/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 0.1.25-8fc6572 [2020-07-10 19:03:54,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 19:03:54,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 19:03:54,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 19:03:54,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 19:03:54,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 19:03:54,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 19:03:54,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 19:03:54,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 19:03:54,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 19:03:54,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 19:03:54,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 19:03:54,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 19:03:54,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 19:03:54,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 19:03:54,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 19:03:54,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 19:03:54,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 19:03:54,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 19:03:54,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 19:03:54,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 19:03:54,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 19:03:54,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 19:03:54,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 19:03:54,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 19:03:54,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 19:03:54,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 19:03:54,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 19:03:54,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 19:03:54,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 19:03:54,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 19:03:54,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 19:03:54,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 19:03:54,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 19:03:54,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 19:03:54,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 19:03:54,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 19:03:54,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 19:03:54,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 19:03:54,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 19:03:54,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 19:03:54,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 19:03:54,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 19:03:54,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 19:03:54,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 19:03:54,984 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 19:03:54,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 19:03:54,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 19:03:54,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 19:03:54,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 19:03:54,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 19:03:54,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 19:03:54,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 19:03:54,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 19:03:54,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 19:03:54,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 19:03:54,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 19:03:54,986 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 19:03:54,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 19:03:54,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 19:03:54,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 19:03:54,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 19:03:54,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 19:03:54,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 19:03:54,988 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 19:03:55,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 19:03:55,348 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 19:03:55,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 19:03:55,356 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 19:03:55,356 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 19:03:55,357 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-10 19:03:55,443 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8559e3f/8efa3da6466e4915a0c297caeb531adb/FLAGd6ec77480 [2020-07-10 19:03:56,024 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 19:03:56,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-10 19:03:56,040 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8559e3f/8efa3da6466e4915a0c297caeb531adb/FLAGd6ec77480 [2020-07-10 19:03:56,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af8559e3f/8efa3da6466e4915a0c297caeb531adb [2020-07-10 19:03:56,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 19:03:56,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 19:03:56,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 19:03:56,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 19:03:56,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 19:03:56,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:03:56" (1/1) ... [2020-07-10 19:03:56,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783f0603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:56, skipping insertion in model container [2020-07-10 19:03:56,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 07:03:56" (1/1) ... [2020-07-10 19:03:56,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 19:03:56,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 19:03:57,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:03:57,047 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 19:03:57,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 19:03:57,186 INFO L208 MainTranslator]: Completed translation [2020-07-10 19:03:57,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57 WrapperNode [2020-07-10 19:03:57,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 19:03:57,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 19:03:57,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 19:03:57,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 19:03:57,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (1/1) ... [2020-07-10 19:03:57,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 19:03:57,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 19:03:57,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 19:03:57,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 19:03:57,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (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 [2020-07-10 19:03:57,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 19:03:57,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 19:03:57,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 19:03:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-10 19:03:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-10 19:03:57,349 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-10 19:03:57,350 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-10 19:03:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-10 19:03:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-10 19:03:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-10 19:03:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-10 19:03:57,351 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-10 19:03:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-10 19:03:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-10 19:03:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-10 19:03:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-10 19:03:57,352 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-10 19:03:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-10 19:03:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-10 19:03:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-10 19:03:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-10 19:03:57,353 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-10 19:03:57,354 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-10 19:03:57,355 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-10 19:03:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-10 19:03:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-10 19:03:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-10 19:03:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-10 19:03:57,360 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-10 19:03:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-10 19:03:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-10 19:03:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-10 19:03:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 19:03:57,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-10 19:03:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 19:03:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 19:03:58,378 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 19:03:58,379 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-07-10 19:03:58,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:03:58 BoogieIcfgContainer [2020-07-10 19:03:58,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 19:03:58,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 19:03:58,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 19:03:58,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 19:03:58,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 07:03:56" (1/3) ... [2020-07-10 19:03:58,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5a6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:03:58, skipping insertion in model container [2020-07-10 19:03:58,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 07:03:57" (2/3) ... [2020-07-10 19:03:58,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5a6ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 07:03:58, skipping insertion in model container [2020-07-10 19:03:58,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 07:03:58" (3/3) ... [2020-07-10 19:03:58,400 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-07-10 19:03:58,412 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 19:03:58,423 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-10 19:03:58,442 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-10 19:03:58,472 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 19:03:58,473 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 19:03:58,473 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 19:03:58,473 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 19:03:58,473 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 19:03:58,474 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 19:03:58,474 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 19:03:58,474 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 19:03:58,511 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-07-10 19:03:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-10 19:03:58,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:03:58,532 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] [2020-07-10 19:03:58,533 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]=== [2020-07-10 19:03:58,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:03:58,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-07-10 19:03:58,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:03:58,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606188102] [2020-07-10 19:03:58,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:03:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:03:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:03:58,865 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 [2020-07-10 19:03:58,865 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-10 19:03:58,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-10 19:03:58,868 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-10 19:03:58,869 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-10 19:03:58,873 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 [2020-07-10 19:03:58,873 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 [2020-07-10 19:03:58,874 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-10 19:03:58,874 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-10 19:03:58,874 INFO L280 TraceCheckUtils]: 4: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-10 19:03:58,875 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-10 19:03:58,875 INFO L263 TraceCheckUtils]: 6: Hoare triple {126#true} call #t~ret21 := main(); {126#true} is VALID [2020-07-10 19:03:58,876 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 [2020-07-10 19:03:58,876 INFO L280 TraceCheckUtils]: 8: Hoare triple {126#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {126#true} is VALID [2020-07-10 19:03:58,877 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 [2020-07-10 19:03:58,877 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 [2020-07-10 19:03:58,877 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 [2020-07-10 19:03:58,878 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 [2020-07-10 19:03:58,878 INFO L280 TraceCheckUtils]: 13: Hoare triple {126#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {126#true} is VALID [2020-07-10 19:03:58,878 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 [2020-07-10 19:03:58,879 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 [2020-07-10 19:03:58,880 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 [2020-07-10 19:03:58,880 INFO L280 TraceCheckUtils]: 17: Hoare triple {126#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {126#true} is VALID [2020-07-10 19:03:58,881 INFO L280 TraceCheckUtils]: 18: Hoare triple {126#true} assume !true; {127#false} is VALID [2020-07-10 19:03:58,882 INFO L280 TraceCheckUtils]: 19: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {127#false} is VALID [2020-07-10 19:03:58,882 INFO L280 TraceCheckUtils]: 20: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {127#false} is VALID [2020-07-10 19:03:58,883 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 [2020-07-10 19:03:58,883 INFO L280 TraceCheckUtils]: 22: Hoare triple {127#false} assume !false; {127#false} is VALID [2020-07-10 19:03:58,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:03:58,887 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:03:58,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606188102] [2020-07-10 19:03:58,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:03:58,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-10 19:03:58,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812061303] [2020-07-10 19:03:58,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 19:03:58,903 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:03:58,908 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-10 19:03:58,975 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:03:58,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-10 19:03:58,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:03:58,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-10 19:03:58,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-10 19:03:58,985 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-07-10 19:03:59,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:03:59,802 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-07-10 19:03:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-10 19:03:59,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-10 19:03:59,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:03:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:03:59,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-10 19:03:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-10 19:03:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-10 19:03:59,839 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-10 19:04:00,239 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:00,258 INFO L225 Difference]: With dead ends: 228 [2020-07-10 19:04:00,258 INFO L226 Difference]: Without dead ends: 100 [2020-07-10 19:04:00,263 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 [2020-07-10 19:04:00,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-10 19:04:00,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-10 19:04:00,362 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:00,363 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 100 states. [2020-07-10 19:04:00,364 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-10 19:04:00,364 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-10 19:04:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:00,373 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-10 19:04:00,373 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-10 19:04:00,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:00,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:00,375 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-10 19:04:00,375 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-10 19:04:00,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:00,383 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-10 19:04:00,383 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-10 19:04:00,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:00,385 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:00,385 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:00,385 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-10 19:04:00,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-07-10 19:04:00,393 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-07-10 19:04:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:00,394 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-07-10 19:04:00,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-10 19:04:00,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 103 transitions. [2020-07-10 19:04:00,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 103 edges. 103 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-10 19:04:00,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 19:04:00,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:00,527 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] [2020-07-10 19:04:00,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 19:04:00,528 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]=== [2020-07-10 19:04:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:00,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-07-10 19:04:00,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:00,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620949994] [2020-07-10 19:04:00,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:00,832 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 [2020-07-10 19:04:00,833 INFO L280 TraceCheckUtils]: 1: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-10 19:04:00,833 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-10 19:04:00,834 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-10 19:04:00,834 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-10 19:04:00,840 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 [2020-07-10 19:04:00,840 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 [2020-07-10 19:04:00,841 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-10 19:04:00,841 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-10 19:04:00,841 INFO L280 TraceCheckUtils]: 4: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-10 19:04:00,842 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-10 19:04:00,842 INFO L263 TraceCheckUtils]: 6: Hoare triple {992#true} call #t~ret21 := main(); {992#true} is VALID [2020-07-10 19:04:00,844 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 [2020-07-10 19:04:00,845 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 [2020-07-10 19:04:00,846 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 [2020-07-10 19:04:00,847 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 [2020-07-10 19:04:00,848 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 [2020-07-10 19:04:00,849 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 [2020-07-10 19:04:00,858 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 [2020-07-10 19:04:00,860 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 [2020-07-10 19:04:00,862 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 [2020-07-10 19:04:00,863 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 [2020-07-10 19:04:00,869 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 [2020-07-10 19:04:00,876 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 [2020-07-10 19:04:00,877 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 [2020-07-10 19:04:00,878 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 [2020-07-10 19:04:00,879 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 [2020-07-10 19:04:00,891 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 [2020-07-10 19:04:00,892 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 [2020-07-10 19:04:00,893 INFO L280 TraceCheckUtils]: 24: Hoare triple {993#false} assume !false; {993#false} is VALID [2020-07-10 19:04:00,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:00,896 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:00,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620949994] [2020-07-10 19:04:00,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:00,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-10 19:04:00,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829648828] [2020-07-10 19:04:00,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-10 19:04:00,900 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:00,900 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-10 19:04:00,937 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:00,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-10 19:04:00,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:00,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-10 19:04:00,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-10 19:04:00,939 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-07-10 19:04:02,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:02,328 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-07-10 19:04:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-10 19:04:02,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-10 19:04:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:02,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 19:04:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-10 19:04:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 19:04:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-10 19:04:02,335 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 126 transitions. [2020-07-10 19:04:02,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:02,531 INFO L225 Difference]: With dead ends: 121 [2020-07-10 19:04:02,531 INFO L226 Difference]: Without dead ends: 119 [2020-07-10 19:04:02,533 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 [2020-07-10 19:04:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-10 19:04:02,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-07-10 19:04:02,809 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:02,809 INFO L82 GeneralOperation]: Start isEquivalent. First operand 119 states. Second operand 98 states. [2020-07-10 19:04:02,809 INFO L74 IsIncluded]: Start isIncluded. First operand 119 states. Second operand 98 states. [2020-07-10 19:04:02,809 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 98 states. [2020-07-10 19:04:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:02,815 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-10 19:04:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-10 19:04:02,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:02,817 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:02,817 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 119 states. [2020-07-10 19:04:02,817 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 119 states. [2020-07-10 19:04:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:02,823 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-10 19:04:02,824 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-10 19:04:02,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:02,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:02,825 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:02,825 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-07-10 19:04:02,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-07-10 19:04:02,830 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-07-10 19:04:02,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:02,831 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-07-10 19:04:02,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-10 19:04:02,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 98 states and 101 transitions. [2020-07-10 19:04:02,984 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:02,984 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-07-10 19:04:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-10 19:04:02,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:02,986 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] [2020-07-10 19:04:02,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 19:04:02,987 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]=== [2020-07-10 19:04:02,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:02,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-07-10 19:04:02,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:02,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360745712] [2020-07-10 19:04:02,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:03,316 INFO L280 TraceCheckUtils]: 0: Hoare triple {1704#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-10 19:04:03,317 INFO L280 TraceCheckUtils]: 1: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-10 19:04:03,317 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-10 19:04:03,317 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-10 19:04:03,318 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-10 19:04:03,320 INFO L263 TraceCheckUtils]: 0: Hoare triple {1691#true} call ULTIMATE.init(); {1704#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:03,321 INFO L280 TraceCheckUtils]: 1: Hoare triple {1704#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {1691#true} is VALID [2020-07-10 19:04:03,321 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-10 19:04:03,321 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-10 19:04:03,321 INFO L280 TraceCheckUtils]: 4: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-10 19:04:03,321 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-10 19:04:03,322 INFO L263 TraceCheckUtils]: 6: Hoare triple {1691#true} call #t~ret21 := main(); {1691#true} is VALID [2020-07-10 19:04:03,322 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 [2020-07-10 19:04:03,323 INFO L280 TraceCheckUtils]: 8: Hoare triple {1698#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {1691#true} is VALID [2020-07-10 19:04:03,323 INFO L280 TraceCheckUtils]: 9: Hoare triple {1691#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {1691#true} is VALID [2020-07-10 19:04:03,323 INFO L280 TraceCheckUtils]: 10: Hoare triple {1691#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {1691#true} is VALID [2020-07-10 19:04:03,323 INFO L280 TraceCheckUtils]: 11: Hoare triple {1691#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {1691#true} is VALID [2020-07-10 19:04:03,324 INFO L280 TraceCheckUtils]: 12: Hoare triple {1691#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {1699#(= 0 |main_#t~malloc1.offset|)} is VALID [2020-07-10 19:04:03,325 INFO L280 TraceCheckUtils]: 13: Hoare triple {1699#(= 0 |main_#t~malloc1.offset|)} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {1700#(= 0 main_~list~0.offset)} is VALID [2020-07-10 19:04:03,325 INFO L280 TraceCheckUtils]: 14: Hoare triple {1700#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {1700#(= 0 main_~list~0.offset)} is VALID [2020-07-10 19:04:03,326 INFO L280 TraceCheckUtils]: 15: Hoare triple {1700#(= 0 main_~list~0.offset)} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {1700#(= 0 main_~list~0.offset)} is VALID [2020-07-10 19:04:03,327 INFO L280 TraceCheckUtils]: 16: Hoare triple {1700#(= 0 main_~list~0.offset)} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,328 INFO L280 TraceCheckUtils]: 17: Hoare triple {1701#(and (= 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; {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,329 INFO L280 TraceCheckUtils]: 18: Hoare triple {1701#(and (= 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; {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,330 INFO L280 TraceCheckUtils]: 19: Hoare triple {1701#(and (= 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); {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,331 INFO L280 TraceCheckUtils]: 20: Hoare triple {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,331 INFO L280 TraceCheckUtils]: 21: Hoare triple {1701#(and (= 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; {1701#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:03,332 INFO L280 TraceCheckUtils]: 22: Hoare triple {1701#(and (= 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; {1702#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:03,333 INFO L280 TraceCheckUtils]: 23: Hoare triple {1702#(= ~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); {1702#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:03,334 INFO L280 TraceCheckUtils]: 24: Hoare triple {1702#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {1702#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:03,334 INFO L280 TraceCheckUtils]: 25: Hoare triple {1702#(= ~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 {1703#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-10 19:04:03,335 INFO L280 TraceCheckUtils]: 26: Hoare triple {1703#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {1692#false} is VALID [2020-07-10 19:04:03,335 INFO L280 TraceCheckUtils]: 27: Hoare triple {1692#false} havoc #t~mem12; {1692#false} is VALID [2020-07-10 19:04:03,336 INFO L280 TraceCheckUtils]: 28: Hoare triple {1692#false} assume !false; {1692#false} is VALID [2020-07-10 19:04:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:03,338 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:03,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360745712] [2020-07-10 19:04:03,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:03,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 19:04:03,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998975799] [2020-07-10 19:04:03,340 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-07-10 19:04:03,340 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:03,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 19:04:03,378 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:03,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 19:04:03,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:03,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 19:04:03,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-10 19:04:03,380 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 9 states. [2020-07-10 19:04:05,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:05,224 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-07-10 19:04:05,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-10 19:04:05,224 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-07-10 19:04:05,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:05,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 19:04:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 152 transitions. [2020-07-10 19:04:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 19:04:05,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 152 transitions. [2020-07-10 19:04:05,231 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 152 transitions. [2020-07-10 19:04:05,446 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 152 edges. 152 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:05,450 INFO L225 Difference]: With dead ends: 146 [2020-07-10 19:04:05,450 INFO L226 Difference]: Without dead ends: 143 [2020-07-10 19:04:05,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-10 19:04:05,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-10 19:04:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-07-10 19:04:05,957 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:05,958 INFO L82 GeneralOperation]: Start isEquivalent. First operand 143 states. Second operand 107 states. [2020-07-10 19:04:05,958 INFO L74 IsIncluded]: Start isIncluded. First operand 143 states. Second operand 107 states. [2020-07-10 19:04:05,958 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 107 states. [2020-07-10 19:04:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:05,964 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2020-07-10 19:04:05,964 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 149 transitions. [2020-07-10 19:04:05,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:05,965 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:05,965 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 143 states. [2020-07-10 19:04:05,965 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 143 states. [2020-07-10 19:04:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:05,971 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2020-07-10 19:04:05,971 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 149 transitions. [2020-07-10 19:04:05,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:05,972 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:05,972 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:05,972 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-10 19:04:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-10 19:04:05,976 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-07-10 19:04:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:05,977 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-10 19:04:05,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 19:04:05,977 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-10 19:04:06,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-10 19:04:06,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-10 19:04:06,182 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:06,182 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] [2020-07-10 19:04:06,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 19:04:06,183 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]=== [2020-07-10 19:04:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:06,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-07-10 19:04:06,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:06,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645355284] [2020-07-10 19:04:06,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:06,413 INFO L280 TraceCheckUtils]: 0: Hoare triple {2523#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2513#true} is VALID [2020-07-10 19:04:06,413 INFO L280 TraceCheckUtils]: 1: Hoare triple {2513#true} #valid := #valid[0 := 0]; {2513#true} is VALID [2020-07-10 19:04:06,413 INFO L280 TraceCheckUtils]: 2: Hoare triple {2513#true} assume 0 < #StackHeapBarrier; {2513#true} is VALID [2020-07-10 19:04:06,413 INFO L280 TraceCheckUtils]: 3: Hoare triple {2513#true} assume true; {2513#true} is VALID [2020-07-10 19:04:06,414 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2513#true} {2513#true} #260#return; {2513#true} is VALID [2020-07-10 19:04:06,415 INFO L263 TraceCheckUtils]: 0: Hoare triple {2513#true} call ULTIMATE.init(); {2523#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:06,415 INFO L280 TraceCheckUtils]: 1: Hoare triple {2523#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {2513#true} is VALID [2020-07-10 19:04:06,415 INFO L280 TraceCheckUtils]: 2: Hoare triple {2513#true} #valid := #valid[0 := 0]; {2513#true} is VALID [2020-07-10 19:04:06,415 INFO L280 TraceCheckUtils]: 3: Hoare triple {2513#true} assume 0 < #StackHeapBarrier; {2513#true} is VALID [2020-07-10 19:04:06,416 INFO L280 TraceCheckUtils]: 4: Hoare triple {2513#true} assume true; {2513#true} is VALID [2020-07-10 19:04:06,416 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2513#true} {2513#true} #260#return; {2513#true} is VALID [2020-07-10 19:04:06,416 INFO L263 TraceCheckUtils]: 6: Hoare triple {2513#true} call #t~ret21 := main(); {2513#true} is VALID [2020-07-10 19:04:06,417 INFO L280 TraceCheckUtils]: 7: Hoare triple {2513#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {2513#true} is VALID [2020-07-10 19:04:06,417 INFO L280 TraceCheckUtils]: 8: Hoare triple {2513#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {2513#true} is VALID [2020-07-10 19:04:06,418 INFO L280 TraceCheckUtils]: 9: Hoare triple {2513#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {2513#true} is VALID [2020-07-10 19:04:06,418 INFO L280 TraceCheckUtils]: 10: Hoare triple {2513#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {2513#true} is VALID [2020-07-10 19:04:06,418 INFO L280 TraceCheckUtils]: 11: Hoare triple {2513#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {2513#true} is VALID [2020-07-10 19:04:06,419 INFO L280 TraceCheckUtils]: 12: Hoare triple {2513#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {2513#true} is VALID [2020-07-10 19:04:06,419 INFO L280 TraceCheckUtils]: 13: Hoare triple {2513#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {2513#true} is VALID [2020-07-10 19:04:06,419 INFO L280 TraceCheckUtils]: 14: Hoare triple {2513#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {2513#true} is VALID [2020-07-10 19:04:06,419 INFO L280 TraceCheckUtils]: 15: Hoare triple {2513#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {2513#true} is VALID [2020-07-10 19:04:06,420 INFO L280 TraceCheckUtils]: 16: Hoare triple {2513#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {2513#true} is VALID [2020-07-10 19:04:06,420 INFO L280 TraceCheckUtils]: 17: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2513#true} is VALID [2020-07-10 19:04:06,420 INFO L280 TraceCheckUtils]: 18: Hoare triple {2513#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2513#true} is VALID [2020-07-10 19:04:06,421 INFO L280 TraceCheckUtils]: 19: Hoare triple {2513#true} assume !(0 != #t~nondet2); {2513#true} is VALID [2020-07-10 19:04:06,421 INFO L280 TraceCheckUtils]: 20: Hoare triple {2513#true} havoc #t~nondet2; {2513#true} is VALID [2020-07-10 19:04:06,421 INFO L280 TraceCheckUtils]: 21: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {2513#true} is VALID [2020-07-10 19:04:06,421 INFO L280 TraceCheckUtils]: 22: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2513#true} is VALID [2020-07-10 19:04:06,422 INFO L280 TraceCheckUtils]: 23: Hoare triple {2513#true} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2513#true} is VALID [2020-07-10 19:04:06,422 INFO L280 TraceCheckUtils]: 24: Hoare triple {2513#true} goto; {2513#true} is VALID [2020-07-10 19:04:06,423 INFO L280 TraceCheckUtils]: 25: Hoare triple {2513#true} SUMMARY for call #t~mem12 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1031-6 {2520#(= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:06,424 INFO L280 TraceCheckUtils]: 26: Hoare triple {2520#(= |main_#t~mem12| (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} assume !!(~unnamed1~0~BLACK == #t~mem12); {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:06,425 INFO L280 TraceCheckUtils]: 27: Hoare triple {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} havoc #t~mem12; {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:06,425 INFO L280 TraceCheckUtils]: 28: Hoare triple {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:06,432 INFO L280 TraceCheckUtils]: 29: Hoare triple {2521#(= ~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); {2521#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:06,433 INFO L280 TraceCheckUtils]: 30: Hoare triple {2521#(= ~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 {2522#(= ~unnamed1~0~BLACK |main_#t~mem13|)} is VALID [2020-07-10 19:04:06,434 INFO L280 TraceCheckUtils]: 31: Hoare triple {2522#(= ~unnamed1~0~BLACK |main_#t~mem13|)} assume ~unnamed1~0~RED == #t~mem13; {2514#false} is VALID [2020-07-10 19:04:06,434 INFO L280 TraceCheckUtils]: 32: Hoare triple {2514#false} havoc #t~mem13; {2514#false} is VALID [2020-07-10 19:04:06,435 INFO L280 TraceCheckUtils]: 33: Hoare triple {2514#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {2514#false} is VALID [2020-07-10 19:04:06,435 INFO L280 TraceCheckUtils]: 34: Hoare triple {2514#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {2514#false} is VALID [2020-07-10 19:04:06,435 INFO L280 TraceCheckUtils]: 35: Hoare triple {2514#false} havoc #t~mem14.base, #t~mem14.offset; {2514#false} is VALID [2020-07-10 19:04:06,436 INFO L280 TraceCheckUtils]: 36: Hoare triple {2514#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {2514#false} is VALID [2020-07-10 19:04:06,436 INFO L280 TraceCheckUtils]: 37: Hoare triple {2514#false} assume !false; {2514#false} is VALID [2020-07-10 19:04:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:06,438 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:06,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645355284] [2020-07-10 19:04:06,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:06,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 19:04:06,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341394918] [2020-07-10 19:04:06,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-10 19:04:06,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:06,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 19:04:06,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:06,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 19:04:06,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:06,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 19:04:06,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 19:04:06,486 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-07-10 19:04:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:07,689 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2020-07-10 19:04:07,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-10 19:04:07,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-10 19:04:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 19:04:07,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-10 19:04:07,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 19:04:07,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-10 19:04:07,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 141 transitions. [2020-07-10 19:04:07,835 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:07,838 INFO L225 Difference]: With dead ends: 140 [2020-07-10 19:04:07,838 INFO L226 Difference]: Without dead ends: 118 [2020-07-10 19:04:07,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-10 19:04:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-07-10 19:04:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2020-07-10 19:04:08,288 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:08,288 INFO L82 GeneralOperation]: Start isEquivalent. First operand 118 states. Second operand 110 states. [2020-07-10 19:04:08,288 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 110 states. [2020-07-10 19:04:08,288 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 110 states. [2020-07-10 19:04:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:08,293 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-10 19:04:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-10 19:04:08,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:08,294 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:08,294 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 118 states. [2020-07-10 19:04:08,295 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 118 states. [2020-07-10 19:04:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:08,299 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-10 19:04:08,299 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-10 19:04:08,300 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:08,300 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:08,300 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:08,300 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:08,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-10 19:04:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-07-10 19:04:08,304 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 38 [2020-07-10 19:04:08,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:08,305 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-07-10 19:04:08,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 19:04:08,305 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 114 transitions. [2020-07-10 19:04:08,559 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-07-10 19:04:08,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-10 19:04:08,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:08,561 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] [2020-07-10 19:04:08,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-10 19:04:08,561 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]=== [2020-07-10 19:04:08,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:08,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-07-10 19:04:08,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:08,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076600828] [2020-07-10 19:04:08,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:08,643 INFO L280 TraceCheckUtils]: 0: Hoare triple {3275#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3266#true} is VALID [2020-07-10 19:04:08,643 INFO L280 TraceCheckUtils]: 1: Hoare triple {3266#true} #valid := #valid[0 := 0]; {3266#true} is VALID [2020-07-10 19:04:08,643 INFO L280 TraceCheckUtils]: 2: Hoare triple {3266#true} assume 0 < #StackHeapBarrier; {3266#true} is VALID [2020-07-10 19:04:08,644 INFO L280 TraceCheckUtils]: 3: Hoare triple {3266#true} assume true; {3266#true} is VALID [2020-07-10 19:04:08,644 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3266#true} {3266#true} #260#return; {3266#true} is VALID [2020-07-10 19:04:08,646 INFO L263 TraceCheckUtils]: 0: Hoare triple {3266#true} call ULTIMATE.init(); {3275#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:08,646 INFO L280 TraceCheckUtils]: 1: Hoare triple {3275#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3266#true} is VALID [2020-07-10 19:04:08,647 INFO L280 TraceCheckUtils]: 2: Hoare triple {3266#true} #valid := #valid[0 := 0]; {3266#true} is VALID [2020-07-10 19:04:08,647 INFO L280 TraceCheckUtils]: 3: Hoare triple {3266#true} assume 0 < #StackHeapBarrier; {3266#true} is VALID [2020-07-10 19:04:08,648 INFO L280 TraceCheckUtils]: 4: Hoare triple {3266#true} assume true; {3266#true} is VALID [2020-07-10 19:04:08,648 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3266#true} {3266#true} #260#return; {3266#true} is VALID [2020-07-10 19:04:08,648 INFO L263 TraceCheckUtils]: 6: Hoare triple {3266#true} call #t~ret21 := main(); {3266#true} is VALID [2020-07-10 19:04:08,649 INFO L280 TraceCheckUtils]: 7: Hoare triple {3266#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {3266#true} is VALID [2020-07-10 19:04:08,649 INFO L280 TraceCheckUtils]: 8: Hoare triple {3266#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3266#true} is VALID [2020-07-10 19:04:08,649 INFO L280 TraceCheckUtils]: 9: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {3266#true} is VALID [2020-07-10 19:04:08,650 INFO L280 TraceCheckUtils]: 10: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {3266#true} is VALID [2020-07-10 19:04:08,650 INFO L280 TraceCheckUtils]: 11: Hoare triple {3266#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {3266#true} is VALID [2020-07-10 19:04:08,650 INFO L280 TraceCheckUtils]: 12: Hoare triple {3266#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {3266#true} is VALID [2020-07-10 19:04:08,650 INFO L280 TraceCheckUtils]: 13: Hoare triple {3266#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3266#true} is VALID [2020-07-10 19:04:08,651 INFO L280 TraceCheckUtils]: 14: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {3266#true} is VALID [2020-07-10 19:04:08,651 INFO L280 TraceCheckUtils]: 15: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {3266#true} is VALID [2020-07-10 19:04:08,651 INFO L280 TraceCheckUtils]: 16: Hoare triple {3266#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {3266#true} is VALID [2020-07-10 19:04:08,651 INFO L280 TraceCheckUtils]: 17: Hoare triple {3266#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3266#true} is VALID [2020-07-10 19:04:08,652 INFO L280 TraceCheckUtils]: 18: Hoare triple {3266#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3266#true} is VALID [2020-07-10 19:04:08,652 INFO L280 TraceCheckUtils]: 19: Hoare triple {3266#true} assume !!(0 != #t~nondet2); {3266#true} is VALID [2020-07-10 19:04:08,652 INFO L280 TraceCheckUtils]: 20: Hoare triple {3266#true} havoc #t~nondet2; {3266#true} is VALID [2020-07-10 19:04:08,653 INFO L280 TraceCheckUtils]: 21: Hoare triple {3266#true} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {3266#true} is VALID [2020-07-10 19:04:08,653 INFO L280 TraceCheckUtils]: 22: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {3266#true} is VALID [2020-07-10 19:04:08,653 INFO L280 TraceCheckUtils]: 23: Hoare triple {3266#true} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {3266#true} is VALID [2020-07-10 19:04:08,653 INFO L280 TraceCheckUtils]: 24: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {3266#true} is VALID [2020-07-10 19:04:08,654 INFO L280 TraceCheckUtils]: 25: Hoare triple {3266#true} havoc #t~mem4.base, #t~mem4.offset; {3266#true} is VALID [2020-07-10 19:04:08,654 INFO L280 TraceCheckUtils]: 26: Hoare triple {3266#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {3266#true} is VALID [2020-07-10 19:04:08,654 INFO L280 TraceCheckUtils]: 27: Hoare triple {3266#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3266#true} is VALID [2020-07-10 19:04:08,654 INFO L280 TraceCheckUtils]: 28: Hoare triple {3266#true} havoc #t~mem5.base, #t~mem5.offset; {3266#true} is VALID [2020-07-10 19:04:08,655 INFO L280 TraceCheckUtils]: 29: Hoare triple {3266#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {3266#true} is VALID [2020-07-10 19:04:08,655 INFO L280 TraceCheckUtils]: 30: Hoare triple {3266#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {3266#true} is VALID [2020-07-10 19:04:08,655 INFO L280 TraceCheckUtils]: 31: Hoare triple {3266#true} assume 0 != #t~nondet6; {3266#true} is VALID [2020-07-10 19:04:08,655 INFO L280 TraceCheckUtils]: 32: Hoare triple {3266#true} havoc #t~nondet6; {3266#true} is VALID [2020-07-10 19:04:08,657 INFO L280 TraceCheckUtils]: 33: Hoare triple {3266#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {3273#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:08,658 INFO L280 TraceCheckUtils]: 34: Hoare triple {3273#(= ~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 {3274#(= ~unnamed1~0~BLACK |main_#t~mem10|)} is VALID [2020-07-10 19:04:08,659 INFO L280 TraceCheckUtils]: 35: Hoare triple {3274#(= ~unnamed1~0~BLACK |main_#t~mem10|)} assume !(~unnamed1~0~BLACK == #t~mem10); {3267#false} is VALID [2020-07-10 19:04:08,659 INFO L280 TraceCheckUtils]: 36: Hoare triple {3267#false} havoc #t~mem10; {3267#false} is VALID [2020-07-10 19:04:08,659 INFO L280 TraceCheckUtils]: 37: Hoare triple {3267#false} assume !false; {3267#false} is VALID [2020-07-10 19:04:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:08,661 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:08,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076600828] [2020-07-10 19:04:08,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:08,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 19:04:08,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716280391] [2020-07-10 19:04:08,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-10 19:04:08,663 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:08,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 19:04:08,706 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:08,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 19:04:08,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:08,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 19:04:08,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 19:04:08,707 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 5 states. [2020-07-10 19:04:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:09,670 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2020-07-10 19:04:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 19:04:09,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-10 19:04:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:09,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-10 19:04:09,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-10 19:04:09,678 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 111 transitions. [2020-07-10 19:04:09,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:09,815 INFO L225 Difference]: With dead ends: 115 [2020-07-10 19:04:09,815 INFO L226 Difference]: Without dead ends: 112 [2020-07-10 19:04:09,816 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 [2020-07-10 19:04:09,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-10 19:04:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-07-10 19:04:10,267 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:10,267 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 107 states. [2020-07-10 19:04:10,268 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 107 states. [2020-07-10 19:04:10,268 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 107 states. [2020-07-10 19:04:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:10,272 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-10 19:04:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-10 19:04:10,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:10,273 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:10,273 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 112 states. [2020-07-10 19:04:10,273 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 112 states. [2020-07-10 19:04:10,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:10,278 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-10 19:04:10,278 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-10 19:04:10,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:10,278 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:10,279 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:10,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-10 19:04:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-10 19:04:10,284 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 38 [2020-07-10 19:04:10,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:10,285 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-10 19:04:10,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 19:04:10,285 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-10 19:04:10,512 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-10 19:04:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-10 19:04:10,514 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:10,514 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] [2020-07-10 19:04:10,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-10 19:04:10,514 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]=== [2020-07-10 19:04:10,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:10,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-07-10 19:04:10,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:10,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368123678] [2020-07-10 19:04:10,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:10,641 INFO L280 TraceCheckUtils]: 0: Hoare triple {3957#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3948#true} is VALID [2020-07-10 19:04:10,641 INFO L280 TraceCheckUtils]: 1: Hoare triple {3948#true} #valid := #valid[0 := 0]; {3948#true} is VALID [2020-07-10 19:04:10,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {3948#true} assume 0 < #StackHeapBarrier; {3948#true} is VALID [2020-07-10 19:04:10,642 INFO L280 TraceCheckUtils]: 3: Hoare triple {3948#true} assume true; {3948#true} is VALID [2020-07-10 19:04:10,642 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3948#true} {3948#true} #260#return; {3948#true} is VALID [2020-07-10 19:04:10,643 INFO L263 TraceCheckUtils]: 0: Hoare triple {3948#true} call ULTIMATE.init(); {3957#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:10,644 INFO L280 TraceCheckUtils]: 1: Hoare triple {3957#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {3948#true} is VALID [2020-07-10 19:04:10,644 INFO L280 TraceCheckUtils]: 2: Hoare triple {3948#true} #valid := #valid[0 := 0]; {3948#true} is VALID [2020-07-10 19:04:10,644 INFO L280 TraceCheckUtils]: 3: Hoare triple {3948#true} assume 0 < #StackHeapBarrier; {3948#true} is VALID [2020-07-10 19:04:10,644 INFO L280 TraceCheckUtils]: 4: Hoare triple {3948#true} assume true; {3948#true} is VALID [2020-07-10 19:04:10,645 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3948#true} {3948#true} #260#return; {3948#true} is VALID [2020-07-10 19:04:10,645 INFO L263 TraceCheckUtils]: 6: Hoare triple {3948#true} call #t~ret21 := main(); {3948#true} is VALID [2020-07-10 19:04:10,645 INFO L280 TraceCheckUtils]: 7: Hoare triple {3948#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {3948#true} is VALID [2020-07-10 19:04:10,646 INFO L280 TraceCheckUtils]: 8: Hoare triple {3948#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3948#true} is VALID [2020-07-10 19:04:10,646 INFO L280 TraceCheckUtils]: 9: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {3948#true} is VALID [2020-07-10 19:04:10,646 INFO L280 TraceCheckUtils]: 10: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {3948#true} is VALID [2020-07-10 19:04:10,646 INFO L280 TraceCheckUtils]: 11: Hoare triple {3948#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {3948#true} is VALID [2020-07-10 19:04:10,647 INFO L280 TraceCheckUtils]: 12: Hoare triple {3948#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {3948#true} is VALID [2020-07-10 19:04:10,647 INFO L280 TraceCheckUtils]: 13: Hoare triple {3948#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3948#true} is VALID [2020-07-10 19:04:10,647 INFO L280 TraceCheckUtils]: 14: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {3948#true} is VALID [2020-07-10 19:04:10,647 INFO L280 TraceCheckUtils]: 15: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {3948#true} is VALID [2020-07-10 19:04:10,648 INFO L280 TraceCheckUtils]: 16: Hoare triple {3948#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~list~0.base, 8 + ~list~0.offset, 4); srcloc: L994 {3948#true} is VALID [2020-07-10 19:04:10,648 INFO L280 TraceCheckUtils]: 17: Hoare triple {3948#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3948#true} is VALID [2020-07-10 19:04:10,648 INFO L280 TraceCheckUtils]: 18: Hoare triple {3948#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3948#true} is VALID [2020-07-10 19:04:10,648 INFO L280 TraceCheckUtils]: 19: Hoare triple {3948#true} assume !!(0 != #t~nondet2); {3948#true} is VALID [2020-07-10 19:04:10,649 INFO L280 TraceCheckUtils]: 20: Hoare triple {3948#true} havoc #t~nondet2; {3948#true} is VALID [2020-07-10 19:04:10,649 INFO L280 TraceCheckUtils]: 21: Hoare triple {3948#true} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {3948#true} is VALID [2020-07-10 19:04:10,649 INFO L280 TraceCheckUtils]: 22: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {3948#true} is VALID [2020-07-10 19:04:10,650 INFO L280 TraceCheckUtils]: 23: Hoare triple {3948#true} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {3948#true} is VALID [2020-07-10 19:04:10,650 INFO L280 TraceCheckUtils]: 24: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {3948#true} is VALID [2020-07-10 19:04:10,650 INFO L280 TraceCheckUtils]: 25: Hoare triple {3948#true} havoc #t~mem4.base, #t~mem4.offset; {3948#true} is VALID [2020-07-10 19:04:10,654 INFO L280 TraceCheckUtils]: 26: Hoare triple {3948#true} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {3948#true} is VALID [2020-07-10 19:04:10,655 INFO L280 TraceCheckUtils]: 27: Hoare triple {3948#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3948#true} is VALID [2020-07-10 19:04:10,655 INFO L280 TraceCheckUtils]: 28: Hoare triple {3948#true} havoc #t~mem5.base, #t~mem5.offset; {3948#true} is VALID [2020-07-10 19:04:10,659 INFO L280 TraceCheckUtils]: 29: Hoare triple {3948#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {3955#(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 [2020-07-10 19:04:10,661 INFO L280 TraceCheckUtils]: 30: Hoare triple {3955#(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; {3955#(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 [2020-07-10 19:04:10,662 INFO L280 TraceCheckUtils]: 31: Hoare triple {3955#(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; {3955#(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 [2020-07-10 19:04:10,663 INFO L280 TraceCheckUtils]: 32: Hoare triple {3955#(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; {3955#(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 [2020-07-10 19:04:10,664 INFO L280 TraceCheckUtils]: 33: Hoare triple {3955#(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 {3955#(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 [2020-07-10 19:04:10,665 INFO L280 TraceCheckUtils]: 34: Hoare triple {3955#(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 {3955#(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 [2020-07-10 19:04:10,666 INFO L280 TraceCheckUtils]: 35: Hoare triple {3955#(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); {3955#(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 [2020-07-10 19:04:10,668 INFO L280 TraceCheckUtils]: 36: Hoare triple {3955#(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; {3955#(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 [2020-07-10 19:04:10,669 INFO L280 TraceCheckUtils]: 37: Hoare triple {3955#(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; {3955#(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 [2020-07-10 19:04:10,670 INFO L280 TraceCheckUtils]: 38: Hoare triple {3955#(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 {3956#(and (= |main_#t~mem11.offset| main_~null~0.offset) (= |main_#t~mem11.base| main_~null~0.base))} is VALID [2020-07-10 19:04:10,671 INFO L280 TraceCheckUtils]: 39: Hoare triple {3956#(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); {3949#false} is VALID [2020-07-10 19:04:10,671 INFO L280 TraceCheckUtils]: 40: Hoare triple {3949#false} havoc #t~mem11.base, #t~mem11.offset; {3949#false} is VALID [2020-07-10 19:04:10,671 INFO L280 TraceCheckUtils]: 41: Hoare triple {3949#false} assume !false; {3949#false} is VALID [2020-07-10 19:04:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:10,675 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:10,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368123678] [2020-07-10 19:04:10,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:10,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 19:04:10,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946948490] [2020-07-10 19:04:10,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-10 19:04:10,677 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:10,678 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 19:04:10,727 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:10,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 19:04:10,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 19:04:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 19:04:10,729 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 5 states. [2020-07-10 19:04:11,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:11,797 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2020-07-10 19:04:11,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 19:04:11,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-10 19:04:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:11,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-10 19:04:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 19:04:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-10 19:04:11,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 106 transitions. [2020-07-10 19:04:11,940 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:11,943 INFO L225 Difference]: With dead ends: 110 [2020-07-10 19:04:11,943 INFO L226 Difference]: Without dead ends: 107 [2020-07-10 19:04:11,944 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 [2020-07-10 19:04:11,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-10 19:04:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2020-07-10 19:04:12,365 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:12,366 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 104 states. [2020-07-10 19:04:12,366 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 104 states. [2020-07-10 19:04:12,366 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 104 states. [2020-07-10 19:04:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:12,370 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-10 19:04:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-10 19:04:12,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:12,371 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:12,371 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 107 states. [2020-07-10 19:04:12,371 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 107 states. [2020-07-10 19:04:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:12,376 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-10 19:04:12,376 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-10 19:04:12,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:12,376 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:12,377 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:12,377 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-10 19:04:12,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-07-10 19:04:12,380 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 42 [2020-07-10 19:04:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:12,381 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-07-10 19:04:12,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 19:04:12,381 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 108 transitions. [2020-07-10 19:04:12,631 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-07-10 19:04:12,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-10 19:04:12,633 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:12,633 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] [2020-07-10 19:04:12,633 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-10 19:04:12,634 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]=== [2020-07-10 19:04:12,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:12,634 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-07-10 19:04:12,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:12,635 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [460713050] [2020-07-10 19:04:12,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:13,049 INFO L280 TraceCheckUtils]: 0: Hoare triple {4622#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4604#true} is VALID [2020-07-10 19:04:13,050 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} #valid := #valid[0 := 0]; {4604#true} is VALID [2020-07-10 19:04:13,051 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume 0 < #StackHeapBarrier; {4604#true} is VALID [2020-07-10 19:04:13,051 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-10 19:04:13,051 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4604#true} {4604#true} #260#return; {4604#true} is VALID [2020-07-10 19:04:13,053 INFO L263 TraceCheckUtils]: 0: Hoare triple {4604#true} call ULTIMATE.init(); {4622#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:13,053 INFO L280 TraceCheckUtils]: 1: Hoare triple {4622#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {4604#true} is VALID [2020-07-10 19:04:13,054 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} #valid := #valid[0 := 0]; {4604#true} is VALID [2020-07-10 19:04:13,054 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume 0 < #StackHeapBarrier; {4604#true} is VALID [2020-07-10 19:04:13,054 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-10 19:04:13,054 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4604#true} {4604#true} #260#return; {4604#true} is VALID [2020-07-10 19:04:13,055 INFO L263 TraceCheckUtils]: 6: Hoare triple {4604#true} call #t~ret21 := main(); {4604#true} is VALID [2020-07-10 19:04:13,057 INFO L280 TraceCheckUtils]: 7: Hoare triple {4604#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {4611#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-10 19:04:13,059 INFO L280 TraceCheckUtils]: 8: Hoare triple {4611#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {4612#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:13,060 INFO L280 TraceCheckUtils]: 9: Hoare triple {4612#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {4612#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:13,060 INFO L280 TraceCheckUtils]: 10: Hoare triple {4612#(= 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 {4612#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:13,061 INFO L280 TraceCheckUtils]: 11: Hoare triple {4612#(= 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 {4612#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:13,063 INFO L280 TraceCheckUtils]: 12: Hoare triple {4612#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {4613#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,064 INFO L280 TraceCheckUtils]: 13: Hoare triple {4613#(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; {4614#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,066 INFO L280 TraceCheckUtils]: 14: Hoare triple {4614#(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 {4614#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,068 INFO L280 TraceCheckUtils]: 15: Hoare triple {4614#(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 {4614#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,069 INFO L280 TraceCheckUtils]: 16: Hoare triple {4614#(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 {4614#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,070 INFO L280 TraceCheckUtils]: 17: Hoare triple {4614#(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; {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:13,071 INFO L280 TraceCheckUtils]: 18: Hoare triple {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:13,072 INFO L280 TraceCheckUtils]: 19: Hoare triple {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:13,073 INFO L280 TraceCheckUtils]: 20: Hoare triple {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {4615#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:13,074 INFO L280 TraceCheckUtils]: 21: Hoare triple {4615#(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 {4616#(and (not (= |main_#t~malloc3.base| main_~end~0.base)) (not (= |main_#t~malloc3.base| main_~null~0.base)))} is VALID [2020-07-10 19:04:13,076 INFO L280 TraceCheckUtils]: 22: Hoare triple {4616#(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 {4617#(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 [2020-07-10 19:04:13,078 INFO L280 TraceCheckUtils]: 23: Hoare triple {4617#(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 {4618#(and (not (= |main_#t~mem4.base| main_~end~0.base)) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)))} is VALID [2020-07-10 19:04:13,083 INFO L280 TraceCheckUtils]: 24: Hoare triple {4618#(and (not (= |main_#t~mem4.base| 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 write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {4619#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:13,087 INFO L280 TraceCheckUtils]: 25: Hoare triple {4619#(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; {4619#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:13,089 INFO L280 TraceCheckUtils]: 26: Hoare triple {4619#(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 {4620#(not (= |main_#t~mem5.base| main_~null~0.base))} is VALID [2020-07-10 19:04:13,090 INFO L280 TraceCheckUtils]: 27: Hoare triple {4620#(not (= |main_#t~mem5.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,091 INFO L280 TraceCheckUtils]: 28: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem5.base, #t~mem5.offset; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,091 INFO L280 TraceCheckUtils]: 29: Hoare triple {4621#(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 {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,092 INFO L280 TraceCheckUtils]: 30: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,093 INFO L280 TraceCheckUtils]: 31: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} assume 0 != #t~nondet6; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,093 INFO L280 TraceCheckUtils]: 32: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} havoc #t~nondet6; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,094 INFO L280 TraceCheckUtils]: 33: Hoare triple {4621#(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 {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,095 INFO L280 TraceCheckUtils]: 34: Hoare triple {4621#(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 {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,095 INFO L280 TraceCheckUtils]: 35: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,096 INFO L280 TraceCheckUtils]: 36: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,097 INFO L280 TraceCheckUtils]: 37: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} goto; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,097 INFO L280 TraceCheckUtils]: 38: Hoare triple {4621#(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 {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,098 INFO L280 TraceCheckUtils]: 39: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,099 INFO L280 TraceCheckUtils]: 40: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,099 INFO L280 TraceCheckUtils]: 41: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} goto; {4621#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:13,100 INFO L280 TraceCheckUtils]: 42: Hoare triple {4621#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {4605#false} is VALID [2020-07-10 19:04:13,100 INFO L280 TraceCheckUtils]: 43: Hoare triple {4605#false} assume !false; {4605#false} is VALID [2020-07-10 19:04:13,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:13,104 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:13,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [460713050] [2020-07-10 19:04:13,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:13,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-10 19:04:13,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002248082] [2020-07-10 19:04:13,106 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-10 19:04:13,106 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:13,106 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-10 19:04:13,161 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:13,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-10 19:04:13,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:13,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-10 19:04:13,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-10 19:04:13,162 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 14 states. [2020-07-10 19:04:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:16,386 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2020-07-10 19:04:16,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-10 19:04:16,386 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-10 19:04:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:16,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-10 19:04:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-10 19:04:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-10 19:04:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-10 19:04:16,401 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 155 transitions. [2020-07-10 19:04:16,612 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 155 edges. 155 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:16,616 INFO L225 Difference]: With dead ends: 154 [2020-07-10 19:04:16,616 INFO L226 Difference]: Without dead ends: 152 [2020-07-10 19:04:16,617 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-07-10 19:04:16,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-10 19:04:17,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-07-10 19:04:17,280 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:17,280 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states. Second operand 127 states. [2020-07-10 19:04:17,280 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states. Second operand 127 states. [2020-07-10 19:04:17,280 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 127 states. [2020-07-10 19:04:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:17,284 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-10 19:04:17,284 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-10 19:04:17,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:17,285 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:17,285 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 152 states. [2020-07-10 19:04:17,285 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 152 states. [2020-07-10 19:04:17,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:17,290 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-10 19:04:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-10 19:04:17,291 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:17,291 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:17,291 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:17,292 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:17,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-10 19:04:17,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2020-07-10 19:04:17,296 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 44 [2020-07-10 19:04:17,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:17,296 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2020-07-10 19:04:17,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-10 19:04:17,296 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 127 states and 132 transitions. [2020-07-10 19:04:17,587 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2020-07-10 19:04:17,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-10 19:04:17,588 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:17,589 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] [2020-07-10 19:04:17,589 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-10 19:04:17,589 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]=== [2020-07-10 19:04:17,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:17,591 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-07-10 19:04:17,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:17,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310692847] [2020-07-10 19:04:17,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:17,828 INFO L280 TraceCheckUtils]: 0: Hoare triple {5522#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5511#true} is VALID [2020-07-10 19:04:17,829 INFO L280 TraceCheckUtils]: 1: Hoare triple {5511#true} #valid := #valid[0 := 0]; {5511#true} is VALID [2020-07-10 19:04:17,829 INFO L280 TraceCheckUtils]: 2: Hoare triple {5511#true} assume 0 < #StackHeapBarrier; {5511#true} is VALID [2020-07-10 19:04:17,829 INFO L280 TraceCheckUtils]: 3: Hoare triple {5511#true} assume true; {5511#true} is VALID [2020-07-10 19:04:17,829 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5511#true} {5511#true} #260#return; {5511#true} is VALID [2020-07-10 19:04:17,833 INFO L263 TraceCheckUtils]: 0: Hoare triple {5511#true} call ULTIMATE.init(); {5522#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:17,833 INFO L280 TraceCheckUtils]: 1: Hoare triple {5522#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {5511#true} is VALID [2020-07-10 19:04:17,834 INFO L280 TraceCheckUtils]: 2: Hoare triple {5511#true} #valid := #valid[0 := 0]; {5511#true} is VALID [2020-07-10 19:04:17,834 INFO L280 TraceCheckUtils]: 3: Hoare triple {5511#true} assume 0 < #StackHeapBarrier; {5511#true} is VALID [2020-07-10 19:04:17,834 INFO L280 TraceCheckUtils]: 4: Hoare triple {5511#true} assume true; {5511#true} is VALID [2020-07-10 19:04:17,834 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5511#true} {5511#true} #260#return; {5511#true} is VALID [2020-07-10 19:04:17,835 INFO L263 TraceCheckUtils]: 6: Hoare triple {5511#true} call #t~ret21 := main(); {5511#true} is VALID [2020-07-10 19:04:17,835 INFO L280 TraceCheckUtils]: 7: Hoare triple {5511#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {5511#true} is VALID [2020-07-10 19:04:17,835 INFO L280 TraceCheckUtils]: 8: Hoare triple {5511#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {5511#true} is VALID [2020-07-10 19:04:17,836 INFO L280 TraceCheckUtils]: 9: Hoare triple {5511#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {5511#true} is VALID [2020-07-10 19:04:17,837 INFO L280 TraceCheckUtils]: 10: Hoare triple {5511#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {5511#true} is VALID [2020-07-10 19:04:17,837 INFO L280 TraceCheckUtils]: 11: Hoare triple {5511#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {5511#true} is VALID [2020-07-10 19:04:17,837 INFO L280 TraceCheckUtils]: 12: Hoare triple {5511#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {5511#true} is VALID [2020-07-10 19:04:17,837 INFO L280 TraceCheckUtils]: 13: Hoare triple {5511#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {5511#true} is VALID [2020-07-10 19:04:17,839 INFO L280 TraceCheckUtils]: 14: Hoare triple {5511#true} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {5518#(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 [2020-07-10 19:04:17,847 INFO L280 TraceCheckUtils]: 15: Hoare triple {5518#(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 {5518#(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 [2020-07-10 19:04:17,851 INFO L280 TraceCheckUtils]: 16: Hoare triple {5518#(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 {5518#(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 [2020-07-10 19:04:17,852 INFO L280 TraceCheckUtils]: 17: Hoare triple {5518#(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; {5518#(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 [2020-07-10 19:04:17,854 INFO L280 TraceCheckUtils]: 18: Hoare triple {5518#(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; {5518#(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 [2020-07-10 19:04:17,855 INFO L280 TraceCheckUtils]: 19: Hoare triple {5518#(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); {5518#(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 [2020-07-10 19:04:17,856 INFO L280 TraceCheckUtils]: 20: Hoare triple {5518#(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; {5518#(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 [2020-07-10 19:04:17,857 INFO L280 TraceCheckUtils]: 21: Hoare triple {5518#(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; {5518#(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 [2020-07-10 19:04:17,858 INFO L280 TraceCheckUtils]: 22: Hoare triple {5518#(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; {5519#(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 [2020-07-10 19:04:17,859 INFO L280 TraceCheckUtils]: 23: Hoare triple {5519#(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); {5519#(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 [2020-07-10 19:04:17,860 INFO L280 TraceCheckUtils]: 24: Hoare triple {5519#(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; {5519#(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 [2020-07-10 19:04:17,861 INFO L280 TraceCheckUtils]: 25: Hoare triple {5519#(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 {5519#(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 [2020-07-10 19:04:17,862 INFO L280 TraceCheckUtils]: 26: Hoare triple {5519#(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); {5519#(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 [2020-07-10 19:04:17,862 INFO L280 TraceCheckUtils]: 27: Hoare triple {5519#(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; {5519#(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 [2020-07-10 19:04:17,864 INFO L280 TraceCheckUtils]: 28: Hoare triple {5519#(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; {5519#(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 [2020-07-10 19:04:17,865 INFO L280 TraceCheckUtils]: 29: Hoare triple {5519#(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); {5519#(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 [2020-07-10 19:04:17,867 INFO L280 TraceCheckUtils]: 30: Hoare triple {5519#(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 {5519#(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 [2020-07-10 19:04:17,867 INFO L280 TraceCheckUtils]: 31: Hoare triple {5519#(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); {5519#(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 [2020-07-10 19:04:17,868 INFO L280 TraceCheckUtils]: 32: Hoare triple {5519#(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; {5519#(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 [2020-07-10 19:04:17,869 INFO L280 TraceCheckUtils]: 33: Hoare triple {5519#(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 {5520#(and (= |main_#t~mem16.offset| main_~null~0.offset) (= |main_#t~mem16.base| main_~null~0.base))} is VALID [2020-07-10 19:04:17,870 INFO L280 TraceCheckUtils]: 34: Hoare triple {5520#(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; {5521#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:17,871 INFO L280 TraceCheckUtils]: 35: Hoare triple {5521#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} havoc #t~mem16.base, #t~mem16.offset; {5521#(and (= main_~end~0.offset main_~null~0.offset) (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:17,871 INFO L280 TraceCheckUtils]: 36: Hoare triple {5521#(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); {5512#false} is VALID [2020-07-10 19:04:17,871 INFO L280 TraceCheckUtils]: 37: Hoare triple {5512#false} SUMMARY for call #t~mem13 := read~int(~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1034 {5512#false} is VALID [2020-07-10 19:04:17,872 INFO L280 TraceCheckUtils]: 38: Hoare triple {5512#false} assume ~unnamed1~0~RED == #t~mem13; {5512#false} is VALID [2020-07-10 19:04:17,872 INFO L280 TraceCheckUtils]: 39: Hoare triple {5512#false} havoc #t~mem13; {5512#false} is VALID [2020-07-10 19:04:17,872 INFO L280 TraceCheckUtils]: 40: Hoare triple {5512#false} SUMMARY for call #t~mem14.base, #t~mem14.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1036 {5512#false} is VALID [2020-07-10 19:04:17,872 INFO L280 TraceCheckUtils]: 41: Hoare triple {5512#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {5512#false} is VALID [2020-07-10 19:04:17,873 INFO L280 TraceCheckUtils]: 42: Hoare triple {5512#false} havoc #t~mem14.base, #t~mem14.offset; {5512#false} is VALID [2020-07-10 19:04:17,873 INFO L280 TraceCheckUtils]: 43: Hoare triple {5512#false} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {5512#false} is VALID [2020-07-10 19:04:17,873 INFO L280 TraceCheckUtils]: 44: Hoare triple {5512#false} assume !false; {5512#false} is VALID [2020-07-10 19:04:17,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:17,879 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:17,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310692847] [2020-07-10 19:04:17,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:17,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 19:04:17,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28068682] [2020-07-10 19:04:17,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-10 19:04:17,882 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:17,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 19:04:17,934 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:17,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 19:04:17,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 19:04:17,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-10 19:04:17,935 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 7 states. [2020-07-10 19:04:19,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:19,771 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2020-07-10 19:04:19,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-10 19:04:19,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-10 19:04:19,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 19:04:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-10 19:04:19,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 19:04:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-10 19:04:19,779 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 141 transitions. [2020-07-10 19:04:19,933 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:19,937 INFO L225 Difference]: With dead ends: 159 [2020-07-10 19:04:19,937 INFO L226 Difference]: Without dead ends: 120 [2020-07-10 19:04:19,938 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-10 19:04:19,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-10 19:04:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-10 19:04:20,562 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:20,562 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 120 states. [2020-07-10 19:04:20,562 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-10 19:04:20,562 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-10 19:04:20,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:20,567 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-10 19:04:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-10 19:04:20,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:20,567 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:20,568 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-10 19:04:20,568 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-10 19:04:20,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:20,572 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-10 19:04:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-10 19:04:20,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:20,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:20,572 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:20,573 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-10 19:04:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2020-07-10 19:04:20,576 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 45 [2020-07-10 19:04:20,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:20,577 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2020-07-10 19:04:20,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 19:04:20,577 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 120 states and 124 transitions. [2020-07-10 19:04:20,864 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:20,864 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-10 19:04:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-10 19:04:20,865 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:20,866 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] [2020-07-10 19:04:20,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-10 19:04:20,866 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]=== [2020-07-10 19:04:20,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:20,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-07-10 19:04:20,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:20,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579742480] [2020-07-10 19:04:20,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:21,377 INFO L280 TraceCheckUtils]: 0: Hoare triple {6356#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6333#true} is VALID [2020-07-10 19:04:21,377 INFO L280 TraceCheckUtils]: 1: Hoare triple {6333#true} #valid := #valid[0 := 0]; {6333#true} is VALID [2020-07-10 19:04:21,377 INFO L280 TraceCheckUtils]: 2: Hoare triple {6333#true} assume 0 < #StackHeapBarrier; {6333#true} is VALID [2020-07-10 19:04:21,378 INFO L280 TraceCheckUtils]: 3: Hoare triple {6333#true} assume true; {6333#true} is VALID [2020-07-10 19:04:21,378 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6333#true} {6333#true} #260#return; {6333#true} is VALID [2020-07-10 19:04:21,379 INFO L263 TraceCheckUtils]: 0: Hoare triple {6333#true} call ULTIMATE.init(); {6356#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:21,380 INFO L280 TraceCheckUtils]: 1: Hoare triple {6356#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {6333#true} is VALID [2020-07-10 19:04:21,380 INFO L280 TraceCheckUtils]: 2: Hoare triple {6333#true} #valid := #valid[0 := 0]; {6333#true} is VALID [2020-07-10 19:04:21,380 INFO L280 TraceCheckUtils]: 3: Hoare triple {6333#true} assume 0 < #StackHeapBarrier; {6333#true} is VALID [2020-07-10 19:04:21,380 INFO L280 TraceCheckUtils]: 4: Hoare triple {6333#true} assume true; {6333#true} is VALID [2020-07-10 19:04:21,381 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6333#true} {6333#true} #260#return; {6333#true} is VALID [2020-07-10 19:04:21,381 INFO L263 TraceCheckUtils]: 6: Hoare triple {6333#true} call #t~ret21 := main(); {6333#true} is VALID [2020-07-10 19:04:21,386 INFO L280 TraceCheckUtils]: 7: Hoare triple {6333#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {6340#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-10 19:04:21,388 INFO L280 TraceCheckUtils]: 8: Hoare triple {6340#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {6341#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:21,391 INFO L280 TraceCheckUtils]: 9: Hoare triple {6341#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {6341#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:21,393 INFO L280 TraceCheckUtils]: 10: Hoare triple {6341#(= 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 {6341#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:21,397 INFO L280 TraceCheckUtils]: 11: Hoare triple {6341#(= 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 {6341#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:21,399 INFO L280 TraceCheckUtils]: 12: Hoare triple {6341#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {6342#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:21,405 INFO L280 TraceCheckUtils]: 13: Hoare triple {6342#(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; {6343#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:21,406 INFO L280 TraceCheckUtils]: 14: Hoare triple {6343#(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 {6343#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:21,407 INFO L280 TraceCheckUtils]: 15: Hoare triple {6343#(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 {6343#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:21,408 INFO L280 TraceCheckUtils]: 16: Hoare triple {6343#(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 {6343#(and (= 1 (select |#valid| main_~list~0.base)) (= 1 (select |#valid| main_~null~0.base)))} is VALID [2020-07-10 19:04:21,409 INFO L280 TraceCheckUtils]: 17: Hoare triple {6343#(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; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,410 INFO L280 TraceCheckUtils]: 18: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,411 INFO L280 TraceCheckUtils]: 19: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !!(0 != #t~nondet2); {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,412 INFO L280 TraceCheckUtils]: 20: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet2; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,413 INFO L280 TraceCheckUtils]: 21: Hoare triple {6344#(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 {6345#(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 [2020-07-10 19:04:21,420 INFO L280 TraceCheckUtils]: 22: Hoare triple {6345#(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 {6346#(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 [2020-07-10 19:04:21,421 INFO L280 TraceCheckUtils]: 23: Hoare triple {6346#(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 {6347#(and (not (= |main_#t~mem4.base| 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 [2020-07-10 19:04:21,423 INFO L280 TraceCheckUtils]: 24: Hoare triple {6347#(and (not (= |main_#t~mem4.base| 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 write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {6348#(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 [2020-07-10 19:04:21,424 INFO L280 TraceCheckUtils]: 25: Hoare triple {6348#(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; {6348#(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 [2020-07-10 19:04:21,425 INFO L280 TraceCheckUtils]: 26: Hoare triple {6348#(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 {6349#(and (= 1 (select |#valid| main_~null~0.base)) (= (select |#valid| |main_#t~mem5.base|) 1))} is VALID [2020-07-10 19:04:21,426 INFO L280 TraceCheckUtils]: 27: Hoare triple {6349#(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; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,427 INFO L280 TraceCheckUtils]: 28: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem5.base, #t~mem5.offset; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,428 INFO L280 TraceCheckUtils]: 29: Hoare triple {6344#(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 {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,429 INFO L280 TraceCheckUtils]: 30: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,429 INFO L280 TraceCheckUtils]: 31: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} assume !(0 != #t~nondet6); {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,430 INFO L280 TraceCheckUtils]: 32: Hoare triple {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet6; {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,431 INFO L280 TraceCheckUtils]: 33: Hoare triple {6344#(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 {6344#(and (= 1 (select |#valid| main_~null~0.base)) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,432 INFO L280 TraceCheckUtils]: 34: Hoare triple {6344#(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 {6350#(and (not (= |main_#t~malloc7.base| main_~null~0.base)) (not (= |main_#t~malloc7.base| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,433 INFO L280 TraceCheckUtils]: 35: Hoare triple {6350#(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 {6351#(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 [2020-07-10 19:04:21,443 INFO L280 TraceCheckUtils]: 36: Hoare triple {6351#(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 {6352#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} is VALID [2020-07-10 19:04:21,444 INFO L280 TraceCheckUtils]: 37: Hoare triple {6352#(and (not (= (select (select |#memory_$Pointer$.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 {6353#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:21,446 INFO L280 TraceCheckUtils]: 38: Hoare triple {6353#(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; {6353#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:21,446 INFO L280 TraceCheckUtils]: 39: Hoare triple {6353#(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 {6354#(not (= |main_#t~mem9.base| main_~null~0.base))} is VALID [2020-07-10 19:04:21,447 INFO L280 TraceCheckUtils]: 40: Hoare triple {6354#(not (= |main_#t~mem9.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem9.base, #t~mem9.offset; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,447 INFO L280 TraceCheckUtils]: 41: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem9.base, #t~mem9.offset; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,448 INFO L280 TraceCheckUtils]: 42: Hoare triple {6355#(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 {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,448 INFO L280 TraceCheckUtils]: 43: Hoare triple {6355#(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 {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,449 INFO L280 TraceCheckUtils]: 44: Hoare triple {6355#(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 {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,449 INFO L280 TraceCheckUtils]: 45: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,450 INFO L280 TraceCheckUtils]: 46: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,450 INFO L280 TraceCheckUtils]: 47: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} goto; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,451 INFO L280 TraceCheckUtils]: 48: Hoare triple {6355#(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 {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,452 INFO L280 TraceCheckUtils]: 49: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,452 INFO L280 TraceCheckUtils]: 50: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,453 INFO L280 TraceCheckUtils]: 51: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} goto; {6355#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:21,453 INFO L280 TraceCheckUtils]: 52: Hoare triple {6355#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {6334#false} is VALID [2020-07-10 19:04:21,454 INFO L280 TraceCheckUtils]: 53: Hoare triple {6334#false} assume !false; {6334#false} is VALID [2020-07-10 19:04:21,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:21,461 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:21,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579742480] [2020-07-10 19:04:21,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:21,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-10 19:04:21,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161936033] [2020-07-10 19:04:21,463 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-10 19:04:21,463 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:21,463 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-10 19:04:21,539 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:21,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-10 19:04:21,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:21,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-10 19:04:21,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-07-10 19:04:21,541 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand 19 states. [2020-07-10 19:04:26,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:26,765 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2020-07-10 19:04:26,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-10 19:04:26,765 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-10 19:04:26,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:26,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-10 19:04:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-10 19:04:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-10 19:04:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-10 19:04:26,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 174 transitions. [2020-07-10 19:04:27,067 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:27,070 INFO L225 Difference]: With dead ends: 187 [2020-07-10 19:04:27,071 INFO L226 Difference]: Without dead ends: 185 [2020-07-10 19:04:27,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2020-07-10 19:04:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-10 19:04:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 167. [2020-07-10 19:04:28,033 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:28,033 INFO L82 GeneralOperation]: Start isEquivalent. First operand 185 states. Second operand 167 states. [2020-07-10 19:04:28,033 INFO L74 IsIncluded]: Start isIncluded. First operand 185 states. Second operand 167 states. [2020-07-10 19:04:28,033 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 167 states. [2020-07-10 19:04:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:28,040 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-10 19:04:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-10 19:04:28,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:28,041 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:28,041 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 185 states. [2020-07-10 19:04:28,041 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 185 states. [2020-07-10 19:04:28,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:28,046 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-10 19:04:28,046 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-10 19:04:28,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:28,047 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:28,047 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:28,048 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-10 19:04:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-07-10 19:04:28,052 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 54 [2020-07-10 19:04:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:28,053 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-07-10 19:04:28,053 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-10 19:04:28,053 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 167 states and 174 transitions. [2020-07-10 19:04:28,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-07-10 19:04:28,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-10 19:04:28,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:28,485 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] [2020-07-10 19:04:28,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-10 19:04:28,485 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]=== [2020-07-10 19:04:28,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:28,486 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-07-10 19:04:28,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:28,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [664690394] [2020-07-10 19:04:28,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:29,327 INFO L280 TraceCheckUtils]: 0: Hoare triple {7496#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7475#true} is VALID [2020-07-10 19:04:29,327 INFO L280 TraceCheckUtils]: 1: Hoare triple {7475#true} #valid := #valid[0 := 0]; {7475#true} is VALID [2020-07-10 19:04:29,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {7475#true} assume 0 < #StackHeapBarrier; {7475#true} is VALID [2020-07-10 19:04:29,328 INFO L280 TraceCheckUtils]: 3: Hoare triple {7475#true} assume true; {7475#true} is VALID [2020-07-10 19:04:29,328 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7475#true} {7475#true} #260#return; {7475#true} is VALID [2020-07-10 19:04:29,340 INFO L263 TraceCheckUtils]: 0: Hoare triple {7475#true} call ULTIMATE.init(); {7496#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:29,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {7496#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {7475#true} is VALID [2020-07-10 19:04:29,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {7475#true} #valid := #valid[0 := 0]; {7475#true} is VALID [2020-07-10 19:04:29,341 INFO L280 TraceCheckUtils]: 3: Hoare triple {7475#true} assume 0 < #StackHeapBarrier; {7475#true} is VALID [2020-07-10 19:04:29,341 INFO L280 TraceCheckUtils]: 4: Hoare triple {7475#true} assume true; {7475#true} is VALID [2020-07-10 19:04:29,341 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7475#true} {7475#true} #260#return; {7475#true} is VALID [2020-07-10 19:04:29,342 INFO L263 TraceCheckUtils]: 6: Hoare triple {7475#true} call #t~ret21 := main(); {7475#true} is VALID [2020-07-10 19:04:29,342 INFO L280 TraceCheckUtils]: 7: Hoare triple {7475#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {7482#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-10 19:04:29,343 INFO L280 TraceCheckUtils]: 8: Hoare triple {7482#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {7475#true} is VALID [2020-07-10 19:04:29,343 INFO L280 TraceCheckUtils]: 9: Hoare triple {7475#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {7475#true} is VALID [2020-07-10 19:04:29,343 INFO L280 TraceCheckUtils]: 10: Hoare triple {7475#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {7475#true} is VALID [2020-07-10 19:04:29,343 INFO L280 TraceCheckUtils]: 11: Hoare triple {7475#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {7475#true} is VALID [2020-07-10 19:04:29,345 INFO L280 TraceCheckUtils]: 12: Hoare triple {7475#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {7483#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-10 19:04:29,345 INFO L280 TraceCheckUtils]: 13: Hoare triple {7483#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {7484#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:29,347 INFO L280 TraceCheckUtils]: 14: Hoare triple {7484#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {7484#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:29,348 INFO L280 TraceCheckUtils]: 15: Hoare triple {7484#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {7484#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:29,349 INFO L280 TraceCheckUtils]: 16: Hoare triple {7484#(and (= 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 {7485#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,350 INFO L280 TraceCheckUtils]: 17: Hoare triple {7485#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {7486#(and (= 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 [2020-07-10 19:04:29,351 INFO L280 TraceCheckUtils]: 18: Hoare triple {7486#(and (= 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; {7486#(and (= 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 [2020-07-10 19:04:29,352 INFO L280 TraceCheckUtils]: 19: Hoare triple {7486#(and (= 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); {7486#(and (= 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 [2020-07-10 19:04:29,353 INFO L280 TraceCheckUtils]: 20: Hoare triple {7486#(and (= 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; {7486#(and (= 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 [2020-07-10 19:04:29,354 INFO L280 TraceCheckUtils]: 21: Hoare triple {7486#(and (= 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 {7487#(and (= 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)))} is VALID [2020-07-10 19:04:29,356 INFO L280 TraceCheckUtils]: 22: Hoare triple {7487#(and (= 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)))} SUMMARY for call write~$Pointer$(#t~malloc3.base, #t~malloc3.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1003-1 {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} is VALID [2020-07-10 19:04:29,357 INFO L280 TraceCheckUtils]: 23: Hoare triple {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} SUMMARY for call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1003-2 {7489#(and (= 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|) (= (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)))} is VALID [2020-07-10 19:04:29,359 INFO L280 TraceCheckUtils]: 24: Hoare triple {7489#(and (= 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|) (= (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)))} SUMMARY for call write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} is VALID [2020-07-10 19:04:29,361 INFO L280 TraceCheckUtils]: 25: Hoare triple {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} havoc #t~mem4.base, #t~mem4.offset; {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} is VALID [2020-07-10 19:04:29,362 INFO L280 TraceCheckUtils]: 26: Hoare triple {7488#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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)))} SUMMARY for call #t~mem5.base, #t~mem5.offset := read~$Pointer$(~end~0.base, ~end~0.offset, 4); srcloc: L1005 {7490#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,363 INFO L280 TraceCheckUtils]: 27: Hoare triple {7490#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {7491#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,363 INFO L280 TraceCheckUtils]: 28: Hoare triple {7491#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem5.base, #t~mem5.offset; {7491#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,365 INFO L280 TraceCheckUtils]: 29: Hoare triple {7491#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1006 {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,366 INFO L280 TraceCheckUtils]: 30: Hoare triple {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,367 INFO L280 TraceCheckUtils]: 31: Hoare triple {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} assume 0 != #t~nondet6; {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,369 INFO L280 TraceCheckUtils]: 32: Hoare triple {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet6; {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,370 INFO L280 TraceCheckUtils]: 33: Hoare triple {7492#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~int(~unnamed1~0~BLACK, ~end~0.base, 8 + ~end~0.offset, 4); srcloc: L1010 {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,371 INFO L280 TraceCheckUtils]: 34: Hoare triple {7493#(and (= 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 {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,372 INFO L280 TraceCheckUtils]: 35: Hoare triple {7493#(and (= 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); {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,373 INFO L280 TraceCheckUtils]: 36: Hoare triple {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem10; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,373 INFO L280 TraceCheckUtils]: 37: Hoare triple {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,374 INFO L280 TraceCheckUtils]: 38: Hoare triple {7493#(and (= 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 {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,375 INFO L280 TraceCheckUtils]: 39: Hoare triple {7493#(and (= 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); {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,376 INFO L280 TraceCheckUtils]: 40: Hoare triple {7493#(and (= 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; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,377 INFO L280 TraceCheckUtils]: 41: Hoare triple {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,378 INFO L280 TraceCheckUtils]: 42: Hoare triple {7493#(and (= 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); {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,379 INFO L280 TraceCheckUtils]: 43: Hoare triple {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,380 INFO L280 TraceCheckUtils]: 44: Hoare triple {7493#(and (= 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; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,382 INFO L280 TraceCheckUtils]: 45: Hoare triple {7493#(and (= 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); {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,383 INFO L280 TraceCheckUtils]: 46: Hoare triple {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,385 INFO L280 TraceCheckUtils]: 47: Hoare triple {7493#(and (= 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; {7493#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:29,386 INFO L280 TraceCheckUtils]: 48: Hoare triple {7493#(and (= 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; {7494#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:29,387 INFO L280 TraceCheckUtils]: 49: Hoare triple {7494#(= ~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); {7494#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:29,387 INFO L280 TraceCheckUtils]: 50: Hoare triple {7494#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {7494#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:29,388 INFO L280 TraceCheckUtils]: 51: Hoare triple {7494#(= ~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 {7495#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-10 19:04:29,389 INFO L280 TraceCheckUtils]: 52: Hoare triple {7495#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {7476#false} is VALID [2020-07-10 19:04:29,389 INFO L280 TraceCheckUtils]: 53: Hoare triple {7476#false} havoc #t~mem12; {7476#false} is VALID [2020-07-10 19:04:29,389 INFO L280 TraceCheckUtils]: 54: Hoare triple {7476#false} assume !false; {7476#false} is VALID [2020-07-10 19:04:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:29,404 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:29,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [664690394] [2020-07-10 19:04:29,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:29,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-10 19:04:29,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321022071] [2020-07-10 19:04:29,406 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-07-10 19:04:29,406 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:29,406 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-10 19:04:29,474 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:29,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-10 19:04:29,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:29,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-10 19:04:29,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-10 19:04:29,475 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 17 states. [2020-07-10 19:04:33,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:33,974 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2020-07-10 19:04:33,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-10 19:04:33,974 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-07-10 19:04:33,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:33,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-10 19:04:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 183 transitions. [2020-07-10 19:04:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-10 19:04:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 183 transitions. [2020-07-10 19:04:33,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 183 transitions. [2020-07-10 19:04:34,279 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 183 edges. 183 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:34,285 INFO L225 Difference]: With dead ends: 224 [2020-07-10 19:04:34,286 INFO L226 Difference]: Without dead ends: 221 [2020-07-10 19:04:34,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2020-07-10 19:04:34,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-10 19:04:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 177. [2020-07-10 19:04:35,382 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:35,383 INFO L82 GeneralOperation]: Start isEquivalent. First operand 221 states. Second operand 177 states. [2020-07-10 19:04:35,383 INFO L74 IsIncluded]: Start isIncluded. First operand 221 states. Second operand 177 states. [2020-07-10 19:04:35,383 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 177 states. [2020-07-10 19:04:35,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:35,389 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-10 19:04:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-10 19:04:35,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:35,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:35,391 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 221 states. [2020-07-10 19:04:35,391 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 221 states. [2020-07-10 19:04:35,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:35,396 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-10 19:04:35,396 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-10 19:04:35,397 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:35,397 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:35,397 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:35,397 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-10 19:04:35,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 185 transitions. [2020-07-10 19:04:35,401 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 185 transitions. Word has length 55 [2020-07-10 19:04:35,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:35,402 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 185 transitions. [2020-07-10 19:04:35,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-10 19:04:35,402 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 177 states and 185 transitions. [2020-07-10 19:04:35,843 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 185 transitions. [2020-07-10 19:04:35,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-10 19:04:35,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:35,844 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] [2020-07-10 19:04:35,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-10 19:04:35,845 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]=== [2020-07-10 19:04:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:35,846 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-07-10 19:04:35,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:35,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367033068] [2020-07-10 19:04:35,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:37,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {8800#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8773#true} is VALID [2020-07-10 19:04:37,220 INFO L280 TraceCheckUtils]: 1: Hoare triple {8773#true} #valid := #valid[0 := 0]; {8773#true} is VALID [2020-07-10 19:04:37,220 INFO L280 TraceCheckUtils]: 2: Hoare triple {8773#true} assume 0 < #StackHeapBarrier; {8773#true} is VALID [2020-07-10 19:04:37,220 INFO L280 TraceCheckUtils]: 3: Hoare triple {8773#true} assume true; {8773#true} is VALID [2020-07-10 19:04:37,220 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8773#true} {8773#true} #260#return; {8773#true} is VALID [2020-07-10 19:04:37,227 INFO L263 TraceCheckUtils]: 0: Hoare triple {8773#true} call ULTIMATE.init(); {8800#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:37,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {8800#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {8773#true} is VALID [2020-07-10 19:04:37,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {8773#true} #valid := #valid[0 := 0]; {8773#true} is VALID [2020-07-10 19:04:37,228 INFO L280 TraceCheckUtils]: 3: Hoare triple {8773#true} assume 0 < #StackHeapBarrier; {8773#true} is VALID [2020-07-10 19:04:37,228 INFO L280 TraceCheckUtils]: 4: Hoare triple {8773#true} assume true; {8773#true} is VALID [2020-07-10 19:04:37,229 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8773#true} {8773#true} #260#return; {8773#true} is VALID [2020-07-10 19:04:37,229 INFO L263 TraceCheckUtils]: 6: Hoare triple {8773#true} call #t~ret21 := main(); {8773#true} is VALID [2020-07-10 19:04:37,230 INFO L280 TraceCheckUtils]: 7: Hoare triple {8773#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {8780#(= 0 |main_#t~malloc0.offset|)} is VALID [2020-07-10 19:04:37,231 INFO L280 TraceCheckUtils]: 8: Hoare triple {8780#(= 0 |main_#t~malloc0.offset|)} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {8773#true} is VALID [2020-07-10 19:04:37,231 INFO L280 TraceCheckUtils]: 9: Hoare triple {8773#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {8773#true} is VALID [2020-07-10 19:04:37,231 INFO L280 TraceCheckUtils]: 10: Hoare triple {8773#true} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, 4 + ~null~0.offset, 4); srcloc: L988-1 {8773#true} is VALID [2020-07-10 19:04:37,231 INFO L280 TraceCheckUtils]: 11: Hoare triple {8773#true} SUMMARY for call write~int(~unnamed1~0~BLACK, ~null~0.base, 8 + ~null~0.offset, 4); srcloc: L989 {8773#true} is VALID [2020-07-10 19:04:37,232 INFO L280 TraceCheckUtils]: 12: Hoare triple {8773#true} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {8781#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} is VALID [2020-07-10 19:04:37,233 INFO L280 TraceCheckUtils]: 13: Hoare triple {8781#(and (= 1 (select |#valid| |main_#t~malloc1.base|)) (= 0 |main_#t~malloc1.offset|))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {8782#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:37,234 INFO L280 TraceCheckUtils]: 14: Hoare triple {8782#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, ~list~0.offset, 4); srcloc: L993 {8782#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:37,235 INFO L280 TraceCheckUtils]: 15: Hoare triple {8782#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~list~0.base, 4 + ~list~0.offset, 4); srcloc: L993-1 {8782#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)))} is VALID [2020-07-10 19:04:37,237 INFO L280 TraceCheckUtils]: 16: Hoare triple {8782#(and (= 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 {8783#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,238 INFO L280 TraceCheckUtils]: 17: Hoare triple {8783#(and (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {8784#(and (= 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 [2020-07-10 19:04:37,239 INFO L280 TraceCheckUtils]: 18: Hoare triple {8784#(and (= 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; {8784#(and (= 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 [2020-07-10 19:04:37,240 INFO L280 TraceCheckUtils]: 19: Hoare triple {8784#(and (= 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); {8784#(and (= 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 [2020-07-10 19:04:37,241 INFO L280 TraceCheckUtils]: 20: Hoare triple {8784#(and (= 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; {8784#(and (= 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 [2020-07-10 19:04:37,242 INFO L280 TraceCheckUtils]: 21: Hoare triple {8784#(and (= 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 {8785#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 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 [2020-07-10 19:04:37,244 INFO L280 TraceCheckUtils]: 22: Hoare triple {8785#(and (= 1 (select |#valid| |main_#t~malloc3.base|)) (= 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 {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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 [2020-07-10 19:04:37,245 INFO L280 TraceCheckUtils]: 23: Hoare triple {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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 {8787#(and (= 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|) (= (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 [2020-07-10 19:04:37,247 INFO L280 TraceCheckUtils]: 24: Hoare triple {8787#(and (= 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|) (= (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 write~$Pointer$(~end~0.base, ~end~0.offset, #t~mem4.base, 4 + #t~mem4.offset, 4); srcloc: L1004 {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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 [2020-07-10 19:04:37,248 INFO L280 TraceCheckUtils]: 25: Hoare triple {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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; {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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 [2020-07-10 19:04:37,249 INFO L280 TraceCheckUtils]: 26: Hoare triple {8786#(and (= 0 main_~list~0.offset) (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~end~0.base)) (= main_~list~0.base main_~end~0.base) (= (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 {8788#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 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 [2020-07-10 19:04:37,250 INFO L280 TraceCheckUtils]: 27: Hoare triple {8788#(and (not (= |main_#t~mem5.base| main_~list~0.base)) (= 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; {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,251 INFO L280 TraceCheckUtils]: 28: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~mem5.base, #t~mem5.offset; {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,252 INFO L280 TraceCheckUtils]: 29: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 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 {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,254 INFO L280 TraceCheckUtils]: 30: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,254 INFO L280 TraceCheckUtils]: 31: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} assume !(0 != #t~nondet6); {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,255 INFO L280 TraceCheckUtils]: 32: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} havoc #t~nondet6; {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,257 INFO L280 TraceCheckUtils]: 33: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 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 {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,259 INFO L280 TraceCheckUtils]: 34: Hoare triple {8789#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= 1 (select |#valid| main_~list~0.base)) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))) (= 1 (select |#valid| main_~end~0.base)))} SUMMARY for call #t~malloc7.base, #t~malloc7.offset := #Ultimate.allocOnHeap(12); srcloc: L1014-1 {8790#(and (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 [2020-07-10 19:04:37,261 INFO L280 TraceCheckUtils]: 35: Hoare triple {8790#(and (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 {8791#(and (= 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 [2020-07-10 19:04:37,263 INFO L280 TraceCheckUtils]: 36: Hoare triple {8791#(and (= 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 {8792#(and (= 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)) (not (= |main_#t~mem8.base| main_~list~0.base)) (not (= |main_#t~mem8.base| main_~end~0.base)))} is VALID [2020-07-10 19:04:37,264 INFO L280 TraceCheckUtils]: 37: Hoare triple {8792#(and (= 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)) (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 {8793#(and (= 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 [2020-07-10 19:04:37,265 INFO L280 TraceCheckUtils]: 38: Hoare triple {8793#(and (= 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; {8793#(and (= 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 [2020-07-10 19:04:37,266 INFO L280 TraceCheckUtils]: 39: Hoare triple {8793#(and (= 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 {8794#(and (= 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 [2020-07-10 19:04:37,267 INFO L280 TraceCheckUtils]: 40: Hoare triple {8794#(and (= 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; {8795#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,268 INFO L280 TraceCheckUtils]: 41: Hoare triple {8795#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem9.base, #t~mem9.offset; {8795#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,269 INFO L280 TraceCheckUtils]: 42: Hoare triple {8795#(and (not (= main_~list~0.base main_~end~0.base)) (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} SUMMARY for call write~$Pointer$(~null~0.base, ~null~0.offset, ~end~0.base, ~end~0.offset, 4); srcloc: L1018 {8796#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8) ~unnamed1~0~BLACK)) main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,270 INFO L280 TraceCheckUtils]: 43: Hoare triple {8796#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select (store |#memory_int| main_~end~0.base (store (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 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 {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,271 INFO L280 TraceCheckUtils]: 44: Hoare triple {8797#(and (= 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 {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,277 INFO L280 TraceCheckUtils]: 45: Hoare triple {8797#(and (= 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); {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,278 INFO L280 TraceCheckUtils]: 46: Hoare triple {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~mem10; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,278 INFO L280 TraceCheckUtils]: 47: Hoare triple {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,279 INFO L280 TraceCheckUtils]: 48: Hoare triple {8797#(and (= 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 {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,280 INFO L280 TraceCheckUtils]: 49: Hoare triple {8797#(and (= 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); {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,281 INFO L280 TraceCheckUtils]: 50: Hoare triple {8797#(and (= 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; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,281 INFO L280 TraceCheckUtils]: 51: Hoare triple {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,282 INFO L280 TraceCheckUtils]: 52: Hoare triple {8797#(and (= 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); {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,283 INFO L280 TraceCheckUtils]: 53: Hoare triple {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} goto; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,284 INFO L280 TraceCheckUtils]: 54: Hoare triple {8797#(and (= 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; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,284 INFO L280 TraceCheckUtils]: 55: Hoare triple {8797#(and (= 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); {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,285 INFO L280 TraceCheckUtils]: 56: Hoare triple {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} havoc #t~nondet2; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,286 INFO L280 TraceCheckUtils]: 57: Hoare triple {8797#(and (= 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; {8797#(and (= 0 main_~list~0.offset) (= ~unnamed1~0~BLACK (select (select |#memory_int| main_~list~0.base) (+ main_~list~0.offset 8))))} is VALID [2020-07-10 19:04:37,286 INFO L280 TraceCheckUtils]: 58: Hoare triple {8797#(and (= 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; {8798#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:37,287 INFO L280 TraceCheckUtils]: 59: Hoare triple {8798#(= ~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); {8798#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:37,288 INFO L280 TraceCheckUtils]: 60: Hoare triple {8798#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} goto; {8798#(= ~unnamed1~0~BLACK (select (select |#memory_int| main_~end~0.base) (+ main_~end~0.offset 8)))} is VALID [2020-07-10 19:04:37,288 INFO L280 TraceCheckUtils]: 61: Hoare triple {8798#(= ~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 {8799#(= ~unnamed1~0~BLACK |main_#t~mem12|)} is VALID [2020-07-10 19:04:37,291 INFO L280 TraceCheckUtils]: 62: Hoare triple {8799#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {8774#false} is VALID [2020-07-10 19:04:37,291 INFO L280 TraceCheckUtils]: 63: Hoare triple {8774#false} havoc #t~mem12; {8774#false} is VALID [2020-07-10 19:04:37,292 INFO L280 TraceCheckUtils]: 64: Hoare triple {8774#false} assume !false; {8774#false} is VALID [2020-07-10 19:04:37,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:37,309 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:37,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367033068] [2020-07-10 19:04:37,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:37,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-07-10 19:04:37,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003686370] [2020-07-10 19:04:37,310 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2020-07-10 19:04:37,310 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:37,311 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2020-07-10 19:04:37,418 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:37,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-10 19:04:37,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:37,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-10 19:04:37,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2020-07-10 19:04:37,420 INFO L87 Difference]: Start difference. First operand 177 states and 185 transitions. Second operand 23 states. [2020-07-10 19:04:43,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:43,948 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-07-10 19:04:43,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-10 19:04:43,949 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2020-07-10 19:04:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:43,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-10 19:04:43,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 209 transitions. [2020-07-10 19:04:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-10 19:04:43,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 209 transitions. [2020-07-10 19:04:43,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 209 transitions. [2020-07-10 19:04:44,330 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:44,338 INFO L225 Difference]: With dead ends: 254 [2020-07-10 19:04:44,339 INFO L226 Difference]: Without dead ends: 251 [2020-07-10 19:04:44,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=436, Invalid=1544, Unknown=0, NotChecked=0, Total=1980 [2020-07-10 19:04:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-07-10 19:04:45,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 201. [2020-07-10 19:04:45,688 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:45,688 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states. Second operand 201 states. [2020-07-10 19:04:45,688 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand 201 states. [2020-07-10 19:04:45,688 INFO L87 Difference]: Start difference. First operand 251 states. Second operand 201 states. [2020-07-10 19:04:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:45,700 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-10 19:04:45,700 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-10 19:04:45,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:45,701 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:45,702 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 251 states. [2020-07-10 19:04:45,702 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 251 states. [2020-07-10 19:04:45,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:45,709 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-10 19:04:45,709 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-10 19:04:45,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:45,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:45,711 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:45,711 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:45,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-10 19:04:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 210 transitions. [2020-07-10 19:04:45,716 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 210 transitions. Word has length 65 [2020-07-10 19:04:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:45,717 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 210 transitions. [2020-07-10 19:04:45,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-10 19:04:45,717 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 210 transitions. [2020-07-10 19:04:46,336 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:46,337 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 210 transitions. [2020-07-10 19:04:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-10 19:04:46,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:46,338 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] [2020-07-10 19:04:46,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-10 19:04:46,339 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]=== [2020-07-10 19:04:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:46,339 INFO L82 PathProgramCache]: Analyzing trace with hash -736103817, now seen corresponding path program 1 times [2020-07-10 19:04:46,339 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:46,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074537406] [2020-07-10 19:04:46,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 19:04:46,694 INFO L280 TraceCheckUtils]: 0: Hoare triple {10273#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10259#true} is VALID [2020-07-10 19:04:46,695 INFO L280 TraceCheckUtils]: 1: Hoare triple {10259#true} #valid := #valid[0 := 0]; {10259#true} is VALID [2020-07-10 19:04:46,695 INFO L280 TraceCheckUtils]: 2: Hoare triple {10259#true} assume 0 < #StackHeapBarrier; {10259#true} is VALID [2020-07-10 19:04:46,695 INFO L280 TraceCheckUtils]: 3: Hoare triple {10259#true} assume true; {10259#true} is VALID [2020-07-10 19:04:46,696 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {10259#true} {10259#true} #260#return; {10259#true} is VALID [2020-07-10 19:04:46,698 INFO L263 TraceCheckUtils]: 0: Hoare triple {10259#true} call ULTIMATE.init(); {10273#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID [2020-07-10 19:04:46,698 INFO L280 TraceCheckUtils]: 1: Hoare triple {10273#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0; {10259#true} is VALID [2020-07-10 19:04:46,699 INFO L280 TraceCheckUtils]: 2: Hoare triple {10259#true} #valid := #valid[0 := 0]; {10259#true} is VALID [2020-07-10 19:04:46,699 INFO L280 TraceCheckUtils]: 3: Hoare triple {10259#true} assume 0 < #StackHeapBarrier; {10259#true} is VALID [2020-07-10 19:04:46,699 INFO L280 TraceCheckUtils]: 4: Hoare triple {10259#true} assume true; {10259#true} is VALID [2020-07-10 19:04:46,699 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {10259#true} {10259#true} #260#return; {10259#true} is VALID [2020-07-10 19:04:46,699 INFO L263 TraceCheckUtils]: 6: Hoare triple {10259#true} call #t~ret21 := main(); {10259#true} is VALID [2020-07-10 19:04:46,701 INFO L280 TraceCheckUtils]: 7: Hoare triple {10259#true} SUMMARY for call #t~malloc0.base, #t~malloc0.offset := #Ultimate.allocOnHeap(12); srcloc: mainENTRY {10266#(= 1 (select |#valid| |main_#t~malloc0.base|))} is VALID [2020-07-10 19:04:46,702 INFO L280 TraceCheckUtils]: 8: Hoare triple {10266#(= 1 (select |#valid| |main_#t~malloc0.base|))} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,703 INFO L280 TraceCheckUtils]: 9: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call write~$Pointer$(0, 0, ~null~0.base, ~null~0.offset, 4); srcloc: L988 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,704 INFO L280 TraceCheckUtils]: 10: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,704 INFO L280 TraceCheckUtils]: 11: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,706 INFO L280 TraceCheckUtils]: 12: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(12); srcloc: L990 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,707 INFO L280 TraceCheckUtils]: 13: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,707 INFO L280 TraceCheckUtils]: 14: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,708 INFO L280 TraceCheckUtils]: 15: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,708 INFO L280 TraceCheckUtils]: 16: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,709 INFO L280 TraceCheckUtils]: 17: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,710 INFO L280 TraceCheckUtils]: 18: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,710 INFO L280 TraceCheckUtils]: 19: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume !!(0 != #t~nondet2); {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,711 INFO L280 TraceCheckUtils]: 20: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet2; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,712 INFO L280 TraceCheckUtils]: 21: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,713 INFO L280 TraceCheckUtils]: 22: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,714 INFO L280 TraceCheckUtils]: 23: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,714 INFO L280 TraceCheckUtils]: 24: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,715 INFO L280 TraceCheckUtils]: 25: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem4.base, #t~mem4.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,716 INFO L280 TraceCheckUtils]: 26: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,716 INFO L280 TraceCheckUtils]: 27: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,717 INFO L280 TraceCheckUtils]: 28: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem5.base, #t~mem5.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,718 INFO L280 TraceCheckUtils]: 29: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,718 INFO L280 TraceCheckUtils]: 30: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,719 INFO L280 TraceCheckUtils]: 31: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume 0 != #t~nondet6; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,719 INFO L280 TraceCheckUtils]: 32: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet6; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,720 INFO L280 TraceCheckUtils]: 33: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,721 INFO L280 TraceCheckUtils]: 34: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,721 INFO L280 TraceCheckUtils]: 35: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,722 INFO L280 TraceCheckUtils]: 36: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem10; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,723 INFO L280 TraceCheckUtils]: 37: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} goto; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,724 INFO L280 TraceCheckUtils]: 38: Hoare triple {10267#(= 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 {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,725 INFO L280 TraceCheckUtils]: 39: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,725 INFO L280 TraceCheckUtils]: 40: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~mem11.base, #t~mem11.offset; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,726 INFO L280 TraceCheckUtils]: 41: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} goto; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,727 INFO L280 TraceCheckUtils]: 42: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume !!(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,727 INFO L280 TraceCheckUtils]: 43: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} goto; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,728 INFO L280 TraceCheckUtils]: 44: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,728 INFO L280 TraceCheckUtils]: 45: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} assume !!(0 != #t~nondet2); {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,729 INFO L280 TraceCheckUtils]: 46: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} havoc #t~nondet2; {10267#(= 1 (select |#valid| main_~null~0.base))} is VALID [2020-07-10 19:04:46,730 INFO L280 TraceCheckUtils]: 47: Hoare triple {10267#(= 1 (select |#valid| main_~null~0.base))} SUMMARY for call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(12); srcloc: L1003 {10268#(not (= |main_#t~malloc3.base| main_~null~0.base))} is VALID [2020-07-10 19:04:46,731 INFO L280 TraceCheckUtils]: 48: Hoare triple {10268#(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 {10269#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:46,732 INFO L280 TraceCheckUtils]: 49: Hoare triple {10269#(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 {10270#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)) (or (not (= |main_#t~mem4.base| main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| |main_#t~mem4.base|) main_~end~0.offset) main_~end~0.base)))} is VALID [2020-07-10 19:04:46,734 INFO L280 TraceCheckUtils]: 50: Hoare triple {10270#(and (not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base)) (or (not (= |main_#t~mem4.base| main_~end~0.base)) (= (select (select |#memory_$Pointer$.base| |main_#t~mem4.base|) main_~end~0.offset) 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 {10269#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:46,735 INFO L280 TraceCheckUtils]: 51: Hoare triple {10269#(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; {10269#(not (= (select (select |#memory_$Pointer$.base| main_~end~0.base) main_~end~0.offset) main_~null~0.base))} is VALID [2020-07-10 19:04:46,737 INFO L280 TraceCheckUtils]: 52: Hoare triple {10269#(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 {10271#(not (= |main_#t~mem5.base| main_~null~0.base))} is VALID [2020-07-10 19:04:46,738 INFO L280 TraceCheckUtils]: 53: Hoare triple {10271#(not (= |main_#t~mem5.base| main_~null~0.base))} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,738 INFO L280 TraceCheckUtils]: 54: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem5.base, #t~mem5.offset; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,739 INFO L280 TraceCheckUtils]: 55: Hoare triple {10272#(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 {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,740 INFO L280 TraceCheckUtils]: 56: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,740 INFO L280 TraceCheckUtils]: 57: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} assume 0 != #t~nondet6; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,741 INFO L280 TraceCheckUtils]: 58: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} havoc #t~nondet6; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,741 INFO L280 TraceCheckUtils]: 59: Hoare triple {10272#(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 {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,742 INFO L280 TraceCheckUtils]: 60: Hoare triple {10272#(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 {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,743 INFO L280 TraceCheckUtils]: 61: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} assume !!(~unnamed1~0~BLACK == #t~mem10); {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,744 INFO L280 TraceCheckUtils]: 62: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem10; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,744 INFO L280 TraceCheckUtils]: 63: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} goto; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,745 INFO L280 TraceCheckUtils]: 64: Hoare triple {10272#(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 {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,745 INFO L280 TraceCheckUtils]: 65: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} assume !!(~null~0.base == #t~mem11.base && ~null~0.offset == #t~mem11.offset); {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,746 INFO L280 TraceCheckUtils]: 66: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} havoc #t~mem11.base, #t~mem11.offset; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,746 INFO L280 TraceCheckUtils]: 67: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} goto; {10272#(not (= main_~null~0.base main_~end~0.base))} is VALID [2020-07-10 19:04:46,747 INFO L280 TraceCheckUtils]: 68: Hoare triple {10272#(not (= main_~null~0.base main_~end~0.base))} assume !(~null~0.base != ~end~0.base || ~null~0.offset != ~end~0.offset); {10260#false} is VALID [2020-07-10 19:04:46,747 INFO L280 TraceCheckUtils]: 69: Hoare triple {10260#false} assume !false; {10260#false} is VALID [2020-07-10 19:04:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 19:04:46,755 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 19:04:46,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074537406] [2020-07-10 19:04:46,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 19:04:46,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-10 19:04:46,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292727945] [2020-07-10 19:04:46,756 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-10 19:04:46,757 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 19:04:46,757 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-10 19:04:46,869 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:46,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-10 19:04:46,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 19:04:46,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-10 19:04:46,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-10 19:04:46,870 INFO L87 Difference]: Start difference. First operand 201 states and 210 transitions. Second operand 10 states. [2020-07-10 19:04:49,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:49,728 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-07-10 19:04:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-10 19:04:49,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-10 19:04:49,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 19:04:49,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 19:04:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 124 transitions. [2020-07-10 19:04:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 19:04:49,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 124 transitions. [2020-07-10 19:04:49,733 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 124 transitions. [2020-07-10 19:04:49,928 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:49,933 INFO L225 Difference]: With dead ends: 227 [2020-07-10 19:04:49,933 INFO L226 Difference]: Without dead ends: 225 [2020-07-10 19:04:49,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-07-10 19:04:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-10 19:04:51,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2020-07-10 19:04:51,376 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 19:04:51,376 INFO L82 GeneralOperation]: Start isEquivalent. First operand 225 states. Second operand 201 states. [2020-07-10 19:04:51,376 INFO L74 IsIncluded]: Start isIncluded. First operand 225 states. Second operand 201 states. [2020-07-10 19:04:51,376 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 201 states. [2020-07-10 19:04:51,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:51,381 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-10 19:04:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-10 19:04:51,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:51,382 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:51,382 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 225 states. [2020-07-10 19:04:51,382 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 225 states. [2020-07-10 19:04:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 19:04:51,387 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-10 19:04:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-10 19:04:51,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 19:04:51,389 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 19:04:51,389 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 19:04:51,389 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 19:04:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-10 19:04:51,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 209 transitions. [2020-07-10 19:04:51,393 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 209 transitions. Word has length 70 [2020-07-10 19:04:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 19:04:51,394 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 209 transitions. [2020-07-10 19:04:51,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-10 19:04:51,394 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 209 transitions. [2020-07-10 19:04:52,047 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 19:04:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 209 transitions. [2020-07-10 19:04:52,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-10 19:04:52,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 19:04:52,049 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] [2020-07-10 19:04:52,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-10 19:04:52,050 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]=== [2020-07-10 19:04:52,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 19:04:52,055 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-07-10 19:04:52,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 19:04:52,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1890809774] [2020-07-10 19:04:52,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 19:04:52,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-10 19:04:52,072 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) [2020-07-10 19:04:52,085 INFO L168 Benchmark]: Toolchain (without parser) took 55628.43 ms. Allocated memory was 137.4 MB in the beginning and 574.6 MB in the end (delta: 437.3 MB). Free memory was 99.6 MB in the beginning and 249.3 MB in the end (delta: -149.7 MB). Peak memory consumption was 287.5 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,086 INFO L168 Benchmark]: CDTParser took 1.06 ms. Allocated memory is still 137.4 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.15 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 165.7 MB in the end (delta: -66.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,090 INFO L168 Benchmark]: Boogie Preprocessor took 87.93 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 161.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,091 INFO L168 Benchmark]: RCFGBuilder took 1109.71 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 161.7 MB in the beginning and 201.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,091 INFO L168 Benchmark]: TraceAbstraction took 53687.36 ms. Allocated memory was 232.3 MB in the beginning and 574.6 MB in the end (delta: 342.4 MB). Free memory was 201.4 MB in the beginning and 249.3 MB in the end (delta: -47.9 MB). Peak memory consumption was 294.4 MB. Max. memory is 7.1 GB. [2020-07-10 19:04:52,097 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 1.06 ms. Allocated memory is still 137.4 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 733.15 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 99.4 MB in the beginning and 165.7 MB in the end (delta: -66.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.93 ms. Allocated memory is still 200.8 MB. Free memory was 165.7 MB in the beginning and 161.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1109.71 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 161.7 MB in the beginning and 201.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53687.36 ms. Allocated memory was 232.3 MB in the beginning and 574.6 MB in the end (delta: 342.4 MB). Free memory was 201.4 MB in the beginning and 249.3 MB in the end (delta: -47.9 MB). Peak memory consumption was 294.4 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...