/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/dll-rb-sentinel-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:24:22,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:24:22,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:24:22,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 22:24:22,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 22:24:22,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 22:24:22,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 22:24:22,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 22:24:22,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 22:24:22,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 22:24:22,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 22:24:22,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 22:24:22,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:24:22,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:24:22,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:24:22,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:24:22,111 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:24:22,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:24:22,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:24:22,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:24:22,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:24:22,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:24:22,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:24:22,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:24:22,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 22:24:22,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 22:24:22,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 22:24:22,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 22:24:22,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 22:24:22,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 22:24:22,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 22:24:22,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 22:24:22,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 22:24:22,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 22:24:22,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 22:24:22,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 22:24:22,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 22:24:22,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 22:24:22,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:24:22,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:24:22,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:24:22,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 22:24:22,160 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:24:22,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:24:22,163 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:24:22,163 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:24:22,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:24:22,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:24:22,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:24:22,164 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:24:22,164 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:24:22,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:24:22,165 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:24:22,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:24:22,165 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:24:22,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:24:22,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:24:22,166 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:24:22,166 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:24:22,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:24:22,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:24:22,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:24:22,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:24:22,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:24:22,168 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 [2020-07-08 22:24:22,453 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:24:22,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:24:22,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:24:22,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:24:22,472 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:24:22,472 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-08 22:24:22,558 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a334951d/d200c1002bf94e7a8df1b397eaded9c2/FLAGe2764b7b1 [2020-07-08 22:24:23,092 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:24:23,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-08 22:24:23,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a334951d/d200c1002bf94e7a8df1b397eaded9c2/FLAGe2764b7b1 [2020-07-08 22:24:23,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a334951d/d200c1002bf94e7a8df1b397eaded9c2 [2020-07-08 22:24:23,400 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:24:23,402 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:24:23,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:24:23,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:24:23,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:24:23,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:24:23" (1/1) ... [2020-07-08 22:24:23,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df5e93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:23, skipping insertion in model container [2020-07-08 22:24:23,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:24:23" (1/1) ... [2020-07-08 22:24:23,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:24:23,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:24:24,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:24:24,028 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:24:24,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:24:24,163 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:24:24,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24 WrapperNode [2020-07-08 22:24:24,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:24:24,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:24:24,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:24:24,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:24:24,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (1/1) ... [2020-07-08 22:24:24,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:24:24,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:24:24,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:24:24,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:24:24,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (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 [2020-07-08 22:24:24,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:24:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:24:24,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:24:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 22:24:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 22:24:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 22:24:24,320 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 22:24:24,321 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 22:24:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 22:24:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 22:24:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 22:24:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 22:24:24,322 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 22:24:24,323 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 22:24:24,324 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 22:24:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 22:24:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 22:24:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 22:24:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 22:24:24,325 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 22:24:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 22:24:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 22:24:24,328 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 22:24:24,329 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 22:24:24,330 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 22:24:24,331 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 22:24:24,332 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 22:24:24,333 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 22:24:24,334 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:24:24,335 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 22:24:24,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:24:24,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:24:25,185 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:24:25,185 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-07-08 22:24:25,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:24:25 BoogieIcfgContainer [2020-07-08 22:24:25,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:24:25,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:24:25,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:24:25,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:24:25,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:24:23" (1/3) ... [2020-07-08 22:24:25,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590d57f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:24:25, skipping insertion in model container [2020-07-08 22:24:25,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:24:24" (2/3) ... [2020-07-08 22:24:25,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590d57f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:24:25, skipping insertion in model container [2020-07-08 22:24:25,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:24:25" (3/3) ... [2020-07-08 22:24:25,198 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-07-08 22:24:25,210 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:24:25,218 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-08 22:24:25,233 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-08 22:24:25,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:24:25,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:24:25,251 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:24:25,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:24:25,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:24:25,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:24:25,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:24:25,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:24:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-07-08 22:24:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-08 22:24:25,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:25,282 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] [2020-07-08 22:24:25,283 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:25,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:25,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-07-08 22:24:25,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:25,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1541352454] [2020-07-08 22:24:25,299 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:25,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {133#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {126#true} is VALID [2020-07-08 22:24:25,558 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-08 22:24:25,559 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-08 22:24:25,559 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-08 22:24:25,560 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-08 22:24:25,565 INFO L263 TraceCheckUtils]: 0: Hoare triple {126#true} call ULTIMATE.init(); {133#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:25,565 INFO L280 TraceCheckUtils]: 1: Hoare triple {133#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {126#true} is VALID [2020-07-08 22:24:25,565 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-08 22:24:25,566 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-08 22:24:25,566 INFO L280 TraceCheckUtils]: 4: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-08 22:24:25,566 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-08 22:24:25,567 INFO L263 TraceCheckUtils]: 6: Hoare triple {126#true} call #t~ret21 := main(); {126#true} is VALID [2020-07-08 22:24:25,567 INFO L280 TraceCheckUtils]: 7: Hoare triple {126#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {126#true} is VALID [2020-07-08 22:24:25,568 INFO L280 TraceCheckUtils]: 8: Hoare triple {126#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {126#true} is VALID [2020-07-08 22:24:25,568 INFO L280 TraceCheckUtils]: 9: Hoare triple {126#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {126#true} is VALID [2020-07-08 22:24:25,568 INFO L280 TraceCheckUtils]: 10: Hoare triple {126#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {126#true} is VALID [2020-07-08 22:24:25,569 INFO L280 TraceCheckUtils]: 11: Hoare triple {126#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {126#true} is VALID [2020-07-08 22:24:25,569 INFO L280 TraceCheckUtils]: 12: Hoare triple {126#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {126#true} is VALID [2020-07-08 22:24:25,569 INFO L280 TraceCheckUtils]: 13: Hoare triple {126#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {126#true} is VALID [2020-07-08 22:24:25,570 INFO L280 TraceCheckUtils]: 14: Hoare triple {126#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {126#true} is VALID [2020-07-08 22:24:25,570 INFO L280 TraceCheckUtils]: 15: Hoare triple {126#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {126#true} is VALID [2020-07-08 22:24:25,570 INFO L280 TraceCheckUtils]: 16: Hoare triple {126#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {126#true} is VALID [2020-07-08 22:24:25,571 INFO L280 TraceCheckUtils]: 17: Hoare triple {126#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {126#true} is VALID [2020-07-08 22:24:25,572 INFO L280 TraceCheckUtils]: 18: Hoare triple {126#true} assume !true; {127#false} is VALID [2020-07-08 22:24:25,573 INFO L280 TraceCheckUtils]: 19: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {127#false} is VALID [2020-07-08 22:24:25,573 INFO L280 TraceCheckUtils]: 20: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {127#false} is VALID [2020-07-08 22:24:25,574 INFO L280 TraceCheckUtils]: 21: Hoare triple {127#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {127#false} is VALID [2020-07-08 22:24:25,574 INFO L280 TraceCheckUtils]: 22: Hoare triple {127#false} assume !false; {127#false} is VALID [2020-07-08 22:24:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:25,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1541352454] [2020-07-08 22:24:25,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:25,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 22:24:25,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886657998] [2020-07-08 22:24:25,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-08 22:24:25,591 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:25,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 22:24:25,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:25,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 22:24:25,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:25,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 22:24:25,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 22:24:25,654 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-07-08 22:24:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:26,277 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-07-08 22:24:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 22:24:26,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-08 22:24:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:26,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:24:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 22:24:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 22:24:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 22:24:26,309 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-08 22:24:26,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:26,684 INFO L225 Difference]: With dead ends: 228 [2020-07-08 22:24:26,685 INFO L226 Difference]: Without dead ends: 100 [2020-07-08 22:24:26,689 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 [2020-07-08 22:24:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-08 22:24:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-08 22:24:26,778 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:26,779 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 100 states. [2020-07-08 22:24:26,780 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-08 22:24:26,780 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-08 22:24:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:26,787 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-08 22:24:26,788 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 22:24:26,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:26,789 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:26,789 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-08 22:24:26,790 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-08 22:24:26,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:26,797 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-08 22:24:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 22:24:26,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:26,799 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:26,799 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:26,799 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:26,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-08 22:24:26,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-07-08 22:24:26,806 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-07-08 22:24:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:26,807 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-07-08 22:24:26,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 22:24:26,807 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 103 transitions. [2020-07-08 22:24:26,918 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 103 edges. 103 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:26,918 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 22:24:26,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 22:24:26,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:26,920 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] [2020-07-08 22:24:26,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:24:26,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:26,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:26,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-07-08 22:24:26,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:26,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1619512827] [2020-07-08 22:24:26,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:26,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:27,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {1004#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {992#true} is VALID [2020-07-08 22:24:27,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-08 22:24:27,156 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-08 22:24:27,157 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-08 22:24:27,157 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-08 22:24:27,159 INFO L263 TraceCheckUtils]: 0: Hoare triple {992#true} call ULTIMATE.init(); {1004#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:27,159 INFO L280 TraceCheckUtils]: 1: Hoare triple {1004#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {992#true} is VALID [2020-07-08 22:24:27,159 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-08 22:24:27,160 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-08 22:24:27,160 INFO L280 TraceCheckUtils]: 4: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-08 22:24:27,160 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-08 22:24:27,160 INFO L263 TraceCheckUtils]: 6: Hoare triple {992#true} call #t~ret21 := main(); {992#true} is VALID [2020-07-08 22:24:27,162 INFO L280 TraceCheckUtils]: 7: Hoare triple {992#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {999#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-08 22:24:27,163 INFO L280 TraceCheckUtils]: 8: Hoare triple {999#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {1000#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:27,164 INFO L280 TraceCheckUtils]: 9: Hoare triple {1000#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {1000#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:27,165 INFO L280 TraceCheckUtils]: 10: Hoare triple {1000#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {1000#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:27,165 INFO L280 TraceCheckUtils]: 11: Hoare triple {1000#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {1000#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:27,166 INFO L280 TraceCheckUtils]: 12: Hoare triple {1000#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {1001#(not (= |main_#t~malloc1.base| main_~null~0.base))} is VALID [2020-07-08 22:24:27,167 INFO L280 TraceCheckUtils]: 13: Hoare triple {1001#(not (= |main_#t~malloc1.base| main_~null~0.base))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,168 INFO L280 TraceCheckUtils]: 14: Hoare triple {1002#(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: L993 {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,169 INFO L280 TraceCheckUtils]: 15: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,170 INFO L280 TraceCheckUtils]: 16: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,170 INFO L280 TraceCheckUtils]: 17: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,171 INFO L280 TraceCheckUtils]: 18: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,172 INFO L280 TraceCheckUtils]: 19: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} assume !(0 != #t~nondet2); {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,173 INFO L280 TraceCheckUtils]: 20: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} havoc #t~nondet2; {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,174 INFO L280 TraceCheckUtils]: 21: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {1002#(not (= main_~list~0.base main_~null~0.base))} is VALID [2020-07-08 22:24:27,175 INFO L280 TraceCheckUtils]: 22: Hoare triple {1002#(not (= main_~list~0.base main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1003#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:27,175 INFO L280 TraceCheckUtils]: 23: Hoare triple {1003#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {993#false} is VALID [2020-07-08 22:24:27,176 INFO L280 TraceCheckUtils]: 24: Hoare triple {993#false} assume !false; {993#false} is VALID [2020-07-08 22:24:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:27,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1619512827] [2020-07-08 22:24:27,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:27,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 22:24:27,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892590371] [2020-07-08 22:24:27,180 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-08 22:24:27,181 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:27,181 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 22:24:27,211 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:27,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 22:24:27,211 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:27,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 22:24:27,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-08 22:24:27,212 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-07-08 22:24:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:28,432 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-07-08 22:24:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-08 22:24:28,432 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-08 22:24:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:24:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-08 22:24:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 22:24:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-08 22:24:28,439 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 126 transitions. [2020-07-08 22:24:28,608 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:28,612 INFO L225 Difference]: With dead ends: 121 [2020-07-08 22:24:28,613 INFO L226 Difference]: Without dead ends: 119 [2020-07-08 22:24:28,614 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 [2020-07-08 22:24:28,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-08 22:24:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-07-08 22:24:28,854 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:28,854 INFO L82 GeneralOperation]: Start isEquivalent. First operand 119 states. Second operand 98 states. [2020-07-08 22:24:28,854 INFO L74 IsIncluded]: Start isIncluded. First operand 119 states. Second operand 98 states. [2020-07-08 22:24:28,855 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 98 states. [2020-07-08 22:24:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:28,867 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-08 22:24:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-08 22:24:28,870 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:28,872 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:28,873 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 119 states. [2020-07-08 22:24:28,873 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 119 states. [2020-07-08 22:24:28,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:28,882 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-08 22:24:28,882 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-08 22:24:28,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:28,888 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:28,888 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:28,888 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-07-08 22:24:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-07-08 22:24:28,893 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-07-08 22:24:28,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:28,894 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-07-08 22:24:28,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 22:24:28,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 98 states and 101 transitions. [2020-07-08 22:24:29,033 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-07-08 22:24:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-08 22:24:29,035 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:29,036 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] [2020-07-08 22:24:29,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 22:24:29,037 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-07-08 22:24:29,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:29,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373972932] [2020-07-08 22:24:29,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:29,422 INFO L280 TraceCheckUtils]: 0: Hoare triple {1706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-08 22:24:29,423 INFO L280 TraceCheckUtils]: 1: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-08 22:24:29,423 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-08 22:24:29,423 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-08 22:24:29,424 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-08 22:24:29,425 INFO L263 TraceCheckUtils]: 0: Hoare triple {1691#true} call ULTIMATE.init(); {1706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:29,425 INFO L280 TraceCheckUtils]: 1: Hoare triple {1706#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-08 22:24:29,425 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-08 22:24:29,426 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-08 22:24:29,426 INFO L280 TraceCheckUtils]: 4: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-08 22:24:29,426 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-08 22:24:29,427 INFO L263 TraceCheckUtils]: 6: Hoare triple {1691#true} call #t~ret21 := main(); {1691#true} is VALID [2020-07-08 22:24:29,427 INFO L280 TraceCheckUtils]: 7: Hoare triple {1691#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {1698#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:24:29,428 INFO L280 TraceCheckUtils]: 8: Hoare triple {1698#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {1699#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:29,429 INFO L280 TraceCheckUtils]: 9: Hoare triple {1699#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {1699#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:29,430 INFO L280 TraceCheckUtils]: 10: Hoare triple {1699#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {1699#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:29,430 INFO L280 TraceCheckUtils]: 11: Hoare triple {1699#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {1699#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:29,431 INFO L280 TraceCheckUtils]: 12: Hoare triple {1699#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {1700#(and (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-08 22:24:29,432 INFO L280 TraceCheckUtils]: 13: Hoare triple {1700#(and (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {1701#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:29,433 INFO L280 TraceCheckUtils]: 14: Hoare triple {1701#(and (= 0 main_~null~0.offset) (= 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: L993 {1701#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:29,434 INFO L280 TraceCheckUtils]: 15: Hoare triple {1701#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {1701#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:29,435 INFO L280 TraceCheckUtils]: 16: Hoare triple {1701#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,436 INFO L280 TraceCheckUtils]: 17: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,437 INFO L280 TraceCheckUtils]: 18: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,438 INFO L280 TraceCheckUtils]: 19: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet2); {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,439 INFO L280 TraceCheckUtils]: 20: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,440 INFO L280 TraceCheckUtils]: 21: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:29,440 INFO L280 TraceCheckUtils]: 22: Hoare triple {1702#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {1703#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:24:29,441 INFO L280 TraceCheckUtils]: 23: Hoare triple {1703#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {1704#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:29,441 INFO L280 TraceCheckUtils]: 24: Hoare triple {1704#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {1704#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:29,442 INFO L280 TraceCheckUtils]: 25: Hoare triple {1704#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {1705#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-08 22:24:29,446 INFO L280 TraceCheckUtils]: 26: Hoare triple {1705#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {1692#false} is VALID [2020-07-08 22:24:29,446 INFO L280 TraceCheckUtils]: 27: Hoare triple {1692#false} havoc #t~mem12; {1692#false} is VALID [2020-07-08 22:24:29,446 INFO L280 TraceCheckUtils]: 28: Hoare triple {1692#false} assume !false; {1692#false} is VALID [2020-07-08 22:24:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:29,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [373972932] [2020-07-08 22:24:29,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:29,450 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 22:24:29,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648643601] [2020-07-08 22:24:29,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-08 22:24:29,451 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:29,452 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 22:24:29,493 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:29,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 22:24:29,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:29,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 22:24:29,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 22:24:29,494 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 11 states. [2020-07-08 22:24:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:31,754 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2020-07-08 22:24:31,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 22:24:31,755 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-08 22:24:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:31,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 22:24:31,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 154 transitions. [2020-07-08 22:24:31,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 22:24:31,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 154 transitions. [2020-07-08 22:24:31,763 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 154 transitions. [2020-07-08 22:24:31,968 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 154 edges. 154 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:31,972 INFO L225 Difference]: With dead ends: 148 [2020-07-08 22:24:31,972 INFO L226 Difference]: Without dead ends: 145 [2020-07-08 22:24:31,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2020-07-08 22:24:31,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-08 22:24:32,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 107. [2020-07-08 22:24:32,401 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:32,401 INFO L82 GeneralOperation]: Start isEquivalent. First operand 145 states. Second operand 107 states. [2020-07-08 22:24:32,402 INFO L74 IsIncluded]: Start isIncluded. First operand 145 states. Second operand 107 states. [2020-07-08 22:24:32,402 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 107 states. [2020-07-08 22:24:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:32,408 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2020-07-08 22:24:32,409 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2020-07-08 22:24:32,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:32,410 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:32,410 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 145 states. [2020-07-08 22:24:32,410 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 145 states. [2020-07-08 22:24:32,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:32,416 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2020-07-08 22:24:32,416 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2020-07-08 22:24:32,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:32,417 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:32,417 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:32,417 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:32,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-08 22:24:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-08 22:24:32,421 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-07-08 22:24:32,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:32,421 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-08 22:24:32,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 22:24:32,422 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-08 22:24:32,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:32,622 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 22:24:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-08 22:24:32,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:32,623 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, 1, 1] [2020-07-08 22:24:32,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 22:24:32,624 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:32,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:32,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-07-08 22:24:32,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:32,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115880793] [2020-07-08 22:24:32,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:32,862 INFO L280 TraceCheckUtils]: 0: Hoare triple {2537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2527#true} is VALID [2020-07-08 22:24:32,862 INFO L280 TraceCheckUtils]: 1: Hoare triple {2527#true} #valid := #valid[0 := 0]; {2527#true} is VALID [2020-07-08 22:24:32,862 INFO L280 TraceCheckUtils]: 2: Hoare triple {2527#true} assume 0 < #StackHeapBarrier; {2527#true} is VALID [2020-07-08 22:24:32,863 INFO L280 TraceCheckUtils]: 3: Hoare triple {2527#true} assume true; {2527#true} is VALID [2020-07-08 22:24:32,863 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2527#true} {2527#true} #260#return; {2527#true} is VALID [2020-07-08 22:24:32,864 INFO L263 TraceCheckUtils]: 0: Hoare triple {2527#true} call ULTIMATE.init(); {2537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:32,864 INFO L280 TraceCheckUtils]: 1: Hoare triple {2537#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2527#true} is VALID [2020-07-08 22:24:32,864 INFO L280 TraceCheckUtils]: 2: Hoare triple {2527#true} #valid := #valid[0 := 0]; {2527#true} is VALID [2020-07-08 22:24:32,865 INFO L280 TraceCheckUtils]: 3: Hoare triple {2527#true} assume 0 < #StackHeapBarrier; {2527#true} is VALID [2020-07-08 22:24:32,865 INFO L280 TraceCheckUtils]: 4: Hoare triple {2527#true} assume true; {2527#true} is VALID [2020-07-08 22:24:32,865 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2527#true} {2527#true} #260#return; {2527#true} is VALID [2020-07-08 22:24:32,865 INFO L263 TraceCheckUtils]: 6: Hoare triple {2527#true} call #t~ret21 := main(); {2527#true} is VALID [2020-07-08 22:24:32,866 INFO L280 TraceCheckUtils]: 7: Hoare triple {2527#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {2527#true} is VALID [2020-07-08 22:24:32,866 INFO L280 TraceCheckUtils]: 8: Hoare triple {2527#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {2527#true} is VALID [2020-07-08 22:24:32,866 INFO L280 TraceCheckUtils]: 9: Hoare triple {2527#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {2527#true} is VALID [2020-07-08 22:24:32,866 INFO L280 TraceCheckUtils]: 10: Hoare triple {2527#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {2527#true} is VALID [2020-07-08 22:24:32,867 INFO L280 TraceCheckUtils]: 11: Hoare triple {2527#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {2527#true} is VALID [2020-07-08 22:24:32,867 INFO L280 TraceCheckUtils]: 12: Hoare triple {2527#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {2527#true} is VALID [2020-07-08 22:24:32,867 INFO L280 TraceCheckUtils]: 13: Hoare triple {2527#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {2527#true} is VALID [2020-07-08 22:24:32,867 INFO L280 TraceCheckUtils]: 14: Hoare triple {2527#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {2527#true} is VALID [2020-07-08 22:24:32,868 INFO L280 TraceCheckUtils]: 15: Hoare triple {2527#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {2527#true} is VALID [2020-07-08 22:24:32,868 INFO L280 TraceCheckUtils]: 16: Hoare triple {2527#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {2527#true} is VALID [2020-07-08 22:24:32,868 INFO L280 TraceCheckUtils]: 17: Hoare triple {2527#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2527#true} is VALID [2020-07-08 22:24:32,868 INFO L280 TraceCheckUtils]: 18: Hoare triple {2527#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2527#true} is VALID [2020-07-08 22:24:32,869 INFO L280 TraceCheckUtils]: 19: Hoare triple {2527#true} assume !(0 != #t~nondet2); {2527#true} is VALID [2020-07-08 22:24:32,869 INFO L280 TraceCheckUtils]: 20: Hoare triple {2527#true} havoc #t~nondet2; {2527#true} is VALID [2020-07-08 22:24:32,869 INFO L280 TraceCheckUtils]: 21: Hoare triple {2527#true} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {2527#true} is VALID [2020-07-08 22:24:32,869 INFO L280 TraceCheckUtils]: 22: Hoare triple {2527#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2527#true} is VALID [2020-07-08 22:24:32,870 INFO L280 TraceCheckUtils]: 23: Hoare triple {2527#true} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2527#true} is VALID [2020-07-08 22:24:32,870 INFO L280 TraceCheckUtils]: 24: Hoare triple {2527#true} goto; {2527#true} is VALID [2020-07-08 22:24:32,871 INFO L280 TraceCheckUtils]: 25: Hoare triple {2527#true} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {2534#(= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:32,872 INFO L280 TraceCheckUtils]: 26: Hoare triple {2534#(= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} assume !!(~unnamed1~0~BLACK == #t~mem12); {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:32,873 INFO L280 TraceCheckUtils]: 27: Hoare triple {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} havoc #t~mem12; {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:32,878 INFO L280 TraceCheckUtils]: 28: Hoare triple {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:32,881 INFO L280 TraceCheckUtils]: 29: Hoare triple {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:32,882 INFO L280 TraceCheckUtils]: 30: Hoare triple {2535#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {2536#(= ~unnamed1~0~BLACK |main_#t~mem13|)} is VALID [2020-07-08 22:24:32,883 INFO L280 TraceCheckUtils]: 31: Hoare triple {2536#(= ~unnamed1~0~BLACK |main_#t~mem13|)} assume ~unnamed1~0~RED == #t~mem13; {2528#false} is VALID [2020-07-08 22:24:32,883 INFO L280 TraceCheckUtils]: 32: Hoare triple {2528#false} havoc #t~mem13; {2528#false} is VALID [2020-07-08 22:24:32,884 INFO L280 TraceCheckUtils]: 33: Hoare triple {2528#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {2528#false} is VALID [2020-07-08 22:24:32,884 INFO L280 TraceCheckUtils]: 34: Hoare triple {2528#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {2528#false} is VALID [2020-07-08 22:24:32,884 INFO L280 TraceCheckUtils]: 35: Hoare triple {2528#false} havoc #t~mem14.base, #t~mem14.offset; {2528#false} is VALID [2020-07-08 22:24:32,884 INFO L280 TraceCheckUtils]: 36: Hoare triple {2528#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2528#false} is VALID [2020-07-08 22:24:32,885 INFO L280 TraceCheckUtils]: 37: Hoare triple {2528#false} assume !false; {2528#false} is VALID [2020-07-08 22:24:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:32,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115880793] [2020-07-08 22:24:32,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:32,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 22:24:32,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744966346] [2020-07-08 22:24:32,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 22:24:32,897 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:32,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 22:24:32,934 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:32,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 22:24:32,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:32,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 22:24:32,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:24:32,935 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-07-08 22:24:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:34,111 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2020-07-08 22:24:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 22:24:34,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 22:24:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:24:34,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-08 22:24:34,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 22:24:34,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-08 22:24:34,117 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 141 transitions. [2020-07-08 22:24:34,271 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:34,274 INFO L225 Difference]: With dead ends: 140 [2020-07-08 22:24:34,274 INFO L226 Difference]: Without dead ends: 118 [2020-07-08 22:24:34,275 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 [2020-07-08 22:24:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-07-08 22:24:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2020-07-08 22:24:34,763 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:34,763 INFO L82 GeneralOperation]: Start isEquivalent. First operand 118 states. Second operand 110 states. [2020-07-08 22:24:34,763 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 110 states. [2020-07-08 22:24:34,763 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 110 states. [2020-07-08 22:24:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:34,770 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-08 22:24:34,770 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-08 22:24:34,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:34,770 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:34,771 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 118 states. [2020-07-08 22:24:34,771 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 118 states. [2020-07-08 22:24:34,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:34,776 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-08 22:24:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-08 22:24:34,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:34,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:34,778 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:34,778 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:34,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-08 22:24:34,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-07-08 22:24:34,782 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 38 [2020-07-08 22:24:34,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:34,782 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-07-08 22:24:34,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 22:24:34,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 114 transitions. [2020-07-08 22:24:34,989 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:34,990 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-07-08 22:24:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-08 22:24:34,991 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:34,991 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, 1, 1] [2020-07-08 22:24:34,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 22:24:34,992 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-07-08 22:24:34,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:34,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255534092] [2020-07-08 22:24:34,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:35,071 INFO L280 TraceCheckUtils]: 0: Hoare triple {3289#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3280#true} is VALID [2020-07-08 22:24:35,071 INFO L280 TraceCheckUtils]: 1: Hoare triple {3280#true} #valid := #valid[0 := 0]; {3280#true} is VALID [2020-07-08 22:24:35,071 INFO L280 TraceCheckUtils]: 2: Hoare triple {3280#true} assume 0 < #StackHeapBarrier; {3280#true} is VALID [2020-07-08 22:24:35,072 INFO L280 TraceCheckUtils]: 3: Hoare triple {3280#true} assume true; {3280#true} is VALID [2020-07-08 22:24:35,072 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3280#true} {3280#true} #260#return; {3280#true} is VALID [2020-07-08 22:24:35,076 INFO L263 TraceCheckUtils]: 0: Hoare triple {3280#true} call ULTIMATE.init(); {3289#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:35,077 INFO L280 TraceCheckUtils]: 1: Hoare triple {3289#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3280#true} is VALID [2020-07-08 22:24:35,077 INFO L280 TraceCheckUtils]: 2: Hoare triple {3280#true} #valid := #valid[0 := 0]; {3280#true} is VALID [2020-07-08 22:24:35,077 INFO L280 TraceCheckUtils]: 3: Hoare triple {3280#true} assume 0 < #StackHeapBarrier; {3280#true} is VALID [2020-07-08 22:24:35,078 INFO L280 TraceCheckUtils]: 4: Hoare triple {3280#true} assume true; {3280#true} is VALID [2020-07-08 22:24:35,078 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3280#true} {3280#true} #260#return; {3280#true} is VALID [2020-07-08 22:24:35,078 INFO L263 TraceCheckUtils]: 6: Hoare triple {3280#true} call #t~ret21 := main(); {3280#true} is VALID [2020-07-08 22:24:35,078 INFO L280 TraceCheckUtils]: 7: Hoare triple {3280#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {3280#true} is VALID [2020-07-08 22:24:35,079 INFO L280 TraceCheckUtils]: 8: Hoare triple {3280#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3280#true} is VALID [2020-07-08 22:24:35,079 INFO L280 TraceCheckUtils]: 9: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {3280#true} is VALID [2020-07-08 22:24:35,079 INFO L280 TraceCheckUtils]: 10: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {3280#true} is VALID [2020-07-08 22:24:35,079 INFO L280 TraceCheckUtils]: 11: Hoare triple {3280#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {3280#true} is VALID [2020-07-08 22:24:35,079 INFO L280 TraceCheckUtils]: 12: Hoare triple {3280#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {3280#true} is VALID [2020-07-08 22:24:35,080 INFO L280 TraceCheckUtils]: 13: Hoare triple {3280#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3280#true} is VALID [2020-07-08 22:24:35,080 INFO L280 TraceCheckUtils]: 14: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {3280#true} is VALID [2020-07-08 22:24:35,080 INFO L280 TraceCheckUtils]: 15: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {3280#true} is VALID [2020-07-08 22:24:35,080 INFO L280 TraceCheckUtils]: 16: Hoare triple {3280#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {3280#true} is VALID [2020-07-08 22:24:35,081 INFO L280 TraceCheckUtils]: 17: Hoare triple {3280#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3280#true} is VALID [2020-07-08 22:24:35,081 INFO L280 TraceCheckUtils]: 18: Hoare triple {3280#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3280#true} is VALID [2020-07-08 22:24:35,081 INFO L280 TraceCheckUtils]: 19: Hoare triple {3280#true} assume !!(0 != #t~nondet2); {3280#true} is VALID [2020-07-08 22:24:35,081 INFO L280 TraceCheckUtils]: 20: Hoare triple {3280#true} havoc #t~nondet2; {3280#true} is VALID [2020-07-08 22:24:35,082 INFO L280 TraceCheckUtils]: 21: Hoare triple {3280#true} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {3280#true} is VALID [2020-07-08 22:24:35,082 INFO L280 TraceCheckUtils]: 22: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {3280#true} is VALID [2020-07-08 22:24:35,082 INFO L280 TraceCheckUtils]: 23: Hoare triple {3280#true} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {3280#true} is VALID [2020-07-08 22:24:35,082 INFO L280 TraceCheckUtils]: 24: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {3280#true} is VALID [2020-07-08 22:24:35,083 INFO L280 TraceCheckUtils]: 25: Hoare triple {3280#true} havoc #t~mem4.base, #t~mem4.offset; {3280#true} is VALID [2020-07-08 22:24:35,083 INFO L280 TraceCheckUtils]: 26: Hoare triple {3280#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {3280#true} is VALID [2020-07-08 22:24:35,083 INFO L280 TraceCheckUtils]: 27: Hoare triple {3280#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3280#true} is VALID [2020-07-08 22:24:35,083 INFO L280 TraceCheckUtils]: 28: Hoare triple {3280#true} havoc #t~mem5.base, #t~mem5.offset; {3280#true} is VALID [2020-07-08 22:24:35,084 INFO L280 TraceCheckUtils]: 29: Hoare triple {3280#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {3280#true} is VALID [2020-07-08 22:24:35,084 INFO L280 TraceCheckUtils]: 30: Hoare triple {3280#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {3280#true} is VALID [2020-07-08 22:24:35,084 INFO L280 TraceCheckUtils]: 31: Hoare triple {3280#true} assume 0 != #t~nondet6; {3280#true} is VALID [2020-07-08 22:24:35,084 INFO L280 TraceCheckUtils]: 32: Hoare triple {3280#true} havoc #t~nondet6; {3280#true} is VALID [2020-07-08 22:24:35,089 INFO L280 TraceCheckUtils]: 33: Hoare triple {3280#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {3287#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:35,090 INFO L280 TraceCheckUtils]: 34: Hoare triple {3287#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {3288#(= ~unnamed1~0~BLACK |main_#t~mem10|)} is VALID [2020-07-08 22:24:35,090 INFO L280 TraceCheckUtils]: 35: Hoare triple {3288#(= ~unnamed1~0~BLACK |main_#t~mem10|)} assume !(~unnamed1~0~BLACK == #t~mem10); {3281#false} is VALID [2020-07-08 22:24:35,091 INFO L280 TraceCheckUtils]: 36: Hoare triple {3281#false} havoc #t~mem10; {3281#false} is VALID [2020-07-08 22:24:35,091 INFO L280 TraceCheckUtils]: 37: Hoare triple {3281#false} assume !false; {3281#false} is VALID [2020-07-08 22:24:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:35,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255534092] [2020-07-08 22:24:35,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:35,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:24:35,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692094378] [2020-07-08 22:24:35,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-08 22:24:35,094 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:35,094 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:24:35,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:35,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:24:35,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:35,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:24:35,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:24:35,136 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 5 states. [2020-07-08 22:24:36,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:36,094 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2020-07-08 22:24:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 22:24:36,095 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-08 22:24:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:24:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-08 22:24:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:24:36,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-08 22:24:36,099 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 111 transitions. [2020-07-08 22:24:36,203 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:36,206 INFO L225 Difference]: With dead ends: 115 [2020-07-08 22:24:36,206 INFO L226 Difference]: Without dead ends: 112 [2020-07-08 22:24:36,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:24:36,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-08 22:24:36,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-07-08 22:24:36,697 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:36,697 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 107 states. [2020-07-08 22:24:36,697 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 107 states. [2020-07-08 22:24:36,698 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 107 states. [2020-07-08 22:24:36,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:36,702 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-08 22:24:36,702 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-08 22:24:36,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:36,703 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:36,703 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 112 states. [2020-07-08 22:24:36,703 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 112 states. [2020-07-08 22:24:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:36,707 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-08 22:24:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-08 22:24:36,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:36,707 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:36,708 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:36,708 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:36,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-08 22:24:36,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-08 22:24:36,711 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 38 [2020-07-08 22:24:36,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:36,712 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-08 22:24:36,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:24:36,712 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-08 22:24:36,912 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 22:24:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-08 22:24:36,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:36,914 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, 1, 1, 1, 1, 1, 1] [2020-07-08 22:24:36,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 22:24:36,915 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-07-08 22:24:36,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:36,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [651538245] [2020-07-08 22:24:36,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:37,040 INFO L280 TraceCheckUtils]: 0: Hoare triple {3971#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3962#true} is VALID [2020-07-08 22:24:37,040 INFO L280 TraceCheckUtils]: 1: Hoare triple {3962#true} #valid := #valid[0 := 0]; {3962#true} is VALID [2020-07-08 22:24:37,041 INFO L280 TraceCheckUtils]: 2: Hoare triple {3962#true} assume 0 < #StackHeapBarrier; {3962#true} is VALID [2020-07-08 22:24:37,041 INFO L280 TraceCheckUtils]: 3: Hoare triple {3962#true} assume true; {3962#true} is VALID [2020-07-08 22:24:37,041 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3962#true} {3962#true} #260#return; {3962#true} is VALID [2020-07-08 22:24:37,043 INFO L263 TraceCheckUtils]: 0: Hoare triple {3962#true} call ULTIMATE.init(); {3971#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:37,043 INFO L280 TraceCheckUtils]: 1: Hoare triple {3971#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3962#true} is VALID [2020-07-08 22:24:37,043 INFO L280 TraceCheckUtils]: 2: Hoare triple {3962#true} #valid := #valid[0 := 0]; {3962#true} is VALID [2020-07-08 22:24:37,044 INFO L280 TraceCheckUtils]: 3: Hoare triple {3962#true} assume 0 < #StackHeapBarrier; {3962#true} is VALID [2020-07-08 22:24:37,044 INFO L280 TraceCheckUtils]: 4: Hoare triple {3962#true} assume true; {3962#true} is VALID [2020-07-08 22:24:37,044 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3962#true} {3962#true} #260#return; {3962#true} is VALID [2020-07-08 22:24:37,044 INFO L263 TraceCheckUtils]: 6: Hoare triple {3962#true} call #t~ret21 := main(); {3962#true} is VALID [2020-07-08 22:24:37,045 INFO L280 TraceCheckUtils]: 7: Hoare triple {3962#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {3962#true} is VALID [2020-07-08 22:24:37,045 INFO L280 TraceCheckUtils]: 8: Hoare triple {3962#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3962#true} is VALID [2020-07-08 22:24:37,045 INFO L280 TraceCheckUtils]: 9: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {3962#true} is VALID [2020-07-08 22:24:37,045 INFO L280 TraceCheckUtils]: 10: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {3962#true} is VALID [2020-07-08 22:24:37,046 INFO L280 TraceCheckUtils]: 11: Hoare triple {3962#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {3962#true} is VALID [2020-07-08 22:24:37,046 INFO L280 TraceCheckUtils]: 12: Hoare triple {3962#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {3962#true} is VALID [2020-07-08 22:24:37,046 INFO L280 TraceCheckUtils]: 13: Hoare triple {3962#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3962#true} is VALID [2020-07-08 22:24:37,046 INFO L280 TraceCheckUtils]: 14: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {3962#true} is VALID [2020-07-08 22:24:37,047 INFO L280 TraceCheckUtils]: 15: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {3962#true} is VALID [2020-07-08 22:24:37,047 INFO L280 TraceCheckUtils]: 16: Hoare triple {3962#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {3962#true} is VALID [2020-07-08 22:24:37,047 INFO L280 TraceCheckUtils]: 17: Hoare triple {3962#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3962#true} is VALID [2020-07-08 22:24:37,047 INFO L280 TraceCheckUtils]: 18: Hoare triple {3962#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3962#true} is VALID [2020-07-08 22:24:37,048 INFO L280 TraceCheckUtils]: 19: Hoare triple {3962#true} assume !!(0 != #t~nondet2); {3962#true} is VALID [2020-07-08 22:24:37,048 INFO L280 TraceCheckUtils]: 20: Hoare triple {3962#true} havoc #t~nondet2; {3962#true} is VALID [2020-07-08 22:24:37,048 INFO L280 TraceCheckUtils]: 21: Hoare triple {3962#true} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {3962#true} is VALID [2020-07-08 22:24:37,048 INFO L280 TraceCheckUtils]: 22: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {3962#true} is VALID [2020-07-08 22:24:37,048 INFO L280 TraceCheckUtils]: 23: Hoare triple {3962#true} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {3962#true} is VALID [2020-07-08 22:24:37,049 INFO L280 TraceCheckUtils]: 24: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {3962#true} is VALID [2020-07-08 22:24:37,049 INFO L280 TraceCheckUtils]: 25: Hoare triple {3962#true} havoc #t~mem4.base, #t~mem4.offset; {3962#true} is VALID [2020-07-08 22:24:37,049 INFO L280 TraceCheckUtils]: 26: Hoare triple {3962#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {3962#true} is VALID [2020-07-08 22:24:37,050 INFO L280 TraceCheckUtils]: 27: Hoare triple {3962#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3962#true} is VALID [2020-07-08 22:24:37,050 INFO L280 TraceCheckUtils]: 28: Hoare triple {3962#true} havoc #t~mem5.base, #t~mem5.offset; {3962#true} is VALID [2020-07-08 22:24:37,051 INFO L280 TraceCheckUtils]: 29: Hoare triple {3962#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {3969#(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 [2020-07-08 22:24:37,053 INFO L280 TraceCheckUtils]: 30: Hoare triple {3969#(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 -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {3969#(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 [2020-07-08 22:24:37,053 INFO L280 TraceCheckUtils]: 31: Hoare triple {3969#(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 0 != #t~nondet6; {3969#(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 [2020-07-08 22:24:37,054 INFO L280 TraceCheckUtils]: 32: Hoare triple {3969#(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~nondet6; {3969#(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 [2020-07-08 22:24:37,055 INFO L280 TraceCheckUtils]: 33: Hoare triple {3969#(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 write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {3969#(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 [2020-07-08 22:24:37,056 INFO L280 TraceCheckUtils]: 34: Hoare triple {3969#(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~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {3969#(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 [2020-07-08 22:24:37,057 INFO L280 TraceCheckUtils]: 35: Hoare triple {3969#(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~mem10); {3969#(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 [2020-07-08 22:24:37,058 INFO L280 TraceCheckUtils]: 36: Hoare triple {3969#(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~mem10; {3969#(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 [2020-07-08 22:24:37,058 INFO L280 TraceCheckUtils]: 37: Hoare triple {3969#(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; {3969#(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 [2020-07-08 22:24:37,059 INFO L280 TraceCheckUtils]: 38: Hoare triple {3969#(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~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {3970#(and (= |main_#t~mem11.offset| main_~null~0.offset) (= |main_#t~mem11.base| main_~null~0.base))} is VALID [2020-07-08 22:24:37,060 INFO L280 TraceCheckUtils]: 39: Hoare triple {3970#(and (= |main_#t~mem11.offset| main_~null~0.offset) (= |main_#t~mem11.base| main_~null~0.base))} assume !(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {3963#false} is VALID [2020-07-08 22:24:37,060 INFO L280 TraceCheckUtils]: 40: Hoare triple {3963#false} havoc #t~mem11.base, #t~mem11.offset; {3963#false} is VALID [2020-07-08 22:24:37,061 INFO L280 TraceCheckUtils]: 41: Hoare triple {3963#false} assume !false; {3963#false} is VALID [2020-07-08 22:24:37,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:37,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [651538245] [2020-07-08 22:24:37,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:37,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:24:37,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708671622] [2020-07-08 22:24:37,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-08 22:24:37,065 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:37,066 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:24:37,114 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:37,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:24:37,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:37,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:24:37,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:24:37,115 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 5 states. [2020-07-08 22:24:38,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:38,088 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2020-07-08 22:24:38,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 22:24:38,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-08 22:24:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:24:38,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-08 22:24:38,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:24:38,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-08 22:24:38,092 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 106 transitions. [2020-07-08 22:24:38,204 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:38,207 INFO L225 Difference]: With dead ends: 110 [2020-07-08 22:24:38,207 INFO L226 Difference]: Without dead ends: 107 [2020-07-08 22:24:38,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 22:24:38,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-08 22:24:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2020-07-08 22:24:38,651 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:38,651 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 104 states. [2020-07-08 22:24:38,651 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 104 states. [2020-07-08 22:24:38,651 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 104 states. [2020-07-08 22:24:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:38,656 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-08 22:24:38,656 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 22:24:38,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:38,657 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:38,657 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 107 states. [2020-07-08 22:24:38,657 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 107 states. [2020-07-08 22:24:38,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:38,661 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-08 22:24:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 22:24:38,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:38,662 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:38,662 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:38,662 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:38,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-08 22:24:38,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-07-08 22:24:38,666 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 42 [2020-07-08 22:24:38,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:38,666 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-07-08 22:24:38,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:24:38,666 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 108 transitions. [2020-07-08 22:24:38,900 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-07-08 22:24:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-08 22:24:38,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:38,902 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:24:38,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 22:24:38,902 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:38,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:38,903 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-07-08 22:24:38,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:38,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838993609] [2020-07-08 22:24:38,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:39,311 INFO L280 TraceCheckUtils]: 0: Hoare triple {4636#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4618#true} is VALID [2020-07-08 22:24:39,311 INFO L280 TraceCheckUtils]: 1: Hoare triple {4618#true} #valid := #valid[0 := 0]; {4618#true} is VALID [2020-07-08 22:24:39,311 INFO L280 TraceCheckUtils]: 2: Hoare triple {4618#true} assume 0 < #StackHeapBarrier; {4618#true} is VALID [2020-07-08 22:24:39,312 INFO L280 TraceCheckUtils]: 3: Hoare triple {4618#true} assume true; {4618#true} is VALID [2020-07-08 22:24:39,312 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4618#true} {4618#true} #260#return; {4618#true} is VALID [2020-07-08 22:24:39,313 INFO L263 TraceCheckUtils]: 0: Hoare triple {4618#true} call ULTIMATE.init(); {4636#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:39,314 INFO L280 TraceCheckUtils]: 1: Hoare triple {4636#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4618#true} is VALID [2020-07-08 22:24:39,314 INFO L280 TraceCheckUtils]: 2: Hoare triple {4618#true} #valid := #valid[0 := 0]; {4618#true} is VALID [2020-07-08 22:24:39,314 INFO L280 TraceCheckUtils]: 3: Hoare triple {4618#true} assume 0 < #StackHeapBarrier; {4618#true} is VALID [2020-07-08 22:24:39,314 INFO L280 TraceCheckUtils]: 4: Hoare triple {4618#true} assume true; {4618#true} is VALID [2020-07-08 22:24:39,314 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4618#true} {4618#true} #260#return; {4618#true} is VALID [2020-07-08 22:24:39,315 INFO L263 TraceCheckUtils]: 6: Hoare triple {4618#true} call #t~ret21 := main(); {4618#true} is VALID [2020-07-08 22:24:39,317 INFO L280 TraceCheckUtils]: 7: Hoare triple {4618#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {4625#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-08 22:24:39,318 INFO L280 TraceCheckUtils]: 8: Hoare triple {4625#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {4626#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:39,318 INFO L280 TraceCheckUtils]: 9: Hoare triple {4626#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {4626#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:39,319 INFO L280 TraceCheckUtils]: 10: Hoare triple {4626#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {4626#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:39,319 INFO L280 TraceCheckUtils]: 11: Hoare triple {4626#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {4626#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:39,321 INFO L280 TraceCheckUtils]: 12: Hoare triple {4626#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {4627#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,322 INFO L280 TraceCheckUtils]: 13: Hoare triple {4627#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,323 INFO L280 TraceCheckUtils]: 14: Hoare triple {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,324 INFO L280 TraceCheckUtils]: 15: Hoare triple {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,325 INFO L280 TraceCheckUtils]: 16: Hoare triple {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,326 INFO L280 TraceCheckUtils]: 17: Hoare triple {4628#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:39,327 INFO L280 TraceCheckUtils]: 18: Hoare triple {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:39,328 INFO L280 TraceCheckUtils]: 19: Hoare triple {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:39,329 INFO L280 TraceCheckUtils]: 20: Hoare triple {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:39,330 INFO L280 TraceCheckUtils]: 21: Hoare triple {4629#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {4630#(and (not (= |main_#t~malloc3.base| main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~null~0.base)))} is VALID [2020-07-08 22:24:39,333 INFO L280 TraceCheckUtils]: 22: Hoare triple {4630#(and (not (= |main_#t~malloc3.base| main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~null~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {4631#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)))} is VALID [2020-07-08 22:24:39,335 INFO L280 TraceCheckUtils]: 23: Hoare triple {4631#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {4632#(and (not (= |main_#t~mem4.base| main_~end~0.base)) (not (= main_~null~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:24:39,339 INFO L280 TraceCheckUtils]: 24: Hoare triple {4632#(and (not (= |main_#t~mem4.base| main_~end~0.base)) (not (= main_~null~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {4633#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:24:39,345 INFO L280 TraceCheckUtils]: 25: Hoare triple {4633#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} havoc #t~mem4.base, #t~mem4.offset; {4633#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:24:39,347 INFO L280 TraceCheckUtils]: 26: Hoare triple {4633#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {4634#(not (= |main_#t~mem5.base| main_~null~0.base))} is VALID [2020-07-08 22:24:39,347 INFO L280 TraceCheckUtils]: 27: Hoare triple {4634#(not (= |main_#t~mem5.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,348 INFO L280 TraceCheckUtils]: 28: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem5.base, #t~mem5.offset; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,348 INFO L280 TraceCheckUtils]: 29: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,349 INFO L280 TraceCheckUtils]: 30: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,350 INFO L280 TraceCheckUtils]: 31: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} assume 0 != #t~nondet6; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,350 INFO L280 TraceCheckUtils]: 32: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} havoc #t~nondet6; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,351 INFO L280 TraceCheckUtils]: 33: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,351 INFO L280 TraceCheckUtils]: 34: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,352 INFO L280 TraceCheckUtils]: 35: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,352 INFO L280 TraceCheckUtils]: 36: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,353 INFO L280 TraceCheckUtils]: 37: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} goto; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,353 INFO L280 TraceCheckUtils]: 38: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,354 INFO L280 TraceCheckUtils]: 39: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,354 INFO L280 TraceCheckUtils]: 40: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,355 INFO L280 TraceCheckUtils]: 41: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} goto; {4635#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:39,355 INFO L280 TraceCheckUtils]: 42: Hoare triple {4635#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {4619#false} is VALID [2020-07-08 22:24:39,356 INFO L280 TraceCheckUtils]: 43: Hoare triple {4619#false} assume !false; {4619#false} is VALID [2020-07-08 22:24:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:39,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838993609] [2020-07-08 22:24:39,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:39,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-08 22:24:39,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946968609] [2020-07-08 22:24:39,362 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-08 22:24:39,363 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:39,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-08 22:24:39,408 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:39,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-08 22:24:39,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:39,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-08 22:24:39,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-08 22:24:39,409 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 14 states. [2020-07-08 22:24:42,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:42,533 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2020-07-08 22:24:42,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-08 22:24:42,533 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-08 22:24:42,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 22:24:42,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-08 22:24:42,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 22:24:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-08 22:24:42,543 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 155 transitions. [2020-07-08 22:24:42,729 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 155 edges. 155 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:42,732 INFO L225 Difference]: With dead ends: 154 [2020-07-08 22:24:42,732 INFO L226 Difference]: Without dead ends: 152 [2020-07-08 22:24:42,733 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-07-08 22:24:42,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-08 22:24:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-07-08 22:24:43,407 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:43,407 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states. Second operand 127 states. [2020-07-08 22:24:43,408 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states. Second operand 127 states. [2020-07-08 22:24:43,408 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 127 states. [2020-07-08 22:24:43,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:43,413 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-08 22:24:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-08 22:24:43,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:43,414 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:43,414 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 152 states. [2020-07-08 22:24:43,414 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 152 states. [2020-07-08 22:24:43,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:43,420 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-08 22:24:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-08 22:24:43,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:43,421 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:43,421 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:43,422 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-08 22:24:43,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2020-07-08 22:24:43,426 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 44 [2020-07-08 22:24:43,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:43,426 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2020-07-08 22:24:43,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-08 22:24:43,426 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 127 states and 132 transitions. [2020-07-08 22:24:43,710 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:43,710 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2020-07-08 22:24:43,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-08 22:24:43,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:43,712 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, 1, 1] [2020-07-08 22:24:43,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 22:24:43,712 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:43,713 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-07-08 22:24:43,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:43,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198341625] [2020-07-08 22:24:43,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:43,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {5536#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5525#true} is VALID [2020-07-08 22:24:43,875 INFO L280 TraceCheckUtils]: 1: Hoare triple {5525#true} #valid := #valid[0 := 0]; {5525#true} is VALID [2020-07-08 22:24:43,875 INFO L280 TraceCheckUtils]: 2: Hoare triple {5525#true} assume 0 < #StackHeapBarrier; {5525#true} is VALID [2020-07-08 22:24:43,875 INFO L280 TraceCheckUtils]: 3: Hoare triple {5525#true} assume true; {5525#true} is VALID [2020-07-08 22:24:43,876 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5525#true} {5525#true} #260#return; {5525#true} is VALID [2020-07-08 22:24:43,876 INFO L263 TraceCheckUtils]: 0: Hoare triple {5525#true} call ULTIMATE.init(); {5536#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:43,877 INFO L280 TraceCheckUtils]: 1: Hoare triple {5536#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5525#true} is VALID [2020-07-08 22:24:43,877 INFO L280 TraceCheckUtils]: 2: Hoare triple {5525#true} #valid := #valid[0 := 0]; {5525#true} is VALID [2020-07-08 22:24:43,877 INFO L280 TraceCheckUtils]: 3: Hoare triple {5525#true} assume 0 < #StackHeapBarrier; {5525#true} is VALID [2020-07-08 22:24:43,877 INFO L280 TraceCheckUtils]: 4: Hoare triple {5525#true} assume true; {5525#true} is VALID [2020-07-08 22:24:43,878 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5525#true} {5525#true} #260#return; {5525#true} is VALID [2020-07-08 22:24:43,878 INFO L263 TraceCheckUtils]: 6: Hoare triple {5525#true} call #t~ret21 := main(); {5525#true} is VALID [2020-07-08 22:24:43,878 INFO L280 TraceCheckUtils]: 7: Hoare triple {5525#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {5525#true} is VALID [2020-07-08 22:24:43,879 INFO L280 TraceCheckUtils]: 8: Hoare triple {5525#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {5525#true} is VALID [2020-07-08 22:24:43,880 INFO L280 TraceCheckUtils]: 9: Hoare triple {5525#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {5525#true} is VALID [2020-07-08 22:24:43,880 INFO L280 TraceCheckUtils]: 10: Hoare triple {5525#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {5525#true} is VALID [2020-07-08 22:24:43,880 INFO L280 TraceCheckUtils]: 11: Hoare triple {5525#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {5525#true} is VALID [2020-07-08 22:24:43,880 INFO L280 TraceCheckUtils]: 12: Hoare triple {5525#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {5525#true} is VALID [2020-07-08 22:24:43,880 INFO L280 TraceCheckUtils]: 13: Hoare triple {5525#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {5525#true} is VALID [2020-07-08 22:24:43,882 INFO L280 TraceCheckUtils]: 14: Hoare triple {5525#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,888 INFO L280 TraceCheckUtils]: 15: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,890 INFO L280 TraceCheckUtils]: 16: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,893 INFO L280 TraceCheckUtils]: 17: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,894 INFO L280 TraceCheckUtils]: 18: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,895 INFO L280 TraceCheckUtils]: 19: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} assume !(0 != #t~nondet2); {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,895 INFO L280 TraceCheckUtils]: 20: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} havoc #t~nondet2; {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,896 INFO L280 TraceCheckUtils]: 21: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} is VALID [2020-07-08 22:24:43,897 INFO L280 TraceCheckUtils]: 22: Hoare triple {5532#(and (= main_~null~0.base (select (store (select |#memory_$Pointer$.base| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.base) main_~list~0.offset)) (= (select (store (select |#memory_$Pointer$.offset| main_~list~0.base) (+ main_~list~0.offset 4) main_~null~0.offset) main_~list~0.offset) main_~null~0.offset))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {5533#(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 [2020-07-08 22:24:43,898 INFO L280 TraceCheckUtils]: 23: Hoare triple {5533#(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); {5533#(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 [2020-07-08 22:24:43,899 INFO L280 TraceCheckUtils]: 24: Hoare triple {5533#(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; {5533#(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 [2020-07-08 22:24:43,899 INFO L280 TraceCheckUtils]: 25: Hoare triple {5533#(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 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {5533#(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 [2020-07-08 22:24:43,900 INFO L280 TraceCheckUtils]: 26: Hoare triple {5533#(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~mem12); {5533#(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 [2020-07-08 22:24:43,901 INFO L280 TraceCheckUtils]: 27: Hoare triple {5533#(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; {5533#(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 [2020-07-08 22:24:43,902 INFO L280 TraceCheckUtils]: 28: Hoare triple {5533#(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; {5533#(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 [2020-07-08 22:24:43,902 INFO L280 TraceCheckUtils]: 29: Hoare triple {5533#(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); {5533#(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 [2020-07-08 22:24:43,903 INFO L280 TraceCheckUtils]: 30: Hoare triple {5533#(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~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {5533#(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 [2020-07-08 22:24:43,904 INFO L280 TraceCheckUtils]: 31: Hoare triple {5533#(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~mem13); {5533#(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 [2020-07-08 22:24:43,905 INFO L280 TraceCheckUtils]: 32: Hoare triple {5533#(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~mem13; {5533#(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 [2020-07-08 22:24:43,906 INFO L280 TraceCheckUtils]: 33: Hoare triple {5533#(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~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1034-4 {5534#(and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base))} is VALID [2020-07-08 22:24:43,906 INFO L280 TraceCheckUtils]: 34: Hoare triple {5534#(and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem16.base, #t~mem16.offset; {5535#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:43,907 INFO L280 TraceCheckUtils]: 35: Hoare triple {5535#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} havoc #t~mem16.base, #t~mem16.offset; {5535#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:43,908 INFO L280 TraceCheckUtils]: 36: Hoare triple {5535#(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); {5526#false} is VALID [2020-07-08 22:24:43,909 INFO L280 TraceCheckUtils]: 37: Hoare triple {5526#false} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {5526#false} is VALID [2020-07-08 22:24:43,909 INFO L280 TraceCheckUtils]: 38: Hoare triple {5526#false} assume ~unnamed1~0~RED == #t~mem13; {5526#false} is VALID [2020-07-08 22:24:43,909 INFO L280 TraceCheckUtils]: 39: Hoare triple {5526#false} havoc #t~mem13; {5526#false} is VALID [2020-07-08 22:24:43,909 INFO L280 TraceCheckUtils]: 40: Hoare triple {5526#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {5526#false} is VALID [2020-07-08 22:24:43,910 INFO L280 TraceCheckUtils]: 41: Hoare triple {5526#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {5526#false} is VALID [2020-07-08 22:24:43,910 INFO L280 TraceCheckUtils]: 42: Hoare triple {5526#false} havoc #t~mem14.base, #t~mem14.offset; {5526#false} is VALID [2020-07-08 22:24:43,910 INFO L280 TraceCheckUtils]: 43: Hoare triple {5526#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {5526#false} is VALID [2020-07-08 22:24:43,910 INFO L280 TraceCheckUtils]: 44: Hoare triple {5526#false} assume !false; {5526#false} is VALID [2020-07-08 22:24:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:43,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198341625] [2020-07-08 22:24:43,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:24:43,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-08 22:24:43,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605762423] [2020-07-08 22:24:43,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-08 22:24:43,919 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:43,919 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 22:24:43,963 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:43,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 22:24:43,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:43,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 22:24:43,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:24:43,964 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 7 states. [2020-07-08 22:24:45,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:45,622 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2020-07-08 22:24:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 22:24:45,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-08 22:24:45,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:45,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:24:45,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-08 22:24:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:24:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-08 22:24:45,630 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 141 transitions. [2020-07-08 22:24:45,776 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:45,779 INFO L225 Difference]: With dead ends: 159 [2020-07-08 22:24:45,779 INFO L226 Difference]: Without dead ends: 120 [2020-07-08 22:24:45,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-08 22:24:45,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-08 22:24:46,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-08 22:24:46,443 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:46,443 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 120 states. [2020-07-08 22:24:46,444 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-08 22:24:46,444 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-08 22:24:46,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:46,448 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-08 22:24:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 22:24:46,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:46,449 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:46,449 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-08 22:24:46,449 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-08 22:24:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:46,453 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-08 22:24:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 22:24:46,453 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:46,454 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:46,454 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:46,454 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-08 22:24:46,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2020-07-08 22:24:46,457 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 45 [2020-07-08 22:24:46,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:46,458 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2020-07-08 22:24:46,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 22:24:46,458 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 120 states and 124 transitions. [2020-07-08 22:24:46,740 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 22:24:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-08 22:24:46,741 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:46,741 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:24:46,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 22:24:46,742 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:46,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-07-08 22:24:46,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:46,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1217393657] [2020-07-08 22:24:46,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:47,212 INFO L280 TraceCheckUtils]: 0: Hoare triple {6370#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6347#true} is VALID [2020-07-08 22:24:47,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {6347#true} #valid := #valid[0 := 0]; {6347#true} is VALID [2020-07-08 22:24:47,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {6347#true} assume 0 < #StackHeapBarrier; {6347#true} is VALID [2020-07-08 22:24:47,214 INFO L280 TraceCheckUtils]: 3: Hoare triple {6347#true} assume true; {6347#true} is VALID [2020-07-08 22:24:47,214 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6347#true} {6347#true} #260#return; {6347#true} is VALID [2020-07-08 22:24:47,215 INFO L263 TraceCheckUtils]: 0: Hoare triple {6347#true} call ULTIMATE.init(); {6370#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:47,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {6370#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6347#true} is VALID [2020-07-08 22:24:47,216 INFO L280 TraceCheckUtils]: 2: Hoare triple {6347#true} #valid := #valid[0 := 0]; {6347#true} is VALID [2020-07-08 22:24:47,216 INFO L280 TraceCheckUtils]: 3: Hoare triple {6347#true} assume 0 < #StackHeapBarrier; {6347#true} is VALID [2020-07-08 22:24:47,216 INFO L280 TraceCheckUtils]: 4: Hoare triple {6347#true} assume true; {6347#true} is VALID [2020-07-08 22:24:47,216 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6347#true} {6347#true} #260#return; {6347#true} is VALID [2020-07-08 22:24:47,217 INFO L263 TraceCheckUtils]: 6: Hoare triple {6347#true} call #t~ret21 := main(); {6347#true} is VALID [2020-07-08 22:24:47,219 INFO L280 TraceCheckUtils]: 7: Hoare triple {6347#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {6354#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-08 22:24:47,220 INFO L280 TraceCheckUtils]: 8: Hoare triple {6354#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {6355#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:47,221 INFO L280 TraceCheckUtils]: 9: Hoare triple {6355#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {6355#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:47,221 INFO L280 TraceCheckUtils]: 10: Hoare triple {6355#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {6355#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:47,222 INFO L280 TraceCheckUtils]: 11: Hoare triple {6355#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {6355#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:24:47,223 INFO L280 TraceCheckUtils]: 12: Hoare triple {6355#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {6356#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,224 INFO L280 TraceCheckUtils]: 13: Hoare triple {6356#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,225 INFO L280 TraceCheckUtils]: 14: Hoare triple {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,226 INFO L280 TraceCheckUtils]: 15: Hoare triple {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,227 INFO L280 TraceCheckUtils]: 16: Hoare triple {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,228 INFO L280 TraceCheckUtils]: 17: Hoare triple {6357#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,229 INFO L280 TraceCheckUtils]: 18: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,229 INFO L280 TraceCheckUtils]: 19: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,230 INFO L280 TraceCheckUtils]: 20: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,231 INFO L280 TraceCheckUtils]: 21: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {6359#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-08 22:24:47,232 INFO L280 TraceCheckUtils]: 22: Hoare triple {6359#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {6360#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:24:47,234 INFO L280 TraceCheckUtils]: 23: Hoare triple {6360#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= 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: L1003-2 {6361#(and (not (= |main_#t~mem4.base| main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:24:47,235 INFO L280 TraceCheckUtils]: 24: Hoare triple {6361#(and (not (= |main_#t~mem4.base| main_~end~0.base)) (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {6362#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:24:47,236 INFO L280 TraceCheckUtils]: 25: Hoare triple {6362#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} havoc #t~mem4.base, #t~mem4.offset; {6362#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:24:47,237 INFO L280 TraceCheckUtils]: 26: Hoare triple {6362#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {6363#(and (= 1 (select |#valid| main_~null~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1))} is VALID [2020-07-08 22:24:47,238 INFO L280 TraceCheckUtils]: 27: Hoare triple {6363#(and (= 1 (select |#valid| main_~null~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,238 INFO L280 TraceCheckUtils]: 28: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem5.base, #t~mem5.offset; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,239 INFO L280 TraceCheckUtils]: 29: Hoare triple {6358#(and (= 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: L1006 {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,240 INFO L280 TraceCheckUtils]: 30: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,241 INFO L280 TraceCheckUtils]: 31: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !(0 != #t~nondet6); {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,241 INFO L280 TraceCheckUtils]: 32: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet6; {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,242 INFO L280 TraceCheckUtils]: 33: Hoare triple {6358#(and (= 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, 8 + ~end~0.offset, 4); srcloc: L1014 {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,244 INFO L280 TraceCheckUtils]: 34: Hoare triple {6358#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc7.base, #t~malloc7.offset := #Ultimate.allocOnHeap(12); srcloc: L1014-1 {6364#(and (not (= |main_#t~malloc7.base| main_~null~0.base)) (not (= |main_#t~malloc7.base| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,245 INFO L280 TraceCheckUtils]: 35: Hoare triple {6364#(and (not (= |main_#t~malloc7.base| main_~null~0.base)) (not (= |main_#t~malloc7.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc7.base, #t~malloc7.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1015 {6365#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)))} is VALID [2020-07-08 22:24:47,255 INFO L280 TraceCheckUtils]: 36: Hoare triple {6365#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)))} SUMMARY for call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1015-1 {6366#(and (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset) main_~null~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} is VALID [2020-07-08 22:24:47,257 INFO L280 TraceCheckUtils]: 37: Hoare triple {6366#(and (not (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset) main_~null~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem8.base, 4 + #t~mem8.offset, 4); srcloc: L1016 {6367#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:24:47,257 INFO L280 TraceCheckUtils]: 38: Hoare triple {6367#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} havoc #t~mem8.base, #t~mem8.offset; {6367#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:24:47,258 INFO L280 TraceCheckUtils]: 39: Hoare triple {6367#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1017 {6368#(not (= |main_#t~mem9.base| main_~null~0.base))} is VALID [2020-07-08 22:24:47,259 INFO L280 TraceCheckUtils]: 40: Hoare triple {6368#(not (= |main_#t~mem9.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem9.base, #t~mem9.offset; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,260 INFO L280 TraceCheckUtils]: 41: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem9.base, #t~mem9.offset; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,260 INFO L280 TraceCheckUtils]: 42: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1018 {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,261 INFO L280 TraceCheckUtils]: 43: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1018-1 {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,261 INFO L280 TraceCheckUtils]: 44: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,262 INFO L280 TraceCheckUtils]: 45: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,263 INFO L280 TraceCheckUtils]: 46: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,263 INFO L280 TraceCheckUtils]: 47: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} goto; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,264 INFO L280 TraceCheckUtils]: 48: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,264 INFO L280 TraceCheckUtils]: 49: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,265 INFO L280 TraceCheckUtils]: 50: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,266 INFO L280 TraceCheckUtils]: 51: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} goto; {6369#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:24:47,266 INFO L280 TraceCheckUtils]: 52: Hoare triple {6369#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {6348#false} is VALID [2020-07-08 22:24:47,266 INFO L280 TraceCheckUtils]: 53: Hoare triple {6348#false} assume !false; {6348#false} is VALID [2020-07-08 22:24:47,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:47,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1217393657] [2020-07-08 22:24:47,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:24:47,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-08 22:24:47,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434593772] [2020-07-08 22:24:47,283 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-08 22:24:47,283 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:47,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-08 22:24:47,356 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:47,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-08 22:24:47,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:47,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-08 22:24:47,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-07-08 22:24:47,358 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand 19 states. [2020-07-08 22:24:52,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:52,685 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2020-07-08 22:24:52,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-08 22:24:52,685 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-08 22:24:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:24:52,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 22:24:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-08 22:24:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 22:24:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-08 22:24:52,692 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 174 transitions. [2020-07-08 22:24:52,974 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:52,978 INFO L225 Difference]: With dead ends: 187 [2020-07-08 22:24:52,978 INFO L226 Difference]: Without dead ends: 185 [2020-07-08 22:24:52,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2020-07-08 22:24:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-08 22:24:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 167. [2020-07-08 22:24:53,996 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:24:53,997 INFO L82 GeneralOperation]: Start isEquivalent. First operand 185 states. Second operand 167 states. [2020-07-08 22:24:53,997 INFO L74 IsIncluded]: Start isIncluded. First operand 185 states. Second operand 167 states. [2020-07-08 22:24:53,997 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 167 states. [2020-07-08 22:24:54,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:54,004 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-08 22:24:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-08 22:24:54,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:54,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:54,005 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 185 states. [2020-07-08 22:24:54,005 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 185 states. [2020-07-08 22:24:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:24:54,010 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-08 22:24:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-08 22:24:54,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:24:54,010 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:24:54,011 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:24:54,011 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:24:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-08 22:24:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-07-08 22:24:54,015 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 54 [2020-07-08 22:24:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:24:54,015 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-07-08 22:24:54,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-08 22:24:54,015 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 167 states and 174 transitions. [2020-07-08 22:24:54,411 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:54,412 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-07-08 22:24:54,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-08 22:24:54,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:24:54,413 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:24:54,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 22:24:54,413 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:24:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:24:54,414 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-07-08 22:24:54,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:24:54,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1346314498] [2020-07-08 22:24:54,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:24:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:24:55,448 INFO L280 TraceCheckUtils]: 0: Hoare triple {7512#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7489#true} is VALID [2020-07-08 22:24:55,448 INFO L280 TraceCheckUtils]: 1: Hoare triple {7489#true} #valid := #valid[0 := 0]; {7489#true} is VALID [2020-07-08 22:24:55,451 INFO L280 TraceCheckUtils]: 2: Hoare triple {7489#true} assume 0 < #StackHeapBarrier; {7489#true} is VALID [2020-07-08 22:24:55,452 INFO L280 TraceCheckUtils]: 3: Hoare triple {7489#true} assume true; {7489#true} is VALID [2020-07-08 22:24:55,452 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7489#true} {7489#true} #260#return; {7489#true} is VALID [2020-07-08 22:24:55,459 INFO L263 TraceCheckUtils]: 0: Hoare triple {7489#true} call ULTIMATE.init(); {7512#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:24:55,459 INFO L280 TraceCheckUtils]: 1: Hoare triple {7512#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7489#true} is VALID [2020-07-08 22:24:55,460 INFO L280 TraceCheckUtils]: 2: Hoare triple {7489#true} #valid := #valid[0 := 0]; {7489#true} is VALID [2020-07-08 22:24:55,460 INFO L280 TraceCheckUtils]: 3: Hoare triple {7489#true} assume 0 < #StackHeapBarrier; {7489#true} is VALID [2020-07-08 22:24:55,460 INFO L280 TraceCheckUtils]: 4: Hoare triple {7489#true} assume true; {7489#true} is VALID [2020-07-08 22:24:55,460 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7489#true} {7489#true} #260#return; {7489#true} is VALID [2020-07-08 22:24:55,460 INFO L263 TraceCheckUtils]: 6: Hoare triple {7489#true} call #t~ret21 := main(); {7489#true} is VALID [2020-07-08 22:24:55,461 INFO L280 TraceCheckUtils]: 7: Hoare triple {7489#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {7496#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:24:55,462 INFO L280 TraceCheckUtils]: 8: Hoare triple {7496#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {7497#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:55,462 INFO L280 TraceCheckUtils]: 9: Hoare triple {7497#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {7497#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:55,463 INFO L280 TraceCheckUtils]: 10: Hoare triple {7497#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {7497#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:55,463 INFO L280 TraceCheckUtils]: 11: Hoare triple {7497#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {7497#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:24:55,465 INFO L280 TraceCheckUtils]: 12: Hoare triple {7497#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {7498#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-08 22:24:55,465 INFO L280 TraceCheckUtils]: 13: Hoare triple {7498#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,466 INFO L280 TraceCheckUtils]: 14: Hoare triple {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~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: L993 {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,467 INFO L280 TraceCheckUtils]: 15: Hoare triple {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,469 INFO L280 TraceCheckUtils]: 16: Hoare triple {7499#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {7500#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,470 INFO L280 TraceCheckUtils]: 17: Hoare triple {7500#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:55,471 INFO L280 TraceCheckUtils]: 18: Hoare triple {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:55,472 INFO L280 TraceCheckUtils]: 19: Hoare triple {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:55,473 INFO L280 TraceCheckUtils]: 20: Hoare triple {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:24:55,474 INFO L280 TraceCheckUtils]: 21: Hoare triple {7501#(and (= 0 main_~null~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {7502#(and (= 0 main_~null~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} is VALID [2020-07-08 22:24:55,475 INFO L280 TraceCheckUtils]: 22: Hoare triple {7502#(and (= 0 main_~null~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} is VALID [2020-07-08 22:24:55,476 INFO L280 TraceCheckUtils]: 23: Hoare triple {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {7504#(and (= 0 main_~null~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} is VALID [2020-07-08 22:24:55,478 INFO L280 TraceCheckUtils]: 24: Hoare triple {7504#(and (= 0 main_~null~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} is VALID [2020-07-08 22:24:55,479 INFO L280 TraceCheckUtils]: 25: Hoare triple {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} havoc #t~mem4.base, #t~mem4.offset; {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} is VALID [2020-07-08 22:24:55,480 INFO L280 TraceCheckUtils]: 26: Hoare triple {7503#(and (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (= main_~list~0.offset main_~null~0.offset) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {7505#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,481 INFO L280 TraceCheckUtils]: 27: Hoare triple {7505#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {7506#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,482 INFO L280 TraceCheckUtils]: 28: Hoare triple {7506#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem5.base, #t~mem5.offset; {7506#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,483 INFO L280 TraceCheckUtils]: 29: Hoare triple {7506#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,484 INFO L280 TraceCheckUtils]: 30: Hoare triple {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,485 INFO L280 TraceCheckUtils]: 31: Hoare triple {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} assume 0 != #t~nondet6; {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,486 INFO L280 TraceCheckUtils]: 32: Hoare triple {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} havoc #t~nondet6; {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} is VALID [2020-07-08 22:24:55,487 INFO L280 TraceCheckUtils]: 33: Hoare triple {7507#(and (= 0 main_~null~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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))) (= main_~list~0.offset main_~null~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,488 INFO L280 TraceCheckUtils]: 34: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,489 INFO L280 TraceCheckUtils]: 35: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~unnamed1~0~BLACK == #t~mem10); {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,489 INFO L280 TraceCheckUtils]: 36: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem10; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,490 INFO L280 TraceCheckUtils]: 37: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,491 INFO L280 TraceCheckUtils]: 38: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,492 INFO L280 TraceCheckUtils]: 39: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,492 INFO L280 TraceCheckUtils]: 40: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem11.base, #t~mem11.offset; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,493 INFO L280 TraceCheckUtils]: 41: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,494 INFO L280 TraceCheckUtils]: 42: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,495 INFO L280 TraceCheckUtils]: 43: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,495 INFO L280 TraceCheckUtils]: 44: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,496 INFO L280 TraceCheckUtils]: 45: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet2); {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,497 INFO L280 TraceCheckUtils]: 46: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,498 INFO L280 TraceCheckUtils]: 47: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:24:55,498 INFO L280 TraceCheckUtils]: 48: Hoare triple {7508#(and (= 0 main_~null~0.offset) (= main_~list~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7509#(and (= 0 main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:24:55,499 INFO L280 TraceCheckUtils]: 49: Hoare triple {7509#(and (= 0 main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {7510#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:55,499 INFO L280 TraceCheckUtils]: 50: Hoare triple {7510#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {7510#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:24:55,500 INFO L280 TraceCheckUtils]: 51: Hoare triple {7510#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {7511#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-08 22:24:55,501 INFO L280 TraceCheckUtils]: 52: Hoare triple {7511#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {7490#false} is VALID [2020-07-08 22:24:55,501 INFO L280 TraceCheckUtils]: 53: Hoare triple {7490#false} havoc #t~mem12; {7490#false} is VALID [2020-07-08 22:24:55,501 INFO L280 TraceCheckUtils]: 54: Hoare triple {7490#false} assume !false; {7490#false} is VALID [2020-07-08 22:24:55,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:24:55,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1346314498] [2020-07-08 22:24:55,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:24:55,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-07-08 22:24:55,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85531658] [2020-07-08 22:24:55,516 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-07-08 22:24:55,516 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:24:55,516 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-08 22:24:55,580 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:24:55,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-08 22:24:55,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:24:55,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-08 22:24:55,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-07-08 22:24:55,582 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 19 states. [2020-07-08 22:25:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:00,573 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2020-07-08 22:25:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 22:25:00,573 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-07-08 22:25:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 22:25:00,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 183 transitions. [2020-07-08 22:25:00,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 22:25:00,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 183 transitions. [2020-07-08 22:25:00,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 183 transitions. [2020-07-08 22:25:00,872 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 183 edges. 183 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:00,878 INFO L225 Difference]: With dead ends: 224 [2020-07-08 22:25:00,879 INFO L226 Difference]: Without dead ends: 221 [2020-07-08 22:25:00,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=311, Invalid=879, Unknown=0, NotChecked=0, Total=1190 [2020-07-08 22:25:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-08 22:25:01,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 177. [2020-07-08 22:25:01,998 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:01,998 INFO L82 GeneralOperation]: Start isEquivalent. First operand 221 states. Second operand 177 states. [2020-07-08 22:25:01,998 INFO L74 IsIncluded]: Start isIncluded. First operand 221 states. Second operand 177 states. [2020-07-08 22:25:01,999 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 177 states. [2020-07-08 22:25:02,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:02,005 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-08 22:25:02,005 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-08 22:25:02,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:02,006 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:02,006 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 221 states. [2020-07-08 22:25:02,006 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 221 states. [2020-07-08 22:25:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:02,012 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-08 22:25:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-08 22:25:02,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:02,013 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:02,013 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:02,013 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-08 22:25:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 185 transitions. [2020-07-08 22:25:02,017 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 185 transitions. Word has length 55 [2020-07-08 22:25:02,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:02,017 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 185 transitions. [2020-07-08 22:25:02,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-08 22:25:02,018 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 177 states and 185 transitions. [2020-07-08 22:25:02,485 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 185 transitions. [2020-07-08 22:25:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-08 22:25:02,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:02,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:25:02,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 22:25:02,487 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:02,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:02,487 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-07-08 22:25:02,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:02,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254999352] [2020-07-08 22:25:02,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:04,118 INFO L280 TraceCheckUtils]: 0: Hoare triple {8820#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8791#true} is VALID [2020-07-08 22:25:04,118 INFO L280 TraceCheckUtils]: 1: Hoare triple {8791#true} #valid := #valid[0 := 0]; {8791#true} is VALID [2020-07-08 22:25:04,118 INFO L280 TraceCheckUtils]: 2: Hoare triple {8791#true} assume 0 < #StackHeapBarrier; {8791#true} is VALID [2020-07-08 22:25:04,119 INFO L280 TraceCheckUtils]: 3: Hoare triple {8791#true} assume true; {8791#true} is VALID [2020-07-08 22:25:04,119 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8791#true} {8791#true} #260#return; {8791#true} is VALID [2020-07-08 22:25:04,120 INFO L263 TraceCheckUtils]: 0: Hoare triple {8791#true} call ULTIMATE.init(); {8820#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:04,120 INFO L280 TraceCheckUtils]: 1: Hoare triple {8820#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8791#true} is VALID [2020-07-08 22:25:04,120 INFO L280 TraceCheckUtils]: 2: Hoare triple {8791#true} #valid := #valid[0 := 0]; {8791#true} is VALID [2020-07-08 22:25:04,120 INFO L280 TraceCheckUtils]: 3: Hoare triple {8791#true} assume 0 < #StackHeapBarrier; {8791#true} is VALID [2020-07-08 22:25:04,120 INFO L280 TraceCheckUtils]: 4: Hoare triple {8791#true} assume true; {8791#true} is VALID [2020-07-08 22:25:04,120 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8791#true} {8791#true} #260#return; {8791#true} is VALID [2020-07-08 22:25:04,121 INFO L263 TraceCheckUtils]: 6: Hoare triple {8791#true} call #t~ret21 := main(); {8791#true} is VALID [2020-07-08 22:25:04,122 INFO L280 TraceCheckUtils]: 7: Hoare triple {8791#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {8798#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:25:04,123 INFO L280 TraceCheckUtils]: 8: Hoare triple {8798#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {8799#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:04,123 INFO L280 TraceCheckUtils]: 9: Hoare triple {8799#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {8799#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:04,124 INFO L280 TraceCheckUtils]: 10: Hoare triple {8799#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {8799#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:04,125 INFO L280 TraceCheckUtils]: 11: Hoare triple {8799#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {8799#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:04,125 INFO L280 TraceCheckUtils]: 12: Hoare triple {8799#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {8800#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|) (= |main_#t~malloc1.offset| main_~null~0.offset))} is VALID [2020-07-08 22:25:04,126 INFO L280 TraceCheckUtils]: 13: Hoare triple {8800#(and (= 1 (select |#valid| |main_#t~malloc1.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; {8801#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:04,127 INFO L280 TraceCheckUtils]: 14: Hoare triple {8801#(and (= 0 main_~null~0.offset) (= 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: L993 {8801#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:04,127 INFO L280 TraceCheckUtils]: 15: Hoare triple {8801#(and (= 0 main_~null~0.offset) (= 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, 4 + ~list~0.offset, 4); srcloc: L993-1 {8801#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:04,128 INFO L280 TraceCheckUtils]: 16: Hoare triple {8801#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {8802#(and (= 0 main_~null~0.offset) (= 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 8))))} is VALID [2020-07-08 22:25:04,129 INFO L280 TraceCheckUtils]: 17: Hoare triple {8802#(and (= 0 main_~null~0.offset) (= 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 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,130 INFO L280 TraceCheckUtils]: 18: Hoare triple {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,131 INFO L280 TraceCheckUtils]: 19: Hoare triple {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,132 INFO L280 TraceCheckUtils]: 20: Hoare triple {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,133 INFO L280 TraceCheckUtils]: 21: Hoare triple {8803#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {8804#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 0 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,135 INFO L280 TraceCheckUtils]: 22: Hoare triple {8804#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 0 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,136 INFO L280 TraceCheckUtils]: 23: Hoare triple {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {8806#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,138 INFO L280 TraceCheckUtils]: 24: Hoare triple {8806#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,139 INFO L280 TraceCheckUtils]: 25: Hoare triple {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem4.base, #t~mem4.offset; {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,140 INFO L280 TraceCheckUtils]: 26: Hoare triple {8805#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {8807#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,141 INFO L280 TraceCheckUtils]: 27: Hoare triple {8807#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,142 INFO L280 TraceCheckUtils]: 28: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem5.base, #t~mem5.offset; {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,143 INFO L280 TraceCheckUtils]: 29: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 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: L1006 {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,144 INFO L280 TraceCheckUtils]: 30: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,145 INFO L280 TraceCheckUtils]: 31: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !(0 != #t~nondet6); {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,146 INFO L280 TraceCheckUtils]: 32: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet6; {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,147 INFO L280 TraceCheckUtils]: 33: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~int(~unnamed1~0~RED, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1014 {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,148 INFO L280 TraceCheckUtils]: 34: Hoare triple {8808#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc7.base, #t~malloc7.offset := #Ultimate.allocOnHeap(12); srcloc: L1014-1 {8809#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (not (= |main_#t~malloc7.base| main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= |main_#t~malloc7.base| main_~list~0.base)))} is VALID [2020-07-08 22:25:04,150 INFO L280 TraceCheckUtils]: 35: Hoare triple {8809#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (not (= |main_#t~malloc7.base| main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= |main_#t~malloc7.base| main_~list~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc7.base, #t~malloc7.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1015 {8810#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:04,152 INFO L280 TraceCheckUtils]: 36: Hoare triple {8810#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem8.base, #t~mem8.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1015-1 {8811#(and (not (= main_~list~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= |main_#t~mem8.base| main_~list~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} is VALID [2020-07-08 22:25:04,153 INFO L280 TraceCheckUtils]: 37: Hoare triple {8811#(and (not (= main_~list~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= |main_#t~mem8.base| main_~list~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem8.base, 4 + #t~mem8.offset, 4); srcloc: L1016 {8812#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:04,154 INFO L280 TraceCheckUtils]: 38: Hoare triple {8812#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} havoc #t~mem8.base, #t~mem8.offset; {8812#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:04,154 INFO L280 TraceCheckUtils]: 39: Hoare triple {8812#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1017 {8813#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem9.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,155 INFO L280 TraceCheckUtils]: 40: Hoare triple {8813#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem9.base| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem9.base, #t~mem9.offset; {8814#(and (= 0 main_~null~0.offset) (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 8))))} is VALID [2020-07-08 22:25:04,155 INFO L280 TraceCheckUtils]: 41: Hoare triple {8814#(and (= 0 main_~null~0.offset) (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 8))))} havoc #t~mem9.base, #t~mem9.offset; {8814#(and (= 0 main_~null~0.offset) (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 8))))} is VALID [2020-07-08 22:25:04,157 INFO L280 TraceCheckUtils]: 42: Hoare triple {8814#(and (= 0 main_~null~0.offset) (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 8))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1018 {8815#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,158 INFO L280 TraceCheckUtils]: 43: Hoare triple {8815#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1018-1 {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,158 INFO L280 TraceCheckUtils]: 44: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,159 INFO L280 TraceCheckUtils]: 45: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~unnamed1~0~BLACK == #t~mem10); {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,159 INFO L280 TraceCheckUtils]: 46: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem10; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,160 INFO L280 TraceCheckUtils]: 47: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,160 INFO L280 TraceCheckUtils]: 48: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,161 INFO L280 TraceCheckUtils]: 49: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,161 INFO L280 TraceCheckUtils]: 50: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem11.base, #t~mem11.offset; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,162 INFO L280 TraceCheckUtils]: 51: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,169 INFO L280 TraceCheckUtils]: 52: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,169 INFO L280 TraceCheckUtils]: 53: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,170 INFO L280 TraceCheckUtils]: 54: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,171 INFO L280 TraceCheckUtils]: 55: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet2); {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,171 INFO L280 TraceCheckUtils]: 56: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,172 INFO L280 TraceCheckUtils]: 57: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:04,173 INFO L280 TraceCheckUtils]: 58: Hoare triple {8816#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8817#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:04,173 INFO L280 TraceCheckUtils]: 59: Hoare triple {8817#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {8818#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:25:04,173 INFO L280 TraceCheckUtils]: 60: Hoare triple {8818#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {8818#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:25:04,174 INFO L280 TraceCheckUtils]: 61: Hoare triple {8818#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {8819#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-08 22:25:04,176 INFO L280 TraceCheckUtils]: 62: Hoare triple {8819#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {8792#false} is VALID [2020-07-08 22:25:04,176 INFO L280 TraceCheckUtils]: 63: Hoare triple {8792#false} havoc #t~mem12; {8792#false} is VALID [2020-07-08 22:25:04,177 INFO L280 TraceCheckUtils]: 64: Hoare triple {8792#false} assume !false; {8792#false} is VALID [2020-07-08 22:25:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:25:04,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254999352] [2020-07-08 22:25:04,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:04,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-07-08 22:25:04,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922601929] [2020-07-08 22:25:04,200 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 65 [2020-07-08 22:25:04,200 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:04,200 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2020-07-08 22:25:04,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:04,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-08 22:25:04,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:04,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-08 22:25:04,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-07-08 22:25:04,298 INFO L87 Difference]: Start difference. First operand 177 states and 185 transitions. Second operand 25 states. [2020-07-08 22:25:11,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:11,627 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-07-08 22:25:11,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-08 22:25:11,627 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 65 [2020-07-08 22:25:11,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:11,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 209 transitions. [2020-07-08 22:25:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 209 transitions. [2020-07-08 22:25:11,632 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 209 transitions. [2020-07-08 22:25:11,981 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:11,986 INFO L225 Difference]: With dead ends: 254 [2020-07-08 22:25:11,986 INFO L226 Difference]: Without dead ends: 251 [2020-07-08 22:25:11,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=531, Invalid=1821, Unknown=0, NotChecked=0, Total=2352 [2020-07-08 22:25:11,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-07-08 22:25:13,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 201. [2020-07-08 22:25:13,449 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:13,450 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states. Second operand 201 states. [2020-07-08 22:25:13,450 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand 201 states. [2020-07-08 22:25:13,450 INFO L87 Difference]: Start difference. First operand 251 states. Second operand 201 states. [2020-07-08 22:25:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:13,456 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-08 22:25:13,456 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-08 22:25:13,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:13,457 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:13,457 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 251 states. [2020-07-08 22:25:13,457 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 251 states. [2020-07-08 22:25:13,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:13,464 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-08 22:25:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-08 22:25:13,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:13,465 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:13,465 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:13,465 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-08 22:25:13,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 210 transitions. [2020-07-08 22:25:13,470 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 210 transitions. Word has length 65 [2020-07-08 22:25:13,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:13,471 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 210 transitions. [2020-07-08 22:25:13,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-08 22:25:13,471 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 210 transitions. [2020-07-08 22:25:14,051 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 210 transitions. [2020-07-08 22:25:14,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 22:25:14,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:14,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-08 22:25:14,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 22:25:14,053 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:14,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:14,053 INFO L82 PathProgramCache]: Analyzing trace with hash -736103817, now seen corresponding path program 1 times [2020-07-08 22:25:14,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:14,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361036679] [2020-07-08 22:25:14,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:14,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:14,310 INFO L280 TraceCheckUtils]: 0: Hoare triple {10297#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10283#true} is VALID [2020-07-08 22:25:14,311 INFO L280 TraceCheckUtils]: 1: Hoare triple {10283#true} #valid := #valid[0 := 0]; {10283#true} is VALID [2020-07-08 22:25:14,311 INFO L280 TraceCheckUtils]: 2: Hoare triple {10283#true} assume 0 < #StackHeapBarrier; {10283#true} is VALID [2020-07-08 22:25:14,311 INFO L280 TraceCheckUtils]: 3: Hoare triple {10283#true} assume true; {10283#true} is VALID [2020-07-08 22:25:14,311 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {10283#true} {10283#true} #260#return; {10283#true} is VALID [2020-07-08 22:25:14,313 INFO L263 TraceCheckUtils]: 0: Hoare triple {10283#true} call ULTIMATE.init(); {10297#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:14,313 INFO L280 TraceCheckUtils]: 1: Hoare triple {10297#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10283#true} is VALID [2020-07-08 22:25:14,313 INFO L280 TraceCheckUtils]: 2: Hoare triple {10283#true} #valid := #valid[0 := 0]; {10283#true} is VALID [2020-07-08 22:25:14,313 INFO L280 TraceCheckUtils]: 3: Hoare triple {10283#true} assume 0 < #StackHeapBarrier; {10283#true} is VALID [2020-07-08 22:25:14,314 INFO L280 TraceCheckUtils]: 4: Hoare triple {10283#true} assume true; {10283#true} is VALID [2020-07-08 22:25:14,314 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {10283#true} {10283#true} #260#return; {10283#true} is VALID [2020-07-08 22:25:14,314 INFO L263 TraceCheckUtils]: 6: Hoare triple {10283#true} call #t~ret21 := main(); {10283#true} is VALID [2020-07-08 22:25:14,315 INFO L280 TraceCheckUtils]: 7: Hoare triple {10283#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {10290#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-08 22:25:14,316 INFO L280 TraceCheckUtils]: 8: Hoare triple {10290#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,316 INFO L280 TraceCheckUtils]: 9: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,317 INFO L280 TraceCheckUtils]: 10: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,317 INFO L280 TraceCheckUtils]: 11: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,318 INFO L280 TraceCheckUtils]: 12: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,319 INFO L280 TraceCheckUtils]: 13: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,319 INFO L280 TraceCheckUtils]: 14: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,320 INFO L280 TraceCheckUtils]: 15: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,320 INFO L280 TraceCheckUtils]: 16: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,321 INFO L280 TraceCheckUtils]: 17: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,321 INFO L280 TraceCheckUtils]: 18: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,322 INFO L280 TraceCheckUtils]: 19: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume !!(0 != #t~nondet2); {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,322 INFO L280 TraceCheckUtils]: 20: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet2; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,323 INFO L280 TraceCheckUtils]: 21: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,324 INFO L280 TraceCheckUtils]: 22: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,324 INFO L280 TraceCheckUtils]: 23: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,325 INFO L280 TraceCheckUtils]: 24: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,325 INFO L280 TraceCheckUtils]: 25: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem4.base, #t~mem4.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,326 INFO L280 TraceCheckUtils]: 26: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,327 INFO L280 TraceCheckUtils]: 27: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,327 INFO L280 TraceCheckUtils]: 28: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem5.base, #t~mem5.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,328 INFO L280 TraceCheckUtils]: 29: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,328 INFO L280 TraceCheckUtils]: 30: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,328 INFO L280 TraceCheckUtils]: 31: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume 0 != #t~nondet6; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,329 INFO L280 TraceCheckUtils]: 32: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet6; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,329 INFO L280 TraceCheckUtils]: 33: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,330 INFO L280 TraceCheckUtils]: 34: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,330 INFO L280 TraceCheckUtils]: 35: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,331 INFO L280 TraceCheckUtils]: 36: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem10; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,331 INFO L280 TraceCheckUtils]: 37: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} goto; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,332 INFO L280 TraceCheckUtils]: 38: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,332 INFO L280 TraceCheckUtils]: 39: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,333 INFO L280 TraceCheckUtils]: 40: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem11.base, #t~mem11.offset; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,333 INFO L280 TraceCheckUtils]: 41: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} goto; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,334 INFO L280 TraceCheckUtils]: 42: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,334 INFO L280 TraceCheckUtils]: 43: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} goto; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,335 INFO L280 TraceCheckUtils]: 44: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,335 INFO L280 TraceCheckUtils]: 45: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} assume !!(0 != #t~nondet2); {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,336 INFO L280 TraceCheckUtils]: 46: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet2; {10291#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-08 22:25:14,337 INFO L280 TraceCheckUtils]: 47: Hoare triple {10291#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {10292#(not (= |main_#t~malloc3.base| main_~null~0.base))} is VALID [2020-07-08 22:25:14,338 INFO L280 TraceCheckUtils]: 48: Hoare triple {10292#(not (= |main_#t~malloc3.base| main_~null~0.base))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:14,339 INFO L280 TraceCheckUtils]: 49: Hoare triple {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {10294#(not (= main_~null~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 22:25:14,340 INFO L280 TraceCheckUtils]: 50: Hoare triple {10294#(not (= main_~null~0.base (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:14,341 INFO L280 TraceCheckUtils]: 51: Hoare triple {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} havoc #t~mem4.base, #t~mem4.offset; {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:14,341 INFO L280 TraceCheckUtils]: 52: Hoare triple {10293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {10295#(not (= |main_#t~mem5.base| main_~null~0.base))} is VALID [2020-07-08 22:25:14,342 INFO L280 TraceCheckUtils]: 53: Hoare triple {10295#(not (= |main_#t~mem5.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,342 INFO L280 TraceCheckUtils]: 54: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem5.base, #t~mem5.offset; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,343 INFO L280 TraceCheckUtils]: 55: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,343 INFO L280 TraceCheckUtils]: 56: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,344 INFO L280 TraceCheckUtils]: 57: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} assume 0 != #t~nondet6; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,344 INFO L280 TraceCheckUtils]: 58: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} havoc #t~nondet6; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,345 INFO L280 TraceCheckUtils]: 59: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,345 INFO L280 TraceCheckUtils]: 60: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,346 INFO L280 TraceCheckUtils]: 61: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,346 INFO L280 TraceCheckUtils]: 62: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,347 INFO L280 TraceCheckUtils]: 63: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} goto; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,347 INFO L280 TraceCheckUtils]: 64: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,348 INFO L280 TraceCheckUtils]: 65: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,348 INFO L280 TraceCheckUtils]: 66: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,349 INFO L280 TraceCheckUtils]: 67: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} goto; {10296#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:14,349 INFO L280 TraceCheckUtils]: 68: Hoare triple {10296#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {10284#false} is VALID [2020-07-08 22:25:14,349 INFO L280 TraceCheckUtils]: 69: Hoare triple {10284#false} assume !false; {10284#false} is VALID [2020-07-08 22:25:14,354 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 22:25:14,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361036679] [2020-07-08 22:25:14,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:14,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-07-08 22:25:14,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385794431] [2020-07-08 22:25:14,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-08 22:25:14,355 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:14,356 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 22:25:14,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:14,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 22:25:14,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:14,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 22:25:14,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-08 22:25:14,438 INFO L87 Difference]: Start difference. First operand 201 states and 210 transitions. Second operand 10 states. [2020-07-08 22:25:17,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:17,395 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-07-08 22:25:17,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 22:25:17,395 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-08 22:25:17,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 22:25:17,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2020-07-08 22:25:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 22:25:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2020-07-08 22:25:17,399 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 124 transitions. [2020-07-08 22:25:17,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:17,575 INFO L225 Difference]: With dead ends: 227 [2020-07-08 22:25:17,575 INFO L226 Difference]: Without dead ends: 225 [2020-07-08 22:25:17,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-07-08 22:25:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-08 22:25:19,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2020-07-08 22:25:19,080 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:19,080 INFO L82 GeneralOperation]: Start isEquivalent. First operand 225 states. Second operand 201 states. [2020-07-08 22:25:19,080 INFO L74 IsIncluded]: Start isIncluded. First operand 225 states. Second operand 201 states. [2020-07-08 22:25:19,080 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 201 states. [2020-07-08 22:25:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:19,088 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-08 22:25:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-08 22:25:19,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:19,089 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:19,089 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 225 states. [2020-07-08 22:25:19,090 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 225 states. [2020-07-08 22:25:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:19,095 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-08 22:25:19,095 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-08 22:25:19,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:19,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:19,096 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:19,096 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-08 22:25:19,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 209 transitions. [2020-07-08 22:25:19,101 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 209 transitions. Word has length 70 [2020-07-08 22:25:19,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:19,101 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 209 transitions. [2020-07-08 22:25:19,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 22:25:19,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 209 transitions. [2020-07-08 22:25:19,653 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 209 transitions. [2020-07-08 22:25:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 22:25:19,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:19,655 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, 1, 1, 1, 1] [2020-07-08 22:25:19,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 22:25:19,655 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-07-08 22:25:19,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:19,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2009211438] [2020-07-08 22:25:19,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:20,942 INFO L280 TraceCheckUtils]: 0: Hoare triple {11653#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {11624#true} is VALID [2020-07-08 22:25:20,943 INFO L280 TraceCheckUtils]: 1: Hoare triple {11624#true} #valid := #valid[0 := 0]; {11624#true} is VALID [2020-07-08 22:25:20,943 INFO L280 TraceCheckUtils]: 2: Hoare triple {11624#true} assume 0 < #StackHeapBarrier; {11624#true} is VALID [2020-07-08 22:25:20,943 INFO L280 TraceCheckUtils]: 3: Hoare triple {11624#true} assume true; {11624#true} is VALID [2020-07-08 22:25:20,943 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {11624#true} {11624#true} #260#return; {11624#true} is VALID [2020-07-08 22:25:20,944 INFO L263 TraceCheckUtils]: 0: Hoare triple {11624#true} call ULTIMATE.init(); {11653#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:20,944 INFO L280 TraceCheckUtils]: 1: Hoare triple {11653#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {11624#true} is VALID [2020-07-08 22:25:20,944 INFO L280 TraceCheckUtils]: 2: Hoare triple {11624#true} #valid := #valid[0 := 0]; {11624#true} is VALID [2020-07-08 22:25:20,944 INFO L280 TraceCheckUtils]: 3: Hoare triple {11624#true} assume 0 < #StackHeapBarrier; {11624#true} is VALID [2020-07-08 22:25:20,944 INFO L280 TraceCheckUtils]: 4: Hoare triple {11624#true} assume true; {11624#true} is VALID [2020-07-08 22:25:20,945 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {11624#true} {11624#true} #260#return; {11624#true} is VALID [2020-07-08 22:25:20,945 INFO L263 TraceCheckUtils]: 6: Hoare triple {11624#true} call #t~ret21 := main(); {11624#true} is VALID [2020-07-08 22:25:20,945 INFO L280 TraceCheckUtils]: 7: Hoare triple {11624#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {11631#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:25:20,946 INFO L280 TraceCheckUtils]: 8: Hoare triple {11631#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {11632#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:20,946 INFO L280 TraceCheckUtils]: 9: Hoare triple {11632#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {11632#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:20,947 INFO L280 TraceCheckUtils]: 10: Hoare triple {11632#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {11632#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:20,947 INFO L280 TraceCheckUtils]: 11: Hoare triple {11632#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {11632#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:20,949 INFO L280 TraceCheckUtils]: 12: Hoare triple {11632#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {11633#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset))} is VALID [2020-07-08 22:25:20,949 INFO L280 TraceCheckUtils]: 13: Hoare triple {11633#(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; {11634#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:20,950 INFO L280 TraceCheckUtils]: 14: Hoare triple {11634#(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: L993 {11634#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:20,950 INFO L280 TraceCheckUtils]: 15: Hoare triple {11634#(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, 4 + ~list~0.offset, 4); srcloc: L993-1 {11634#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:20,951 INFO L280 TraceCheckUtils]: 16: Hoare triple {11634#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {11634#(and (= 0 main_~null~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:20,951 INFO L280 TraceCheckUtils]: 17: Hoare triple {11634#(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; {11635#(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 [2020-07-08 22:25:20,952 INFO L280 TraceCheckUtils]: 18: Hoare triple {11635#(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; {11635#(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 [2020-07-08 22:25:20,952 INFO L280 TraceCheckUtils]: 19: Hoare triple {11635#(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); {11635#(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 [2020-07-08 22:25:20,953 INFO L280 TraceCheckUtils]: 20: Hoare triple {11635#(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; {11635#(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 [2020-07-08 22:25:20,954 INFO L280 TraceCheckUtils]: 21: Hoare triple {11635#(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(12); srcloc: L1003 {11636#(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 [2020-07-08 22:25:20,954 INFO L280 TraceCheckUtils]: 22: Hoare triple {11636#(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: L1003-1 {11637#(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 [2020-07-08 22:25:20,955 INFO L280 TraceCheckUtils]: 23: Hoare triple {11637#(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: L1003-2 {11638#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 22:25:20,956 INFO L280 TraceCheckUtils]: 24: Hoare triple {11638#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {11637#(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 [2020-07-08 22:25:20,957 INFO L280 TraceCheckUtils]: 25: Hoare triple {11637#(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)))} havoc #t~mem4.base, #t~mem4.offset; {11637#(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 [2020-07-08 22:25:20,958 INFO L280 TraceCheckUtils]: 26: Hoare triple {11637#(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~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {11639#(and (= 0 |main_#t~mem5.offset|) (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-08 22:25:20,959 INFO L280 TraceCheckUtils]: 27: Hoare triple {11639#(and (= 0 |main_#t~mem5.offset|) (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,960 INFO L280 TraceCheckUtils]: 28: Hoare triple {11640#(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) (= 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)))} havoc #t~mem5.base, #t~mem5.offset; {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,961 INFO L280 TraceCheckUtils]: 29: Hoare triple {11640#(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) (= 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)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,962 INFO L280 TraceCheckUtils]: 30: Hoare triple {11640#(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) (= 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)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,963 INFO L280 TraceCheckUtils]: 31: Hoare triple {11640#(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) (= 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)))} assume 0 != #t~nondet6; {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,964 INFO L280 TraceCheckUtils]: 32: Hoare triple {11640#(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) (= 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)))} havoc #t~nondet6; {11640#(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) (= 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)))} is VALID [2020-07-08 22:25:20,965 INFO L280 TraceCheckUtils]: 33: Hoare triple {11640#(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) (= 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)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {11641#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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))} is VALID [2020-07-08 22:25:20,966 INFO L280 TraceCheckUtils]: 34: Hoare triple {11641#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {11642#(and (= |main_#t~mem10| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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))} is VALID [2020-07-08 22:25:20,967 INFO L280 TraceCheckUtils]: 35: Hoare triple {11642#(and (= |main_#t~mem10| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))) (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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))} assume !!(~unnamed1~0~BLACK == #t~mem10); {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,968 INFO L280 TraceCheckUtils]: 36: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} havoc #t~mem10; {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,969 INFO L280 TraceCheckUtils]: 37: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} goto; {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,970 INFO L280 TraceCheckUtils]: 38: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,971 INFO L280 TraceCheckUtils]: 39: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,972 INFO L280 TraceCheckUtils]: 40: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} havoc #t~mem11.base, #t~mem11.offset; {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,972 INFO L280 TraceCheckUtils]: 41: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} goto; {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,973 INFO L280 TraceCheckUtils]: 42: Hoare triple {11643#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= 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) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,974 INFO L280 TraceCheckUtils]: 43: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} goto; {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,975 INFO L280 TraceCheckUtils]: 44: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,975 INFO L280 TraceCheckUtils]: 45: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} assume !(0 != #t~nondet2); {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,976 INFO L280 TraceCheckUtils]: 46: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} havoc #t~nondet2; {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,977 INFO L280 TraceCheckUtils]: 47: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,977 INFO L280 TraceCheckUtils]: 48: Hoare triple {11644#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)) (+ main_~null~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,978 INFO L280 TraceCheckUtils]: 49: Hoare triple {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,982 INFO L280 TraceCheckUtils]: 50: Hoare triple {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} goto; {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,983 INFO L280 TraceCheckUtils]: 51: Hoare triple {11645#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8))))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {11646#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,984 INFO L280 TraceCheckUtils]: 52: Hoare triple {11646#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))) (= ~unnamed1~0~BLACK (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (+ main_~null~0.offset 8))))} assume !!(~unnamed1~0~BLACK == #t~mem12); {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,984 INFO L280 TraceCheckUtils]: 53: Hoare triple {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} havoc #t~mem12; {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,985 INFO L280 TraceCheckUtils]: 54: Hoare triple {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} goto; {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,986 INFO L280 TraceCheckUtils]: 55: Hoare triple {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:20,987 INFO L280 TraceCheckUtils]: 56: Hoare triple {11647#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {11648#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= |main_#t~mem13| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (+ main_~null~0.offset 8))))} is VALID [2020-07-08 22:25:20,992 INFO L280 TraceCheckUtils]: 57: Hoare triple {11648#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (= |main_#t~mem13| (select (select |#memory_int| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset)) (+ main_~null~0.offset 8))))} assume !(~unnamed1~0~RED == #t~mem13); {11649#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) ~unnamed1~0~RED)))} is VALID [2020-07-08 22:25:20,993 INFO L280 TraceCheckUtils]: 58: Hoare triple {11649#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) ~unnamed1~0~RED)))} havoc #t~mem13; {11649#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) ~unnamed1~0~RED)))} is VALID [2020-07-08 22:25:20,994 INFO L280 TraceCheckUtils]: 59: Hoare triple {11649#(and (= 0 main_~null~0.offset) (= 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)) (+ main_~null~0.offset 8)) ~unnamed1~0~RED)))} SUMMARY for call #t~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1034-4 {11650#(and (= 0 |main_#t~mem16.offset|) (= 0 main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| |main_#t~mem16.base|) (+ main_~null~0.offset 8)))))} is VALID [2020-07-08 22:25:20,995 INFO L280 TraceCheckUtils]: 60: Hoare triple {11650#(and (= 0 |main_#t~mem16.offset|) (= 0 main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| |main_#t~mem16.base|) (+ main_~null~0.offset 8)))))} ~end~0.base, ~end~0.offset := #t~mem16.base, #t~mem16.offset; {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} is VALID [2020-07-08 22:25:20,995 INFO L280 TraceCheckUtils]: 61: Hoare triple {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} havoc #t~mem16.base, #t~mem16.offset; {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} is VALID [2020-07-08 22:25:20,996 INFO L280 TraceCheckUtils]: 62: Hoare triple {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} is VALID [2020-07-08 22:25:20,996 INFO L280 TraceCheckUtils]: 63: Hoare triple {11651#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= ~unnamed1~0~RED (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))))} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {11652#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= |main_#t~mem13| ~unnamed1~0~RED)))} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 64: Hoare triple {11652#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (not (= |main_#t~mem13| ~unnamed1~0~RED)))} assume ~unnamed1~0~RED == #t~mem13; {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 65: Hoare triple {11625#false} havoc #t~mem13; {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 66: Hoare triple {11625#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 67: Hoare triple {11625#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 68: Hoare triple {11625#false} havoc #t~mem14.base, #t~mem14.offset; {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 69: Hoare triple {11625#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {11625#false} is VALID [2020-07-08 22:25:20,997 INFO L280 TraceCheckUtils]: 70: Hoare triple {11625#false} assume !false; {11625#false} is VALID [2020-07-08 22:25:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:25:21,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2009211438] [2020-07-08 22:25:21,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:21,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-07-08 22:25:21,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447692234] [2020-07-08 22:25:21,018 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2020-07-08 22:25:21,018 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:21,018 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2020-07-08 22:25:21,115 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 71 edges. 71 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:21,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-08 22:25:21,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:21,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-08 22:25:21,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2020-07-08 22:25:21,117 INFO L87 Difference]: Start difference. First operand 201 states and 209 transitions. Second operand 25 states. [2020-07-08 22:25:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:28,233 INFO L93 Difference]: Finished difference Result 278 states and 289 transitions. [2020-07-08 22:25:28,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-08 22:25:28,234 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 71 [2020-07-08 22:25:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 217 transitions. [2020-07-08 22:25:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:28,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 217 transitions. [2020-07-08 22:25:28,242 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 217 transitions. [2020-07-08 22:25:28,560 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 217 edges. 217 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:28,570 INFO L225 Difference]: With dead ends: 278 [2020-07-08 22:25:28,570 INFO L226 Difference]: Without dead ends: 256 [2020-07-08 22:25:28,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=380, Invalid=1782, Unknown=0, NotChecked=0, Total=2162 [2020-07-08 22:25:28,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-07-08 22:25:30,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 217. [2020-07-08 22:25:30,237 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:30,237 INFO L82 GeneralOperation]: Start isEquivalent. First operand 256 states. Second operand 217 states. [2020-07-08 22:25:30,237 INFO L74 IsIncluded]: Start isIncluded. First operand 256 states. Second operand 217 states. [2020-07-08 22:25:30,237 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 217 states. [2020-07-08 22:25:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:30,244 INFO L93 Difference]: Finished difference Result 256 states and 265 transitions. [2020-07-08 22:25:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 265 transitions. [2020-07-08 22:25:30,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:30,245 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:30,245 INFO L74 IsIncluded]: Start isIncluded. First operand 217 states. Second operand 256 states. [2020-07-08 22:25:30,246 INFO L87 Difference]: Start difference. First operand 217 states. Second operand 256 states. [2020-07-08 22:25:30,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:30,252 INFO L93 Difference]: Finished difference Result 256 states and 265 transitions. [2020-07-08 22:25:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 265 transitions. [2020-07-08 22:25:30,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:30,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:30,253 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:30,253 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:30,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-08 22:25:30,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 225 transitions. [2020-07-08 22:25:30,258 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 225 transitions. Word has length 71 [2020-07-08 22:25:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:30,259 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 225 transitions. [2020-07-08 22:25:30,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-08 22:25:30,259 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 217 states and 225 transitions. [2020-07-08 22:25:30,943 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 225 edges. 225 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 225 transitions. [2020-07-08 22:25:30,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-08 22:25:30,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:30,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:25:30,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 22:25:30,945 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:30,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:30,946 INFO L82 PathProgramCache]: Analyzing trace with hash 181469332, now seen corresponding path program 2 times [2020-07-08 22:25:30,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:30,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078149921] [2020-07-08 22:25:30,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:31,490 INFO L280 TraceCheckUtils]: 0: Hoare triple {13226#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {13202#true} is VALID [2020-07-08 22:25:31,491 INFO L280 TraceCheckUtils]: 1: Hoare triple {13202#true} #valid := #valid[0 := 0]; {13202#true} is VALID [2020-07-08 22:25:31,491 INFO L280 TraceCheckUtils]: 2: Hoare triple {13202#true} assume 0 < #StackHeapBarrier; {13202#true} is VALID [2020-07-08 22:25:31,491 INFO L280 TraceCheckUtils]: 3: Hoare triple {13202#true} assume true; {13202#true} is VALID [2020-07-08 22:25:31,491 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {13202#true} {13202#true} #260#return; {13202#true} is VALID [2020-07-08 22:25:31,492 INFO L263 TraceCheckUtils]: 0: Hoare triple {13202#true} call ULTIMATE.init(); {13226#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:31,492 INFO L280 TraceCheckUtils]: 1: Hoare triple {13226#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {13202#true} is VALID [2020-07-08 22:25:31,492 INFO L280 TraceCheckUtils]: 2: Hoare triple {13202#true} #valid := #valid[0 := 0]; {13202#true} is VALID [2020-07-08 22:25:31,493 INFO L280 TraceCheckUtils]: 3: Hoare triple {13202#true} assume 0 < #StackHeapBarrier; {13202#true} is VALID [2020-07-08 22:25:31,493 INFO L280 TraceCheckUtils]: 4: Hoare triple {13202#true} assume true; {13202#true} is VALID [2020-07-08 22:25:31,493 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {13202#true} {13202#true} #260#return; {13202#true} is VALID [2020-07-08 22:25:31,493 INFO L263 TraceCheckUtils]: 6: Hoare triple {13202#true} call #t~ret21 := main(); {13202#true} is VALID [2020-07-08 22:25:31,493 INFO L280 TraceCheckUtils]: 7: Hoare triple {13202#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {13202#true} is VALID [2020-07-08 22:25:31,494 INFO L280 TraceCheckUtils]: 8: Hoare triple {13202#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {13202#true} is VALID [2020-07-08 22:25:31,494 INFO L280 TraceCheckUtils]: 9: Hoare triple {13202#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {13202#true} is VALID [2020-07-08 22:25:31,494 INFO L280 TraceCheckUtils]: 10: Hoare triple {13202#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {13202#true} is VALID [2020-07-08 22:25:31,494 INFO L280 TraceCheckUtils]: 11: Hoare triple {13202#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {13202#true} is VALID [2020-07-08 22:25:31,495 INFO L280 TraceCheckUtils]: 12: Hoare triple {13202#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {13209#(= 1 (select |#valid| |main_#t~malloc1.base|))} is VALID [2020-07-08 22:25:31,496 INFO L280 TraceCheckUtils]: 13: Hoare triple {13209#(= 1 (select |#valid| |main_#t~malloc1.base|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {13210#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 22:25:31,496 INFO L280 TraceCheckUtils]: 14: Hoare triple {13210#(= 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: L993 {13210#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 22:25:31,497 INFO L280 TraceCheckUtils]: 15: Hoare triple {13210#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {13210#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 22:25:31,497 INFO L280 TraceCheckUtils]: 16: Hoare triple {13210#(= 1 (select |#valid| main_~list~0.base))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {13210#(= 1 (select |#valid| main_~list~0.base))} is VALID [2020-07-08 22:25:31,498 INFO L280 TraceCheckUtils]: 17: Hoare triple {13210#(= 1 (select |#valid| main_~list~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {13211#(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 [2020-07-08 22:25:31,498 INFO L280 TraceCheckUtils]: 18: Hoare triple {13211#(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; {13211#(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 [2020-07-08 22:25:31,499 INFO L280 TraceCheckUtils]: 19: Hoare triple {13211#(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); {13211#(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 [2020-07-08 22:25:31,500 INFO L280 TraceCheckUtils]: 20: Hoare triple {13211#(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; {13211#(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 [2020-07-08 22:25:31,501 INFO L280 TraceCheckUtils]: 21: Hoare triple {13211#(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(12); srcloc: L1003 {13212#(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 [2020-07-08 22:25:31,502 INFO L280 TraceCheckUtils]: 22: Hoare triple {13212#(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: L1003-1 {13213#(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 [2020-07-08 22:25:31,502 INFO L280 TraceCheckUtils]: 23: Hoare triple {13213#(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: L1003-2 {13214#(and (= main_~list~0.offset main_~end~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|))} is VALID [2020-07-08 22:25:31,503 INFO L280 TraceCheckUtils]: 24: Hoare triple {13214#(and (= main_~list~0.offset main_~end~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {13213#(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 [2020-07-08 22:25:31,504 INFO L280 TraceCheckUtils]: 25: Hoare triple {13213#(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))} havoc #t~mem4.base, #t~mem4.offset; {13213#(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 [2020-07-08 22:25:31,505 INFO L280 TraceCheckUtils]: 26: Hoare triple {13213#(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~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {13215#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-08 22:25:31,506 INFO L280 TraceCheckUtils]: 27: Hoare triple {13215#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,507 INFO L280 TraceCheckUtils]: 28: Hoare triple {13216#(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)) (= main_~end~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)))} havoc #t~mem5.base, #t~mem5.offset; {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,508 INFO L280 TraceCheckUtils]: 29: Hoare triple {13216#(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)) (= main_~end~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)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,509 INFO L280 TraceCheckUtils]: 30: Hoare triple {13216#(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)) (= main_~end~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)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,510 INFO L280 TraceCheckUtils]: 31: Hoare triple {13216#(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)) (= main_~end~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)))} assume 0 != #t~nondet6; {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,510 INFO L280 TraceCheckUtils]: 32: Hoare triple {13216#(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)) (= main_~end~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)))} havoc #t~nondet6; {13216#(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)) (= main_~end~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)))} is VALID [2020-07-08 22:25:31,512 INFO L280 TraceCheckUtils]: 33: Hoare triple {13216#(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)) (= main_~end~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)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {13217#(and (= (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 [2020-07-08 22:25:31,512 INFO L280 TraceCheckUtils]: 34: Hoare triple {13217#(and (= (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 #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {13217#(and (= (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 [2020-07-08 22:25:31,513 INFO L280 TraceCheckUtils]: 35: Hoare triple {13217#(and (= (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 !!(~unnamed1~0~BLACK == #t~mem10); {13217#(and (= (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 [2020-07-08 22:25:31,514 INFO L280 TraceCheckUtils]: 36: Hoare triple {13217#(and (= (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~mem10; {13217#(and (= (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 [2020-07-08 22:25:31,514 INFO L280 TraceCheckUtils]: 37: Hoare triple {13217#(and (= (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)))} goto; {13217#(and (= (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 [2020-07-08 22:25:31,515 INFO L280 TraceCheckUtils]: 38: Hoare triple {13217#(and (= (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 #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {13218#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.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 [2020-07-08 22:25:31,516 INFO L280 TraceCheckUtils]: 39: Hoare triple {13218#(and (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.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)))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {13219#(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) (= (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 [2020-07-08 22:25:31,516 INFO L280 TraceCheckUtils]: 40: Hoare triple {13219#(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) (= (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~mem11.base, #t~mem11.offset; {13219#(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) (= (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 [2020-07-08 22:25:31,517 INFO L280 TraceCheckUtils]: 41: Hoare triple {13219#(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) (= (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)))} goto; {13219#(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) (= (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 [2020-07-08 22:25:31,518 INFO L280 TraceCheckUtils]: 42: Hoare triple {13219#(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) (= (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 !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {13220#(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 [2020-07-08 22:25:31,519 INFO L280 TraceCheckUtils]: 43: Hoare triple {13220#(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))} goto; {13220#(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 [2020-07-08 22:25:31,521 INFO L280 TraceCheckUtils]: 44: Hoare triple {13220#(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; {13220#(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 [2020-07-08 22:25:31,522 INFO L280 TraceCheckUtils]: 45: Hoare triple {13220#(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); {13220#(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 [2020-07-08 22:25:31,522 INFO L280 TraceCheckUtils]: 46: Hoare triple {13220#(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; {13220#(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 [2020-07-08 22:25:31,523 INFO L280 TraceCheckUtils]: 47: Hoare triple {13220#(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; {13220#(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 [2020-07-08 22:25:31,524 INFO L280 TraceCheckUtils]: 48: Hoare triple {13220#(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; {13221#(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 [2020-07-08 22:25:31,525 INFO L280 TraceCheckUtils]: 49: Hoare triple {13221#(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); {13221#(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 [2020-07-08 22:25:31,525 INFO L280 TraceCheckUtils]: 50: Hoare triple {13221#(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; {13221#(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 [2020-07-08 22:25:31,526 INFO L280 TraceCheckUtils]: 51: Hoare triple {13221#(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 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {13221#(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 [2020-07-08 22:25:31,527 INFO L280 TraceCheckUtils]: 52: Hoare triple {13221#(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~mem12); {13221#(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 [2020-07-08 22:25:31,527 INFO L280 TraceCheckUtils]: 53: Hoare triple {13221#(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~mem12; {13221#(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 [2020-07-08 22:25:31,528 INFO L280 TraceCheckUtils]: 54: Hoare triple {13221#(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; {13221#(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 [2020-07-08 22:25:31,528 INFO L280 TraceCheckUtils]: 55: Hoare triple {13221#(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); {13221#(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 [2020-07-08 22:25:31,529 INFO L280 TraceCheckUtils]: 56: Hoare triple {13221#(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~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {13221#(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 [2020-07-08 22:25:31,529 INFO L280 TraceCheckUtils]: 57: Hoare triple {13221#(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~mem13); {13221#(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 [2020-07-08 22:25:31,530 INFO L280 TraceCheckUtils]: 58: Hoare triple {13221#(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~mem13; {13221#(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 [2020-07-08 22:25:31,531 INFO L280 TraceCheckUtils]: 59: Hoare triple {13221#(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~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1034-4 {13222#(and (= (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.offset))} is VALID [2020-07-08 22:25:31,531 INFO L280 TraceCheckUtils]: 60: Hoare triple {13222#(and (= (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.base) (= (select (select |#memory_$Pointer$.offset| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.offset))} ~end~0.base, ~end~0.offset := #t~mem16.base, #t~mem16.offset; {13223#(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 [2020-07-08 22:25:31,532 INFO L280 TraceCheckUtils]: 61: Hoare triple {13223#(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~mem16.base, #t~mem16.offset; {13223#(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 [2020-07-08 22:25:31,532 INFO L280 TraceCheckUtils]: 62: Hoare triple {13223#(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); {13223#(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 [2020-07-08 22:25:31,533 INFO L280 TraceCheckUtils]: 63: Hoare triple {13223#(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~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {13223#(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 [2020-07-08 22:25:31,533 INFO L280 TraceCheckUtils]: 64: Hoare triple {13223#(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~mem13); {13223#(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 [2020-07-08 22:25:31,534 INFO L280 TraceCheckUtils]: 65: Hoare triple {13223#(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~mem13; {13223#(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 [2020-07-08 22:25:31,534 INFO L280 TraceCheckUtils]: 66: Hoare triple {13223#(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~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1034-4 {13224#(and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base))} is VALID [2020-07-08 22:25:31,534 INFO L280 TraceCheckUtils]: 67: Hoare triple {13224#(and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem16.base, #t~mem16.offset; {13225#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:31,535 INFO L280 TraceCheckUtils]: 68: Hoare triple {13225#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} havoc #t~mem16.base, #t~mem16.offset; {13225#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:31,535 INFO L280 TraceCheckUtils]: 69: Hoare triple {13225#(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); {13203#false} is VALID [2020-07-08 22:25:31,535 INFO L280 TraceCheckUtils]: 70: Hoare triple {13203#false} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 71: Hoare triple {13203#false} assume ~unnamed1~0~RED == #t~mem13; {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 72: Hoare triple {13203#false} havoc #t~mem13; {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 73: Hoare triple {13203#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 74: Hoare triple {13203#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 75: Hoare triple {13203#false} havoc #t~mem14.base, #t~mem14.offset; {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 76: Hoare triple {13203#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {13203#false} is VALID [2020-07-08 22:25:31,536 INFO L280 TraceCheckUtils]: 77: Hoare triple {13203#false} assume !false; {13203#false} is VALID [2020-07-08 22:25:31,554 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:25:31,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078149921] [2020-07-08 22:25:31,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:31,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-07-08 22:25:31,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401603119] [2020-07-08 22:25:31,555 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 78 [2020-07-08 22:25:31,556 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:31,556 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2020-07-08 22:25:31,657 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:31,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-08 22:25:31,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:31,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-08 22:25:31,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2020-07-08 22:25:31,659 INFO L87 Difference]: Start difference. First operand 217 states and 225 transitions. Second operand 20 states. [2020-07-08 22:25:37,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:37,302 INFO L93 Difference]: Finished difference Result 258 states and 267 transitions. [2020-07-08 22:25:37,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-08 22:25:37,302 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 78 [2020-07-08 22:25:37,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-08 22:25:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 195 transitions. [2020-07-08 22:25:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-07-08 22:25:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 195 transitions. [2020-07-08 22:25:37,307 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 24 states and 195 transitions. [2020-07-08 22:25:37,593 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 195 edges. 195 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:37,597 INFO L225 Difference]: With dead ends: 258 [2020-07-08 22:25:37,598 INFO L226 Difference]: Without dead ends: 212 [2020-07-08 22:25:37,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2020-07-08 22:25:37,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-07-08 22:25:39,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 201. [2020-07-08 22:25:39,156 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:39,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 212 states. Second operand 201 states. [2020-07-08 22:25:39,156 INFO L74 IsIncluded]: Start isIncluded. First operand 212 states. Second operand 201 states. [2020-07-08 22:25:39,156 INFO L87 Difference]: Start difference. First operand 212 states. Second operand 201 states. [2020-07-08 22:25:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:39,161 INFO L93 Difference]: Finished difference Result 212 states and 219 transitions. [2020-07-08 22:25:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 219 transitions. [2020-07-08 22:25:39,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:39,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:39,162 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 212 states. [2020-07-08 22:25:39,162 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 212 states. [2020-07-08 22:25:39,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:39,166 INFO L93 Difference]: Finished difference Result 212 states and 219 transitions. [2020-07-08 22:25:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 219 transitions. [2020-07-08 22:25:39,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:39,168 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:39,168 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:39,168 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:39,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-08 22:25:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 208 transitions. [2020-07-08 22:25:39,172 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 208 transitions. Word has length 78 [2020-07-08 22:25:39,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:39,173 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 208 transitions. [2020-07-08 22:25:39,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-08 22:25:39,173 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 208 transitions. [2020-07-08 22:25:39,859 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 208 edges. 208 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 208 transitions. [2020-07-08 22:25:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-08 22:25:39,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:39,860 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2020-07-08 22:25:39,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-08 22:25:39,861 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:39,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:39,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1069144387, now seen corresponding path program 2 times [2020-07-08 22:25:39,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:39,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730778118] [2020-07-08 22:25:39,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:41,392 INFO L280 TraceCheckUtils]: 0: Hoare triple {14640#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {14611#true} is VALID [2020-07-08 22:25:41,392 INFO L280 TraceCheckUtils]: 1: Hoare triple {14611#true} #valid := #valid[0 := 0]; {14611#true} is VALID [2020-07-08 22:25:41,392 INFO L280 TraceCheckUtils]: 2: Hoare triple {14611#true} assume 0 < #StackHeapBarrier; {14611#true} is VALID [2020-07-08 22:25:41,392 INFO L280 TraceCheckUtils]: 3: Hoare triple {14611#true} assume true; {14611#true} is VALID [2020-07-08 22:25:41,393 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {14611#true} {14611#true} #260#return; {14611#true} is VALID [2020-07-08 22:25:41,393 INFO L263 TraceCheckUtils]: 0: Hoare triple {14611#true} call ULTIMATE.init(); {14640#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:41,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {14640#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {14611#true} is VALID [2020-07-08 22:25:41,394 INFO L280 TraceCheckUtils]: 2: Hoare triple {14611#true} #valid := #valid[0 := 0]; {14611#true} is VALID [2020-07-08 22:25:41,394 INFO L280 TraceCheckUtils]: 3: Hoare triple {14611#true} assume 0 < #StackHeapBarrier; {14611#true} is VALID [2020-07-08 22:25:41,394 INFO L280 TraceCheckUtils]: 4: Hoare triple {14611#true} assume true; {14611#true} is VALID [2020-07-08 22:25:41,394 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {14611#true} {14611#true} #260#return; {14611#true} is VALID [2020-07-08 22:25:41,395 INFO L263 TraceCheckUtils]: 6: Hoare triple {14611#true} call #t~ret21 := main(); {14611#true} is VALID [2020-07-08 22:25:41,395 INFO L280 TraceCheckUtils]: 7: Hoare triple {14611#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {14618#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:25:41,396 INFO L280 TraceCheckUtils]: 8: Hoare triple {14618#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {14619#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:41,397 INFO L280 TraceCheckUtils]: 9: Hoare triple {14619#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {14619#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:41,397 INFO L280 TraceCheckUtils]: 10: Hoare triple {14619#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {14619#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:41,398 INFO L280 TraceCheckUtils]: 11: Hoare triple {14619#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {14619#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:41,399 INFO L280 TraceCheckUtils]: 12: Hoare triple {14619#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {14620#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|) (= |main_#t~malloc1.offset| main_~null~0.offset))} is VALID [2020-07-08 22:25:41,399 INFO L280 TraceCheckUtils]: 13: Hoare triple {14620#(and (= 1 (select |#valid| |main_#t~malloc1.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; {14621#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:41,400 INFO L280 TraceCheckUtils]: 14: Hoare triple {14621#(and (= 0 main_~null~0.offset) (= 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: L993 {14621#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:41,403 INFO L280 TraceCheckUtils]: 15: Hoare triple {14621#(and (= 0 main_~null~0.offset) (= 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, 4 + ~list~0.offset, 4); srcloc: L993-1 {14621#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:41,405 INFO L280 TraceCheckUtils]: 16: Hoare triple {14621#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {14622#(and (= 0 main_~null~0.offset) (= 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 8))))} is VALID [2020-07-08 22:25:41,406 INFO L280 TraceCheckUtils]: 17: Hoare triple {14622#(and (= 0 main_~null~0.offset) (= 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 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,407 INFO L280 TraceCheckUtils]: 18: Hoare triple {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,408 INFO L280 TraceCheckUtils]: 19: Hoare triple {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,409 INFO L280 TraceCheckUtils]: 20: Hoare triple {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,410 INFO L280 TraceCheckUtils]: 21: Hoare triple {14623#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {14624#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 0 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,412 INFO L280 TraceCheckUtils]: 22: Hoare triple {14624#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 0 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,413 INFO L280 TraceCheckUtils]: 23: Hoare triple {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {14626#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,415 INFO L280 TraceCheckUtils]: 24: Hoare triple {14626#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,416 INFO L280 TraceCheckUtils]: 25: Hoare triple {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem4.base, #t~mem4.offset; {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,418 INFO L280 TraceCheckUtils]: 26: Hoare triple {14625#(and (= 0 main_~null~0.offset) (= 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) (= (select (select |#memory_int| main_~end~0.base) (+ main_~list~0.offset 8)) ~unnamed1~0~BLACK) (not (= (+ main_~list~0.offset 8) main_~end~0.offset)) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {14627#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,421 INFO L280 TraceCheckUtils]: 27: Hoare triple {14627#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,422 INFO L280 TraceCheckUtils]: 28: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem5.base, #t~mem5.offset; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,423 INFO L280 TraceCheckUtils]: 29: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 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: L1006 {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,424 INFO L280 TraceCheckUtils]: 30: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,425 INFO L280 TraceCheckUtils]: 31: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume 0 != #t~nondet6; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,426 INFO L280 TraceCheckUtils]: 32: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet6; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,428 INFO L280 TraceCheckUtils]: 33: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,429 INFO L280 TraceCheckUtils]: 34: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,430 INFO L280 TraceCheckUtils]: 35: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !!(~unnamed1~0~BLACK == #t~mem10); {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,430 INFO L280 TraceCheckUtils]: 36: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem10; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,431 INFO L280 TraceCheckUtils]: 37: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} goto; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,432 INFO L280 TraceCheckUtils]: 38: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,433 INFO L280 TraceCheckUtils]: 39: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,434 INFO L280 TraceCheckUtils]: 40: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem11.base, #t~mem11.offset; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,435 INFO L280 TraceCheckUtils]: 41: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} goto; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,440 INFO L280 TraceCheckUtils]: 42: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,441 INFO L280 TraceCheckUtils]: 43: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} goto; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,442 INFO L280 TraceCheckUtils]: 44: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,443 INFO L280 TraceCheckUtils]: 45: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,443 INFO L280 TraceCheckUtils]: 46: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:41,445 INFO L280 TraceCheckUtils]: 47: Hoare triple {14628#(and (= 0 main_~null~0.offset) (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 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {14629#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,448 INFO L280 TraceCheckUtils]: 48: Hoare triple {14629#(and (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~list~0.base)) (= 0 main_~list~0.offset) (not (= |main_#t~malloc3.base| main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {14630#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:41,449 INFO L280 TraceCheckUtils]: 49: Hoare triple {14630#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (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: L1003-2 {14631#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~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 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:41,451 INFO L280 TraceCheckUtils]: 50: Hoare triple {14631#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~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 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {14632#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:41,452 INFO L280 TraceCheckUtils]: 51: Hoare triple {14632#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} havoc #t~mem4.base, #t~mem4.offset; {14632#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} is VALID [2020-07-08 22:25:41,453 INFO L280 TraceCheckUtils]: 52: Hoare triple {14632#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {14633#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,453 INFO L280 TraceCheckUtils]: 53: Hoare triple {14633#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {14634#(and (= 0 main_~null~0.offset) (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 8))))} is VALID [2020-07-08 22:25:41,454 INFO L280 TraceCheckUtils]: 54: Hoare triple {14634#(and (= 0 main_~null~0.offset) (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 8))))} havoc #t~mem5.base, #t~mem5.offset; {14634#(and (= 0 main_~null~0.offset) (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 8))))} is VALID [2020-07-08 22:25:41,455 INFO L280 TraceCheckUtils]: 55: Hoare triple {14634#(and (= 0 main_~null~0.offset) (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 8))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,456 INFO L280 TraceCheckUtils]: 56: Hoare triple {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,457 INFO L280 TraceCheckUtils]: 57: Hoare triple {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} assume 0 != #t~nondet6; {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,458 INFO L280 TraceCheckUtils]: 58: Hoare triple {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet6; {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,459 INFO L280 TraceCheckUtils]: 59: Hoare triple {14635#(and (= 0 main_~null~0.offset) (= 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 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,461 INFO L280 TraceCheckUtils]: 60: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,462 INFO L280 TraceCheckUtils]: 61: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~unnamed1~0~BLACK == #t~mem10); {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,463 INFO L280 TraceCheckUtils]: 62: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem10; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,464 INFO L280 TraceCheckUtils]: 63: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,465 INFO L280 TraceCheckUtils]: 64: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,466 INFO L280 TraceCheckUtils]: 65: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,467 INFO L280 TraceCheckUtils]: 66: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem11.base, #t~mem11.offset; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,468 INFO L280 TraceCheckUtils]: 67: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,469 INFO L280 TraceCheckUtils]: 68: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,473 INFO L280 TraceCheckUtils]: 69: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,474 INFO L280 TraceCheckUtils]: 70: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,475 INFO L280 TraceCheckUtils]: 71: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} assume !(0 != #t~nondet2); {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,476 INFO L280 TraceCheckUtils]: 72: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,477 INFO L280 TraceCheckUtils]: 73: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-08 22:25:41,478 INFO L280 TraceCheckUtils]: 74: Hoare triple {14636#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {14637#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} is VALID [2020-07-08 22:25:41,479 INFO L280 TraceCheckUtils]: 75: Hoare triple {14637#(and (= 0 main_~null~0.offset) (= main_~end~0.offset main_~null~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {14638#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:25:41,480 INFO L280 TraceCheckUtils]: 76: Hoare triple {14638#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {14638#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-08 22:25:41,481 INFO L280 TraceCheckUtils]: 77: Hoare triple {14638#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {14639#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-08 22:25:41,481 INFO L280 TraceCheckUtils]: 78: Hoare triple {14639#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {14612#false} is VALID [2020-07-08 22:25:41,482 INFO L280 TraceCheckUtils]: 79: Hoare triple {14612#false} havoc #t~mem12; {14612#false} is VALID [2020-07-08 22:25:41,482 INFO L280 TraceCheckUtils]: 80: Hoare triple {14612#false} assume !false; {14612#false} is VALID [2020-07-08 22:25:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:25:41,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730778118] [2020-07-08 22:25:41,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:41,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-07-08 22:25:41,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93013706] [2020-07-08 22:25:41,539 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 81 [2020-07-08 22:25:41,540 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:41,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2020-07-08 22:25:41,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:41,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-08 22:25:41,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:41,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-08 22:25:41,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2020-07-08 22:25:41,669 INFO L87 Difference]: Start difference. First operand 201 states and 208 transitions. Second operand 25 states. [2020-07-08 22:25:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:50,354 INFO L93 Difference]: Finished difference Result 281 states and 291 transitions. [2020-07-08 22:25:50,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-08 22:25:50,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 81 [2020-07-08 22:25:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:25:50,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 216 transitions. [2020-07-08 22:25:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 22:25:50,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 216 transitions. [2020-07-08 22:25:50,359 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 216 transitions. [2020-07-08 22:25:50,707 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 216 edges. 216 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:50,712 INFO L225 Difference]: With dead ends: 281 [2020-07-08 22:25:50,712 INFO L226 Difference]: Without dead ends: 278 [2020-07-08 22:25:50,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=553, Invalid=1799, Unknown=0, NotChecked=0, Total=2352 [2020-07-08 22:25:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-08 22:25:52,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 227. [2020-07-08 22:25:52,429 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:25:52,429 INFO L82 GeneralOperation]: Start isEquivalent. First operand 278 states. Second operand 227 states. [2020-07-08 22:25:52,429 INFO L74 IsIncluded]: Start isIncluded. First operand 278 states. Second operand 227 states. [2020-07-08 22:25:52,430 INFO L87 Difference]: Start difference. First operand 278 states. Second operand 227 states. [2020-07-08 22:25:52,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:52,436 INFO L93 Difference]: Finished difference Result 278 states and 288 transitions. [2020-07-08 22:25:52,436 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 288 transitions. [2020-07-08 22:25:52,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:52,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:52,437 INFO L74 IsIncluded]: Start isIncluded. First operand 227 states. Second operand 278 states. [2020-07-08 22:25:52,438 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 278 states. [2020-07-08 22:25:52,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:25:52,444 INFO L93 Difference]: Finished difference Result 278 states and 288 transitions. [2020-07-08 22:25:52,444 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 288 transitions. [2020-07-08 22:25:52,445 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:25:52,445 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:25:52,445 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:25:52,445 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:25:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-07-08 22:25:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 236 transitions. [2020-07-08 22:25:52,449 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 236 transitions. Word has length 81 [2020-07-08 22:25:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:25:52,450 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 236 transitions. [2020-07-08 22:25:52,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-08 22:25:52,450 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 227 states and 236 transitions. [2020-07-08 22:25:53,187 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:53,187 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 236 transitions. [2020-07-08 22:25:53,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-08 22:25:53,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:25:53,189 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:25:53,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-08 22:25:53,190 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:25:53,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:25:53,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1841803199, now seen corresponding path program 1 times [2020-07-08 22:25:53,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:25:53,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611318930] [2020-07-08 22:25:53,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:25:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:25:54,724 INFO L280 TraceCheckUtils]: 0: Hoare triple {16296#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {16263#true} is VALID [2020-07-08 22:25:54,725 INFO L280 TraceCheckUtils]: 1: Hoare triple {16263#true} #valid := #valid[0 := 0]; {16263#true} is VALID [2020-07-08 22:25:54,725 INFO L280 TraceCheckUtils]: 2: Hoare triple {16263#true} assume 0 < #StackHeapBarrier; {16263#true} is VALID [2020-07-08 22:25:54,725 INFO L280 TraceCheckUtils]: 3: Hoare triple {16263#true} assume true; {16263#true} is VALID [2020-07-08 22:25:54,725 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {16263#true} {16263#true} #260#return; {16263#true} is VALID [2020-07-08 22:25:54,726 INFO L263 TraceCheckUtils]: 0: Hoare triple {16263#true} call ULTIMATE.init(); {16296#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-08 22:25:54,726 INFO L280 TraceCheckUtils]: 1: Hoare triple {16296#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {16263#true} is VALID [2020-07-08 22:25:54,727 INFO L280 TraceCheckUtils]: 2: Hoare triple {16263#true} #valid := #valid[0 := 0]; {16263#true} is VALID [2020-07-08 22:25:54,727 INFO L280 TraceCheckUtils]: 3: Hoare triple {16263#true} assume 0 < #StackHeapBarrier; {16263#true} is VALID [2020-07-08 22:25:54,727 INFO L280 TraceCheckUtils]: 4: Hoare triple {16263#true} assume true; {16263#true} is VALID [2020-07-08 22:25:54,727 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {16263#true} {16263#true} #260#return; {16263#true} is VALID [2020-07-08 22:25:54,727 INFO L263 TraceCheckUtils]: 6: Hoare triple {16263#true} call #t~ret21 := main(); {16263#true} is VALID [2020-07-08 22:25:54,728 INFO L280 TraceCheckUtils]: 7: Hoare triple {16263#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {16270#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-08 22:25:54,729 INFO L280 TraceCheckUtils]: 8: Hoare triple {16270#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {16271#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:54,729 INFO L280 TraceCheckUtils]: 9: Hoare triple {16271#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {16271#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:54,730 INFO L280 TraceCheckUtils]: 10: Hoare triple {16271#(= 0 main_~null~0.offset)} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {16271#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:54,730 INFO L280 TraceCheckUtils]: 11: Hoare triple {16271#(= 0 main_~null~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {16271#(= 0 main_~null~0.offset)} is VALID [2020-07-08 22:25:54,731 INFO L280 TraceCheckUtils]: 12: Hoare triple {16271#(= 0 main_~null~0.offset)} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {16272#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-08 22:25:54,732 INFO L280 TraceCheckUtils]: 13: Hoare triple {16272#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 main_~null~0.offset) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:54,733 INFO L280 TraceCheckUtils]: 14: Hoare triple {16273#(and (= 0 main_~null~0.offset) (= 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: L993 {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:54,734 INFO L280 TraceCheckUtils]: 15: Hoare triple {16273#(and (= 0 main_~null~0.offset) (= 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, 4 + ~list~0.offset, 4); srcloc: L993-1 {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:54,735 INFO L280 TraceCheckUtils]: 16: Hoare triple {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-08 22:25:54,735 INFO L280 TraceCheckUtils]: 17: Hoare triple {16273#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:54,736 INFO L280 TraceCheckUtils]: 18: Hoare triple {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:54,737 INFO L280 TraceCheckUtils]: 19: Hoare triple {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:54,737 INFO L280 TraceCheckUtils]: 20: Hoare triple {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= main_~list~0.base main_~end~0.base) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-08 22:25:54,739 INFO L280 TraceCheckUtils]: 21: Hoare triple {16274#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~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(12); srcloc: L1003 {16275#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= main_~list~0.offset main_~end~0.offset) (= 0 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))} is VALID [2020-07-08 22:25:54,740 INFO L280 TraceCheckUtils]: 22: Hoare triple {16275#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= main_~list~0.offset main_~end~0.offset) (= 0 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))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:25:54,741 INFO L280 TraceCheckUtils]: 23: Hoare triple {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 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: L1003-2 {16277#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:25:54,743 INFO L280 TraceCheckUtils]: 24: Hoare triple {16277#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= |main_#t~mem4.base| main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem4.base|) (= 1 (select |#valid| (select (select (store |#memory_$Pointer$.base| |main_#t~mem4.base| (store (select |#memory_$Pointer$.base| |main_#t~mem4.base|) (+ |main_#t~mem4.offset| 4) main_~end~0.base)) main_~end~0.base) main_~end~0.offset))))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:25:54,744 INFO L280 TraceCheckUtils]: 25: Hoare triple {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} havoc #t~mem4.base, #t~mem4.offset; {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} is VALID [2020-07-08 22:25:54,745 INFO L280 TraceCheckUtils]: 26: Hoare triple {16276#(and (= main_~list~0.offset main_~end~0.offset) (= 0 main_~null~0.offset) (= 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) (= 1 (select |#valid| (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset))))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {16278#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= (select |#valid| |main_#t~mem5.base|) 1) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} is VALID [2020-07-08 22:25:54,746 INFO L280 TraceCheckUtils]: 27: Hoare triple {16278#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= |main_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| main_~list~0.base) main_~list~0.offset)) (= (select |#valid| |main_#t~mem5.base|) 1) (= |main_#t~mem5.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset)))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,747 INFO L280 TraceCheckUtils]: 28: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} havoc #t~mem5.base, #t~mem5.offset; {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,748 INFO L280 TraceCheckUtils]: 29: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,749 INFO L280 TraceCheckUtils]: 30: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,750 INFO L280 TraceCheckUtils]: 31: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} assume !(0 != #t~nondet6); {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,751 INFO L280 TraceCheckUtils]: 32: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} havoc #t~nondet6; {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,753 INFO L280 TraceCheckUtils]: 33: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} SUMMARY for call write~int(~unnamed1~0~RED, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1014 {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} is VALID [2020-07-08 22:25:54,755 INFO L280 TraceCheckUtils]: 34: Hoare triple {16279#(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) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~end~0.base)) (= main_~end~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)))} SUMMARY for call #t~malloc7.base, #t~malloc7.offset := #Ultimate.allocOnHeap(12); srcloc: L1014-1 {16280#(and (= (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~malloc7.offset|)) main_~list~0.base) main_~list~0.offset) main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= (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~malloc7.base|)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= |main_#t~malloc7.base| main_~end~0.base)) (= 0 |main_#t~malloc7.offset|))} is VALID [2020-07-08 22:25:54,756 INFO L280 TraceCheckUtils]: 35: Hoare triple {16280#(and (= (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~malloc7.offset|)) main_~list~0.base) main_~list~0.offset) main_~end~0.offset) (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (= (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~malloc7.base|)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (not (= |main_#t~malloc7.base| main_~end~0.base)) (= 0 |main_#t~malloc7.offset|))} SUMMARY for call write~$Pointer$(#t~malloc7.base, #t~malloc7.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1015 {16281#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~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 [2020-07-08 22:25:54,758 INFO L280 TraceCheckUtils]: 36: Hoare triple {16281#(and (= 0 main_~null~0.offset) (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~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 #t~mem8.base, #t~mem8.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1015-1 {16282#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (or (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)) (and (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= 0 main_~list~0.offset) (= main_~end~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem8.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem8.base|))) (not (= |main_#t~mem8.base| main_~end~0.base)))} is VALID [2020-07-08 22:25:54,759 INFO L280 TraceCheckUtils]: 37: Hoare triple {16282#(and (= 0 main_~null~0.offset) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)) (or (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base)) (and (= (select (select (store |#memory_$Pointer$.base| |main_#t~mem8.base| (store (select |#memory_$Pointer$.base| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.base)) main_~list~0.base) main_~list~0.offset) main_~end~0.base) (= 0 main_~list~0.offset) (= main_~end~0.offset (select (select (store |#memory_$Pointer$.offset| |main_#t~mem8.base| (store (select |#memory_$Pointer$.offset| |main_#t~mem8.base|) (+ |main_#t~mem8.offset| 4) main_~end~0.offset)) main_~list~0.base) main_~list~0.offset)) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem8.base|))) (not (= |main_#t~mem8.base| main_~end~0.base)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem8.base, 4 + #t~mem8.offset, 4); srcloc: L1016 {16283#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) 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))) (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 22:25:54,760 INFO L280 TraceCheckUtils]: 38: Hoare triple {16283#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) 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))) (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} havoc #t~mem8.base, #t~mem8.offset; {16283#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) 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))) (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} is VALID [2020-07-08 22:25:54,761 INFO L280 TraceCheckUtils]: 39: Hoare triple {16283#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) 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))) (and (= 0 main_~list~0.offset) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~list~0.base))) (= 0 (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset)))} SUMMARY for call #t~mem9.base, #t~mem9.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1017 {16284#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset))) (= |main_#t~mem9.base| (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)))) (and (= 0 main_~list~0.offset) (= |main_#t~mem9.base| main_~list~0.base))) (= 0 |main_#t~mem9.offset|))} is VALID [2020-07-08 22:25:54,762 INFO L280 TraceCheckUtils]: 40: Hoare triple {16284#(and (= 0 main_~null~0.offset) (or (and (= 0 main_~list~0.offset) (not (= |main_#t~mem9.base| (select (select |#memory_$Pointer$.base| main_~list~0.base) main_~list~0.offset))) (= |main_#t~mem9.base| (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)))) (and (= 0 main_~list~0.offset) (= |main_#t~mem9.base| main_~list~0.base))) (= 0 |main_#t~mem9.offset|))} ~end~0.base, ~end~0.offset := #t~mem9.base, #t~mem9.offset; {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,763 INFO L280 TraceCheckUtils]: 41: Hoare triple {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} havoc #t~mem9.base, #t~mem9.offset; {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,765 INFO L280 TraceCheckUtils]: 42: Hoare triple {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1018 {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,767 INFO L280 TraceCheckUtils]: 43: Hoare triple {16285#(and (or (and (= main_~end~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)) (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)) (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))) (= 0 main_~null~0.offset) (not (= main_~list~0.base main_~end~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))) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1018-1 {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,768 INFO L280 TraceCheckUtils]: 44: Hoare triple {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} SUMMARY for call #t~mem10 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1021-6 {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,768 INFO L280 TraceCheckUtils]: 45: Hoare triple {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} assume !!(~unnamed1~0~BLACK == #t~mem10); {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,769 INFO L280 TraceCheckUtils]: 46: Hoare triple {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} havoc #t~mem10; {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,770 INFO L280 TraceCheckUtils]: 47: Hoare triple {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} goto; {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,771 INFO L280 TraceCheckUtils]: 48: Hoare triple {16286#(and (or (and (= 0 main_~null~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_~end~0.base)) (and (= main_~list~0.offset main_~end~0.offset) (= main_~list~0.base main_~end~0.base))) (= 0 main_~end~0.offset))} SUMMARY for call #t~mem11.base, #t~mem11.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1022-6 {16287#(and (or (and (= main_~list~0.offset main_~end~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.base|) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))) (= 0 main_~end~0.offset))} is VALID [2020-07-08 22:25:54,772 INFO L280 TraceCheckUtils]: 49: Hoare triple {16287#(and (or (and (= main_~list~0.offset main_~end~0.offset) (= (select (select |#memory_$Pointer$.offset| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.offset|) (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) |main_#t~mem11.base|) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))) (= 0 main_~end~0.offset))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} is VALID [2020-07-08 22:25:54,773 INFO L280 TraceCheckUtils]: 50: Hoare triple {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} havoc #t~mem11.base, #t~mem11.offset; {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} is VALID [2020-07-08 22:25:54,774 INFO L280 TraceCheckUtils]: 51: Hoare triple {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} goto; {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} is VALID [2020-07-08 22:25:54,784 INFO L280 TraceCheckUtils]: 52: Hoare triple {16288#(and (= 0 main_~end~0.offset) (or (and (= main_~list~0.offset main_~end~0.offset) (= (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) (= main_~list~0.base main_~end~0.base)) (and (= 0 main_~null~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_~end~0.base))))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,785 INFO L280 TraceCheckUtils]: 53: Hoare triple {16289#(or (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)) (not (= (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)))} goto; {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,786 INFO L280 TraceCheckUtils]: 54: Hoare triple {16289#(or (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)) (not (= (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; {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,786 INFO L280 TraceCheckUtils]: 55: Hoare triple {16289#(or (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)) (not (= (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); {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,787 INFO L280 TraceCheckUtils]: 56: Hoare triple {16289#(or (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)) (not (= (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; {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,787 INFO L280 TraceCheckUtils]: 57: Hoare triple {16289#(or (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)) (not (= (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; {16289#(or (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)) (not (= (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 [2020-07-08 22:25:54,788 INFO L280 TraceCheckUtils]: 58: Hoare triple {16289#(or (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)) (not (= (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; {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,789 INFO L280 TraceCheckUtils]: 59: Hoare triple {16290#(or (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)) (not (= (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)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,789 INFO L280 TraceCheckUtils]: 60: Hoare triple {16290#(or (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)) (not (= (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)))} goto; {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,789 INFO L280 TraceCheckUtils]: 61: Hoare triple {16290#(or (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)) (not (= (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)))} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,790 INFO L280 TraceCheckUtils]: 62: Hoare triple {16290#(or (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)) (not (= (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)))} assume !!(~unnamed1~0~BLACK == #t~mem12); {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,791 INFO L280 TraceCheckUtils]: 63: Hoare triple {16290#(or (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)) (not (= (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)))} havoc #t~mem12; {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,791 INFO L280 TraceCheckUtils]: 64: Hoare triple {16290#(or (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)) (not (= (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)))} goto; {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,792 INFO L280 TraceCheckUtils]: 65: Hoare triple {16290#(or (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)) (not (= (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)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,792 INFO L280 TraceCheckUtils]: 66: Hoare triple {16290#(or (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)) (not (= (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)))} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,793 INFO L280 TraceCheckUtils]: 67: Hoare triple {16290#(or (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)) (not (= (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)))} assume !(~unnamed1~0~RED == #t~mem13); {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,793 INFO L280 TraceCheckUtils]: 68: Hoare triple {16290#(or (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)) (not (= (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)))} havoc #t~mem13; {16290#(or (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)) (not (= (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)))} is VALID [2020-07-08 22:25:54,794 INFO L280 TraceCheckUtils]: 69: Hoare triple {16290#(or (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)) (not (= (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)))} SUMMARY for call #t~mem16.base, #t~mem16.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1034-4 {16291#(or (and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.base)))} is VALID [2020-07-08 22:25:54,795 INFO L280 TraceCheckUtils]: 70: Hoare triple {16291#(or (and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base)) (not (= (select (select |#memory_$Pointer$.base| |main_#t~mem16.base|) |main_#t~mem16.offset|) main_~null~0.base)))} ~end~0.base, ~end~0.offset := #t~mem16.base, #t~mem16.offset; {16292#(or (and (= main_~end~0.offset main_~null~0.offset) (= 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)))} is VALID [2020-07-08 22:25:54,795 INFO L280 TraceCheckUtils]: 71: Hoare triple {16292#(or (and (= main_~end~0.offset main_~null~0.offset) (= 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)))} havoc #t~mem16.base, #t~mem16.offset; {16292#(or (and (= main_~end~0.offset main_~null~0.offset) (= 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)))} is VALID [2020-07-08 22:25:54,796 INFO L280 TraceCheckUtils]: 72: Hoare triple {16292#(or (and (= main_~end~0.offset main_~null~0.offset) (= 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)))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:54,797 INFO L280 TraceCheckUtils]: 73: Hoare triple {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:54,797 INFO L280 TraceCheckUtils]: 74: Hoare triple {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} assume ~unnamed1~0~RED == #t~mem13; {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:54,798 INFO L280 TraceCheckUtils]: 75: Hoare triple {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} havoc #t~mem13; {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-08 22:25:54,798 INFO L280 TraceCheckUtils]: 76: Hoare triple {16293#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {16294#(not (= |main_#t~mem14.base| main_~null~0.base))} is VALID [2020-07-08 22:25:54,799 INFO L280 TraceCheckUtils]: 77: Hoare triple {16294#(not (= |main_#t~mem14.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {16295#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:54,799 INFO L280 TraceCheckUtils]: 78: Hoare triple {16295#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem14.base, #t~mem14.offset; {16295#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-08 22:25:54,799 INFO L280 TraceCheckUtils]: 79: Hoare triple {16295#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {16264#false} is VALID [2020-07-08 22:25:54,800 INFO L280 TraceCheckUtils]: 80: Hoare triple {16264#false} assume !false; {16264#false} is VALID [2020-07-08 22:25:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:25:54,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611318930] [2020-07-08 22:25:54,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:25:54,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-07-08 22:25:54,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937688315] [2020-07-08 22:25:54,833 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 81 [2020-07-08 22:25:54,833 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:25:54,834 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 29 states. [2020-07-08 22:25:54,959 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:25:54,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-07-08 22:25:54,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:25:54,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-07-08 22:25:54,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2020-07-08 22:25:54,961 INFO L87 Difference]: Start difference. First operand 227 states and 236 transitions. Second operand 29 states. [2020-07-08 22:25:58,402 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2020-07-08 22:25:58,947 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54 [2020-07-08 22:25:59,228 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-07-08 22:25:59,757 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2020-07-08 22:26:00,968 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2020-07-08 22:26:07,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:26:07,570 INFO L93 Difference]: Finished difference Result 299 states and 310 transitions. [2020-07-08 22:26:07,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-07-08 22:26:07,570 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 81 [2020-07-08 22:26:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:26:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-08 22:26:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 234 transitions. [2020-07-08 22:26:07,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-07-08 22:26:07,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 234 transitions. [2020-07-08 22:26:07,574 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 41 states and 234 transitions. [2020-07-08 22:26:08,028 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 234 edges. 234 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:26:08,034 INFO L225 Difference]: With dead ends: 299 [2020-07-08 22:26:08,034 INFO L226 Difference]: Without dead ends: 297 [2020-07-08 22:26:08,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 868 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=610, Invalid=3680, Unknown=0, NotChecked=0, Total=4290 [2020-07-08 22:26:08,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-07-08 22:26:10,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 251. [2020-07-08 22:26:10,100 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:26:10,101 INFO L82 GeneralOperation]: Start isEquivalent. First operand 297 states. Second operand 251 states. [2020-07-08 22:26:10,101 INFO L74 IsIncluded]: Start isIncluded. First operand 297 states. Second operand 251 states. [2020-07-08 22:26:10,101 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 251 states. [2020-07-08 22:26:10,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:26:10,108 INFO L93 Difference]: Finished difference Result 297 states and 308 transitions. [2020-07-08 22:26:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 308 transitions. [2020-07-08 22:26:10,109 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:26:10,109 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:26:10,109 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand 297 states. [2020-07-08 22:26:10,109 INFO L87 Difference]: Start difference. First operand 251 states. Second operand 297 states. [2020-07-08 22:26:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:26:10,116 INFO L93 Difference]: Finished difference Result 297 states and 308 transitions. [2020-07-08 22:26:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 308 transitions. [2020-07-08 22:26:10,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:26:10,117 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:26:10,117 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:26:10,118 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:26:10,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-07-08 22:26:10,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 261 transitions. [2020-07-08 22:26:10,123 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 261 transitions. Word has length 81 [2020-07-08 22:26:10,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:26:10,123 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 261 transitions. [2020-07-08 22:26:10,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-07-08 22:26:10,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 251 states and 261 transitions. [2020-07-08 22:26:11,013 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 261 edges. 261 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:26:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-08 22:26:11,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-07-08 22:26:11,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:26:11,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:26:11,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-08 22:26:11,016 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:26:11,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:26:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash 682951368, now seen corresponding path program 1 times [2020-07-08 22:26:11,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:26:11,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289258643] [2020-07-08 22:26:11,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:26:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:26:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:26:11,180 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 22:26:11,181 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 22:26:11,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-08 22:26:11,283 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2020-07-08 22:26:11,283 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:26:11,283 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L987 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L-1-1 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L988 has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 22:26:11,284 WARN L170 areAnnotationChecker]: L988-1 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L989 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L990 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L992 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L993 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L993-1 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L994 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L995 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L1023-4 has no Hoare annotation [2020-07-08 22:26:11,285 WARN L170 areAnnotationChecker]: L1023-4 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1000-5 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1000-1 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1027 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1000-2 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1000-4 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1030-4 has no Hoare annotation [2020-07-08 22:26:11,286 WARN L170 areAnnotationChecker]: L1003 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1031-6 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1031-6 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1030-1 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1030-3 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1030-3 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1003-1 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1031 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1031 has no Hoare annotation [2020-07-08 22:26:11,287 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1032-1 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1003-2 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1031-1 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1031-4 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1047-4 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1034 has no Hoare annotation [2020-07-08 22:26:11,288 WARN L170 areAnnotationChecker]: L1004 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1031-2 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1031-2 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1031-5 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1031-5 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1045-1 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1047 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1034-1 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: L1004-1 has no Hoare annotation [2020-07-08 22:26:11,289 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1047-1 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1047-1 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1034-2 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1034-3 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1005 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1047-2 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1047-3 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1036 has no Hoare annotation [2020-07-08 22:26:11,290 WARN L170 areAnnotationChecker]: L1034-4 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1005-1 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1049 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1056 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1036-1 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1041 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1005-2 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1049-1 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1056-1 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1036-2 has no Hoare annotation [2020-07-08 22:26:11,291 WARN L170 areAnnotationChecker]: L1041-1 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1006 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1049-2 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1056-2 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1037-4 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1037-4 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1037-4 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1006-1 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1050 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1057 has no Hoare annotation [2020-07-08 22:26:11,292 WARN L170 areAnnotationChecker]: L1038-6 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1038-6 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1037-1 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1037-1 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1037-3 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1037-3 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1008 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1050-1 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1057-1 has no Hoare annotation [2020-07-08 22:26:11,293 WARN L170 areAnnotationChecker]: L1038 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1038 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1008-1 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1008-2 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1051 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1038-1 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1038-4 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1010 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1014 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1051-1 has no Hoare annotation [2020-07-08 22:26:11,294 WARN L170 areAnnotationChecker]: L1038-2 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1038-2 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1038-5 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1038-5 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021-6 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021-6 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1014-1 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1052 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1022-6 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1022-6 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1015 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021-1 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1021-4 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-08 22:26:11,295 WARN L170 areAnnotationChecker]: L1022 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023-3 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023-3 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023-3 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1015-1 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1021-2 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1021-5 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1021-5 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1022-1 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1022-4 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023-2 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1023-2 has no Hoare annotation [2020-07-08 22:26:11,296 WARN L170 areAnnotationChecker]: L1016 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1022-2 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1022-2 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1022-5 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1022-5 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1016-1 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1017 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1017-1 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1017-2 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1018 has no Hoare annotation [2020-07-08 22:26:11,297 WARN L170 areAnnotationChecker]: L1018-1 has no Hoare annotation [2020-07-08 22:26:11,297 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. [2020-07-08 22:26:11,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:26:11 BoogieIcfgContainer [2020-07-08 22:26:11,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:26:11,303 INFO L168 Benchmark]: Toolchain (without parser) took 107901.75 ms. Allocated memory was 142.6 MB in the beginning and 653.8 MB in the end (delta: 511.2 MB). Free memory was 100.9 MB in the beginning and 600.6 MB in the end (delta: -499.8 MB). Peak memory consumption was 532.5 MB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,304 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 142.6 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.96 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 100.7 MB in the beginning and 169.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,305 INFO L168 Benchmark]: Boogie Preprocessor took 94.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 165.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,305 INFO L168 Benchmark]: RCFGBuilder took 930.50 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 207.0 MB in the end (delta: -41.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,308 INFO L168 Benchmark]: TraceAbstraction took 106109.75 ms. Allocated memory was 236.5 MB in the beginning and 653.8 MB in the end (delta: 417.3 MB). Free memory was 205.6 MB in the beginning and 600.6 MB in the end (delta: -395.1 MB). Peak memory consumption was 543.4 MB. Max. memory is 7.1 GB. [2020-07-08 22:26:11,310 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 0.26 ms. Allocated memory is still 142.6 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.96 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 100.7 MB in the beginning and 169.8 MB in the end (delta: -69.1 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.58 ms. Allocated memory is still 203.4 MB. Free memory was 169.8 MB in the beginning and 165.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 930.50 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 207.0 MB in the end (delta: -41.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 106109.75 ms. Allocated memory was 236.5 MB in the beginning and 653.8 MB in the end (delta: 417.3 MB). Free memory was 205.6 MB in the beginning and 600.6 MB in the end (delta: -395.1 MB). Peak memory consumption was 543.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1038]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L987] struct TSLL* null = malloc(sizeof(struct TSLL)); VAL [malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L988] null->next = ((void*)0) VAL [malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L989] null->prev = ((void*)0) VAL [malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L990] null->colour = BLACK VAL [malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L992] struct TSLL* list = malloc(sizeof(struct TSLL)); VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L993] list->next = null VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L994] list->prev = null VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L995] list->colour = BLACK VAL [list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L997] struct TSLL* end = list; VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1000] COND TRUE __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1003] end->next = malloc(sizeof(struct TSLL)) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1004] EXPR end->next VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1004] end->next->prev = end VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1005] EXPR end->next VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1005] end = end->next VAL [end={-3:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1006] end->next = null VAL [end={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1008] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, end={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1014] end->colour = RED VAL [end={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1015] end->next = malloc(sizeof(struct TSLL)) VAL [end={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1016] EXPR end->next VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1016] end->next->prev = end VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1017] EXPR end->next VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1017] end = end->next VAL [end={-4:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1018] end->next = null VAL [end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1019] end->colour = BLACK VAL [end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1021] EXPR end->colour VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1021] COND FALSE !(!(BLACK == end->colour)) VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1022] EXPR end->next VAL [end={-4:0}, end->next={-1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1022] COND FALSE !(!(null == end->next)) VAL [end={-4:0}, end->next={-1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1023] COND FALSE !(!(null != end)) VAL [end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1000] COND FALSE !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1026] end = null VAL [end={-1:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1027] end = list VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1030] COND FALSE !(!(null != end)) VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1031] EXPR end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1031] COND FALSE !(!(BLACK == end->colour)) VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1032] COND TRUE null != end VAL [end={-2:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1034] EXPR end->colour VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1034] COND FALSE !(RED == end->colour) VAL [end={-2:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1041] EXPR end->next VAL [end={-2:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1041] end = end->next VAL [end={-3:0}, end->next={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1032] COND TRUE null != end VAL [end={-3:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1034] EXPR end->colour VAL [end={-3:0}, end->colour=0, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1034] COND TRUE RED == end->colour VAL [end={-3:0}, end->colour=0, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1036] EXPR end->next VAL [end={-3:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1036] end = end->next VAL [end={-4:0}, end->next={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1037] COND FALSE !(!(null != end)) VAL [end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1038] EXPR end->colour VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1038] COND TRUE !(BLACK != end->colour) VAL [end={-4:0}, end->colour=1, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] [L1038] __VERIFIER_error() VAL [end={-4:0}, list={-2:0}, malloc(sizeof(struct TSLL))={-4:0}, malloc(sizeof(struct TSLL))={-2:0}, malloc(sizeof(struct TSLL))={-3:0}, malloc(sizeof(struct TSLL))={-1:0}, null={-1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 123 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 105.9s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 70.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1211 SDtfs, 7010 SDslu, 6868 SDs, 0 SdLazy, 8317 SolverSat, 1038 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 475 GetRequests, 55 SyntacticMatches, 18 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2789 ImplicationChecksByTransitivity, 18.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 383 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 924 NumberOfCodeBlocks, 924 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 823 ConstructedInterpolants, 0 QuantifiedInterpolants, 714077 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 10/87 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...