/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 -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 16:25:27,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 16:25:27,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 16:25:27,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 16:25:27,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 16:25:27,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 16:25:27,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 16:25:27,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 16:25:27,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 16:25:27,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 16:25:27,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 16:25:27,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 16:25:27,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 16:25:27,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 16:25:27,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 16:25:27,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 16:25:27,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 16:25:27,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 16:25:27,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 16:25:27,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 16:25:27,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 16:25:27,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 16:25:27,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 16:25:27,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 16:25:27,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-08 16:25:27,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-08 16:25:27,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-08 16:25:27,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-08 16:25:27,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-08 16:25:27,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-08 16:25:27,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 16:25:27,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 16:25:27,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 16:25:27,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 16:25:27,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 16:25:27,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 16:25:27,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 16:25:27,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 16:25:27,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 16:25:27,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 16:25:27,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 16:25:27,164 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 16:25:27,188 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 16:25:27,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 16:25:27,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 16:25:27,193 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 16:25:27,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 16:25:27,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 16:25:27,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 16:25:27,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 16:25:27,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 16:25:27,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 16:25:27,194 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 16:25:27,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 16:25:27,195 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 16:25:27,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 16:25:27,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 16:25:27,195 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 16:25:27,195 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 16:25:27,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 16:25:27,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 16:25:27,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 16:25:27,196 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 16:25:27,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 16:25:27,197 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 16:25:27,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 16:25:27,505 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 16:25:27,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 16:25:27,511 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 16:25:27,511 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 16:25:27,512 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-08 16:25:27,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d00b5760/493be7e10b45462fa065b8c8cef1433b/FLAG8c0a9dd6d [2020-07-08 16:25:28,193 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 16:25:28,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-08 16:25:28,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d00b5760/493be7e10b45462fa065b8c8cef1433b/FLAG8c0a9dd6d [2020-07-08 16:25:28,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d00b5760/493be7e10b45462fa065b8c8cef1433b [2020-07-08 16:25:28,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 16:25:28,450 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 16:25:28,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:28,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 16:25:28,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 16:25:28,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:28" (1/1) ... [2020-07-08 16:25:28,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c045c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:28, skipping insertion in model container [2020-07-08 16:25:28,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 04:25:28" (1/1) ... [2020-07-08 16:25:28,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 16:25:28,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 16:25:29,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:29,051 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 16:25:29,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 16:25:29,160 INFO L208 MainTranslator]: Completed translation [2020-07-08 16:25:29,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29 WrapperNode [2020-07-08 16:25:29,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 16:25:29,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 16:25:29,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 16:25:29,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 16:25:29,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (1/1) ... [2020-07-08 16:25:29,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 16:25:29,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 16:25:29,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 16:25:29,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 16:25:29,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (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 16:25:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 16:25:29,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 16:25:29,342 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 16:25:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-08 16:25:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-08 16:25:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-08 16:25:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-08 16:25:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-08 16:25:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-08 16:25:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-08 16:25:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-08 16:25:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-08 16:25:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-08 16:25:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-08 16:25:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-08 16:25:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-08 16:25:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-08 16:25:29,346 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-08 16:25:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-08 16:25:29,347 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-08 16:25:29,348 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-08 16:25:29,349 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-08 16:25:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-08 16:25:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-08 16:25:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-08 16:25:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-08 16:25:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-08 16:25:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-08 16:25:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-08 16:25:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-08 16:25:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-08 16:25:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-08 16:25:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-08 16:25:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-08 16:25:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-08 16:25:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-08 16:25:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-08 16:25:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-08 16:25:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-08 16:25:29,359 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-08 16:25:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-08 16:25:29,360 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-08 16:25:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-08 16:25:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-08 16:25:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-08 16:25:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-08 16:25:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-08 16:25:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-08 16:25:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-08 16:25:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-08 16:25:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-08 16:25:29,365 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-08 16:25:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-08 16:25:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-08 16:25:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-08 16:25:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-08 16:25:29,366 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-08 16:25:29,367 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-08 16:25:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-08 16:25:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-08 16:25:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-08 16:25:29,370 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-08 16:25:29,371 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-08 16:25:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-08 16:25:29,372 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-08 16:25:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-08 16:25:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-08 16:25:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-08 16:25:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-08 16:25:29,373 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-08 16:25:29,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 16:25:29,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 16:25:30,269 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 16:25:30,269 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-07-08 16:25:30,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:30 BoogieIcfgContainer [2020-07-08 16:25:30,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 16:25:30,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 16:25:30,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 16:25:30,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 16:25:30,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 04:25:28" (1/3) ... [2020-07-08 16:25:30,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7f62c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:30, skipping insertion in model container [2020-07-08 16:25:30,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 04:25:29" (2/3) ... [2020-07-08 16:25:30,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7f62c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 04:25:30, skipping insertion in model container [2020-07-08 16:25:30,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 04:25:30" (3/3) ... [2020-07-08 16:25:30,285 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-07-08 16:25:30,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 16:25:30,307 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-08 16:25:30,338 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-08 16:25:30,361 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 16:25:30,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 16:25:30,362 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 16:25:30,362 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 16:25:30,362 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 16:25:30,362 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 16:25:30,362 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 16:25:30,363 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 16:25:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-07-08 16:25:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-08 16:25:30,395 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:30,396 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 16:25:30,397 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 16:25:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:30,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-07-08 16:25:30,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:30,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [747300975] [2020-07-08 16:25:30,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:30,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:30,695 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 16:25:30,696 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-08 16:25:30,696 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-08 16:25:30,697 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-08 16:25:30,697 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-08 16:25:30,701 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 16:25:30,701 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 16:25:30,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-08 16:25:30,702 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-08 16:25:30,702 INFO L280 TraceCheckUtils]: 4: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-08 16:25:30,703 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-08 16:25:30,703 INFO L263 TraceCheckUtils]: 6: Hoare triple {126#true} call #t~ret21 := main(); {126#true} is VALID [2020-07-08 16:25:30,704 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 16:25:30,704 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 16:25:30,704 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 16:25:30,705 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 16:25:30,705 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 16:25:30,705 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 16:25:30,706 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 16:25:30,706 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 16:25:30,707 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 16:25:30,707 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 16:25:30,707 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 16:25:30,709 INFO L280 TraceCheckUtils]: 18: Hoare triple {126#true} assume !true; {127#false} is VALID [2020-07-08 16:25:30,709 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 16:25:30,710 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 16:25:30,710 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 16:25:30,711 INFO L280 TraceCheckUtils]: 22: Hoare triple {127#false} assume !false; {127#false} is VALID [2020-07-08 16:25:30,713 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 16:25:30,714 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:30,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [747300975] [2020-07-08 16:25:30,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:30,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-08 16:25:30,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628368556] [2020-07-08 16:25:30,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-08 16:25:30,730 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:30,734 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-08 16:25:30,779 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 16:25:30,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-08 16:25:30,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:30,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-08 16:25:30,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-08 16:25:30,793 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-07-08 16:25:31,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:31,547 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-07-08 16:25:31,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-08 16:25:31,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-08 16:25:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:31,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:25:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 16:25:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-08 16:25:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-08 16:25:31,578 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-08 16:25:32,044 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 16:25:32,063 INFO L225 Difference]: With dead ends: 228 [2020-07-08 16:25:32,063 INFO L226 Difference]: Without dead ends: 100 [2020-07-08 16:25:32,069 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 16:25:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-08 16:25:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-08 16:25:32,193 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:32,194 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 100 states. [2020-07-08 16:25:32,195 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-08 16:25:32,195 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-08 16:25:32,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,204 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-08 16:25:32,204 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 16:25:32,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:32,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:32,206 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-08 16:25:32,206 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-08 16:25:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:32,214 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-08 16:25:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 16:25:32,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:32,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:32,216 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:32,217 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-08 16:25:32,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-07-08 16:25:32,225 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-07-08 16:25:32,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:32,226 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-07-08 16:25:32,226 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-08 16:25:32,226 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 103 transitions. [2020-07-08 16:25:32,369 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 16:25:32,370 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-08 16:25:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 16:25:32,371 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:32,371 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 16:25:32,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 16:25:32,372 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 16:25:32,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:32,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-07-08 16:25:32,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:32,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797075153] [2020-07-08 16:25:32,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:32,602 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 16:25:32,603 INFO L280 TraceCheckUtils]: 1: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-08 16:25:32,604 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-08 16:25:32,604 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-08 16:25:32,604 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-08 16:25:32,606 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 16:25:32,607 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 16:25:32,607 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-08 16:25:32,608 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-08 16:25:32,608 INFO L280 TraceCheckUtils]: 4: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-08 16:25:32,608 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-08 16:25:32,609 INFO L263 TraceCheckUtils]: 6: Hoare triple {992#true} call #t~ret21 := main(); {992#true} is VALID [2020-07-08 16:25:32,611 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 16:25:32,612 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 16:25:32,613 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 16:25:32,614 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 16:25:32,616 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 16:25:32,617 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 16:25:32,623 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 16:25:32,624 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 16:25:32,625 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 16:25:32,627 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 16:25:32,628 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 16:25:32,637 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 16:25:32,638 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 16:25:32,639 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 16:25:32,639 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 16:25:32,642 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 16:25:32,643 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 16:25:32,644 INFO L280 TraceCheckUtils]: 24: Hoare triple {993#false} assume !false; {993#false} is VALID [2020-07-08 16:25:32,646 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 16:25:32,647 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:32,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797075153] [2020-07-08 16:25:32,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:32,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 16:25:32,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607519682] [2020-07-08 16:25:32,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-08 16:25:32,649 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:32,649 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 16:25:32,689 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 16:25:32,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 16:25:32,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:32,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 16:25:32,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-08 16:25:32,691 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-07-08 16:25:34,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:34,200 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-07-08 16:25:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-08 16:25:34,201 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-08 16:25:34,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:34,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-08 16:25:34,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 16:25:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-08 16:25:34,208 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 126 transitions. [2020-07-08 16:25:34,428 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 16:25:34,434 INFO L225 Difference]: With dead ends: 121 [2020-07-08 16:25:34,434 INFO L226 Difference]: Without dead ends: 119 [2020-07-08 16:25:34,436 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 16:25:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-08 16:25:34,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-07-08 16:25:34,739 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:34,739 INFO L82 GeneralOperation]: Start isEquivalent. First operand 119 states. Second operand 98 states. [2020-07-08 16:25:34,739 INFO L74 IsIncluded]: Start isIncluded. First operand 119 states. Second operand 98 states. [2020-07-08 16:25:34,739 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 98 states. [2020-07-08 16:25:34,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:34,745 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-08 16:25:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-08 16:25:34,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:34,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:34,747 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 119 states. [2020-07-08 16:25:34,747 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 119 states. [2020-07-08 16:25:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:34,754 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-08 16:25:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-08 16:25:34,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:34,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:34,755 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:34,755 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:34,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-07-08 16:25:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-07-08 16:25:34,760 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-07-08 16:25:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:34,761 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-07-08 16:25:34,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 16:25:34,761 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 98 states and 101 transitions. [2020-07-08 16:25:34,919 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 16:25:34,919 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-07-08 16:25:34,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-08 16:25:34,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:34,921 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 16:25:34,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 16:25:34,921 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 16:25:34,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:34,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-07-08 16:25:34,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:34,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [192044237] [2020-07-08 16:25:34,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:35,340 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 16:25:35,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-08 16:25:35,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-08 16:25:35,341 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-08 16:25:35,341 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-08 16:25:35,349 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 16:25:35,349 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 16:25:35,349 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-08 16:25:35,350 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-08 16:25:35,350 INFO L280 TraceCheckUtils]: 4: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-08 16:25:35,351 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-08 16:25:35,351 INFO L263 TraceCheckUtils]: 6: Hoare triple {1691#true} call #t~ret21 := main(); {1691#true} is VALID [2020-07-08 16:25:35,352 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 16:25:35,353 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 16:25:35,354 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 16:25:35,355 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 16:25:35,356 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 16:25:35,357 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 16:25:35,358 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 16:25:35,359 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 16:25:35,360 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 16:25:35,362 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 16:25:35,363 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 16:25:35,364 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 16:25:35,365 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 16:25:35,367 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 16:25:35,368 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 16:25:35,369 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 16:25:35,370 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 16:25:35,372 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 16:25:35,373 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 16:25:35,374 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 16:25:35,374 INFO L280 TraceCheckUtils]: 27: Hoare triple {1692#false} havoc #t~mem12; {1692#false} is VALID [2020-07-08 16:25:35,374 INFO L280 TraceCheckUtils]: 28: Hoare triple {1692#false} assume !false; {1692#false} is VALID [2020-07-08 16:25:35,377 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 16:25:35,379 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:35,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [192044237] [2020-07-08 16:25:35,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:35,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 16:25:35,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082133229] [2020-07-08 16:25:35,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-08 16:25:35,381 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:35,381 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 16:25:35,434 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 16:25:35,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 16:25:35,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:35,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 16:25:35,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 16:25:35,436 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 11 states. [2020-07-08 16:25:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:38,115 INFO L93 Difference]: Finished difference Result 148 states and 154 transitions. [2020-07-08 16:25:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 16:25:38,116 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 29 [2020-07-08 16:25:38,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 16:25:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 154 transitions. [2020-07-08 16:25:38,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 16:25:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 154 transitions. [2020-07-08 16:25:38,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 154 transitions. [2020-07-08 16:25:38,356 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 16:25:38,360 INFO L225 Difference]: With dead ends: 148 [2020-07-08 16:25:38,361 INFO L226 Difference]: Without dead ends: 145 [2020-07-08 16:25:38,361 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 16:25:38,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-08 16:25:38,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 107. [2020-07-08 16:25:38,942 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:38,942 INFO L82 GeneralOperation]: Start isEquivalent. First operand 145 states. Second operand 107 states. [2020-07-08 16:25:38,943 INFO L74 IsIncluded]: Start isIncluded. First operand 145 states. Second operand 107 states. [2020-07-08 16:25:38,943 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 107 states. [2020-07-08 16:25:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:38,954 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2020-07-08 16:25:38,954 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2020-07-08 16:25:38,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:38,957 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:38,957 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 145 states. [2020-07-08 16:25:38,957 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 145 states. [2020-07-08 16:25:38,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:38,968 INFO L93 Difference]: Finished difference Result 145 states and 151 transitions. [2020-07-08 16:25:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2020-07-08 16:25:38,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:38,969 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:38,969 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:38,970 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-08 16:25:38,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-08 16:25:38,977 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-07-08 16:25:38,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:38,978 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-08 16:25:38,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 16:25:38,978 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-08 16:25:39,213 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 16:25:39,214 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 16:25:39,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-08 16:25:39,215 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:39,215 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 16:25:39,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 16:25:39,216 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 16:25:39,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:39,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-07-08 16:25:39,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:39,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283205220] [2020-07-08 16:25:39,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:39,416 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 16:25:39,417 INFO L280 TraceCheckUtils]: 1: Hoare triple {2527#true} #valid := #valid[0 := 0]; {2527#true} is VALID [2020-07-08 16:25:39,417 INFO L280 TraceCheckUtils]: 2: Hoare triple {2527#true} assume 0 < #StackHeapBarrier; {2527#true} is VALID [2020-07-08 16:25:39,417 INFO L280 TraceCheckUtils]: 3: Hoare triple {2527#true} assume true; {2527#true} is VALID [2020-07-08 16:25:39,418 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2527#true} {2527#true} #260#return; {2527#true} is VALID [2020-07-08 16:25:39,419 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 16:25:39,419 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 16:25:39,420 INFO L280 TraceCheckUtils]: 2: Hoare triple {2527#true} #valid := #valid[0 := 0]; {2527#true} is VALID [2020-07-08 16:25:39,420 INFO L280 TraceCheckUtils]: 3: Hoare triple {2527#true} assume 0 < #StackHeapBarrier; {2527#true} is VALID [2020-07-08 16:25:39,420 INFO L280 TraceCheckUtils]: 4: Hoare triple {2527#true} assume true; {2527#true} is VALID [2020-07-08 16:25:39,421 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2527#true} {2527#true} #260#return; {2527#true} is VALID [2020-07-08 16:25:39,421 INFO L263 TraceCheckUtils]: 6: Hoare triple {2527#true} call #t~ret21 := main(); {2527#true} is VALID [2020-07-08 16:25:39,421 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 16:25:39,421 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 16:25:39,422 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 16:25:39,422 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 16:25:39,422 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 16:25:39,423 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 16:25:39,423 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 16:25:39,423 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 16:25:39,423 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 16:25:39,424 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 16:25:39,424 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 16:25:39,424 INFO L280 TraceCheckUtils]: 18: Hoare triple {2527#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2527#true} is VALID [2020-07-08 16:25:39,425 INFO L280 TraceCheckUtils]: 19: Hoare triple {2527#true} assume !(0 != #t~nondet2); {2527#true} is VALID [2020-07-08 16:25:39,425 INFO L280 TraceCheckUtils]: 20: Hoare triple {2527#true} havoc #t~nondet2; {2527#true} is VALID [2020-07-08 16:25:39,425 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 16:25:39,425 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 16:25:39,426 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 16:25:39,426 INFO L280 TraceCheckUtils]: 24: Hoare triple {2527#true} goto; {2527#true} is VALID [2020-07-08 16:25:39,427 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 16:25:39,428 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 16:25:39,429 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 16:25:39,430 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 16:25:39,431 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 16:25:39,432 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 16:25:39,433 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 16:25:39,433 INFO L280 TraceCheckUtils]: 32: Hoare triple {2528#false} havoc #t~mem13; {2528#false} is VALID [2020-07-08 16:25:39,434 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 16:25:39,434 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 16:25:39,434 INFO L280 TraceCheckUtils]: 35: Hoare triple {2528#false} havoc #t~mem14.base, #t~mem14.offset; {2528#false} is VALID [2020-07-08 16:25:39,435 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 16:25:39,435 INFO L280 TraceCheckUtils]: 37: Hoare triple {2528#false} assume !false; {2528#false} is VALID [2020-07-08 16:25:39,437 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 16:25:39,438 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:39,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283205220] [2020-07-08 16:25:39,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:39,438 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 16:25:39,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192307460] [2020-07-08 16:25:39,439 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 16:25:39,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:39,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 16:25:39,487 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 16:25:39,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 16:25:39,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:39,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 16:25:39,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 16:25:39,489 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-07-08 16:25:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:40,937 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2020-07-08 16:25:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 16:25:40,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-08 16:25:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-08 16:25:40,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 16:25:40,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-08 16:25:40,949 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 141 transitions. [2020-07-08 16:25:41,131 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 16:25:41,134 INFO L225 Difference]: With dead ends: 140 [2020-07-08 16:25:41,135 INFO L226 Difference]: Without dead ends: 118 [2020-07-08 16:25:41,136 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 16:25:41,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-07-08 16:25:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2020-07-08 16:25:41,766 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:41,766 INFO L82 GeneralOperation]: Start isEquivalent. First operand 118 states. Second operand 110 states. [2020-07-08 16:25:41,767 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 110 states. [2020-07-08 16:25:41,767 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 110 states. [2020-07-08 16:25:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:41,772 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-08 16:25:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-08 16:25:41,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:41,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:41,774 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 118 states. [2020-07-08 16:25:41,774 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 118 states. [2020-07-08 16:25:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:41,780 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-08 16:25:41,780 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-08 16:25:41,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:41,781 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:41,781 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:41,781 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-08 16:25:41,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-07-08 16:25:41,786 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 38 [2020-07-08 16:25:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:41,788 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-07-08 16:25:41,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 16:25:41,789 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 114 transitions. [2020-07-08 16:25:42,032 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 16:25:42,032 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-07-08 16:25:42,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-08 16:25:42,034 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:42,034 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 16:25:42,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 16:25:42,035 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 16:25:42,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:42,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-07-08 16:25:42,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:42,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483341348] [2020-07-08 16:25:42,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:42,152 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 16:25:42,152 INFO L280 TraceCheckUtils]: 1: Hoare triple {3280#true} #valid := #valid[0 := 0]; {3280#true} is VALID [2020-07-08 16:25:42,152 INFO L280 TraceCheckUtils]: 2: Hoare triple {3280#true} assume 0 < #StackHeapBarrier; {3280#true} is VALID [2020-07-08 16:25:42,153 INFO L280 TraceCheckUtils]: 3: Hoare triple {3280#true} assume true; {3280#true} is VALID [2020-07-08 16:25:42,153 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3280#true} {3280#true} #260#return; {3280#true} is VALID [2020-07-08 16:25:42,154 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 16:25:42,155 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 16:25:42,155 INFO L280 TraceCheckUtils]: 2: Hoare triple {3280#true} #valid := #valid[0 := 0]; {3280#true} is VALID [2020-07-08 16:25:42,155 INFO L280 TraceCheckUtils]: 3: Hoare triple {3280#true} assume 0 < #StackHeapBarrier; {3280#true} is VALID [2020-07-08 16:25:42,155 INFO L280 TraceCheckUtils]: 4: Hoare triple {3280#true} assume true; {3280#true} is VALID [2020-07-08 16:25:42,155 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3280#true} {3280#true} #260#return; {3280#true} is VALID [2020-07-08 16:25:42,156 INFO L263 TraceCheckUtils]: 6: Hoare triple {3280#true} call #t~ret21 := main(); {3280#true} is VALID [2020-07-08 16:25:42,156 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 16:25:42,156 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 16:25:42,156 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 16:25:42,157 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 16:25:42,157 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 16:25:42,157 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 16:25:42,157 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 16:25:42,158 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 16:25:42,158 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 16:25:42,158 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 16:25:42,159 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 16:25:42,159 INFO L280 TraceCheckUtils]: 18: Hoare triple {3280#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3280#true} is VALID [2020-07-08 16:25:42,159 INFO L280 TraceCheckUtils]: 19: Hoare triple {3280#true} assume !!(0 != #t~nondet2); {3280#true} is VALID [2020-07-08 16:25:42,159 INFO L280 TraceCheckUtils]: 20: Hoare triple {3280#true} havoc #t~nondet2; {3280#true} is VALID [2020-07-08 16:25:42,160 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 16:25:42,160 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 16:25:42,160 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 16:25:42,160 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 16:25:42,161 INFO L280 TraceCheckUtils]: 25: Hoare triple {3280#true} havoc #t~mem4.base, #t~mem4.offset; {3280#true} is VALID [2020-07-08 16:25:42,161 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 16:25:42,161 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 16:25:42,162 INFO L280 TraceCheckUtils]: 28: Hoare triple {3280#true} havoc #t~mem5.base, #t~mem5.offset; {3280#true} is VALID [2020-07-08 16:25:42,162 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 16:25:42,162 INFO L280 TraceCheckUtils]: 30: Hoare triple {3280#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {3280#true} is VALID [2020-07-08 16:25:42,162 INFO L280 TraceCheckUtils]: 31: Hoare triple {3280#true} assume 0 != #t~nondet6; {3280#true} is VALID [2020-07-08 16:25:42,163 INFO L280 TraceCheckUtils]: 32: Hoare triple {3280#true} havoc #t~nondet6; {3280#true} is VALID [2020-07-08 16:25:42,164 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 16:25:42,165 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 16:25:42,167 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 16:25:42,167 INFO L280 TraceCheckUtils]: 36: Hoare triple {3281#false} havoc #t~mem10; {3281#false} is VALID [2020-07-08 16:25:42,167 INFO L280 TraceCheckUtils]: 37: Hoare triple {3281#false} assume !false; {3281#false} is VALID [2020-07-08 16:25:42,169 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 16:25:42,169 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:42,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483341348] [2020-07-08 16:25:42,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:42,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 16:25:42,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782746712] [2020-07-08 16:25:42,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-08 16:25:42,171 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:42,171 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 16:25:42,222 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 16:25:42,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 16:25:42,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:42,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 16:25:42,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:25:42,224 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 5 states. [2020-07-08 16:25:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:43,439 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2020-07-08 16:25:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:25:43,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-08 16:25:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:43,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-08 16:25:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:43,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-08 16:25:43,446 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 111 transitions. [2020-07-08 16:25:43,597 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 16:25:43,599 INFO L225 Difference]: With dead ends: 115 [2020-07-08 16:25:43,599 INFO L226 Difference]: Without dead ends: 112 [2020-07-08 16:25:43,600 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 16:25:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-08 16:25:44,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-07-08 16:25:44,134 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:44,134 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 107 states. [2020-07-08 16:25:44,134 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 107 states. [2020-07-08 16:25:44,134 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 107 states. [2020-07-08 16:25:44,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:44,139 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-08 16:25:44,139 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-08 16:25:44,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:44,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:44,140 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 112 states. [2020-07-08 16:25:44,140 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 112 states. [2020-07-08 16:25:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:44,144 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-08 16:25:44,144 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-08 16:25:44,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:44,145 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:44,145 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:44,145 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:44,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-08 16:25:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-08 16:25:44,149 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 38 [2020-07-08 16:25:44,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:44,149 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-08 16:25:44,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 16:25:44,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-08 16:25:44,397 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 16:25:44,397 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 16:25:44,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-08 16:25:44,398 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:44,399 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 16:25:44,399 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 16:25:44,399 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 16:25:44,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:44,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-07-08 16:25:44,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:44,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [739459971] [2020-07-08 16:25:44,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:44,533 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 16:25:44,534 INFO L280 TraceCheckUtils]: 1: Hoare triple {3962#true} #valid := #valid[0 := 0]; {3962#true} is VALID [2020-07-08 16:25:44,534 INFO L280 TraceCheckUtils]: 2: Hoare triple {3962#true} assume 0 < #StackHeapBarrier; {3962#true} is VALID [2020-07-08 16:25:44,534 INFO L280 TraceCheckUtils]: 3: Hoare triple {3962#true} assume true; {3962#true} is VALID [2020-07-08 16:25:44,534 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3962#true} {3962#true} #260#return; {3962#true} is VALID [2020-07-08 16:25:44,535 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 16:25:44,536 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 16:25:44,536 INFO L280 TraceCheckUtils]: 2: Hoare triple {3962#true} #valid := #valid[0 := 0]; {3962#true} is VALID [2020-07-08 16:25:44,536 INFO L280 TraceCheckUtils]: 3: Hoare triple {3962#true} assume 0 < #StackHeapBarrier; {3962#true} is VALID [2020-07-08 16:25:44,536 INFO L280 TraceCheckUtils]: 4: Hoare triple {3962#true} assume true; {3962#true} is VALID [2020-07-08 16:25:44,537 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3962#true} {3962#true} #260#return; {3962#true} is VALID [2020-07-08 16:25:44,537 INFO L263 TraceCheckUtils]: 6: Hoare triple {3962#true} call #t~ret21 := main(); {3962#true} is VALID [2020-07-08 16:25:44,537 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 16:25:44,538 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 16:25:44,538 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 16:25:44,538 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 16:25:44,538 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 16:25:44,539 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 16:25:44,539 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 16:25:44,539 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 16:25:44,539 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 16:25:44,540 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 16:25:44,540 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 16:25:44,540 INFO L280 TraceCheckUtils]: 18: Hoare triple {3962#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3962#true} is VALID [2020-07-08 16:25:44,540 INFO L280 TraceCheckUtils]: 19: Hoare triple {3962#true} assume !!(0 != #t~nondet2); {3962#true} is VALID [2020-07-08 16:25:44,541 INFO L280 TraceCheckUtils]: 20: Hoare triple {3962#true} havoc #t~nondet2; {3962#true} is VALID [2020-07-08 16:25:44,541 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 16:25:44,541 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 16:25:44,541 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 16:25:44,542 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 16:25:44,542 INFO L280 TraceCheckUtils]: 25: Hoare triple {3962#true} havoc #t~mem4.base, #t~mem4.offset; {3962#true} is VALID [2020-07-08 16:25:44,542 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 16:25:44,542 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 16:25:44,543 INFO L280 TraceCheckUtils]: 28: Hoare triple {3962#true} havoc #t~mem5.base, #t~mem5.offset; {3962#true} is VALID [2020-07-08 16:25:44,544 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 16:25:44,545 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 16:25:44,546 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 16:25:44,547 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 16:25:44,549 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 16:25:44,550 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 16:25:44,551 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 16:25:44,552 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 16:25:44,553 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 16:25:44,554 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 16:25:44,555 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 16:25:44,555 INFO L280 TraceCheckUtils]: 40: Hoare triple {3963#false} havoc #t~mem11.base, #t~mem11.offset; {3963#false} is VALID [2020-07-08 16:25:44,556 INFO L280 TraceCheckUtils]: 41: Hoare triple {3963#false} assume !false; {3963#false} is VALID [2020-07-08 16:25:44,560 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 16:25:44,560 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:44,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [739459971] [2020-07-08 16:25:44,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:44,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 16:25:44,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998657773] [2020-07-08 16:25:44,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-08 16:25:44,562 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:44,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 16:25:44,614 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 16:25:44,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 16:25:44,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:44,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 16:25:44,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 16:25:44,615 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 5 states. [2020-07-08 16:25:45,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:45,831 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2020-07-08 16:25:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-08 16:25:45,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-08 16:25:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:45,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-08 16:25:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 16:25:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-08 16:25:45,836 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 106 transitions. [2020-07-08 16:25:45,987 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 16:25:45,989 INFO L225 Difference]: With dead ends: 110 [2020-07-08 16:25:45,990 INFO L226 Difference]: Without dead ends: 107 [2020-07-08 16:25:45,990 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 16:25:45,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-08 16:25:46,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2020-07-08 16:25:46,566 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:46,566 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 104 states. [2020-07-08 16:25:46,567 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 104 states. [2020-07-08 16:25:46,567 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 104 states. [2020-07-08 16:25:46,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:46,572 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-08 16:25:46,572 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 16:25:46,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:46,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:46,573 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 107 states. [2020-07-08 16:25:46,573 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 107 states. [2020-07-08 16:25:46,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:46,576 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-08 16:25:46,577 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-08 16:25:46,577 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:46,577 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:46,577 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:46,578 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:46,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-08 16:25:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-07-08 16:25:46,581 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 42 [2020-07-08 16:25:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:46,581 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-07-08 16:25:46,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 16:25:46,582 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 108 transitions. [2020-07-08 16:25:46,886 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 16:25:46,887 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-07-08 16:25:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-08 16:25:46,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:46,888 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 16:25:46,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 16:25:46,888 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 16:25:46,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:46,888 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-07-08 16:25:46,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:46,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092796709] [2020-07-08 16:25:46,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:47,364 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 16:25:47,364 INFO L280 TraceCheckUtils]: 1: Hoare triple {4618#true} #valid := #valid[0 := 0]; {4618#true} is VALID [2020-07-08 16:25:47,365 INFO L280 TraceCheckUtils]: 2: Hoare triple {4618#true} assume 0 < #StackHeapBarrier; {4618#true} is VALID [2020-07-08 16:25:47,365 INFO L280 TraceCheckUtils]: 3: Hoare triple {4618#true} assume true; {4618#true} is VALID [2020-07-08 16:25:47,365 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4618#true} {4618#true} #260#return; {4618#true} is VALID [2020-07-08 16:25:47,367 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 16:25:47,367 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 16:25:47,367 INFO L280 TraceCheckUtils]: 2: Hoare triple {4618#true} #valid := #valid[0 := 0]; {4618#true} is VALID [2020-07-08 16:25:47,368 INFO L280 TraceCheckUtils]: 3: Hoare triple {4618#true} assume 0 < #StackHeapBarrier; {4618#true} is VALID [2020-07-08 16:25:47,368 INFO L280 TraceCheckUtils]: 4: Hoare triple {4618#true} assume true; {4618#true} is VALID [2020-07-08 16:25:47,369 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4618#true} {4618#true} #260#return; {4618#true} is VALID [2020-07-08 16:25:47,369 INFO L263 TraceCheckUtils]: 6: Hoare triple {4618#true} call #t~ret21 := main(); {4618#true} is VALID [2020-07-08 16:25:47,371 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 16:25:47,372 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 16:25:47,372 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 16:25:47,373 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 16:25:47,374 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 16:25:47,376 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 16:25:47,377 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 16:25:47,378 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 16:25:47,380 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 16:25:47,381 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 16:25:47,383 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 16:25:47,384 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 16:25:47,385 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 16:25:47,387 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 16:25:47,388 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 16:25:47,392 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 16:25:47,394 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 16:25:47,396 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 16:25:47,397 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 16:25:47,398 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 16:25:47,399 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 16:25:47,400 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 16:25:47,401 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 16:25:47,402 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 16:25:47,402 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 16:25:47,403 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 16:25:47,404 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 16:25:47,405 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 16:25:47,406 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 16:25:47,407 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 16:25:47,408 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 16:25:47,408 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 16:25:47,409 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 16:25:47,410 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 16:25:47,411 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 16:25:47,412 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 16:25:47,412 INFO L280 TraceCheckUtils]: 43: Hoare triple {4619#false} assume !false; {4619#false} is VALID [2020-07-08 16:25:47,417 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 16:25:47,417 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:47,418 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092796709] [2020-07-08 16:25:47,418 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:47,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-08 16:25:47,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124735246] [2020-07-08 16:25:47,419 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-08 16:25:47,419 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:47,419 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-08 16:25:47,480 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 16:25:47,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-08 16:25:47,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:47,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-08 16:25:47,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-08 16:25:47,482 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 14 states. [2020-07-08 16:25:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:51,277 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2020-07-08 16:25:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-08 16:25:51,277 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-08 16:25:51,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:51,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 16:25:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-08 16:25:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-08 16:25:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-08 16:25:51,283 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 155 transitions. [2020-07-08 16:25:51,554 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 16:25:51,557 INFO L225 Difference]: With dead ends: 154 [2020-07-08 16:25:51,557 INFO L226 Difference]: Without dead ends: 152 [2020-07-08 16:25:51,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-07-08 16:25:51,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-08 16:25:52,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-07-08 16:25:52,397 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:52,397 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states. Second operand 127 states. [2020-07-08 16:25:52,398 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states. Second operand 127 states. [2020-07-08 16:25:52,398 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 127 states. [2020-07-08 16:25:52,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:52,402 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-08 16:25:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-08 16:25:52,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:52,403 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:52,403 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 152 states. [2020-07-08 16:25:52,403 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 152 states. [2020-07-08 16:25:52,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:52,407 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-08 16:25:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-08 16:25:52,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:52,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:52,408 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:52,408 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-08 16:25:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2020-07-08 16:25:52,412 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 44 [2020-07-08 16:25:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:52,412 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2020-07-08 16:25:52,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-08 16:25:52,412 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 127 states and 132 transitions. [2020-07-08 16:25:52,753 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 16:25:52,753 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2020-07-08 16:25:52,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-08 16:25:52,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:52,755 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 16:25:52,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 16:25:52,756 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 16:25:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:52,756 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-07-08 16:25:52,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:52,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894116842] [2020-07-08 16:25:52,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:52,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:53,003 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 16:25:53,004 INFO L280 TraceCheckUtils]: 1: Hoare triple {5525#true} #valid := #valid[0 := 0]; {5525#true} is VALID [2020-07-08 16:25:53,004 INFO L280 TraceCheckUtils]: 2: Hoare triple {5525#true} assume 0 < #StackHeapBarrier; {5525#true} is VALID [2020-07-08 16:25:53,004 INFO L280 TraceCheckUtils]: 3: Hoare triple {5525#true} assume true; {5525#true} is VALID [2020-07-08 16:25:53,004 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5525#true} {5525#true} #260#return; {5525#true} is VALID [2020-07-08 16:25:53,005 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 16:25:53,005 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 16:25:53,006 INFO L280 TraceCheckUtils]: 2: Hoare triple {5525#true} #valid := #valid[0 := 0]; {5525#true} is VALID [2020-07-08 16:25:53,006 INFO L280 TraceCheckUtils]: 3: Hoare triple {5525#true} assume 0 < #StackHeapBarrier; {5525#true} is VALID [2020-07-08 16:25:53,006 INFO L280 TraceCheckUtils]: 4: Hoare triple {5525#true} assume true; {5525#true} is VALID [2020-07-08 16:25:53,006 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5525#true} {5525#true} #260#return; {5525#true} is VALID [2020-07-08 16:25:53,006 INFO L263 TraceCheckUtils]: 6: Hoare triple {5525#true} call #t~ret21 := main(); {5525#true} is VALID [2020-07-08 16:25:53,007 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 16:25:53,007 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 16:25:53,007 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 16:25:53,007 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 16:25:53,007 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 16:25:53,008 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 16:25:53,008 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 16:25:53,009 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 16:25:53,014 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 16:25:53,016 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 16:25:53,017 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 16:25:53,018 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 16:25:53,021 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 16:25:53,024 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 16:25:53,026 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 16:25:53,031 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 16:25:53,032 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 16:25:53,033 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 16:25:53,034 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 16:25:53,035 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 16:25:53,036 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 16:25:53,038 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 16:25:53,044 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 16:25:53,045 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 16:25:53,046 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 16:25:53,047 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 16:25:53,048 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 16:25:53,049 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 16:25:53,050 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 16:25:53,051 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 16:25:53,051 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 16:25:53,052 INFO L280 TraceCheckUtils]: 38: Hoare triple {5526#false} assume ~unnamed1~0~RED == #t~mem13; {5526#false} is VALID [2020-07-08 16:25:53,052 INFO L280 TraceCheckUtils]: 39: Hoare triple {5526#false} havoc #t~mem13; {5526#false} is VALID [2020-07-08 16:25:53,052 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 16:25:53,052 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 16:25:53,052 INFO L280 TraceCheckUtils]: 42: Hoare triple {5526#false} havoc #t~mem14.base, #t~mem14.offset; {5526#false} is VALID [2020-07-08 16:25:53,053 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 16:25:53,053 INFO L280 TraceCheckUtils]: 44: Hoare triple {5526#false} assume !false; {5526#false} is VALID [2020-07-08 16:25:53,059 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 16:25:53,059 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:53,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894116842] [2020-07-08 16:25:53,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:53,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 16:25:53,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421277900] [2020-07-08 16:25:53,062 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-08 16:25:53,062 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:53,062 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 16:25:53,120 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 16:25:53,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 16:25:53,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:53,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 16:25:53,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-08 16:25:53,121 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 7 states. [2020-07-08 16:25:55,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:55,249 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2020-07-08 16:25:55,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-08 16:25:55,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-08 16:25:55,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:25:55,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 16:25:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-08 16:25:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 16:25:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-08 16:25:55,259 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 141 transitions. [2020-07-08 16:25:55,455 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 16:25:55,458 INFO L225 Difference]: With dead ends: 159 [2020-07-08 16:25:55,459 INFO L226 Difference]: Without dead ends: 120 [2020-07-08 16:25:55,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-08 16:25:55,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-08 16:25:56,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-08 16:25:56,259 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:25:56,259 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 120 states. [2020-07-08 16:25:56,259 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-08 16:25:56,259 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-08 16:25:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:56,264 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-08 16:25:56,264 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 16:25:56,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:56,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:56,264 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-08 16:25:56,264 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-08 16:25:56,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:25:56,268 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-08 16:25:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 16:25:56,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:25:56,269 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:25:56,269 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:25:56,269 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:25:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-08 16:25:56,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2020-07-08 16:25:56,273 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 45 [2020-07-08 16:25:56,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:25:56,273 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2020-07-08 16:25:56,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 16:25:56,273 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 120 states and 124 transitions. [2020-07-08 16:25:56,598 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 16:25:56,598 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-08 16:25:56,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-08 16:25:56,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:25:56,600 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 16:25:56,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 16:25:56,600 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 16:25:56,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:25:56,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-07-08 16:25:56,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:25:56,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [187597523] [2020-07-08 16:25:56,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:25:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:25:57,270 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 16:25:57,270 INFO L280 TraceCheckUtils]: 1: Hoare triple {6347#true} #valid := #valid[0 := 0]; {6347#true} is VALID [2020-07-08 16:25:57,270 INFO L280 TraceCheckUtils]: 2: Hoare triple {6347#true} assume 0 < #StackHeapBarrier; {6347#true} is VALID [2020-07-08 16:25:57,271 INFO L280 TraceCheckUtils]: 3: Hoare triple {6347#true} assume true; {6347#true} is VALID [2020-07-08 16:25:57,271 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6347#true} {6347#true} #260#return; {6347#true} is VALID [2020-07-08 16:25:57,273 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 16:25:57,274 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 16:25:57,274 INFO L280 TraceCheckUtils]: 2: Hoare triple {6347#true} #valid := #valid[0 := 0]; {6347#true} is VALID [2020-07-08 16:25:57,274 INFO L280 TraceCheckUtils]: 3: Hoare triple {6347#true} assume 0 < #StackHeapBarrier; {6347#true} is VALID [2020-07-08 16:25:57,275 INFO L280 TraceCheckUtils]: 4: Hoare triple {6347#true} assume true; {6347#true} is VALID [2020-07-08 16:25:57,275 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6347#true} {6347#true} #260#return; {6347#true} is VALID [2020-07-08 16:25:57,275 INFO L263 TraceCheckUtils]: 6: Hoare triple {6347#true} call #t~ret21 := main(); {6347#true} is VALID [2020-07-08 16:25:57,277 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 16:25:57,279 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 16:25:57,280 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 16:25:57,281 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 16:25:57,282 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 16:25:57,284 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 16:25:57,285 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 16:25:57,287 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 16:25:57,288 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 16:25:57,290 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 16:25:57,292 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 16:25:57,293 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 16:25:57,294 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 16:25:57,296 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 16:25:57,298 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 16:25:57,301 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 16:25:57,303 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 16:25:57,305 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 16:25:57,307 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 16:25:57,308 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 16:25:57,309 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 16:25:57,310 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 16:25:57,312 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 16:25:57,313 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 16:25:57,314 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 16:25:57,315 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 16:25:57,316 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 16:25:57,317 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 16:25:57,319 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 16:25:57,329 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 16:25:57,330 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 16:25:57,331 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 16:25:57,331 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 16:25:57,332 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 16:25:57,333 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 16:25:57,333 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 16:25:57,334 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 16:25:57,334 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 16:25:57,335 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 16:25:57,335 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 16:25:57,336 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 16:25:57,336 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 16:25:57,337 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 16:25:57,337 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 16:25:57,340 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 16:25:57,341 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 16:25:57,342 INFO L280 TraceCheckUtils]: 53: Hoare triple {6348#false} assume !false; {6348#false} is VALID [2020-07-08 16:25:57,353 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 16:25:57,353 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:25:57,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [187597523] [2020-07-08 16:25:57,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:25:57,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-08 16:25:57,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751330727] [2020-07-08 16:25:57,363 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-08 16:25:57,363 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:25:57,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-08 16:25:57,449 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 16:25:57,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-08 16:25:57,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:25:57,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-08 16:25:57,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-07-08 16:25:57,451 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand 19 states. [2020-07-08 16:26:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:03,743 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2020-07-08 16:26:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-08 16:26:03,743 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-08 16:26:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 16:26:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-08 16:26:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 16:26:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-08 16:26:03,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 174 transitions. [2020-07-08 16:26:04,051 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 16:26:04,055 INFO L225 Difference]: With dead ends: 187 [2020-07-08 16:26:04,055 INFO L226 Difference]: Without dead ends: 185 [2020-07-08 16:26:04,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2020-07-08 16:26:04,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-08 16:26:05,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 167. [2020-07-08 16:26:05,325 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:05,325 INFO L82 GeneralOperation]: Start isEquivalent. First operand 185 states. Second operand 167 states. [2020-07-08 16:26:05,325 INFO L74 IsIncluded]: Start isIncluded. First operand 185 states. Second operand 167 states. [2020-07-08 16:26:05,326 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 167 states. [2020-07-08 16:26:05,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:05,330 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-08 16:26:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-08 16:26:05,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:05,331 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:05,331 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 185 states. [2020-07-08 16:26:05,332 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 185 states. [2020-07-08 16:26:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:05,336 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-08 16:26:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-08 16:26:05,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:05,337 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:05,337 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:05,337 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-08 16:26:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-07-08 16:26:05,341 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 54 [2020-07-08 16:26:05,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:05,341 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-07-08 16:26:05,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-08 16:26:05,342 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 167 states and 174 transitions. [2020-07-08 16:26:05,829 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 16:26:05,830 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-07-08 16:26:05,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-08 16:26:05,831 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:05,831 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 16:26:05,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 16:26:05,832 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 16:26:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:05,832 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-07-08 16:26:05,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:05,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888538466] [2020-07-08 16:26:05,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:05,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:06,998 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 16:26:06,999 INFO L280 TraceCheckUtils]: 1: Hoare triple {7489#true} #valid := #valid[0 := 0]; {7489#true} is VALID [2020-07-08 16:26:07,001 INFO L280 TraceCheckUtils]: 2: Hoare triple {7489#true} assume 0 < #StackHeapBarrier; {7489#true} is VALID [2020-07-08 16:26:07,002 INFO L280 TraceCheckUtils]: 3: Hoare triple {7489#true} assume true; {7489#true} is VALID [2020-07-08 16:26:07,002 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7489#true} {7489#true} #260#return; {7489#true} is VALID [2020-07-08 16:26:07,003 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 16:26:07,004 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 16:26:07,004 INFO L280 TraceCheckUtils]: 2: Hoare triple {7489#true} #valid := #valid[0 := 0]; {7489#true} is VALID [2020-07-08 16:26:07,004 INFO L280 TraceCheckUtils]: 3: Hoare triple {7489#true} assume 0 < #StackHeapBarrier; {7489#true} is VALID [2020-07-08 16:26:07,004 INFO L280 TraceCheckUtils]: 4: Hoare triple {7489#true} assume true; {7489#true} is VALID [2020-07-08 16:26:07,005 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7489#true} {7489#true} #260#return; {7489#true} is VALID [2020-07-08 16:26:07,005 INFO L263 TraceCheckUtils]: 6: Hoare triple {7489#true} call #t~ret21 := main(); {7489#true} is VALID [2020-07-08 16:26:07,006 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 16:26:07,006 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 16:26:07,007 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 16:26:07,008 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 16:26:07,009 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 16:26:07,010 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 16:26:07,011 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 16:26:07,013 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 16:26:07,014 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 16:26:07,015 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 16:26:07,016 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 16:26:07,021 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 16:26:07,022 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 16:26:07,022 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 16:26:07,024 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 16:26:07,025 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 16:26:07,026 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 16:26:07,029 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 16:26:07,035 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 16:26:07,036 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 16:26:07,037 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 16:26:07,038 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 16:26:07,039 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 16:26:07,040 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 16:26:07,041 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 16:26:07,043 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 16:26:07,044 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 16:26:07,044 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 16:26:07,045 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 16:26:07,046 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 16:26:07,046 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 16:26:07,048 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 16:26:07,048 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 16:26:07,049 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 16:26:07,050 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 16:26:07,051 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 16:26:07,052 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 16:26:07,053 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 16:26:07,053 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 16:26:07,054 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 16:26:07,055 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 16:26:07,056 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 16:26:07,057 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 16:26:07,057 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 16:26:07,058 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 16:26:07,058 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 16:26:07,059 INFO L280 TraceCheckUtils]: 53: Hoare triple {7490#false} havoc #t~mem12; {7490#false} is VALID [2020-07-08 16:26:07,059 INFO L280 TraceCheckUtils]: 54: Hoare triple {7490#false} assume !false; {7490#false} is VALID [2020-07-08 16:26:07,072 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 16:26:07,073 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:07,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888538466] [2020-07-08 16:26:07,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:07,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-08 16:26:07,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090913955] [2020-07-08 16:26:07,074 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-07-08 16:26:07,074 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:07,075 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-08 16:26:07,167 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 16:26:07,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-08 16:26:07,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:07,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-08 16:26:07,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2020-07-08 16:26:07,169 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 19 states. [2020-07-08 16:26:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:13,008 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2020-07-08 16:26:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 16:26:13,009 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-07-08 16:26:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:13,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 16:26:13,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 183 transitions. [2020-07-08 16:26:13,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-08 16:26:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 183 transitions. [2020-07-08 16:26:13,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 183 transitions. [2020-07-08 16:26:13,357 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 16:26:13,361 INFO L225 Difference]: With dead ends: 224 [2020-07-08 16:26:13,362 INFO L226 Difference]: Without dead ends: 221 [2020-07-08 16:26:13,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=311, Invalid=879, Unknown=0, NotChecked=0, Total=1190 [2020-07-08 16:26:13,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-08 16:26:14,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 177. [2020-07-08 16:26:14,751 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:14,751 INFO L82 GeneralOperation]: Start isEquivalent. First operand 221 states. Second operand 177 states. [2020-07-08 16:26:14,751 INFO L74 IsIncluded]: Start isIncluded. First operand 221 states. Second operand 177 states. [2020-07-08 16:26:14,752 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 177 states. [2020-07-08 16:26:14,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:14,758 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-08 16:26:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-08 16:26:14,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:14,759 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:14,759 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 221 states. [2020-07-08 16:26:14,759 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 221 states. [2020-07-08 16:26:14,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:14,765 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-08 16:26:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-08 16:26:14,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:14,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:14,766 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:14,766 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-08 16:26:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 185 transitions. [2020-07-08 16:26:14,770 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 185 transitions. Word has length 55 [2020-07-08 16:26:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:14,770 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 185 transitions. [2020-07-08 16:26:14,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-08 16:26:14,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 177 states and 185 transitions. [2020-07-08 16:26:15,308 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 16:26:15,308 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 185 transitions. [2020-07-08 16:26:15,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-08 16:26:15,309 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:15,310 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 16:26:15,310 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 16:26:15,310 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 16:26:15,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:15,311 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-07-08 16:26:15,311 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:15,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147204694] [2020-07-08 16:26:15,311 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:17,301 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 16:26:17,301 INFO L280 TraceCheckUtils]: 1: Hoare triple {8791#true} #valid := #valid[0 := 0]; {8791#true} is VALID [2020-07-08 16:26:17,301 INFO L280 TraceCheckUtils]: 2: Hoare triple {8791#true} assume 0 < #StackHeapBarrier; {8791#true} is VALID [2020-07-08 16:26:17,301 INFO L280 TraceCheckUtils]: 3: Hoare triple {8791#true} assume true; {8791#true} is VALID [2020-07-08 16:26:17,301 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8791#true} {8791#true} #260#return; {8791#true} is VALID [2020-07-08 16:26:17,302 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 16:26:17,302 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 16:26:17,303 INFO L280 TraceCheckUtils]: 2: Hoare triple {8791#true} #valid := #valid[0 := 0]; {8791#true} is VALID [2020-07-08 16:26:17,303 INFO L280 TraceCheckUtils]: 3: Hoare triple {8791#true} assume 0 < #StackHeapBarrier; {8791#true} is VALID [2020-07-08 16:26:17,303 INFO L280 TraceCheckUtils]: 4: Hoare triple {8791#true} assume true; {8791#true} is VALID [2020-07-08 16:26:17,303 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8791#true} {8791#true} #260#return; {8791#true} is VALID [2020-07-08 16:26:17,303 INFO L263 TraceCheckUtils]: 6: Hoare triple {8791#true} call #t~ret21 := main(); {8791#true} is VALID [2020-07-08 16:26:17,305 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 16:26:17,305 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 16:26:17,306 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 16:26:17,307 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 16:26:17,307 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 16:26:17,308 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 16:26:17,309 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 16:26:17,310 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 16:26:17,311 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 16:26:17,312 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 16:26:17,313 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 16:26:17,315 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 16:26:17,316 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 16:26:17,317 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 16:26:17,318 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 16:26:17,319 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 16:26:17,321 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 16:26:17,323 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 16:26:17,324 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 16:26:17,325 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 16:26:17,326 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 16:26:17,328 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 16:26:17,329 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 16:26:17,330 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 16:26:17,331 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 16:26:17,332 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 16:26:17,333 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 16:26:17,334 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 16:26:17,335 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 16:26:17,337 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 16:26:17,339 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 16:26:17,340 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 16:26:17,340 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 16:26:17,341 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 16:26:17,342 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 16:26:17,344 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 16:26:17,345 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 16:26:17,346 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 16:26:17,348 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 16:26:17,348 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 16:26:17,349 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 16:26:17,350 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 16:26:17,350 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 16:26:17,351 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 16:26:17,352 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 16:26:17,352 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 16:26:17,353 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 16:26:17,353 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 16:26:17,354 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 16:26:17,355 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 16:26:17,355 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 16:26:17,356 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 16:26:17,356 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 16:26:17,357 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 16:26:17,357 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 16:26:17,358 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 16:26:17,358 INFO L280 TraceCheckUtils]: 63: Hoare triple {8792#false} havoc #t~mem12; {8792#false} is VALID [2020-07-08 16:26:17,358 INFO L280 TraceCheckUtils]: 64: Hoare triple {8792#false} assume !false; {8792#false} is VALID [2020-07-08 16:26:17,378 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 16:26:17,378 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:17,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147204694] [2020-07-08 16:26:17,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:17,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2020-07-08 16:26:17,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442391706] [2020-07-08 16:26:17,379 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 65 [2020-07-08 16:26:17,380 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:17,380 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 25 states. [2020-07-08 16:26:17,499 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 16:26:17,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-08 16:26:17,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:17,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-08 16:26:17,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2020-07-08 16:26:17,501 INFO L87 Difference]: Start difference. First operand 177 states and 185 transitions. Second operand 25 states. [2020-07-08 16:26:26,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:26,020 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-07-08 16:26:26,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-08 16:26:26,020 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 65 [2020-07-08 16:26:26,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 16:26:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 209 transitions. [2020-07-08 16:26:26,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-07-08 16:26:26,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 209 transitions. [2020-07-08 16:26:26,026 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 209 transitions. [2020-07-08 16:26:26,444 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 16:26:26,448 INFO L225 Difference]: With dead ends: 254 [2020-07-08 16:26:26,449 INFO L226 Difference]: Without dead ends: 251 [2020-07-08 16:26:26,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=531, Invalid=1821, Unknown=0, NotChecked=0, Total=2352 [2020-07-08 16:26:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-07-08 16:26:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 201. [2020-07-08 16:26:28,226 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:28,227 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states. Second operand 201 states. [2020-07-08 16:26:28,227 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand 201 states. [2020-07-08 16:26:28,227 INFO L87 Difference]: Start difference. First operand 251 states. Second operand 201 states. [2020-07-08 16:26:28,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:28,234 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-08 16:26:28,234 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-08 16:26:28,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:28,235 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:28,236 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 251 states. [2020-07-08 16:26:28,236 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 251 states. [2020-07-08 16:26:28,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:28,242 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-08 16:26:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-08 16:26:28,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:28,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:28,243 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:28,244 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:28,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-08 16:26:28,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 210 transitions. [2020-07-08 16:26:28,248 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 210 transitions. Word has length 65 [2020-07-08 16:26:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:28,249 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 210 transitions. [2020-07-08 16:26:28,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-08 16:26:28,249 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 210 transitions. [2020-07-08 16:26:28,925 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 16:26:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 210 transitions. [2020-07-08 16:26:28,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-08 16:26:28,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:28,926 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 16:26:28,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 16:26:28,927 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 16:26:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:28,927 INFO L82 PathProgramCache]: Analyzing trace with hash -736103817, now seen corresponding path program 1 times [2020-07-08 16:26:28,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:28,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699085617] [2020-07-08 16:26:28,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 16:26:29,228 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 16:26:29,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {10283#true} #valid := #valid[0 := 0]; {10283#true} is VALID [2020-07-08 16:26:29,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {10283#true} assume 0 < #StackHeapBarrier; {10283#true} is VALID [2020-07-08 16:26:29,228 INFO L280 TraceCheckUtils]: 3: Hoare triple {10283#true} assume true; {10283#true} is VALID [2020-07-08 16:26:29,229 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {10283#true} {10283#true} #260#return; {10283#true} is VALID [2020-07-08 16:26:29,231 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 16:26:29,231 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 16:26:29,232 INFO L280 TraceCheckUtils]: 2: Hoare triple {10283#true} #valid := #valid[0 := 0]; {10283#true} is VALID [2020-07-08 16:26:29,232 INFO L280 TraceCheckUtils]: 3: Hoare triple {10283#true} assume 0 < #StackHeapBarrier; {10283#true} is VALID [2020-07-08 16:26:29,232 INFO L280 TraceCheckUtils]: 4: Hoare triple {10283#true} assume true; {10283#true} is VALID [2020-07-08 16:26:29,232 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {10283#true} {10283#true} #260#return; {10283#true} is VALID [2020-07-08 16:26:29,232 INFO L263 TraceCheckUtils]: 6: Hoare triple {10283#true} call #t~ret21 := main(); {10283#true} is VALID [2020-07-08 16:26:29,234 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 16:26:29,235 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 16:26:29,235 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 16:26:29,236 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 16:26:29,237 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 16:26:29,238 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 16:26:29,239 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 16:26:29,240 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 16:26:29,240 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 16:26:29,241 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 16:26:29,242 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 16:26:29,243 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 16:26:29,244 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 16:26:29,244 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 16:26:29,246 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 16:26:29,247 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 16:26:29,247 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 16:26:29,248 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 16:26:29,249 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 16:26:29,250 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 16:26:29,250 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 16:26:29,251 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 16:26:29,252 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 16:26:29,253 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 16:26:29,254 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 16:26:29,254 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 16:26:29,255 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 16:26:29,256 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 16:26:29,257 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 16:26:29,257 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 16:26:29,258 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 16:26:29,259 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 16:26:29,260 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 16:26:29,260 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 16:26:29,261 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 16:26:29,262 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 16:26:29,263 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 16:26:29,264 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 16:26:29,264 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 16:26:29,265 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 16:26:29,266 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 16:26:29,268 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 16:26:29,269 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 16:26:29,271 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 16:26:29,271 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 16:26:29,272 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 16:26:29,273 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 16:26:29,274 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 16:26:29,275 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 16:26:29,275 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 16:26:29,276 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 16:26:29,277 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 16:26:29,278 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 16:26:29,278 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 16:26:29,279 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 16:26:29,280 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 16:26:29,281 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 16:26:29,281 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 16:26:29,282 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 16:26:29,283 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 16:26:29,284 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 16:26:29,284 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 16:26:29,285 INFO L280 TraceCheckUtils]: 69: Hoare triple {10284#false} assume !false; {10284#false} is VALID [2020-07-08 16:26:29,292 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 16:26:29,292 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 16:26:29,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699085617] [2020-07-08 16:26:29,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 16:26:29,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-08 16:26:29,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191968675] [2020-07-08 16:26:29,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-08 16:26:29,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 16:26:29,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 16:26:29,402 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 16:26:29,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 16:26:29,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 16:26:29,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 16:26:29,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-07-08 16:26:29,404 INFO L87 Difference]: Start difference. First operand 201 states and 210 transitions. Second operand 10 states. [2020-07-08 16:26:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:33,675 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-07-08 16:26:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 16:26:33,675 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-08 16:26:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 16:26:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 16:26:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2020-07-08 16:26:33,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 16:26:33,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2020-07-08 16:26:33,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 124 transitions. [2020-07-08 16:26:33,870 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 16:26:33,875 INFO L225 Difference]: With dead ends: 227 [2020-07-08 16:26:33,875 INFO L226 Difference]: Without dead ends: 225 [2020-07-08 16:26:33,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-07-08 16:26:33,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-08 16:26:35,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2020-07-08 16:26:35,792 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 16:26:35,792 INFO L82 GeneralOperation]: Start isEquivalent. First operand 225 states. Second operand 201 states. [2020-07-08 16:26:35,792 INFO L74 IsIncluded]: Start isIncluded. First operand 225 states. Second operand 201 states. [2020-07-08 16:26:35,792 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 201 states. [2020-07-08 16:26:35,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:35,797 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-08 16:26:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-08 16:26:35,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:35,798 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:35,798 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 225 states. [2020-07-08 16:26:35,798 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 225 states. [2020-07-08 16:26:35,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 16:26:35,804 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-08 16:26:35,804 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-08 16:26:35,805 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 16:26:35,805 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 16:26:35,805 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 16:26:35,805 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 16:26:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-08 16:26:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 209 transitions. [2020-07-08 16:26:35,810 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 209 transitions. Word has length 70 [2020-07-08 16:26:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 16:26:35,810 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 209 transitions. [2020-07-08 16:26:35,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 16:26:35,810 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 209 transitions. [2020-07-08 16:26:36,468 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 16:26:36,469 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 209 transitions. [2020-07-08 16:26:36,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 16:26:36,471 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 16:26:36,471 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 16:26:36,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 16:26:36,472 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 16:26:36,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 16:26:36,472 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-07-08 16:26:36,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 16:26:36,472 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143182136] [2020-07-08 16:26:36,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 16:26:36,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 16:26:36,496 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:277) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-08 16:26:36,501 INFO L168 Benchmark]: Toolchain (without parser) took 68050.96 ms. Allocated memory was 134.7 MB in the beginning and 540.5 MB in the end (delta: 405.8 MB). Free memory was 98.9 MB in the beginning and 286.1 MB in the end (delta: -187.3 MB). Peak memory consumption was 218.5 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,502 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.91 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 98.7 MB in the beginning and 167.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,503 INFO L168 Benchmark]: Boogie Preprocessor took 112.59 ms. Allocated memory is still 201.9 MB. Free memory was 167.1 MB in the beginning and 163.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,504 INFO L168 Benchmark]: RCFGBuilder took 1000.47 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 84.0 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,504 INFO L168 Benchmark]: TraceAbstraction took 66222.10 ms. Allocated memory was 201.9 MB in the beginning and 540.5 MB in the end (delta: 338.7 MB). Free memory was 84.0 MB in the beginning and 286.1 MB in the end (delta: -202.1 MB). Peak memory consumption was 136.6 MB. Max. memory is 7.1 GB. [2020-07-08 16:26:36,507 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 0.33 ms. Allocated memory is still 134.7 MB. Free memory was 118.2 MB in the beginning and 118.0 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 709.91 ms. Allocated memory was 134.7 MB in the beginning and 201.9 MB in the end (delta: 67.1 MB). Free memory was 98.7 MB in the beginning and 167.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.59 ms. Allocated memory is still 201.9 MB. Free memory was 167.1 MB in the beginning and 163.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1000.47 ms. Allocated memory is still 201.9 MB. Free memory was 163.4 MB in the beginning and 84.0 MB in the end (delta: 79.3 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 66222.10 ms. Allocated memory was 201.9 MB in the beginning and 540.5 MB in the end (delta: 338.7 MB). Free memory was 84.0 MB in the beginning and 286.1 MB in the end (delta: -202.1 MB). Peak memory consumption was 136.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:442) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...