO L280 TraceCheckUtils]: 28: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,708 INFO L280 TraceCheckUtils]: 29: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,709 INFO L280 TraceCheckUtils]: 30: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !!(0 != #t~nondet2); {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,710 INFO L280 TraceCheckUtils]: 31: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,711 INFO L280 TraceCheckUtils]: 32: Hoare triple {4994#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {4995#(and (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,712 INFO L280 TraceCheckUtils]: 33: Hoare triple {4995#(and (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {4996#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-11 01:09:04,713 INFO L280 TraceCheckUtils]: 34: Hoare triple {4996#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {4997#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,714 INFO L280 TraceCheckUtils]: 35: Hoare triple {4997#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {4998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,715 INFO L280 TraceCheckUtils]: 36: Hoare triple {4998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {4998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,716 INFO L280 TraceCheckUtils]: 37: Hoare triple {4998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,716 INFO L280 TraceCheckUtils]: 38: Hoare triple {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,717 INFO L280 TraceCheckUtils]: 39: Hoare triple {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} assume 0 != #t~nondet5; {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,718 INFO L280 TraceCheckUtils]: 40: Hoare triple {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,719 INFO L280 TraceCheckUtils]: 41: Hoare triple {4999#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,719 INFO L280 TraceCheckUtils]: 42: Hoare triple {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,720 INFO L280 TraceCheckUtils]: 43: Hoare triple {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet2); {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,721 INFO L280 TraceCheckUtils]: 44: Hoare triple {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,722 INFO L280 TraceCheckUtils]: 45: Hoare triple {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:04,723 INFO L280 TraceCheckUtils]: 46: Hoare triple {5000#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:04,723 INFO L280 TraceCheckUtils]: 47: Hoare triple {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:04,724 INFO L280 TraceCheckUtils]: 48: Hoare triple {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:04,724 INFO L280 TraceCheckUtils]: 49: Hoare triple {5001#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {5002#(= ~unnamed1~0~BLACK |main_#t~mem8|)} is VALID [2020-07-11 01:09:04,724 INFO L280 TraceCheckUtils]: 50: Hoare triple {5002#(= ~unnamed1~0~BLACK |main_#t~mem8|)} assume !(~unnamed1~0~BLACK == #t~mem8); {4980#false} is VALID [2020-07-11 01:09:04,725 INFO L280 TraceCheckUtils]: 51: Hoare triple {4980#false} havoc #t~mem8; {4980#false} is VALID [2020-07-11 01:09:04,725 INFO L280 TraceCheckUtils]: 52: Hoare triple {4980#false} assume !false; {4980#false} is VALID [2020-07-11 01:09:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:09:04,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678829432] [2020-07-11 01:09:04,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:09:04,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-07-11 01:09:04,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469067749] [2020-07-11 01:09:04,737 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2020-07-11 01:09:04,737 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:04,737 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2020-07-11 01:09:04,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:04,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-11 01:09:04,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:04,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-11 01:09:04,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2020-07-11 01:09:04,814 INFO L87 Difference]: Start difference. First operand 106 states and 111 transitions. Second operand 20 states. [2020-07-11 01:09:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:08,690 INFO L93 Difference]: Finished difference Result 179 states and 188 transitions. [2020-07-11 01:09:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-11 01:09:08,691 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 53 [2020-07-11 01:09:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:08,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-11 01:09:08,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 152 transitions. [2020-07-11 01:09:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-11 01:09:08,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 152 transitions. [2020-07-11 01:09:08,697 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 152 transitions. [2020-07-11 01:09:08,938 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 152 edges. 152 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:08,942 INFO L225 Difference]: With dead ends: 179 [2020-07-11 01:09:08,942 INFO L226 Difference]: Without dead ends: 176 [2020-07-11 01:09:08,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=310, Invalid=950, Unknown=0, NotChecked=0, Total=1260 [2020-07-11 01:09:08,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-07-11 01:09:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 117. [2020-07-11 01:09:09,554 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:09,555 INFO L82 GeneralOperation]: Start isEquivalent. First operand 176 states. Second operand 117 states. [2020-07-11 01:09:09,555 INFO L74 IsIncluded]: Start isIncluded. First operand 176 states. Second operand 117 states. [2020-07-11 01:09:09,555 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 117 states. [2020-07-11 01:09:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:09,561 INFO L93 Difference]: Finished difference Result 176 states and 185 transitions. [2020-07-11 01:09:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 185 transitions. [2020-07-11 01:09:09,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:09,562 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:09,562 INFO L74 IsIncluded]: Start isIncluded. First operand 117 states. Second operand 176 states. [2020-07-11 01:09:09,562 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 176 states. [2020-07-11 01:09:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:09,567 INFO L93 Difference]: Finished difference Result 176 states and 185 transitions. [2020-07-11 01:09:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 185 transitions. [2020-07-11 01:09:09,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:09,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:09,568 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:09,568 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-11 01:09:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 124 transitions. [2020-07-11 01:09:09,572 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 124 transitions. Word has length 53 [2020-07-11 01:09:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:09,572 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 124 transitions. [2020-07-11 01:09:09,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-11 01:09:09,572 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 117 states and 124 transitions. [2020-07-11 01:09:09,872 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:09,872 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 124 transitions. [2020-07-11 01:09:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-11 01:09:09,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:09,874 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:09,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-11 01:09:09,874 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:09,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:09,875 INFO L82 PathProgramCache]: Analyzing trace with hash -2144912159, now seen corresponding path program 1 times [2020-07-11 01:09:09,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:09,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329020156] [2020-07-11 01:09:09,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:10,539 INFO L280 TraceCheckUtils]: 0: Hoare triple {6008#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5982#true} is VALID [2020-07-11 01:09:10,540 INFO L280 TraceCheckUtils]: 1: Hoare triple {5982#true} #valid := #valid[0 := 0]; {5982#true} is VALID [2020-07-11 01:09:10,540 INFO L280 TraceCheckUtils]: 2: Hoare triple {5982#true} assume 0 < #StackHeapBarrier; {5982#true} is VALID [2020-07-11 01:09:10,540 INFO L280 TraceCheckUtils]: 3: Hoare triple {5982#true} assume true; {5982#true} is VALID [2020-07-11 01:09:10,540 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5982#true} {5982#true} #196#return; {5982#true} is VALID [2020-07-11 01:09:10,542 INFO L263 TraceCheckUtils]: 0: Hoare triple {5982#true} call ULTIMATE.init(); {6008#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:10,542 INFO L280 TraceCheckUtils]: 1: Hoare triple {6008#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5982#true} is VALID [2020-07-11 01:09:10,542 INFO L280 TraceCheckUtils]: 2: Hoare triple {5982#true} #valid := #valid[0 := 0]; {5982#true} is VALID [2020-07-11 01:09:10,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {5982#true} assume 0 < #StackHeapBarrier; {5982#true} is VALID [2020-07-11 01:09:10,542 INFO L280 TraceCheckUtils]: 4: Hoare triple {5982#true} assume true; {5982#true} is VALID [2020-07-11 01:09:10,543 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5982#true} {5982#true} #196#return; {5982#true} is VALID [2020-07-11 01:09:10,543 INFO L263 TraceCheckUtils]: 6: Hoare triple {5982#true} call #t~ret17 := main(); {5982#true} is VALID [2020-07-11 01:09:10,543 INFO L280 TraceCheckUtils]: 7: Hoare triple {5982#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {5989#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:09:10,544 INFO L280 TraceCheckUtils]: 8: Hoare triple {5989#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {5990#(= 0 main_~null~0.offset)} is VALID [2020-07-11 01:09:10,544 INFO L280 TraceCheckUtils]: 9: Hoare triple {5990#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {5990#(= 0 main_~null~0.offset)} is VALID [2020-07-11 01:09:10,544 INFO L280 TraceCheckUtils]: 10: Hoare triple {5990#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {5990#(= 0 main_~null~0.offset)} is VALID [2020-07-11 01:09:10,545 INFO L280 TraceCheckUtils]: 11: Hoare triple {5990#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {5991#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset))} is VALID [2020-07-11 01:09:10,546 INFO L280 TraceCheckUtils]: 12: Hoare triple {5991#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:10,546 INFO L280 TraceCheckUtils]: 13: Hoare triple {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:10,547 INFO L280 TraceCheckUtils]: 14: Hoare triple {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:10,547 INFO L280 TraceCheckUtils]: 15: Hoare triple {5992#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:10,548 INFO L280 TraceCheckUtils]: 16: Hoare triple {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:10,549 INFO L280 TraceCheckUtils]: 17: Hoare triple {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:10,549 INFO L280 TraceCheckUtils]: 18: Hoare triple {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:10,550 INFO L280 TraceCheckUtils]: 19: Hoare triple {5993#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {5994#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= 0 |main_#t~malloc3.offset|) (= main_~list~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:10,552 INFO L280 TraceCheckUtils]: 20: Hoare triple {5994#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= 0 |main_#t~malloc3.offset|) (= main_~list~0.base main_~end~0.base))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {5995#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-11 01:09:10,553 INFO L280 TraceCheckUtils]: 21: Hoare triple {5995#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {5996#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= 0 |main_#t~mem4.offset|) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,554 INFO L280 TraceCheckUtils]: 22: Hoare triple {5996#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= 0 |main_#t~mem4.offset|) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {5997#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~end~0.offset main_~null~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,555 INFO L280 TraceCheckUtils]: 23: Hoare triple {5997#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~end~0.offset main_~null~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} havoc #t~mem4.base, #t~mem4.offset; {5997#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~end~0.offset main_~null~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,557 INFO L280 TraceCheckUtils]: 24: Hoare triple {5997#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~end~0.offset main_~null~0.offset) (= 0 (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,557 INFO L280 TraceCheckUtils]: 25: Hoare triple {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,558 INFO L280 TraceCheckUtils]: 26: Hoare triple {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} assume 0 != #t~nondet5; {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,558 INFO L280 TraceCheckUtils]: 27: Hoare triple {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} havoc #t~nondet5; {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:10,559 INFO L280 TraceCheckUtils]: 28: Hoare triple {5998#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 0 main_~end~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,560 INFO L280 TraceCheckUtils]: 29: Hoare triple {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,560 INFO L280 TraceCheckUtils]: 30: Hoare triple {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} assume !(0 != #t~nondet2); {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,561 INFO L280 TraceCheckUtils]: 31: Hoare triple {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} havoc #t~nondet2; {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,561 INFO L280 TraceCheckUtils]: 32: Hoare triple {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:10,562 INFO L280 TraceCheckUtils]: 33: Hoare triple {5999#(and (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) 4)) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,563 INFO L280 TraceCheckUtils]: 34: Hoare triple {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,564 INFO L280 TraceCheckUtils]: 35: Hoare triple {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} goto; {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,564 INFO L280 TraceCheckUtils]: 36: Hoare triple {6000#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {6001#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) |main_#t~mem8|) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,565 INFO L280 TraceCheckUtils]: 37: Hoare triple {6001#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) |main_#t~mem8|) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} assume !!(~unnamed1~0~BLACK == #t~mem8); {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,565 INFO L280 TraceCheckUtils]: 38: Hoare triple {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} havoc #t~mem8; {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,566 INFO L280 TraceCheckUtils]: 39: Hoare triple {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} goto; {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,566 INFO L280 TraceCheckUtils]: 40: Hoare triple {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} is VALID [2020-07-11 01:09:10,567 INFO L280 TraceCheckUtils]: 41: Hoare triple {6002#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4)))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {6003#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) |main_#t~mem9|))} is VALID [2020-07-11 01:09:10,568 INFO L280 TraceCheckUtils]: 42: Hoare triple {6003#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) |main_#t~mem9|))} assume !(~unnamed1~0~RED == #t~mem9); {6004#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) ~unnamed1~0~RED)))} is VALID [2020-07-11 01:09:10,568 INFO L280 TraceCheckUtils]: 43: Hoare triple {6004#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) ~unnamed1~0~RED)))} havoc #t~mem9; {6004#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) ~unnamed1~0~RED)))} is VALID [2020-07-11 01:09:10,569 INFO L280 TraceCheckUtils]: 44: Hoare triple {6004#(and (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (not (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) 4) ~unnamed1~0~RED)))} SUMMARY for call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1035-4 {6005#(and (not (= (select (select |#memory_int| |main_#t~mem12.base|) 4) ~unnamed1~0~RED)) (= |main_#t~mem12.offset| 0))} is VALID [2020-07-11 01:09:10,569 INFO L280 TraceCheckUtils]: 45: Hoare triple {6005#(and (not (= (select (select |#memory_int| |main_#t~mem12.base|) 4) ~unnamed1~0~RED)) (= |main_#t~mem12.offset| 0))} ~end~0.base, ~end~0.offset := #t~mem12.base, #t~mem12.offset; {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} is VALID [2020-07-11 01:09:10,570 INFO L280 TraceCheckUtils]: 46: Hoare triple {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} havoc #t~mem12.base, #t~mem12.offset; {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} is VALID [2020-07-11 01:09:10,570 INFO L280 TraceCheckUtils]: 47: Hoare triple {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} is VALID [2020-07-11 01:09:10,573 INFO L280 TraceCheckUtils]: 48: Hoare triple {6006#(not (= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~RED))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {6007#(not (= ~unnamed1~0~RED |main_#t~mem9|))} is VALID [2020-07-11 01:09:10,576 INFO L280 TraceCheckUtils]: 49: Hoare triple {6007#(not (= ~unnamed1~0~RED |main_#t~mem9|))} assume ~unnamed1~0~RED == #t~mem9; {5983#false} is VALID [2020-07-11 01:09:10,576 INFO L280 TraceCheckUtils]: 50: Hoare triple {5983#false} havoc #t~mem9; {5983#false} is VALID [2020-07-11 01:09:10,576 INFO L280 TraceCheckUtils]: 51: Hoare triple {5983#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1037 {5983#false} is VALID [2020-07-11 01:09:10,576 INFO L280 TraceCheckUtils]: 52: Hoare triple {5983#false} ~end~0.base, ~end~0.offset := #t~mem10.base, #t~mem10.offset; {5983#false} is VALID [2020-07-11 01:09:10,576 INFO L280 TraceCheckUtils]: 53: Hoare triple {5983#false} havoc #t~mem10.base, #t~mem10.offset; {5983#false} is VALID [2020-07-11 01:09:10,577 INFO L280 TraceCheckUtils]: 54: Hoare triple {5983#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {5983#false} is VALID [2020-07-11 01:09:10,577 INFO L280 TraceCheckUtils]: 55: Hoare triple {5983#false} assume !false; {5983#false} is VALID [2020-07-11 01:09:10,586 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:09:10,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329020156] [2020-07-11 01:09:10,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:09:10,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-07-11 01:09:10,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967613340] [2020-07-11 01:09:10,587 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2020-07-11 01:09:10,587 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:10,587 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states. [2020-07-11 01:09:10,657 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:10,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-11 01:09:10,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:10,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-11 01:09:10,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2020-07-11 01:09:10,659 INFO L87 Difference]: Start difference. First operand 117 states and 124 transitions. Second operand 22 states. [2020-07-11 01:09:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:15,985 INFO L93 Difference]: Finished difference Result 197 states and 208 transitions. [2020-07-11 01:09:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-11 01:09:15,985 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2020-07-11 01:09:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:15,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-11 01:09:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 180 transitions. [2020-07-11 01:09:15,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-11 01:09:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 180 transitions. [2020-07-11 01:09:15,995 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 180 transitions. [2020-07-11 01:09:16,252 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 180 edges. 180 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:16,257 INFO L225 Difference]: With dead ends: 197 [2020-07-11 01:09:16,257 INFO L226 Difference]: Without dead ends: 175 [2020-07-11 01:09:16,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=390, Invalid=1680, Unknown=0, NotChecked=0, Total=2070 [2020-07-11 01:09:16,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-07-11 01:09:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 137. [2020-07-11 01:09:17,152 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:17,152 INFO L82 GeneralOperation]: Start isEquivalent. First operand 175 states. Second operand 137 states. [2020-07-11 01:09:17,152 INFO L74 IsIncluded]: Start isIncluded. First operand 175 states. Second operand 137 states. [2020-07-11 01:09:17,152 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 137 states. [2020-07-11 01:09:17,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:17,158 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2020-07-11 01:09:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 184 transitions. [2020-07-11 01:09:17,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:17,159 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:17,159 INFO L74 IsIncluded]: Start isIncluded. First operand 137 states. Second operand 175 states. [2020-07-11 01:09:17,160 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 175 states. [2020-07-11 01:09:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:17,166 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2020-07-11 01:09:17,166 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 184 transitions. [2020-07-11 01:09:17,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:17,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:17,167 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:17,167 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:17,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-11 01:09:17,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 145 transitions. [2020-07-11 01:09:17,172 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 145 transitions. Word has length 56 [2020-07-11 01:09:17,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:17,172 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 145 transitions. [2020-07-11 01:09:17,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-11 01:09:17,172 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 137 states and 145 transitions. [2020-07-11 01:09:17,612 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 145 transitions. [2020-07-11 01:09:17,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-11 01:09:17,614 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:17,614 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:17,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-11 01:09:17,614 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:17,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1025074422, now seen corresponding path program 1 times [2020-07-11 01:09:17,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:17,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [623278147] [2020-07-11 01:09:17,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:18,650 INFO L280 TraceCheckUtils]: 0: Hoare triple {7103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7077#true} is VALID [2020-07-11 01:09:18,650 INFO L280 TraceCheckUtils]: 1: Hoare triple {7077#true} #valid := #valid[0 := 0]; {7077#true} is VALID [2020-07-11 01:09:18,650 INFO L280 TraceCheckUtils]: 2: Hoare triple {7077#true} assume 0 < #StackHeapBarrier; {7077#true} is VALID [2020-07-11 01:09:18,650 INFO L280 TraceCheckUtils]: 3: Hoare triple {7077#true} assume true; {7077#true} is VALID [2020-07-11 01:09:18,650 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7077#true} {7077#true} #196#return; {7077#true} is VALID [2020-07-11 01:09:18,651 INFO L263 TraceCheckUtils]: 0: Hoare triple {7077#true} call ULTIMATE.init(); {7103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:18,651 INFO L280 TraceCheckUtils]: 1: Hoare triple {7103#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7077#true} is VALID [2020-07-11 01:09:18,651 INFO L280 TraceCheckUtils]: 2: Hoare triple {7077#true} #valid := #valid[0 := 0]; {7077#true} is VALID [2020-07-11 01:09:18,651 INFO L280 TraceCheckUtils]: 3: Hoare triple {7077#true} assume 0 < #StackHeapBarrier; {7077#true} is VALID [2020-07-11 01:09:18,652 INFO L280 TraceCheckUtils]: 4: Hoare triple {7077#true} assume true; {7077#true} is VALID [2020-07-11 01:09:18,652 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7077#true} {7077#true} #196#return; {7077#true} is VALID [2020-07-11 01:09:18,652 INFO L263 TraceCheckUtils]: 6: Hoare triple {7077#true} call #t~ret17 := main(); {7077#true} is VALID [2020-07-11 01:09:18,652 INFO L280 TraceCheckUtils]: 7: Hoare triple {7077#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {7084#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-11 01:09:18,652 INFO L280 TraceCheckUtils]: 8: Hoare triple {7084#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {7077#true} is VALID [2020-07-11 01:09:18,653 INFO L280 TraceCheckUtils]: 9: Hoare triple {7077#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {7077#true} is VALID [2020-07-11 01:09:18,653 INFO L280 TraceCheckUtils]: 10: Hoare triple {7077#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {7077#true} is VALID [2020-07-11 01:09:18,654 INFO L280 TraceCheckUtils]: 11: Hoare triple {7077#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {7085#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-11 01:09:18,655 INFO L280 TraceCheckUtils]: 12: Hoare triple {7085#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {7086#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:18,655 INFO L280 TraceCheckUtils]: 13: Hoare triple {7086#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {7086#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-11 01:09:18,656 INFO L280 TraceCheckUtils]: 14: Hoare triple {7086#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {7087#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,657 INFO L280 TraceCheckUtils]: 15: Hoare triple {7087#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,658 INFO L280 TraceCheckUtils]: 16: Hoare triple {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,660 INFO L280 TraceCheckUtils]: 17: Hoare triple {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} assume !!(0 != #t~nondet2); {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,661 INFO L280 TraceCheckUtils]: 18: Hoare triple {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} havoc #t~nondet2; {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,662 INFO L280 TraceCheckUtils]: 19: Hoare triple {7088#(and (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {7089#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,664 INFO L280 TraceCheckUtils]: 20: Hoare triple {7089#(and (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {7090#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} is VALID [2020-07-11 01:09:18,664 INFO L280 TraceCheckUtils]: 21: Hoare triple {7090#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 4))) (= 1 (select |#valid| main_~end~0.base)) (not (= (+ main_~list~0.offset 4) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {7091#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,665 INFO L280 TraceCheckUtils]: 22: Hoare triple {7091#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,666 INFO L280 TraceCheckUtils]: 23: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,667 INFO L280 TraceCheckUtils]: 24: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,667 INFO L280 TraceCheckUtils]: 25: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,668 INFO L280 TraceCheckUtils]: 26: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume 0 != #t~nondet5; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,668 INFO L280 TraceCheckUtils]: 27: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,669 INFO L280 TraceCheckUtils]: 28: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,670 INFO L280 TraceCheckUtils]: 29: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,670 INFO L280 TraceCheckUtils]: 30: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !!(0 != #t~nondet2); {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,671 INFO L280 TraceCheckUtils]: 31: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,672 INFO L280 TraceCheckUtils]: 32: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {7093#(and (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,673 INFO L280 TraceCheckUtils]: 33: Hoare triple {7093#(and (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {7094#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-11 01:09:18,673 INFO L280 TraceCheckUtils]: 34: Hoare triple {7094#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {7091#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,674 INFO L280 TraceCheckUtils]: 35: Hoare triple {7091#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (not (= |main_#t~mem4.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,674 INFO L280 TraceCheckUtils]: 36: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem4.base, #t~mem4.offset; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,675 INFO L280 TraceCheckUtils]: 37: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,676 INFO L280 TraceCheckUtils]: 38: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,676 INFO L280 TraceCheckUtils]: 39: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet5); {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,677 INFO L280 TraceCheckUtils]: 40: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet5; {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,678 INFO L280 TraceCheckUtils]: 41: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~RED, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1018 {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,679 INFO L280 TraceCheckUtils]: 42: Hoare triple {7092#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call #t~malloc6.base, #t~malloc6.offset := #Ultimate.allocOnHeap(8); srcloc: L1018-1 {7095#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~malloc6.base| main_~list~0.base)))} is VALID [2020-07-11 01:09:18,689 INFO L280 TraceCheckUtils]: 43: Hoare triple {7095#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~malloc6.base| main_~list~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc6.base, #t~malloc6.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1019 {7096#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-11 01:09:18,690 INFO L280 TraceCheckUtils]: 44: Hoare triple {7096#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1019-1 {7097#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~mem7.base| main_~list~0.base)))} is VALID [2020-07-11 01:09:18,691 INFO L280 TraceCheckUtils]: 45: Hoare triple {7097#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))) (not (= |main_#t~mem7.base| main_~list~0.base)))} ~end~0.base, ~end~0.offset := #t~mem7.base, #t~mem7.offset; {7098#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,692 INFO L280 TraceCheckUtils]: 46: Hoare triple {7098#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~mem7.base, #t~mem7.offset; {7098#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,693 INFO L280 TraceCheckUtils]: 47: Hoare triple {7098#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1021 {7099#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,694 INFO L280 TraceCheckUtils]: 48: Hoare triple {7099#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 4))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1021-1 {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,695 INFO L280 TraceCheckUtils]: 49: Hoare triple {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,695 INFO L280 TraceCheckUtils]: 50: Hoare triple {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} assume !(0 != #t~nondet2); {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,696 INFO L280 TraceCheckUtils]: 51: Hoare triple {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} havoc #t~nondet2; {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,696 INFO L280 TraceCheckUtils]: 52: Hoare triple {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} is VALID [2020-07-11 01:09:18,697 INFO L280 TraceCheckUtils]: 53: Hoare triple {7100#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 4))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:18,697 INFO L280 TraceCheckUtils]: 54: Hoare triple {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:18,698 INFO L280 TraceCheckUtils]: 55: Hoare triple {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} goto; {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} is VALID [2020-07-11 01:09:18,698 INFO L280 TraceCheckUtils]: 56: Hoare triple {7101#(= (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 4)) ~unnamed1~0~BLACK)} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {7102#(= ~unnamed1~0~BLACK |main_#t~mem8|)} is VALID [2020-07-11 01:09:18,699 INFO L280 TraceCheckUtils]: 57: Hoare triple {7102#(= ~unnamed1~0~BLACK |main_#t~mem8|)} assume !(~unnamed1~0~BLACK == #t~mem8); {7078#false} is VALID [2020-07-11 01:09:18,699 INFO L280 TraceCheckUtils]: 58: Hoare triple {7078#false} havoc #t~mem8; {7078#false} is VALID [2020-07-11 01:09:18,699 INFO L280 TraceCheckUtils]: 59: Hoare triple {7078#false} assume !false; {7078#false} is VALID [2020-07-11 01:09:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-11 01:09:18,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [623278147] [2020-07-11 01:09:18,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:09:18,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-07-11 01:09:18,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579928629] [2020-07-11 01:09:18,712 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2020-07-11 01:09:18,713 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:18,713 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states. [2020-07-11 01:09:18,788 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:18,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-11 01:09:18,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:18,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-11 01:09:18,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2020-07-11 01:09:18,790 INFO L87 Difference]: Start difference. First operand 137 states and 145 transitions. Second operand 22 states. [2020-07-11 01:09:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:23,082 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2020-07-11 01:09:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-11 01:09:23,082 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 60 [2020-07-11 01:09:23,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:23,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-11 01:09:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 108 transitions. [2020-07-11 01:09:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-11 01:09:23,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 108 transitions. [2020-07-11 01:09:23,088 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states and 108 transitions. [2020-07-11 01:09:23,261 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:23,264 INFO L225 Difference]: With dead ends: 148 [2020-07-11 01:09:23,264 INFO L226 Difference]: Without dead ends: 145 [2020-07-11 01:09:23,265 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=446, Invalid=1360, Unknown=0, NotChecked=0, Total=1806 [2020-07-11 01:09:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-11 01:09:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 103. [2020-07-11 01:09:23,930 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:23,930 INFO L82 GeneralOperation]: Start isEquivalent. First operand 145 states. Second operand 103 states. [2020-07-11 01:09:23,930 INFO L74 IsIncluded]: Start isIncluded. First operand 145 states. Second operand 103 states. [2020-07-11 01:09:23,931 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 103 states. [2020-07-11 01:09:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:23,935 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2020-07-11 01:09:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2020-07-11 01:09:23,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:23,936 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:23,936 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 145 states. [2020-07-11 01:09:23,936 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 145 states. [2020-07-11 01:09:23,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:23,940 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2020-07-11 01:09:23,940 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2020-07-11 01:09:23,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:23,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:23,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:23,941 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:23,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-07-11 01:09:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2020-07-11 01:09:23,944 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 60 [2020-07-11 01:09:23,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:23,944 INFO L479 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2020-07-11 01:09:23,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-11 01:09:23,944 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 103 states and 108 transitions. [2020-07-11 01:09:24,279 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2020-07-11 01:09:24,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-11 01:09:24,280 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:24,281 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:24,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-11 01:09:24,281 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:24,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:24,282 INFO L82 PathProgramCache]: Analyzing trace with hash -412836324, now seen corresponding path program 2 times [2020-07-11 01:09:24,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:24,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524795421] [2020-07-11 01:09:24,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:24,715 INFO L280 TraceCheckUtils]: 0: Hoare triple {7961#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7940#true} is VALID [2020-07-11 01:09:24,715 INFO L280 TraceCheckUtils]: 1: Hoare triple {7940#true} #valid := #valid[0 := 0]; {7940#true} is VALID [2020-07-11 01:09:24,716 INFO L280 TraceCheckUtils]: 2: Hoare triple {7940#true} assume 0 < #StackHeapBarrier; {7940#true} is VALID [2020-07-11 01:09:24,716 INFO L280 TraceCheckUtils]: 3: Hoare triple {7940#true} assume true; {7940#true} is VALID [2020-07-11 01:09:24,716 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7940#true} {7940#true} #196#return; {7940#true} is VALID [2020-07-11 01:09:24,717 INFO L263 TraceCheckUtils]: 0: Hoare triple {7940#true} call ULTIMATE.init(); {7961#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:24,718 INFO L280 TraceCheckUtils]: 1: Hoare triple {7961#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7940#true} is VALID [2020-07-11 01:09:24,718 INFO L280 TraceCheckUtils]: 2: Hoare triple {7940#true} #valid := #valid[0 := 0]; {7940#true} is VALID [2020-07-11 01:09:24,718 INFO L280 TraceCheckUtils]: 3: Hoare triple {7940#true} assume 0 < #StackHeapBarrier; {7940#true} is VALID [2020-07-11 01:09:24,719 INFO L280 TraceCheckUtils]: 4: Hoare triple {7940#true} assume true; {7940#true} is VALID [2020-07-11 01:09:24,719 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7940#true} {7940#true} #196#return; {7940#true} is VALID [2020-07-11 01:09:24,719 INFO L263 TraceCheckUtils]: 6: Hoare triple {7940#true} call #t~ret17 := main(); {7940#true} is VALID [2020-07-11 01:09:24,720 INFO L280 TraceCheckUtils]: 7: Hoare triple {7940#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {7940#true} is VALID [2020-07-11 01:09:24,720 INFO L280 TraceCheckUtils]: 8: Hoare triple {7940#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {7940#true} is VALID [2020-07-11 01:09:24,720 INFO L280 TraceCheckUtils]: 9: Hoare triple {7940#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {7940#true} is VALID [2020-07-11 01:09:24,721 INFO L280 TraceCheckUtils]: 10: Hoare triple {7940#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {7940#true} is VALID [2020-07-11 01:09:24,722 INFO L280 TraceCheckUtils]: 11: Hoare triple {7940#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {7947#(= 1 (select |#valid| |main_#t~malloc1.base|))} is VALID [2020-07-11 01:09:24,723 INFO L280 TraceCheckUtils]: 12: Hoare triple {7947#(= 1 (select |#valid| |main_#t~malloc1.base|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {7948#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-11 01:09:24,724 INFO L280 TraceCheckUtils]: 13: Hoare triple {7948#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {7948#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-11 01:09:24,724 INFO L280 TraceCheckUtils]: 14: Hoare triple {7948#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {7948#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-11 01:09:24,726 INFO L280 TraceCheckUtils]: 15: Hoare triple {7948#(= 1 (select |#valid| main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:24,727 INFO L280 TraceCheckUtils]: 16: Hoare triple {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:24,728 INFO L280 TraceCheckUtils]: 17: Hoare triple {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:24,728 INFO L280 TraceCheckUtils]: 18: Hoare triple {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:24,730 INFO L280 TraceCheckUtils]: 19: Hoare triple {7949#(and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {7950#(and (= main_~list~0.offset main_~end~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:24,731 INFO L280 TraceCheckUtils]: 20: Hoare triple {7950#(and (= main_~list~0.offset main_~end~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {7951#(and (= main_~list~0.offset main_~end~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:24,733 INFO L280 TraceCheckUtils]: 21: Hoare triple {7951#(and (= main_~list~0.offset main_~end~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {7952#(and (not (= |main_#t~mem4.base| main_~list~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) |main_#t~mem4.offset|) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,734 INFO L280 TraceCheckUtils]: 22: Hoare triple {7952#(and (not (= |main_#t~mem4.base| main_~list~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) |main_#t~mem4.offset|) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {7953#(and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,734 INFO L280 TraceCheckUtils]: 23: Hoare triple {7953#(and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} havoc #t~mem4.base, #t~mem4.offset; {7953#(and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,736 INFO L280 TraceCheckUtils]: 24: Hoare triple {7953#(and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,737 INFO L280 TraceCheckUtils]: 25: Hoare triple {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,738 INFO L280 TraceCheckUtils]: 26: Hoare triple {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} assume 0 != #t~nondet5; {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,738 INFO L280 TraceCheckUtils]: 27: Hoare triple {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} havoc #t~nondet5; {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:24,740 INFO L280 TraceCheckUtils]: 28: Hoare triple {7954#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~end~0.offset (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1014 {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} is VALID [2020-07-11 01:09:24,741 INFO L280 TraceCheckUtils]: 29: Hoare triple {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} is VALID [2020-07-11 01:09:24,742 INFO L280 TraceCheckUtils]: 30: Hoare triple {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} assume !(0 != #t~nondet2); {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} is VALID [2020-07-11 01:09:24,743 INFO L280 TraceCheckUtils]: 31: Hoare triple {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} havoc #t~nondet2; {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} is VALID [2020-07-11 01:09:24,743 INFO L280 TraceCheckUtils]: 32: Hoare triple {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} is VALID [2020-07-11 01:09:24,744 INFO L280 TraceCheckUtils]: 33: Hoare triple {7955#(and (= main_~null~0.offset (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset))) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,745 INFO L280 TraceCheckUtils]: 34: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,746 INFO L280 TraceCheckUtils]: 35: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} goto; {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,747 INFO L280 TraceCheckUtils]: 36: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,748 INFO L280 TraceCheckUtils]: 37: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} assume !!(~unnamed1~0~BLACK == #t~mem8); {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,749 INFO L280 TraceCheckUtils]: 38: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} havoc #t~mem8; {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,750 INFO L280 TraceCheckUtils]: 39: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} goto; {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,751 INFO L280 TraceCheckUtils]: 40: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,752 INFO L280 TraceCheckUtils]: 41: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,753 INFO L280 TraceCheckUtils]: 42: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} assume !(~unnamed1~0~RED == #t~mem9); {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,754 INFO L280 TraceCheckUtils]: 43: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} havoc #t~mem9; {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,755 INFO L280 TraceCheckUtils]: 44: Hoare triple {7956#(and (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset))} SUMMARY for call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1035-4 {7957#(and (= (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|) main_~null~0.offset) (= main_~null~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))} is VALID [2020-07-11 01:09:24,756 INFO L280 TraceCheckUtils]: 45: Hoare triple {7957#(and (= (select (select |#memory_$Pointer$.offset| |main_#t~mem12.base|) |main_#t~mem12.offset|) main_~null~0.offset) (= main_~null~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) |main_#t~mem12.offset|)))} ~end~0.base, ~end~0.offset := #t~mem12.base, #t~mem12.offset; {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,757 INFO L280 TraceCheckUtils]: 46: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} havoc #t~mem12.base, #t~mem12.offset; {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,758 INFO L280 TraceCheckUtils]: 47: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,759 INFO L280 TraceCheckUtils]: 48: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,760 INFO L280 TraceCheckUtils]: 49: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} assume !(~unnamed1~0~RED == #t~mem9); {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,761 INFO L280 TraceCheckUtils]: 50: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} havoc #t~mem9; {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} is VALID [2020-07-11 01:09:24,780 INFO L280 TraceCheckUtils]: 51: Hoare triple {7958#(and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset))} SUMMARY for call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1035-4 {7959#(and (= |main_#t~mem12.offset| main_~null~0.offset) (= |main_#t~mem12.base| main_~null~0.base))} is VALID [2020-07-11 01:09:24,781 INFO L280 TraceCheckUtils]: 52: Hoare triple {7959#(and (= |main_#t~mem12.offset| main_~null~0.offset) (= |main_#t~mem12.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem12.base, #t~mem12.offset; {7960#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:24,782 INFO L280 TraceCheckUtils]: 53: Hoare triple {7960#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} havoc #t~mem12.base, #t~mem12.offset; {7960#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:24,783 INFO L280 TraceCheckUtils]: 54: Hoare triple {7960#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7941#false} is VALID [2020-07-11 01:09:24,783 INFO L280 TraceCheckUtils]: 55: Hoare triple {7941#false} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {7941#false} is VALID [2020-07-11 01:09:24,783 INFO L280 TraceCheckUtils]: 56: Hoare triple {7941#false} assume ~unnamed1~0~RED == #t~mem9; {7941#false} is VALID [2020-07-11 01:09:24,784 INFO L280 TraceCheckUtils]: 57: Hoare triple {7941#false} havoc #t~mem9; {7941#false} is VALID [2020-07-11 01:09:24,784 INFO L280 TraceCheckUtils]: 58: Hoare triple {7941#false} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1037 {7941#false} is VALID [2020-07-11 01:09:24,784 INFO L280 TraceCheckUtils]: 59: Hoare triple {7941#false} ~end~0.base, ~end~0.offset := #t~mem10.base, #t~mem10.offset; {7941#false} is VALID [2020-07-11 01:09:24,785 INFO L280 TraceCheckUtils]: 60: Hoare triple {7941#false} havoc #t~mem10.base, #t~mem10.offset; {7941#false} is VALID [2020-07-11 01:09:24,785 INFO L280 TraceCheckUtils]: 61: Hoare triple {7941#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7941#false} is VALID [2020-07-11 01:09:24,785 INFO L280 TraceCheckUtils]: 62: Hoare triple {7941#false} assume !false; {7941#false} is VALID [2020-07-11 01:09:24,803 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:09:24,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524795421] [2020-07-11 01:09:24,804 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:09:24,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-07-11 01:09:24,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773402038] [2020-07-11 01:09:24,806 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 63 [2020-07-11 01:09:24,806 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:24,807 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-11 01:09:24,906 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:24,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-11 01:09:24,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:24,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-11 01:09:24,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-07-11 01:09:24,908 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 17 states. [2020-07-11 01:09:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:28,527 INFO L93 Difference]: Finished difference Result 147 states and 153 transitions. [2020-07-11 01:09:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-11 01:09:28,527 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 63 [2020-07-11 01:09:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:28,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-11 01:09:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 153 transitions. [2020-07-11 01:09:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-11 01:09:28,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 153 transitions. [2020-07-11 01:09:28,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 153 transitions. [2020-07-11 01:09:28,745 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 153 edges. 153 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:28,747 INFO L225 Difference]: With dead ends: 147 [2020-07-11 01:09:28,747 INFO L226 Difference]: Without dead ends: 101 [2020-07-11 01:09:28,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=943, Unknown=0, NotChecked=0, Total=1122 [2020-07-11 01:09:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-11 01:09:29,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87. [2020-07-11 01:09:29,310 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:29,310 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 87 states. [2020-07-11 01:09:29,311 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 87 states. [2020-07-11 01:09:29,311 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 87 states. [2020-07-11 01:09:29,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:29,318 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-07-11 01:09:29,318 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions. [2020-07-11 01:09:29,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:29,319 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:29,319 INFO L74 IsIncluded]: Start isIncluded. First operand 87 states. Second operand 101 states. [2020-07-11 01:09:29,319 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 101 states. [2020-07-11 01:09:29,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:29,322 INFO L93 Difference]: Finished difference Result 101 states and 105 transitions. [2020-07-11 01:09:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 105 transitions. [2020-07-11 01:09:29,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:29,323 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:29,323 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:29,323 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-07-11 01:09:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2020-07-11 01:09:29,325 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 63 [2020-07-11 01:09:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:29,325 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2020-07-11 01:09:29,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-11 01:09:29,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 87 states and 91 transitions. [2020-07-11 01:09:29,602 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:29,602 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2020-07-11 01:09:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-11 01:09:29,603 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:29,603 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:29,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-11 01:09:29,604 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:29,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:29,604 INFO L82 PathProgramCache]: Analyzing trace with hash -80620955, now seen corresponding path program 1 times [2020-07-11 01:09:29,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:29,604 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091624314] [2020-07-11 01:09:29,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 01:09:30,947 INFO L280 TraceCheckUtils]: 0: Hoare triple {8697#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8668#true} is VALID [2020-07-11 01:09:30,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {8668#true} #valid := #valid[0 := 0]; {8668#true} is VALID [2020-07-11 01:09:30,948 INFO L280 TraceCheckUtils]: 2: Hoare triple {8668#true} assume 0 < #StackHeapBarrier; {8668#true} is VALID [2020-07-11 01:09:30,948 INFO L280 TraceCheckUtils]: 3: Hoare triple {8668#true} assume true; {8668#true} is VALID [2020-07-11 01:09:30,948 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8668#true} {8668#true} #196#return; {8668#true} is VALID [2020-07-11 01:09:30,949 INFO L263 TraceCheckUtils]: 0: Hoare triple {8668#true} call ULTIMATE.init(); {8697#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-11 01:09:30,950 INFO L280 TraceCheckUtils]: 1: Hoare triple {8697#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8668#true} is VALID [2020-07-11 01:09:30,950 INFO L280 TraceCheckUtils]: 2: Hoare triple {8668#true} #valid := #valid[0 := 0]; {8668#true} is VALID [2020-07-11 01:09:30,950 INFO L280 TraceCheckUtils]: 3: Hoare triple {8668#true} assume 0 < #StackHeapBarrier; {8668#true} is VALID [2020-07-11 01:09:30,950 INFO L280 TraceCheckUtils]: 4: Hoare triple {8668#true} assume true; {8668#true} is VALID [2020-07-11 01:09:30,950 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8668#true} {8668#true} #196#return; {8668#true} is VALID [2020-07-11 01:09:30,950 INFO L263 TraceCheckUtils]: 6: Hoare triple {8668#true} call #t~ret17 := main(); {8668#true} is VALID [2020-07-11 01:09:30,952 INFO L280 TraceCheckUtils]: 7: Hoare triple {8668#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(8); srcloc: mainENTRY {8675#(and (= 1 (select |#valid| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))} is VALID [2020-07-11 01:09:30,952 INFO L280 TraceCheckUtils]: 8: Hoare triple {8675#(and (= 1 (select |#valid| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-11 01:09:30,953 INFO L280 TraceCheckUtils]: 9: Hoare triple {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L995 {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-11 01:09:30,954 INFO L280 TraceCheckUtils]: 10: Hoare triple {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L995-1 {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-11 01:09:30,955 INFO L280 TraceCheckUtils]: 11: Hoare triple {8676#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(8); srcloc: L996 {8677#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)) (= 0 |main_#t~malloc1.offset|) (= |main_#t~malloc1.offset| main_~null~0.offset))} is VALID [2020-07-11 01:09:30,956 INFO L280 TraceCheckUtils]: 12: Hoare triple {8677#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)) (= 0 |main_#t~malloc1.offset|) (= |main_#t~malloc1.offset| main_~null~0.offset))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,957 INFO L280 TraceCheckUtils]: 13: Hoare triple {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L999 {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,958 INFO L280 TraceCheckUtils]: 14: Hoare triple {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L999-1 {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,959 INFO L280 TraceCheckUtils]: 15: Hoare triple {8678#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,960 INFO L280 TraceCheckUtils]: 16: Hoare triple {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,961 INFO L280 TraceCheckUtils]: 17: Hoare triple {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,962 INFO L280 TraceCheckUtils]: 18: Hoare triple {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,963 INFO L280 TraceCheckUtils]: 19: Hoare triple {8679#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(8); srcloc: L1008 {8680#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= main_~list~0.offset main_~end~0.offset) (= |main_#t~malloc3.offset| main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (or (= main_~list~0.base main_~null~0.base) (= 1 (select |#valid| main_~null~0.base))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,965 INFO L280 TraceCheckUtils]: 20: Hoare triple {8680#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= main_~list~0.offset main_~end~0.offset) (= |main_#t~malloc3.offset| main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (or (= main_~list~0.base main_~null~0.base) (= 1 (select |#valid| main_~null~0.base))) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1008-1 {8681#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (or (= main_~list~0.base main_~null~0.base) (= 1 (select |#valid| main_~null~0.base))) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-11 01:09:30,966 INFO L280 TraceCheckUtils]: 21: Hoare triple {8681#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (or (= main_~list~0.base main_~null~0.base) (= 1 (select |#valid| main_~null~0.base))) (= main_~list~0.offset main_~null~0.offset) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1008-2 {8682#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= 1 (select |#valid| |main_#t~mem4.base|)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (and (= main_~null~0.offset |main_#t~mem4.offset|) (= 1 (select |#valid| main_~null~0.base))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-11 01:09:30,968 INFO L280 TraceCheckUtils]: 22: Hoare triple {8682#(and (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~list~0.base)) (= 1 (select |#valid| |main_#t~mem4.base|)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (and (= main_~null~0.offset |main_#t~mem4.offset|) (= 1 (select |#valid| main_~null~0.base))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= main_~list~0.offset main_~null~0.offset) (= |main_#t~mem4.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem4.base, #t~mem4.offset; {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,969 INFO L280 TraceCheckUtils]: 23: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem4.base, #t~mem4.offset; {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,971 INFO L280 TraceCheckUtils]: 24: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1010 {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,973 INFO L280 TraceCheckUtils]: 25: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet5 && #t~nondet5 <= 2147483647; {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,974 INFO L280 TraceCheckUtils]: 26: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} assume !(0 != #t~nondet5); {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,975 INFO L280 TraceCheckUtils]: 27: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet5; {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,977 INFO L280 TraceCheckUtils]: 28: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~int(~unnamed1~0~RED, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1018 {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-11 01:09:30,979 INFO L280 TraceCheckUtils]: 29: Hoare triple {8683#(and (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (= 1 (select |#valid| main_~null~0.base)))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc6.base, #t~malloc6.offset := #Ultimate.allocOnHeap(8); srcloc: L1018-1 {8684#(and (= main_~list~0.offset |main_#t~malloc6.offset|) (= (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.offset|)) main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (not (= |main_#t~malloc6.base| main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (or (and (= main_~end~0.offset main_~null~0.offset) (not (= |main_#t~malloc6.base| main_~null~0.base))) (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.base|)) main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.base|)) main_~list~0.base) main_~list~0.offset) main_~end~0.base))} is VALID [2020-07-11 01:09:30,980 INFO L280 TraceCheckUtils]: 30: Hoare triple {8684#(and (= main_~list~0.offset |main_#t~malloc6.offset|) (= (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.offset|)) main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (not (= |main_#t~malloc6.base| main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (or (and (= main_~end~0.offset main_~null~0.offset) (not (= |main_#t~malloc6.base| main_~null~0.base))) (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.base|)) main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset |main_#t~malloc6.base|)) main_~list~0.base) main_~list~0.offset) main_~end~0.base))} SUMMARY for call write~$Pointer$(#t~malloc6.base, #t~malloc6.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1019 {8685#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~list~0.offset (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-11 01:09:30,982 INFO L280 TraceCheckUtils]: 31: Hoare triple {8685#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (or (= main_~list~0.base main_~null~0.base) (and (= main_~end~0.offset main_~null~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= main_~list~0.offset (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} SUMMARY for call #t~mem7.base, #t~mem7.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1019-1 {8686#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (not (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset))) (= main_~list~0.offset main_~null~0.offset) (= |main_#t~mem7.offset| main_~list~0.offset))} is VALID [2020-07-11 01:09:30,983 INFO L280 TraceCheckUtils]: 32: Hoare triple {8686#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (not (= |main_#t~mem7.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset))) (= main_~list~0.offset main_~null~0.offset) (= |main_#t~mem7.offset| main_~list~0.offset))} ~end~0.base, ~end~0.offset := #t~mem7.base, #t~mem7.offset; {8687#(and (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (or (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base))) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base)))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,984 INFO L280 TraceCheckUtils]: 33: Hoare triple {8687#(and (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (or (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base))) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base)))) (= main_~list~0.offset main_~null~0.offset))} havoc #t~mem7.base, #t~mem7.offset; {8687#(and (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (or (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base))) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base)))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,986 INFO L280 TraceCheckUtils]: 34: Hoare triple {8687#(and (= main_~null~0.offset (select (select (store |#memory_$Pointer$.offset| main_~end~0.base (store (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset main_~null~0.offset)) main_~list~0.base) main_~list~0.offset)) (or (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (= main_~list~0.base main_~null~0.base) (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~null~0.base) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base))) (not (= (select (select (store |#memory_$Pointer$.base| main_~end~0.base (store (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset main_~null~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base)))) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1021 {8688#(and (or (and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset)) (and (= main_~list~0.offset main_~end~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= main_~list~0.base main_~end~0.base))) (= main_~list~0.offset main_~null~0.offset) (or (and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base)))))} is VALID [2020-07-11 01:09:30,988 INFO L280 TraceCheckUtils]: 35: Hoare triple {8688#(and (or (and (not (= main_~list~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset)) (and (= main_~list~0.offset main_~end~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= main_~list~0.base main_~end~0.base))) (= main_~list~0.offset main_~null~0.offset) (or (and (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (= main_~list~0.base main_~end~0.base)) (and (not (= main_~list~0.base main_~end~0.base)) (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~end~0.base)))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1021-1 {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,989 INFO L280 TraceCheckUtils]: 36: Hoare triple {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,990 INFO L280 TraceCheckUtils]: 37: Hoare triple {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} assume !(0 != #t~nondet2); {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,991 INFO L280 TraceCheckUtils]: 38: Hoare triple {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} havoc #t~nondet2; {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,991 INFO L280 TraceCheckUtils]: 39: Hoare triple {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,992 INFO L280 TraceCheckUtils]: 40: Hoare triple {8689#(and (or (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~list~0.base main_~null~0.base) (= (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset) main_~null~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset) main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8690#(and (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~null~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:30,993 INFO L280 TraceCheckUtils]: 41: Hoare triple {8690#(and (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base)) (= main_~null~0.base main_~end~0.base)) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,994 INFO L280 TraceCheckUtils]: 42: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} goto; {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,995 INFO L280 TraceCheckUtils]: 43: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} SUMMARY for call #t~mem8 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1031-6 {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,996 INFO L280 TraceCheckUtils]: 44: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} assume !!(~unnamed1~0~BLACK == #t~mem8); {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,996 INFO L280 TraceCheckUtils]: 45: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} havoc #t~mem8; {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,997 INFO L280 TraceCheckUtils]: 46: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} goto; {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,998 INFO L280 TraceCheckUtils]: 47: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,998 INFO L280 TraceCheckUtils]: 48: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:30,999 INFO L280 TraceCheckUtils]: 49: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} assume !(~unnamed1~0~RED == #t~mem9); {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:31,000 INFO L280 TraceCheckUtils]: 50: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} havoc #t~mem9; {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} is VALID [2020-07-11 01:09:31,001 INFO L280 TraceCheckUtils]: 51: Hoare triple {8691#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) main_~null~0.offset) (or (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) main_~null~0.offset) main_~null~0.base))))} SUMMARY for call #t~mem12.base, #t~mem12.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1035-4 {8692#(and (= |main_#t~mem12.offset| main_~null~0.offset) (or (= |main_#t~mem12.base| main_~null~0.base) (not (= main_~null~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) main_~null~0.offset)))))} is VALID [2020-07-11 01:09:31,002 INFO L280 TraceCheckUtils]: 52: Hoare triple {8692#(and (= |main_#t~mem12.offset| main_~null~0.offset) (or (= |main_#t~mem12.base| main_~null~0.base) (not (= main_~null~0.base (select (select |#memory_$Pointer$.base| |main_#t~mem12.base|) main_~null~0.offset)))))} ~end~0.base, ~end~0.offset := #t~mem12.base, #t~mem12.offset; {8693#(and (or (= main_~null~0.base main_~end~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= main_~end~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:31,003 INFO L280 TraceCheckUtils]: 53: Hoare triple {8693#(and (or (= main_~null~0.base main_~end~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= main_~end~0.offset main_~null~0.offset))} havoc #t~mem12.base, #t~mem12.offset; {8693#(and (or (= main_~null~0.base main_~end~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= main_~end~0.offset main_~null~0.offset))} is VALID [2020-07-11 01:09:31,003 INFO L280 TraceCheckUtils]: 54: Hoare triple {8693#(and (or (= main_~null~0.base main_~end~0.base) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))) (= main_~end~0.offset main_~null~0.offset))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:09:31,004 INFO L280 TraceCheckUtils]: 55: Hoare triple {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem9 := read~int(~end~0.base, 4 + ~end~0.offset, 4); srcloc: L1035 {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:09:31,004 INFO L280 TraceCheckUtils]: 56: Hoare triple {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} assume ~unnamed1~0~RED == #t~mem9; {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:09:31,005 INFO L280 TraceCheckUtils]: 57: Hoare triple {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} havoc #t~mem9; {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-11 01:09:31,005 INFO L280 TraceCheckUtils]: 58: Hoare triple {8694#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem10.base, #t~mem10.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1037 {8695#(not (= |main_#t~mem10.base| main_~null~0.base))} is VALID [2020-07-11 01:09:31,006 INFO L280 TraceCheckUtils]: 59: Hoare triple {8695#(not (= |main_#t~mem10.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem10.base, #t~mem10.offset; {8696#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:31,006 INFO L280 TraceCheckUtils]: 60: Hoare triple {8696#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10.base, #t~mem10.offset; {8696#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-11 01:09:31,007 INFO L280 TraceCheckUtils]: 61: Hoare triple {8696#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8669#false} is VALID [2020-07-11 01:09:31,007 INFO L280 TraceCheckUtils]: 62: Hoare triple {8669#false} assume !false; {8669#false} is VALID [2020-07-11 01:09:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 01:09:31,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091624314] [2020-07-11 01:09:31,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-11 01:09:31,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-07-11 01:09:31,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328754266] [2020-07-11 01:09:31,034 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 63 [2020-07-11 01:09:31,034 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 01:09:31,035 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2020-07-11 01:09:31,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:31,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-11 01:09:31,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 01:09:31,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-11 01:09:31,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2020-07-11 01:09:31,132 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand 25 states. [2020-07-11 01:09:33,059 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-07-11 01:09:33,313 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2020-07-11 01:09:33,744 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2020-07-11 01:09:34,644 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2020-07-11 01:09:35,079 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2020-07-11 01:09:35,444 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-07-11 01:09:36,451 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2020-07-11 01:09:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:41,760 INFO L93 Difference]: Finished difference Result 172 states and 179 transitions. [2020-07-11 01:09:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-11 01:09:41,760 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 63 [2020-07-11 01:09:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 01:09:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-11 01:09:41,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 179 transitions. [2020-07-11 01:09:41,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-11 01:09:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 179 transitions. [2020-07-11 01:09:41,766 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 35 states and 179 transitions. [2020-07-11 01:09:42,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:42,138 INFO L225 Difference]: With dead ends: 172 [2020-07-11 01:09:42,138 INFO L226 Difference]: Without dead ends: 170 [2020-07-11 01:09:42,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=491, Invalid=2589, Unknown=0, NotChecked=0, Total=3080 [2020-07-11 01:09:42,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-11 01:09:43,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 122. [2020-07-11 01:09:43,145 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 01:09:43,145 INFO L82 GeneralOperation]: Start isEquivalent. First operand 170 states. Second operand 122 states. [2020-07-11 01:09:43,145 INFO L74 IsIncluded]: Start isIncluded. First operand 170 states. Second operand 122 states. [2020-07-11 01:09:43,145 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 122 states. [2020-07-11 01:09:43,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:43,149 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2020-07-11 01:09:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 177 transitions. [2020-07-11 01:09:43,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:43,149 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:43,150 INFO L74 IsIncluded]: Start isIncluded. First operand 122 states. Second operand 170 states. [2020-07-11 01:09:43,150 INFO L87 Difference]: Start difference. First operand 122 states. Second operand 170 states. [2020-07-11 01:09:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 01:09:43,153 INFO L93 Difference]: Finished difference Result 170 states and 177 transitions. [2020-07-11 01:09:43,154 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 177 transitions. [2020-07-11 01:09:43,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 01:09:43,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 01:09:43,154 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 01:09:43,155 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 01:09:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-11 01:09:43,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 128 transitions. [2020-07-11 01:09:43,157 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 128 transitions. Word has length 63 [2020-07-11 01:09:43,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 01:09:43,157 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 128 transitions. [2020-07-11 01:09:43,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-11 01:09:43,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 122 states and 128 transitions. [2020-07-11 01:09:43,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 01:09:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 128 transitions. [2020-07-11 01:09:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-11 01:09:43,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 01:09:43,631 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-11 01:09:43,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-11 01:09:43,632 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 01:09:43,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 01:09:43,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1761981780, now seen corresponding path program 1 times [2020-07-11 01:09:43,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 01:09:43,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647959204] [2020-07-11 01:09:43,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 01:09:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:09:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-11 01:09:43,760 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-11 01:09:43,760 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-11 01:09:43,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:43,855 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L994 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L995 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L995-1 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L996 has no Hoare annotation [2020-07-11 01:09:43,856 WARN L170 areAnnotationChecker]: L998 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L999 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L999-1 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1000 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1005-5 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1027 has no Hoare annotation [2020-07-11 01:09:43,857 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1005-4 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1031-6 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1031-6 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-11 01:09:43,858 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1030-3 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1030-3 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1031 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1031 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1033-1 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1033-1 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1033-1 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-11 01:09:43,859 WARN L170 areAnnotationChecker]: L1031-1 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1031-4 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1048-4 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1048-4 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1048-4 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1035 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1009 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1031-2 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1031-2 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1031-5 has no Hoare annotation [2020-07-11 01:09:43,860 WARN L170 areAnnotationChecker]: L1031-5 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1046-1 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1048 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1035-1 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1035-1 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1009-1 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1063 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1048-1 has no Hoare annotation [2020-07-11 01:09:43,861 WARN L170 areAnnotationChecker]: L1048-1 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1035-2 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1035-3 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1048-2 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1048-3 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1037 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1035-4 has no Hoare annotation [2020-07-11 01:09:43,862 WARN L170 areAnnotationChecker]: L1010-1 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1050 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1057 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1037-1 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1042 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1012 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1012 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1050-1 has no Hoare annotation [2020-07-11 01:09:43,863 WARN L170 areAnnotationChecker]: L1057-1 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1037-2 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1042-1 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1012-1 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1012-2 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1050-2 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1057-2 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1038-4 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1038-4 has no Hoare annotation [2020-07-11 01:09:43,864 WARN L170 areAnnotationChecker]: L1038-4 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1014 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1018 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1058 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1039-6 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1039-6 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1038-3 has no Hoare annotation [2020-07-11 01:09:43,865 WARN L170 areAnnotationChecker]: L1038-3 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1018-1 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1058-1 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1039 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1039 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1019 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1039-1 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1039-4 has no Hoare annotation [2020-07-11 01:09:43,866 WARN L170 areAnnotationChecker]: L1019-1 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1052-1 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1039-2 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1039-5 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1039-5 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1020 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1053 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1020-1 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-11 01:09:43,867 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2020-07-11 01:09:43,868 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-11 01:09:43,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 01:09:43 BoogieIcfgContainer [2020-07-11 01:09:43,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 01:09:43,879 INFO L168 Benchmark]: Toolchain (without parser) took 62467.86 ms. Allocated memory was 139.5 MB in the beginning and 542.6 MB in the end (delta: 403.2 MB). Free memory was 102.1 MB in the beginning and 137.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 368.0 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,879 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.25 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,880 INFO L168 Benchmark]: Boogie Preprocessor took 72.09 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,881 INFO L168 Benchmark]: RCFGBuilder took 1006.72 ms. Allocated memory is still 203.4 MB. Free memory was 165.0 MB in the beginning and 96.3 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,885 INFO L168 Benchmark]: TraceAbstraction took 60743.23 ms. Allocated memory was 203.4 MB in the beginning and 542.6 MB in the end (delta: 339.2 MB). Free memory was 95.7 MB in the beginning and 137.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 297.7 MB. Max. memory is 7.1 GB. [2020-07-11 01:09:43,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.7 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.25 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.9 MB in the beginning and 169.0 MB in the end (delta: -67.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.09 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 165.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1006.72 ms. Allocated memory is still 203.4 MB. Free memory was 165.0 MB in the beginning and 96.3 MB in the end (delta: 68.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60743.23 ms. Allocated memory was 203.4 MB in the beginning and 542.6 MB in the end (delta: 339.2 MB). Free memory was 95.7 MB in the beginning and 137.2 MB in the end (delta: -41.6 MB). Peak memory consumption was 297.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1039]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L994] SLL* null = malloc(sizeof(SLL)); VAL [malloc(sizeof(SLL))={-1:0}, null={-1:0}] [L995] null->colour = BLACK VAL [malloc(sizeof(SLL))={-1:0}, null={-1:0}] [L996] null->next = ((void*)0) VAL [malloc(sizeof(SLL))={-1:0}, null={-1:0}] [L998] SLL* list = malloc(sizeof(SLL)); VAL [list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L999] list->next = null VAL [list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1000] list->colour = BLACK VAL [list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1002] SLL* end = list; VAL [end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1005] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1008] end->next = malloc(sizeof(SLL)) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1009] EXPR end->next VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1009] end = end->next VAL [end={-3:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1010] end->next = null VAL [end={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, end={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1018] end->colour = RED VAL [end={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1019] end->next = malloc(sizeof(SLL)) VAL [end={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1020] EXPR end->next VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1020] end = end->next VAL [end={-4:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1021] end->next = null VAL [end={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1022] end->colour = BLACK VAL [end={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1005] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, end={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1026] end = null VAL [end={-1:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1027] end = list VAL [end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1030] COND FALSE !(!(null != end)) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1031] EXPR end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1031] COND FALSE !(!(BLACK == end->colour)) VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1033] COND TRUE null != end VAL [end={-2:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1035] EXPR end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1035] COND FALSE !(RED == end->colour) VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1042] EXPR end->next VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1042] end = end->next VAL [end={-3:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1033] COND TRUE null != end VAL [end={-3:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1035] EXPR end->colour VAL [end={-3:0}, end->colour=0, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1035] COND TRUE RED == end->colour VAL [end={-3:0}, end->colour=0, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1037] EXPR end->next VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1037] end = end->next VAL [end={-4:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1038] COND FALSE !(!(null != end)) VAL [end={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1039] EXPR end->colour VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1039] COND TRUE !(BLACK != end->colour) VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] [L1039] __VERIFIER_error() VAL [end={-4:0}, list={-2:0}, malloc(sizeof(SLL))={-1:0}, malloc(sizeof(SLL))={-3:0}, malloc(sizeof(SLL))={-4:0}, malloc(sizeof(SLL))={-2:0}, null={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 98 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.5s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 724 SDtfs, 4310 SDslu, 4233 SDs, 0 SdLazy, 4674 SolverSat, 751 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 364 GetRequests, 47 SyntacticMatches, 7 SemanticMatches, 310 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1767 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 372 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 599 NumberOfCodeBlocks, 599 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 374421 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 11/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...