/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 0.1.25-267fbe0 [2020-07-18 00:23:31,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:23:31,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:23:31,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:23:31,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:23:31,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:23:31,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:23:31,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:23:31,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:23:31,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:23:31,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:23:31,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:23:31,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:23:31,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:23:31,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:23:31,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:23:31,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:23:31,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:23:31,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:23:31,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:23:31,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:23:31,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:23:31,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:23:31,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:23:31,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-18 00:23:31,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-18 00:23:31,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-18 00:23:31,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-18 00:23:31,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-18 00:23:31,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-18 00:23:31,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-18 00:23:31,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-18 00:23:31,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-18 00:23:31,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-18 00:23:31,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-18 00:23:31,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-18 00:23:31,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-18 00:23:31,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-18 00:23:31,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:23:31,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:23:31,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:23:31,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:23:31,415 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:23:31,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:23:31,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:23:31,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:23:31,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:23:31,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:23:31,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:23:31,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:23:31,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:23:31,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:23:31,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:23:31,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:23:31,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:23:31,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:23:31,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:23:31,420 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:23:31,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:23:31,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:23:31,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:23:31,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:23:31,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:23:31,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:23:31,421 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:23:31,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:23:31,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:23:31,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:23:31,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:23:31,750 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:23:31,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-18 00:23:31,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91f72e/de9d5fbcd1634d9bb9ab658ab720d84e/FLAG3af6a375e [2020-07-18 00:23:32,322 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:23:32,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-rb-sentinel-1.i [2020-07-18 00:23:32,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91f72e/de9d5fbcd1634d9bb9ab658ab720d84e/FLAG3af6a375e [2020-07-18 00:23:32,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02c91f72e/de9d5fbcd1634d9bb9ab658ab720d84e [2020-07-18 00:23:32,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:23:32,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:23:32,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:23:32,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:23:32,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:23:32,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:23:32" (1/1) ... [2020-07-18 00:23:32,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373006f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:32, skipping insertion in model container [2020-07-18 00:23:32,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:23:32" (1/1) ... [2020-07-18 00:23:32,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:23:32,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:23:33,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:23:33,167 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:23:33,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:23:33,273 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:23:33,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33 WrapperNode [2020-07-18 00:23:33,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:23:33,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:23:33,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:23:33,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:23:33,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (1/1) ... [2020-07-18 00:23:33,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:23:33,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:23:33,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:23:33,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:23:33,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (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 [2020-07-18 00:23:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:23:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:23:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:23:33,421 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-18 00:23:33,422 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-18 00:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-18 00:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-18 00:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-18 00:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-18 00:23:33,423 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-18 00:23:33,424 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-18 00:23:33,425 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-18 00:23:33,426 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-18 00:23:33,427 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-18 00:23:33,428 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-18 00:23:33,429 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-18 00:23:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-18 00:23:33,431 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-18 00:23:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-18 00:23:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-18 00:23:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-18 00:23:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-18 00:23:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-18 00:23:33,437 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-18 00:23:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:23:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:23:34,276 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:23:34,276 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-07-18 00:23:34,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:23:34 BoogieIcfgContainer [2020-07-18 00:23:34,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:23:34,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:23:34,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:23:34,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:23:34,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:23:32" (1/3) ... [2020-07-18 00:23:34,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b46281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:23:34, skipping insertion in model container [2020-07-18 00:23:34,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:23:33" (2/3) ... [2020-07-18 00:23:34,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b46281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:23:34, skipping insertion in model container [2020-07-18 00:23:34,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:23:34" (3/3) ... [2020-07-18 00:23:34,289 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2020-07-18 00:23:34,301 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:23:34,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-07-18 00:23:34,321 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-07-18 00:23:34,341 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:23:34,341 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:23:34,342 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:23:34,342 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:23:34,342 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:23:34,342 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:23:34,342 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:23:34,343 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:23:34,361 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-07-18 00:23:34,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-18 00:23:34,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:34,373 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] [2020-07-18 00:23:34,374 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]=== [2020-07-18 00:23:34,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:34,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1523709425, now seen corresponding path program 1 times [2020-07-18 00:23:34,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:34,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181716095] [2020-07-18 00:23:34,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:34,647 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 [2020-07-18 00:23:34,648 INFO L280 TraceCheckUtils]: 1: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-18 00:23:34,648 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-18 00:23:34,649 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-18 00:23:34,650 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-18 00:23:34,654 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 [2020-07-18 00:23:34,655 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 [2020-07-18 00:23:34,655 INFO L280 TraceCheckUtils]: 2: Hoare triple {126#true} #valid := #valid[0 := 0]; {126#true} is VALID [2020-07-18 00:23:34,655 INFO L280 TraceCheckUtils]: 3: Hoare triple {126#true} assume 0 < #StackHeapBarrier; {126#true} is VALID [2020-07-18 00:23:34,656 INFO L280 TraceCheckUtils]: 4: Hoare triple {126#true} assume true; {126#true} is VALID [2020-07-18 00:23:34,656 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {126#true} {126#true} #260#return; {126#true} is VALID [2020-07-18 00:23:34,656 INFO L263 TraceCheckUtils]: 6: Hoare triple {126#true} call #t~ret21 := main(); {126#true} is VALID [2020-07-18 00:23:34,657 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 [2020-07-18 00:23:34,657 INFO L280 TraceCheckUtils]: 8: Hoare triple {126#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {126#true} is VALID [2020-07-18 00:23:34,658 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 [2020-07-18 00:23:34,658 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 [2020-07-18 00:23:34,658 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 [2020-07-18 00:23:34,659 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 [2020-07-18 00:23:34,659 INFO L280 TraceCheckUtils]: 13: Hoare triple {126#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {126#true} is VALID [2020-07-18 00:23:34,659 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 [2020-07-18 00:23:34,660 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 [2020-07-18 00:23:34,660 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 [2020-07-18 00:23:34,660 INFO L280 TraceCheckUtils]: 17: Hoare triple {126#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {126#true} is VALID [2020-07-18 00:23:34,664 INFO L280 TraceCheckUtils]: 18: Hoare triple {126#true} assume !true; {127#false} is VALID [2020-07-18 00:23:34,665 INFO L280 TraceCheckUtils]: 19: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {127#false} is VALID [2020-07-18 00:23:34,665 INFO L280 TraceCheckUtils]: 20: Hoare triple {127#false} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {127#false} is VALID [2020-07-18 00:23:34,666 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 [2020-07-18 00:23:34,666 INFO L280 TraceCheckUtils]: 22: Hoare triple {127#false} assume !false; {127#false} is VALID [2020-07-18 00:23:34,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:34,671 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:34,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181716095] [2020-07-18 00:23:34,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:34,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:23:34,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113831834] [2020-07-18 00:23:34,682 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-18 00:23:34,685 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:34,689 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:23:34,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:34,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:23:34,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:34,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:23:34,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:23:34,740 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-07-18 00:23:35,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:35,359 INFO L93 Difference]: Finished difference Result 228 states and 286 transitions. [2020-07-18 00:23:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:23:35,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-07-18 00:23:35,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:35,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 00:23:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:23:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-07-18 00:23:35,396 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 286 transitions. [2020-07-18 00:23:35,750 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 286 edges. 286 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:35,770 INFO L225 Difference]: With dead ends: 228 [2020-07-18 00:23:35,770 INFO L226 Difference]: Without dead ends: 100 [2020-07-18 00:23:35,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:23:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-18 00:23:35,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-18 00:23:35,882 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:35,882 INFO L82 GeneralOperation]: Start isEquivalent. First operand 100 states. Second operand 100 states. [2020-07-18 00:23:35,883 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-18 00:23:35,883 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-18 00:23:35,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:35,898 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-18 00:23:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-18 00:23:35,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:35,900 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:35,902 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 100 states. [2020-07-18 00:23:35,902 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 100 states. [2020-07-18 00:23:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:35,921 INFO L93 Difference]: Finished difference Result 100 states and 103 transitions. [2020-07-18 00:23:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-18 00:23:35,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:35,925 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:35,925 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:35,925 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:35,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-18 00:23:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 103 transitions. [2020-07-18 00:23:35,941 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 103 transitions. Word has length 23 [2020-07-18 00:23:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:35,941 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 103 transitions. [2020-07-18 00:23:35,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:23:35,941 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 103 transitions. [2020-07-18 00:23:36,036 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 103 edges. 103 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:36,037 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 103 transitions. [2020-07-18 00:23:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-18 00:23:36,038 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:36,039 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] [2020-07-18 00:23:36,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:23:36,039 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]=== [2020-07-18 00:23:36,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:36,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1887154194, now seen corresponding path program 1 times [2020-07-18 00:23:36,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:36,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1707293483] [2020-07-18 00:23:36,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:36,245 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 [2020-07-18 00:23:36,246 INFO L280 TraceCheckUtils]: 1: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-18 00:23:36,246 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-18 00:23:36,246 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-18 00:23:36,247 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-18 00:23:36,248 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 [2020-07-18 00:23:36,248 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 [2020-07-18 00:23:36,249 INFO L280 TraceCheckUtils]: 2: Hoare triple {992#true} #valid := #valid[0 := 0]; {992#true} is VALID [2020-07-18 00:23:36,249 INFO L280 TraceCheckUtils]: 3: Hoare triple {992#true} assume 0 < #StackHeapBarrier; {992#true} is VALID [2020-07-18 00:23:36,249 INFO L280 TraceCheckUtils]: 4: Hoare triple {992#true} assume true; {992#true} is VALID [2020-07-18 00:23:36,249 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {992#true} {992#true} #260#return; {992#true} is VALID [2020-07-18 00:23:36,250 INFO L263 TraceCheckUtils]: 6: Hoare triple {992#true} call #t~ret21 := main(); {992#true} is VALID [2020-07-18 00:23:36,251 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 [2020-07-18 00:23:36,252 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 [2020-07-18 00:23:36,253 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 [2020-07-18 00:23:36,253 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 [2020-07-18 00:23:36,254 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 [2020-07-18 00:23:36,255 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 [2020-07-18 00:23:36,256 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 [2020-07-18 00:23:36,256 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 [2020-07-18 00:23:36,257 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 [2020-07-18 00:23:36,258 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 [2020-07-18 00:23:36,259 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 [2020-07-18 00:23:36,259 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 [2020-07-18 00:23:36,260 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 [2020-07-18 00:23:36,261 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 [2020-07-18 00:23:36,261 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 [2020-07-18 00:23:36,262 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 [2020-07-18 00:23:36,263 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 [2020-07-18 00:23:36,263 INFO L280 TraceCheckUtils]: 24: Hoare triple {993#false} assume !false; {993#false} is VALID [2020-07-18 00:23:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:36,265 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:36,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1707293483] [2020-07-18 00:23:36,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:36,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-18 00:23:36,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399572419] [2020-07-18 00:23:36,267 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-18 00:23:36,268 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:36,268 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-18 00:23:36,297 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:36,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-18 00:23:36,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:36,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-18 00:23:36,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-18 00:23:36,299 INFO L87 Difference]: Start difference. First operand 100 states and 103 transitions. Second operand 8 states. [2020-07-18 00:23:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:37,461 INFO L93 Difference]: Finished difference Result 121 states and 126 transitions. [2020-07-18 00:23:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-18 00:23:37,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-07-18 00:23:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:37,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 00:23:37,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-18 00:23:37,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-18 00:23:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions. [2020-07-18 00:23:37,468 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 126 transitions. [2020-07-18 00:23:37,640 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:37,645 INFO L225 Difference]: With dead ends: 121 [2020-07-18 00:23:37,645 INFO L226 Difference]: Without dead ends: 119 [2020-07-18 00:23:37,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-07-18 00:23:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-18 00:23:37,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 98. [2020-07-18 00:23:37,872 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:37,872 INFO L82 GeneralOperation]: Start isEquivalent. First operand 119 states. Second operand 98 states. [2020-07-18 00:23:37,872 INFO L74 IsIncluded]: Start isIncluded. First operand 119 states. Second operand 98 states. [2020-07-18 00:23:37,872 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 98 states. [2020-07-18 00:23:37,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:37,879 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-18 00:23:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-18 00:23:37,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:37,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:37,885 INFO L74 IsIncluded]: Start isIncluded. First operand 98 states. Second operand 119 states. [2020-07-18 00:23:37,885 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 119 states. [2020-07-18 00:23:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:37,895 INFO L93 Difference]: Finished difference Result 119 states and 124 transitions. [2020-07-18 00:23:37,895 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 124 transitions. [2020-07-18 00:23:37,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:37,898 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:37,899 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:37,899 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-07-18 00:23:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 101 transitions. [2020-07-18 00:23:37,905 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 101 transitions. Word has length 25 [2020-07-18 00:23:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:37,906 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 101 transitions. [2020-07-18 00:23:37,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-18 00:23:37,906 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 98 states and 101 transitions. [2020-07-18 00:23:38,047 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 101 transitions. [2020-07-18 00:23:38,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-18 00:23:38,048 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:38,048 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] [2020-07-18 00:23:38,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:23:38,049 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]=== [2020-07-18 00:23:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:38,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1939387545, now seen corresponding path program 1 times [2020-07-18 00:23:38,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:38,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [265622538] [2020-07-18 00:23:38,050 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:38,280 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 [2020-07-18 00:23:38,281 INFO L280 TraceCheckUtils]: 1: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-18 00:23:38,281 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-18 00:23:38,281 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-18 00:23:38,282 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-18 00:23:38,282 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 [2020-07-18 00:23:38,283 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 [2020-07-18 00:23:38,283 INFO L280 TraceCheckUtils]: 2: Hoare triple {1691#true} #valid := #valid[0 := 0]; {1691#true} is VALID [2020-07-18 00:23:38,283 INFO L280 TraceCheckUtils]: 3: Hoare triple {1691#true} assume 0 < #StackHeapBarrier; {1691#true} is VALID [2020-07-18 00:23:38,283 INFO L280 TraceCheckUtils]: 4: Hoare triple {1691#true} assume true; {1691#true} is VALID [2020-07-18 00:23:38,284 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {1691#true} {1691#true} #260#return; {1691#true} is VALID [2020-07-18 00:23:38,284 INFO L263 TraceCheckUtils]: 6: Hoare triple {1691#true} call #t~ret21 := main(); {1691#true} is VALID [2020-07-18 00:23:38,285 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 [2020-07-18 00:23:38,285 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 [2020-07-18 00:23:38,285 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 [2020-07-18 00:23:38,286 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 [2020-07-18 00:23:38,286 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 [2020-07-18 00:23:38,286 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 [2020-07-18 00:23:38,287 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 [2020-07-18 00:23:38,288 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 [2020-07-18 00:23:38,288 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 [2020-07-18 00:23:38,290 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 [2020-07-18 00:23:38,293 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 [2020-07-18 00:23:38,294 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 [2020-07-18 00:23:38,294 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 [2020-07-18 00:23:38,295 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 [2020-07-18 00:23:38,296 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 [2020-07-18 00:23:38,298 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 [2020-07-18 00:23:38,298 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 [2020-07-18 00:23:38,299 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 [2020-07-18 00:23:38,299 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 [2020-07-18 00:23:38,300 INFO L280 TraceCheckUtils]: 26: Hoare triple {1703#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {1692#false} is VALID [2020-07-18 00:23:38,300 INFO L280 TraceCheckUtils]: 27: Hoare triple {1692#false} havoc #t~mem12; {1692#false} is VALID [2020-07-18 00:23:38,300 INFO L280 TraceCheckUtils]: 28: Hoare triple {1692#false} assume !false; {1692#false} is VALID [2020-07-18 00:23:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:38,303 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:38,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [265622538] [2020-07-18 00:23:38,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:38,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-18 00:23:38,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696530247] [2020-07-18 00:23:38,304 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-07-18 00:23:38,305 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:38,305 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-18 00:23:38,341 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:38,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-18 00:23:38,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:38,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-18 00:23:38,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-18 00:23:38,343 INFO L87 Difference]: Start difference. First operand 98 states and 101 transitions. Second operand 9 states. [2020-07-18 00:23:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:39,934 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2020-07-18 00:23:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-18 00:23:39,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-07-18 00:23:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 00:23:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 152 transitions. [2020-07-18 00:23:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-18 00:23:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 152 transitions. [2020-07-18 00:23:39,942 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 152 transitions. [2020-07-18 00:23:40,150 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 152 edges. 152 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:40,156 INFO L225 Difference]: With dead ends: 146 [2020-07-18 00:23:40,156 INFO L226 Difference]: Without dead ends: 143 [2020-07-18 00:23:40,157 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-07-18 00:23:40,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-18 00:23:40,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2020-07-18 00:23:40,575 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:40,575 INFO L82 GeneralOperation]: Start isEquivalent. First operand 143 states. Second operand 107 states. [2020-07-18 00:23:40,575 INFO L74 IsIncluded]: Start isIncluded. First operand 143 states. Second operand 107 states. [2020-07-18 00:23:40,576 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 107 states. [2020-07-18 00:23:40,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:40,583 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2020-07-18 00:23:40,583 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 149 transitions. [2020-07-18 00:23:40,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:40,584 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:40,584 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 143 states. [2020-07-18 00:23:40,585 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 143 states. [2020-07-18 00:23:40,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:40,592 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2020-07-18 00:23:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 149 transitions. [2020-07-18 00:23:40,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:40,593 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:40,593 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:40,593 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-18 00:23:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-18 00:23:40,598 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 29 [2020-07-18 00:23:40,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:40,598 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-18 00:23:40,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-18 00:23:40,599 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-18 00:23:40,798 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:40,798 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-18 00:23:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-18 00:23:40,799 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:40,800 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] [2020-07-18 00:23:40,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-18 00:23:40,800 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]=== [2020-07-18 00:23:40,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:40,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1026590761, now seen corresponding path program 1 times [2020-07-18 00:23:40,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:40,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178342626] [2020-07-18 00:23:40,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:41,010 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 [2020-07-18 00:23:41,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {2513#true} #valid := #valid[0 := 0]; {2513#true} is VALID [2020-07-18 00:23:41,010 INFO L280 TraceCheckUtils]: 2: Hoare triple {2513#true} assume 0 < #StackHeapBarrier; {2513#true} is VALID [2020-07-18 00:23:41,011 INFO L280 TraceCheckUtils]: 3: Hoare triple {2513#true} assume true; {2513#true} is VALID [2020-07-18 00:23:41,011 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {2513#true} {2513#true} #260#return; {2513#true} is VALID [2020-07-18 00:23:41,012 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 [2020-07-18 00:23:41,013 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 [2020-07-18 00:23:41,013 INFO L280 TraceCheckUtils]: 2: Hoare triple {2513#true} #valid := #valid[0 := 0]; {2513#true} is VALID [2020-07-18 00:23:41,013 INFO L280 TraceCheckUtils]: 3: Hoare triple {2513#true} assume 0 < #StackHeapBarrier; {2513#true} is VALID [2020-07-18 00:23:41,013 INFO L280 TraceCheckUtils]: 4: Hoare triple {2513#true} assume true; {2513#true} is VALID [2020-07-18 00:23:41,014 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {2513#true} {2513#true} #260#return; {2513#true} is VALID [2020-07-18 00:23:41,014 INFO L263 TraceCheckUtils]: 6: Hoare triple {2513#true} call #t~ret21 := main(); {2513#true} is VALID [2020-07-18 00:23:41,014 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 [2020-07-18 00:23:41,014 INFO L280 TraceCheckUtils]: 8: Hoare triple {2513#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {2513#true} is VALID [2020-07-18 00:23:41,015 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 [2020-07-18 00:23:41,015 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 [2020-07-18 00:23:41,016 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 [2020-07-18 00:23:41,016 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 [2020-07-18 00:23:41,016 INFO L280 TraceCheckUtils]: 13: Hoare triple {2513#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {2513#true} is VALID [2020-07-18 00:23:41,016 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 [2020-07-18 00:23:41,017 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 [2020-07-18 00:23:41,017 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 [2020-07-18 00:23:41,017 INFO L280 TraceCheckUtils]: 17: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2513#true} is VALID [2020-07-18 00:23:41,017 INFO L280 TraceCheckUtils]: 18: Hoare triple {2513#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {2513#true} is VALID [2020-07-18 00:23:41,018 INFO L280 TraceCheckUtils]: 19: Hoare triple {2513#true} assume !(0 != #t~nondet2); {2513#true} is VALID [2020-07-18 00:23:41,018 INFO L280 TraceCheckUtils]: 20: Hoare triple {2513#true} havoc #t~nondet2; {2513#true} is VALID [2020-07-18 00:23:41,018 INFO L280 TraceCheckUtils]: 21: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~null~0.base, ~null~0.offset; {2513#true} is VALID [2020-07-18 00:23:41,018 INFO L280 TraceCheckUtils]: 22: Hoare triple {2513#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {2513#true} is VALID [2020-07-18 00:23:41,019 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 [2020-07-18 00:23:41,019 INFO L280 TraceCheckUtils]: 24: Hoare triple {2513#true} goto; {2513#true} is VALID [2020-07-18 00:23:41,021 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 [2020-07-18 00:23:41,024 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 [2020-07-18 00:23:41,026 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 [2020-07-18 00:23:41,027 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 [2020-07-18 00:23:41,028 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 [2020-07-18 00:23:41,029 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 [2020-07-18 00:23:41,029 INFO L280 TraceCheckUtils]: 31: Hoare triple {2522#(= ~unnamed1~0~BLACK |main_#t~mem13|)} assume ~unnamed1~0~RED == #t~mem13; {2514#false} is VALID [2020-07-18 00:23:41,030 INFO L280 TraceCheckUtils]: 32: Hoare triple {2514#false} havoc #t~mem13; {2514#false} is VALID [2020-07-18 00:23:41,030 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 [2020-07-18 00:23:41,030 INFO L280 TraceCheckUtils]: 34: Hoare triple {2514#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {2514#false} is VALID [2020-07-18 00:23:41,030 INFO L280 TraceCheckUtils]: 35: Hoare triple {2514#false} havoc #t~mem14.base, #t~mem14.offset; {2514#false} is VALID [2020-07-18 00:23:41,031 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 [2020-07-18 00:23:41,031 INFO L280 TraceCheckUtils]: 37: Hoare triple {2514#false} assume !false; {2514#false} is VALID [2020-07-18 00:23:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:41,035 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:41,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178342626] [2020-07-18 00:23:41,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:41,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-18 00:23:41,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296410038] [2020-07-18 00:23:41,037 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-18 00:23:41,037 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:41,037 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-18 00:23:41,080 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:41,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-18 00:23:41,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:41,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-18 00:23:41,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:23:41,082 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 6 states. [2020-07-18 00:23:42,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:42,162 INFO L93 Difference]: Finished difference Result 140 states and 146 transitions. [2020-07-18 00:23:42,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-18 00:23:42,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-18 00:23:42,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:23:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-18 00:23:42,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-18 00:23:42,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 141 transitions. [2020-07-18 00:23:42,169 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 141 transitions. [2020-07-18 00:23:42,308 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:42,311 INFO L225 Difference]: With dead ends: 140 [2020-07-18 00:23:42,311 INFO L226 Difference]: Without dead ends: 118 [2020-07-18 00:23:42,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-18 00:23:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-07-18 00:23:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2020-07-18 00:23:42,706 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:42,706 INFO L82 GeneralOperation]: Start isEquivalent. First operand 118 states. Second operand 110 states. [2020-07-18 00:23:42,706 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 110 states. [2020-07-18 00:23:42,706 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 110 states. [2020-07-18 00:23:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:42,711 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-18 00:23:42,711 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-18 00:23:42,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:42,711 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:42,712 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 118 states. [2020-07-18 00:23:42,712 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 118 states. [2020-07-18 00:23:42,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:42,716 INFO L93 Difference]: Finished difference Result 118 states and 122 transitions. [2020-07-18 00:23:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 122 transitions. [2020-07-18 00:23:42,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:42,717 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:42,717 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:42,717 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-18 00:23:42,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2020-07-18 00:23:42,721 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 38 [2020-07-18 00:23:42,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:42,721 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2020-07-18 00:23:42,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-18 00:23:42,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 110 states and 114 transitions. [2020-07-18 00:23:42,920 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 114 edges. 114 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2020-07-18 00:23:42,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-18 00:23:42,921 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:42,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:23:42,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-18 00:23:42,922 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]=== [2020-07-18 00:23:42,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:42,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1637573847, now seen corresponding path program 1 times [2020-07-18 00:23:42,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:42,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [889911325] [2020-07-18 00:23:42,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:43,018 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 [2020-07-18 00:23:43,019 INFO L280 TraceCheckUtils]: 1: Hoare triple {3266#true} #valid := #valid[0 := 0]; {3266#true} is VALID [2020-07-18 00:23:43,019 INFO L280 TraceCheckUtils]: 2: Hoare triple {3266#true} assume 0 < #StackHeapBarrier; {3266#true} is VALID [2020-07-18 00:23:43,019 INFO L280 TraceCheckUtils]: 3: Hoare triple {3266#true} assume true; {3266#true} is VALID [2020-07-18 00:23:43,019 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3266#true} {3266#true} #260#return; {3266#true} is VALID [2020-07-18 00:23:43,021 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 [2020-07-18 00:23:43,021 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 [2020-07-18 00:23:43,022 INFO L280 TraceCheckUtils]: 2: Hoare triple {3266#true} #valid := #valid[0 := 0]; {3266#true} is VALID [2020-07-18 00:23:43,022 INFO L280 TraceCheckUtils]: 3: Hoare triple {3266#true} assume 0 < #StackHeapBarrier; {3266#true} is VALID [2020-07-18 00:23:43,022 INFO L280 TraceCheckUtils]: 4: Hoare triple {3266#true} assume true; {3266#true} is VALID [2020-07-18 00:23:43,022 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3266#true} {3266#true} #260#return; {3266#true} is VALID [2020-07-18 00:23:43,023 INFO L263 TraceCheckUtils]: 6: Hoare triple {3266#true} call #t~ret21 := main(); {3266#true} is VALID [2020-07-18 00:23:43,023 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 [2020-07-18 00:23:43,023 INFO L280 TraceCheckUtils]: 8: Hoare triple {3266#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3266#true} is VALID [2020-07-18 00:23:43,024 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 [2020-07-18 00:23:43,024 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 [2020-07-18 00:23:43,024 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 [2020-07-18 00:23:43,024 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 [2020-07-18 00:23:43,024 INFO L280 TraceCheckUtils]: 13: Hoare triple {3266#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3266#true} is VALID [2020-07-18 00:23:43,025 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 [2020-07-18 00:23:43,025 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 [2020-07-18 00:23:43,025 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 [2020-07-18 00:23:43,025 INFO L280 TraceCheckUtils]: 17: Hoare triple {3266#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3266#true} is VALID [2020-07-18 00:23:43,026 INFO L280 TraceCheckUtils]: 18: Hoare triple {3266#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3266#true} is VALID [2020-07-18 00:23:43,026 INFO L280 TraceCheckUtils]: 19: Hoare triple {3266#true} assume !!(0 != #t~nondet2); {3266#true} is VALID [2020-07-18 00:23:43,026 INFO L280 TraceCheckUtils]: 20: Hoare triple {3266#true} havoc #t~nondet2; {3266#true} is VALID [2020-07-18 00:23:43,026 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 [2020-07-18 00:23:43,026 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 [2020-07-18 00:23:43,027 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 [2020-07-18 00:23:43,027 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 [2020-07-18 00:23:43,027 INFO L280 TraceCheckUtils]: 25: Hoare triple {3266#true} havoc #t~mem4.base, #t~mem4.offset; {3266#true} is VALID [2020-07-18 00:23:43,027 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 [2020-07-18 00:23:43,028 INFO L280 TraceCheckUtils]: 27: Hoare triple {3266#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3266#true} is VALID [2020-07-18 00:23:43,028 INFO L280 TraceCheckUtils]: 28: Hoare triple {3266#true} havoc #t~mem5.base, #t~mem5.offset; {3266#true} is VALID [2020-07-18 00:23:43,028 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 [2020-07-18 00:23:43,028 INFO L280 TraceCheckUtils]: 30: Hoare triple {3266#true} assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; {3266#true} is VALID [2020-07-18 00:23:43,028 INFO L280 TraceCheckUtils]: 31: Hoare triple {3266#true} assume 0 != #t~nondet6; {3266#true} is VALID [2020-07-18 00:23:43,029 INFO L280 TraceCheckUtils]: 32: Hoare triple {3266#true} havoc #t~nondet6; {3266#true} is VALID [2020-07-18 00:23:43,030 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 [2020-07-18 00:23:43,030 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 [2020-07-18 00:23:43,031 INFO L280 TraceCheckUtils]: 35: Hoare triple {3274#(= ~unnamed1~0~BLACK |main_#t~mem10|)} assume !(~unnamed1~0~BLACK == #t~mem10); {3267#false} is VALID [2020-07-18 00:23:43,031 INFO L280 TraceCheckUtils]: 36: Hoare triple {3267#false} havoc #t~mem10; {3267#false} is VALID [2020-07-18 00:23:43,031 INFO L280 TraceCheckUtils]: 37: Hoare triple {3267#false} assume !false; {3267#false} is VALID [2020-07-18 00:23:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:43,033 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:43,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [889911325] [2020-07-18 00:23:43,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:43,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:23:43,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556995147] [2020-07-18 00:23:43,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-18 00:23:43,035 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:43,035 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:23:43,076 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:43,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:23:43,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:43,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:23:43,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:23:43,078 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand 5 states. [2020-07-18 00:23:43,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:43,942 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2020-07-18 00:23:43,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-18 00:23:43,943 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2020-07-18 00:23:43,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:43,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:23:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-18 00:23:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:23:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-18 00:23:43,948 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 111 transitions. [2020-07-18 00:23:44,072 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:44,075 INFO L225 Difference]: With dead ends: 115 [2020-07-18 00:23:44,075 INFO L226 Difference]: Without dead ends: 112 [2020-07-18 00:23:44,075 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:23:44,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-18 00:23:44,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-07-18 00:23:44,510 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:44,511 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 107 states. [2020-07-18 00:23:44,511 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 107 states. [2020-07-18 00:23:44,511 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 107 states. [2020-07-18 00:23:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:44,516 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-18 00:23:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-18 00:23:44,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:44,517 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:44,517 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 112 states. [2020-07-18 00:23:44,518 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 112 states. [2020-07-18 00:23:44,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:44,521 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2020-07-18 00:23:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 116 transitions. [2020-07-18 00:23:44,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:44,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:44,522 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:44,522 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:44,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-07-18 00:23:44,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2020-07-18 00:23:44,526 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 38 [2020-07-18 00:23:44,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:44,527 INFO L479 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2020-07-18 00:23:44,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:23:44,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 107 states and 111 transitions. [2020-07-18 00:23:44,715 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-18 00:23:44,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-18 00:23:44,716 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:44,716 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] [2020-07-18 00:23:44,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-18 00:23:44,717 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]=== [2020-07-18 00:23:44,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:44,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1162057661, now seen corresponding path program 1 times [2020-07-18 00:23:44,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:44,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469698967] [2020-07-18 00:23:44,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:44,841 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 [2020-07-18 00:23:44,842 INFO L280 TraceCheckUtils]: 1: Hoare triple {3948#true} #valid := #valid[0 := 0]; {3948#true} is VALID [2020-07-18 00:23:44,844 INFO L280 TraceCheckUtils]: 2: Hoare triple {3948#true} assume 0 < #StackHeapBarrier; {3948#true} is VALID [2020-07-18 00:23:44,844 INFO L280 TraceCheckUtils]: 3: Hoare triple {3948#true} assume true; {3948#true} is VALID [2020-07-18 00:23:44,845 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {3948#true} {3948#true} #260#return; {3948#true} is VALID [2020-07-18 00:23:44,846 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 [2020-07-18 00:23:44,846 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 [2020-07-18 00:23:44,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {3948#true} #valid := #valid[0 := 0]; {3948#true} is VALID [2020-07-18 00:23:44,847 INFO L280 TraceCheckUtils]: 3: Hoare triple {3948#true} assume 0 < #StackHeapBarrier; {3948#true} is VALID [2020-07-18 00:23:44,847 INFO L280 TraceCheckUtils]: 4: Hoare triple {3948#true} assume true; {3948#true} is VALID [2020-07-18 00:23:44,847 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {3948#true} {3948#true} #260#return; {3948#true} is VALID [2020-07-18 00:23:44,848 INFO L263 TraceCheckUtils]: 6: Hoare triple {3948#true} call #t~ret21 := main(); {3948#true} is VALID [2020-07-18 00:23:44,848 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 [2020-07-18 00:23:44,848 INFO L280 TraceCheckUtils]: 8: Hoare triple {3948#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {3948#true} is VALID [2020-07-18 00:23:44,848 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 [2020-07-18 00:23:44,849 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 [2020-07-18 00:23:44,849 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 [2020-07-18 00:23:44,854 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 [2020-07-18 00:23:44,855 INFO L280 TraceCheckUtils]: 13: Hoare triple {3948#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {3948#true} is VALID [2020-07-18 00:23:44,855 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 [2020-07-18 00:23:44,855 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 [2020-07-18 00:23:44,856 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 [2020-07-18 00:23:44,856 INFO L280 TraceCheckUtils]: 17: Hoare triple {3948#true} ~end~0.base, ~end~0.offset := ~list~0.base, ~list~0.offset; {3948#true} is VALID [2020-07-18 00:23:44,856 INFO L280 TraceCheckUtils]: 18: Hoare triple {3948#true} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {3948#true} is VALID [2020-07-18 00:23:44,857 INFO L280 TraceCheckUtils]: 19: Hoare triple {3948#true} assume !!(0 != #t~nondet2); {3948#true} is VALID [2020-07-18 00:23:44,857 INFO L280 TraceCheckUtils]: 20: Hoare triple {3948#true} havoc #t~nondet2; {3948#true} is VALID [2020-07-18 00:23:44,857 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 [2020-07-18 00:23:44,858 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 [2020-07-18 00:23:44,858 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 [2020-07-18 00:23:44,862 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 [2020-07-18 00:23:44,862 INFO L280 TraceCheckUtils]: 25: Hoare triple {3948#true} havoc #t~mem4.base, #t~mem4.offset; {3948#true} is VALID [2020-07-18 00:23:44,862 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 [2020-07-18 00:23:44,863 INFO L280 TraceCheckUtils]: 27: Hoare triple {3948#true} ~end~0.base, ~end~0.offset := #t~mem5.base, #t~mem5.offset; {3948#true} is VALID [2020-07-18 00:23:44,863 INFO L280 TraceCheckUtils]: 28: Hoare triple {3948#true} havoc #t~mem5.base, #t~mem5.offset; {3948#true} is VALID [2020-07-18 00:23:44,868 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 [2020-07-18 00:23:44,869 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 [2020-07-18 00:23:44,870 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 [2020-07-18 00:23:44,871 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 [2020-07-18 00:23:44,872 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 [2020-07-18 00:23:44,873 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 [2020-07-18 00:23:44,874 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 [2020-07-18 00:23:44,875 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 [2020-07-18 00:23:44,875 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 [2020-07-18 00:23:44,876 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 [2020-07-18 00:23:44,877 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 [2020-07-18 00:23:44,878 INFO L280 TraceCheckUtils]: 40: Hoare triple {3949#false} havoc #t~mem11.base, #t~mem11.offset; {3949#false} is VALID [2020-07-18 00:23:44,878 INFO L280 TraceCheckUtils]: 41: Hoare triple {3949#false} assume !false; {3949#false} is VALID [2020-07-18 00:23:44,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:44,885 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:44,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469698967] [2020-07-18 00:23:44,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:44,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-18 00:23:44,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354974034] [2020-07-18 00:23:44,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-18 00:23:44,888 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:44,889 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-18 00:23:44,938 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:44,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-18 00:23:44,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:44,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-18 00:23:44,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-18 00:23:44,940 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand 5 states. [2020-07-18 00:23:45,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:45,864 INFO L93 Difference]: Finished difference Result 110 states and 114 transitions. [2020-07-18 00:23:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-18 00:23:45,865 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2020-07-18 00:23:45,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:23:45,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-18 00:23:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-18 00:23:45,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 106 transitions. [2020-07-18 00:23:45,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 106 transitions. [2020-07-18 00:23:46,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:46,032 INFO L225 Difference]: With dead ends: 110 [2020-07-18 00:23:46,033 INFO L226 Difference]: Without dead ends: 107 [2020-07-18 00:23:46,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-18 00:23:46,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-07-18 00:23:46,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2020-07-18 00:23:46,412 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:46,412 INFO L82 GeneralOperation]: Start isEquivalent. First operand 107 states. Second operand 104 states. [2020-07-18 00:23:46,413 INFO L74 IsIncluded]: Start isIncluded. First operand 107 states. Second operand 104 states. [2020-07-18 00:23:46,413 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 104 states. [2020-07-18 00:23:46,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:46,416 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-18 00:23:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-18 00:23:46,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:46,417 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:46,417 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 107 states. [2020-07-18 00:23:46,417 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 107 states. [2020-07-18 00:23:46,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:46,421 INFO L93 Difference]: Finished difference Result 107 states and 111 transitions. [2020-07-18 00:23:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2020-07-18 00:23:46,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:46,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:46,422 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:46,422 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-18 00:23:46,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 108 transitions. [2020-07-18 00:23:46,425 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 108 transitions. Word has length 42 [2020-07-18 00:23:46,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:46,426 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 108 transitions. [2020-07-18 00:23:46,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-18 00:23:46,426 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 108 transitions. [2020-07-18 00:23:46,629 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 108 edges. 108 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:46,629 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 108 transitions. [2020-07-18 00:23:46,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-18 00:23:46,630 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:46,631 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] [2020-07-18 00:23:46,631 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-18 00:23:46,631 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]=== [2020-07-18 00:23:46,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:46,632 INFO L82 PathProgramCache]: Analyzing trace with hash -41137780, now seen corresponding path program 1 times [2020-07-18 00:23:46,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:46,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [381242537] [2020-07-18 00:23:46,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:46,974 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 [2020-07-18 00:23:46,974 INFO L280 TraceCheckUtils]: 1: Hoare triple {4604#true} #valid := #valid[0 := 0]; {4604#true} is VALID [2020-07-18 00:23:46,975 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} assume 0 < #StackHeapBarrier; {4604#true} is VALID [2020-07-18 00:23:46,975 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-18 00:23:46,975 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {4604#true} {4604#true} #260#return; {4604#true} is VALID [2020-07-18 00:23:46,976 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 [2020-07-18 00:23:46,977 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 [2020-07-18 00:23:46,977 INFO L280 TraceCheckUtils]: 2: Hoare triple {4604#true} #valid := #valid[0 := 0]; {4604#true} is VALID [2020-07-18 00:23:46,977 INFO L280 TraceCheckUtils]: 3: Hoare triple {4604#true} assume 0 < #StackHeapBarrier; {4604#true} is VALID [2020-07-18 00:23:46,977 INFO L280 TraceCheckUtils]: 4: Hoare triple {4604#true} assume true; {4604#true} is VALID [2020-07-18 00:23:46,978 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {4604#true} {4604#true} #260#return; {4604#true} is VALID [2020-07-18 00:23:46,978 INFO L263 TraceCheckUtils]: 6: Hoare triple {4604#true} call #t~ret21 := main(); {4604#true} is VALID [2020-07-18 00:23:46,979 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 [2020-07-18 00:23:46,980 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 [2020-07-18 00:23:46,981 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 [2020-07-18 00:23:46,981 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 [2020-07-18 00:23:46,982 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 [2020-07-18 00:23:46,984 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 [2020-07-18 00:23:46,985 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 [2020-07-18 00:23:46,987 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 [2020-07-18 00:23:46,988 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 [2020-07-18 00:23:46,989 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 [2020-07-18 00:23:46,991 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 [2020-07-18 00:23:46,992 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 [2020-07-18 00:23:46,993 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 [2020-07-18 00:23:46,994 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 [2020-07-18 00:23:46,996 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 [2020-07-18 00:23:46,997 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 [2020-07-18 00:23:46,998 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 [2020-07-18 00:23:46,999 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 [2020-07-18 00:23:47,000 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 [2020-07-18 00:23:47,001 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 [2020-07-18 00:23:47,001 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 [2020-07-18 00:23:47,002 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 [2020-07-18 00:23:47,003 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 [2020-07-18 00:23:47,004 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 [2020-07-18 00:23:47,004 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 [2020-07-18 00:23:47,005 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 [2020-07-18 00:23:47,006 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 [2020-07-18 00:23:47,007 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 [2020-07-18 00:23:47,008 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 [2020-07-18 00:23:47,009 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 [2020-07-18 00:23:47,010 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 [2020-07-18 00:23:47,010 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 [2020-07-18 00:23:47,011 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 [2020-07-18 00:23:47,012 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 [2020-07-18 00:23:47,013 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 [2020-07-18 00:23:47,014 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 [2020-07-18 00:23:47,014 INFO L280 TraceCheckUtils]: 43: Hoare triple {4605#false} assume !false; {4605#false} is VALID [2020-07-18 00:23:47,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:47,021 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:47,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [381242537] [2020-07-18 00:23:47,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:47,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-07-18 00:23:47,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141218138] [2020-07-18 00:23:47,022 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-18 00:23:47,023 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:47,023 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-18 00:23:47,090 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:47,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-18 00:23:47,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:47,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-18 00:23:47,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-18 00:23:47,091 INFO L87 Difference]: Start difference. First operand 104 states and 108 transitions. Second operand 14 states. [2020-07-18 00:23:50,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:50,037 INFO L93 Difference]: Finished difference Result 154 states and 160 transitions. [2020-07-18 00:23:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-18 00:23:50,037 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2020-07-18 00:23:50,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:50,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-18 00:23:50,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-18 00:23:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-18 00:23:50,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 155 transitions. [2020-07-18 00:23:50,045 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 155 transitions. [2020-07-18 00:23:50,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 155 edges. 155 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:50,240 INFO L225 Difference]: With dead ends: 154 [2020-07-18 00:23:50,241 INFO L226 Difference]: Without dead ends: 152 [2020-07-18 00:23:50,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-07-18 00:23:50,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-07-18 00:23:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 127. [2020-07-18 00:23:50,849 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:50,849 INFO L82 GeneralOperation]: Start isEquivalent. First operand 152 states. Second operand 127 states. [2020-07-18 00:23:50,849 INFO L74 IsIncluded]: Start isIncluded. First operand 152 states. Second operand 127 states. [2020-07-18 00:23:50,849 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 127 states. [2020-07-18 00:23:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:50,855 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-18 00:23:50,855 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-18 00:23:50,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:50,856 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:50,856 INFO L74 IsIncluded]: Start isIncluded. First operand 127 states. Second operand 152 states. [2020-07-18 00:23:50,856 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 152 states. [2020-07-18 00:23:50,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:50,861 INFO L93 Difference]: Finished difference Result 152 states and 158 transitions. [2020-07-18 00:23:50,861 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 158 transitions. [2020-07-18 00:23:50,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:50,862 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:50,862 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:50,862 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-18 00:23:50,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 132 transitions. [2020-07-18 00:23:50,866 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 132 transitions. Word has length 44 [2020-07-18 00:23:50,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:50,866 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 132 transitions. [2020-07-18 00:23:50,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-18 00:23:50,866 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 127 states and 132 transitions. [2020-07-18 00:23:51,134 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 132 transitions. [2020-07-18 00:23:51,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-18 00:23:51,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:51,136 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] [2020-07-18 00:23:51,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-18 00:23:51,137 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]=== [2020-07-18 00:23:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:51,138 INFO L82 PathProgramCache]: Analyzing trace with hash 784866741, now seen corresponding path program 1 times [2020-07-18 00:23:51,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:51,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803702063] [2020-07-18 00:23:51,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:51,343 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 [2020-07-18 00:23:51,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {5511#true} #valid := #valid[0 := 0]; {5511#true} is VALID [2020-07-18 00:23:51,343 INFO L280 TraceCheckUtils]: 2: Hoare triple {5511#true} assume 0 < #StackHeapBarrier; {5511#true} is VALID [2020-07-18 00:23:51,344 INFO L280 TraceCheckUtils]: 3: Hoare triple {5511#true} assume true; {5511#true} is VALID [2020-07-18 00:23:51,344 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {5511#true} {5511#true} #260#return; {5511#true} is VALID [2020-07-18 00:23:51,344 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 [2020-07-18 00:23:51,345 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 [2020-07-18 00:23:51,345 INFO L280 TraceCheckUtils]: 2: Hoare triple {5511#true} #valid := #valid[0 := 0]; {5511#true} is VALID [2020-07-18 00:23:51,345 INFO L280 TraceCheckUtils]: 3: Hoare triple {5511#true} assume 0 < #StackHeapBarrier; {5511#true} is VALID [2020-07-18 00:23:51,345 INFO L280 TraceCheckUtils]: 4: Hoare triple {5511#true} assume true; {5511#true} is VALID [2020-07-18 00:23:51,345 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {5511#true} {5511#true} #260#return; {5511#true} is VALID [2020-07-18 00:23:51,345 INFO L263 TraceCheckUtils]: 6: Hoare triple {5511#true} call #t~ret21 := main(); {5511#true} is VALID [2020-07-18 00:23:51,346 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 [2020-07-18 00:23:51,346 INFO L280 TraceCheckUtils]: 8: Hoare triple {5511#true} ~null~0.base, ~null~0.offset := #t~malloc0.base, #t~malloc0.offset; {5511#true} is VALID [2020-07-18 00:23:51,346 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 [2020-07-18 00:23:51,346 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 [2020-07-18 00:23:51,346 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 [2020-07-18 00:23:51,346 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 [2020-07-18 00:23:51,346 INFO L280 TraceCheckUtils]: 13: Hoare triple {5511#true} ~list~0.base, ~list~0.offset := #t~malloc1.base, #t~malloc1.offset; {5511#true} is VALID [2020-07-18 00:23:51,347 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 [2020-07-18 00:23:51,352 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 [2020-07-18 00:23:51,353 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 [2020-07-18 00:23:51,354 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 [2020-07-18 00:23:51,355 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 [2020-07-18 00:23:51,355 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 [2020-07-18 00:23:51,356 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 [2020-07-18 00:23:51,356 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 [2020-07-18 00:23:51,357 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 [2020-07-18 00:23:51,358 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 [2020-07-18 00:23:51,358 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 [2020-07-18 00:23:51,359 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 [2020-07-18 00:23:51,359 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 [2020-07-18 00:23:51,360 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 [2020-07-18 00:23:51,360 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 [2020-07-18 00:23:51,361 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 [2020-07-18 00:23:51,362 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 [2020-07-18 00:23:51,362 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 [2020-07-18 00:23:51,363 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 [2020-07-18 00:23:51,364 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 [2020-07-18 00:23:51,365 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 [2020-07-18 00:23:51,366 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 [2020-07-18 00:23:51,366 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 [2020-07-18 00:23:51,366 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 [2020-07-18 00:23:51,366 INFO L280 TraceCheckUtils]: 38: Hoare triple {5512#false} assume ~unnamed1~0~RED == #t~mem13; {5512#false} is VALID [2020-07-18 00:23:51,367 INFO L280 TraceCheckUtils]: 39: Hoare triple {5512#false} havoc #t~mem13; {5512#false} is VALID [2020-07-18 00:23:51,367 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 [2020-07-18 00:23:51,367 INFO L280 TraceCheckUtils]: 41: Hoare triple {5512#false} ~end~0.base, ~end~0.offset := #t~mem14.base, #t~mem14.offset; {5512#false} is VALID [2020-07-18 00:23:51,367 INFO L280 TraceCheckUtils]: 42: Hoare triple {5512#false} havoc #t~mem14.base, #t~mem14.offset; {5512#false} is VALID [2020-07-18 00:23:51,368 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 [2020-07-18 00:23:51,368 INFO L280 TraceCheckUtils]: 44: Hoare triple {5512#false} assume !false; {5512#false} is VALID [2020-07-18 00:23:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:51,377 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:51,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803702063] [2020-07-18 00:23:51,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:51,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-18 00:23:51,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807203142] [2020-07-18 00:23:51,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-18 00:23:51,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:51,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-18 00:23:51,425 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:51,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-18 00:23:51,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:51,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-18 00:23:51,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-18 00:23:51,425 INFO L87 Difference]: Start difference. First operand 127 states and 132 transitions. Second operand 7 states. [2020-07-18 00:23:53,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:53,086 INFO L93 Difference]: Finished difference Result 159 states and 165 transitions. [2020-07-18 00:23:53,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-18 00:23:53,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-07-18 00:23:53,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 00:23:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-18 00:23:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-18 00:23:53,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2020-07-18 00:23:53,094 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 141 transitions. [2020-07-18 00:23:53,257 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 141 edges. 141 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:53,260 INFO L225 Difference]: With dead ends: 159 [2020-07-18 00:23:53,260 INFO L226 Difference]: Without dead ends: 120 [2020-07-18 00:23:53,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-18 00:23:53,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-18 00:23:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-18 00:23:53,836 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:23:53,836 INFO L82 GeneralOperation]: Start isEquivalent. First operand 120 states. Second operand 120 states. [2020-07-18 00:23:53,836 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-18 00:23:53,836 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-18 00:23:53,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:53,840 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-18 00:23:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-18 00:23:53,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:53,840 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:53,841 INFO L74 IsIncluded]: Start isIncluded. First operand 120 states. Second operand 120 states. [2020-07-18 00:23:53,841 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 120 states. [2020-07-18 00:23:53,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:53,844 INFO L93 Difference]: Finished difference Result 120 states and 124 transitions. [2020-07-18 00:23:53,845 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-18 00:23:53,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:23:53,845 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:23:53,845 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:23:53,845 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:23:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-18 00:23:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2020-07-18 00:23:53,849 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 45 [2020-07-18 00:23:53,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:23:53,849 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2020-07-18 00:23:53,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-18 00:23:53,850 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 120 states and 124 transitions. [2020-07-18 00:23:54,106 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:54,106 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2020-07-18 00:23:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-18 00:23:54,107 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:23:54,107 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] [2020-07-18 00:23:54,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-18 00:23:54,108 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]=== [2020-07-18 00:23:54,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:23:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1051665877, now seen corresponding path program 1 times [2020-07-18 00:23:54,108 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:23:54,109 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134455139] [2020-07-18 00:23:54,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:23:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:23:54,576 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 [2020-07-18 00:23:54,576 INFO L280 TraceCheckUtils]: 1: Hoare triple {6333#true} #valid := #valid[0 := 0]; {6333#true} is VALID [2020-07-18 00:23:54,577 INFO L280 TraceCheckUtils]: 2: Hoare triple {6333#true} assume 0 < #StackHeapBarrier; {6333#true} is VALID [2020-07-18 00:23:54,577 INFO L280 TraceCheckUtils]: 3: Hoare triple {6333#true} assume true; {6333#true} is VALID [2020-07-18 00:23:54,577 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {6333#true} {6333#true} #260#return; {6333#true} is VALID [2020-07-18 00:23:54,578 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 [2020-07-18 00:23:54,578 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 [2020-07-18 00:23:54,578 INFO L280 TraceCheckUtils]: 2: Hoare triple {6333#true} #valid := #valid[0 := 0]; {6333#true} is VALID [2020-07-18 00:23:54,578 INFO L280 TraceCheckUtils]: 3: Hoare triple {6333#true} assume 0 < #StackHeapBarrier; {6333#true} is VALID [2020-07-18 00:23:54,578 INFO L280 TraceCheckUtils]: 4: Hoare triple {6333#true} assume true; {6333#true} is VALID [2020-07-18 00:23:54,578 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {6333#true} {6333#true} #260#return; {6333#true} is VALID [2020-07-18 00:23:54,579 INFO L263 TraceCheckUtils]: 6: Hoare triple {6333#true} call #t~ret21 := main(); {6333#true} is VALID [2020-07-18 00:23:54,579 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 [2020-07-18 00:23:54,580 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 [2020-07-18 00:23:54,581 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 [2020-07-18 00:23:54,581 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 [2020-07-18 00:23:54,582 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 [2020-07-18 00:23:54,583 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 [2020-07-18 00:23:54,584 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 [2020-07-18 00:23:54,585 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 [2020-07-18 00:23:54,585 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 [2020-07-18 00:23:54,586 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 [2020-07-18 00:23:54,587 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 [2020-07-18 00:23:54,587 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 [2020-07-18 00:23:54,588 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 [2020-07-18 00:23:54,589 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 [2020-07-18 00:23:54,590 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 [2020-07-18 00:23:54,591 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 [2020-07-18 00:23:54,591 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 [2020-07-18 00:23:54,592 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 [2020-07-18 00:23:54,593 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 [2020-07-18 00:23:54,593 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 [2020-07-18 00:23:54,594 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 [2020-07-18 00:23:54,595 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 [2020-07-18 00:23:54,596 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 [2020-07-18 00:23:54,597 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 [2020-07-18 00:23:54,597 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 [2020-07-18 00:23:54,598 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 [2020-07-18 00:23:54,599 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 [2020-07-18 00:23:54,600 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 [2020-07-18 00:23:54,601 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 [2020-07-18 00:23:54,606 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 [2020-07-18 00:23:54,607 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 [2020-07-18 00:23:54,608 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 [2020-07-18 00:23:54,609 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 [2020-07-18 00:23:54,609 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 [2020-07-18 00:23:54,610 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 [2020-07-18 00:23:54,610 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 [2020-07-18 00:23:54,611 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 [2020-07-18 00:23:54,611 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 [2020-07-18 00:23:54,611 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 [2020-07-18 00:23:54,612 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 [2020-07-18 00:23:54,612 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 [2020-07-18 00:23:54,613 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 [2020-07-18 00:23:54,613 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 [2020-07-18 00:23:54,613 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 [2020-07-18 00:23:54,614 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 [2020-07-18 00:23:54,615 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 [2020-07-18 00:23:54,615 INFO L280 TraceCheckUtils]: 53: Hoare triple {6334#false} assume !false; {6334#false} is VALID [2020-07-18 00:23:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:23:54,620 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:23:54,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134455139] [2020-07-18 00:23:54,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:23:54,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-07-18 00:23:54,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974711279] [2020-07-18 00:23:54,621 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-18 00:23:54,622 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:23:54,622 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states. [2020-07-18 00:23:54,702 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:54,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-18 00:23:54,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:23:54,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-18 00:23:54,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2020-07-18 00:23:54,703 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand 19 states. [2020-07-18 00:23:59,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:23:59,563 INFO L93 Difference]: Finished difference Result 187 states and 195 transitions. [2020-07-18 00:23:59,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-18 00:23:59,563 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2020-07-18 00:23:59,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:23:59,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-18 00:23:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-18 00:23:59,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-18 00:23:59,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 174 transitions. [2020-07-18 00:23:59,569 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 174 transitions. [2020-07-18 00:23:59,839 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:23:59,846 INFO L225 Difference]: With dead ends: 187 [2020-07-18 00:23:59,847 INFO L226 Difference]: Without dead ends: 185 [2020-07-18 00:23:59,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2020-07-18 00:23:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-07-18 00:24:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 167. [2020-07-18 00:24:00,772 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:00,773 INFO L82 GeneralOperation]: Start isEquivalent. First operand 185 states. Second operand 167 states. [2020-07-18 00:24:00,773 INFO L74 IsIncluded]: Start isIncluded. First operand 185 states. Second operand 167 states. [2020-07-18 00:24:00,773 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 167 states. [2020-07-18 00:24:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:00,780 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-18 00:24:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-18 00:24:00,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:00,781 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:00,781 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 185 states. [2020-07-18 00:24:00,781 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 185 states. [2020-07-18 00:24:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:00,786 INFO L93 Difference]: Finished difference Result 185 states and 193 transitions. [2020-07-18 00:24:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 193 transitions. [2020-07-18 00:24:00,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:00,787 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:00,787 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:00,787 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-18 00:24:00,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2020-07-18 00:24:00,792 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 54 [2020-07-18 00:24:00,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:00,793 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2020-07-18 00:24:00,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-18 00:24:00,793 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 167 states and 174 transitions. [2020-07-18 00:24:01,222 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 174 edges. 174 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2020-07-18 00:24:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-18 00:24:01,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:01,223 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] [2020-07-18 00:24:01,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-18 00:24:01,223 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]=== [2020-07-18 00:24:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash 999535374, now seen corresponding path program 1 times [2020-07-18 00:24:01,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:01,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264343958] [2020-07-18 00:24:01,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:02,049 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 [2020-07-18 00:24:02,050 INFO L280 TraceCheckUtils]: 1: Hoare triple {7475#true} #valid := #valid[0 := 0]; {7475#true} is VALID [2020-07-18 00:24:02,050 INFO L280 TraceCheckUtils]: 2: Hoare triple {7475#true} assume 0 < #StackHeapBarrier; {7475#true} is VALID [2020-07-18 00:24:02,052 INFO L280 TraceCheckUtils]: 3: Hoare triple {7475#true} assume true; {7475#true} is VALID [2020-07-18 00:24:02,053 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {7475#true} {7475#true} #260#return; {7475#true} is VALID [2020-07-18 00:24:02,058 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 [2020-07-18 00:24:02,058 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 [2020-07-18 00:24:02,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {7475#true} #valid := #valid[0 := 0]; {7475#true} is VALID [2020-07-18 00:24:02,059 INFO L280 TraceCheckUtils]: 3: Hoare triple {7475#true} assume 0 < #StackHeapBarrier; {7475#true} is VALID [2020-07-18 00:24:02,059 INFO L280 TraceCheckUtils]: 4: Hoare triple {7475#true} assume true; {7475#true} is VALID [2020-07-18 00:24:02,060 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {7475#true} {7475#true} #260#return; {7475#true} is VALID [2020-07-18 00:24:02,060 INFO L263 TraceCheckUtils]: 6: Hoare triple {7475#true} call #t~ret21 := main(); {7475#true} is VALID [2020-07-18 00:24:02,060 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 [2020-07-18 00:24:02,061 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 [2020-07-18 00:24:02,061 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 [2020-07-18 00:24:02,061 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 [2020-07-18 00:24:02,061 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 [2020-07-18 00:24:02,064 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 [2020-07-18 00:24:02,066 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 [2020-07-18 00:24:02,067 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 [2020-07-18 00:24:02,068 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 [2020-07-18 00:24:02,069 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 [2020-07-18 00:24:02,070 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 [2020-07-18 00:24:02,071 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 [2020-07-18 00:24:02,072 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 [2020-07-18 00:24:02,073 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 [2020-07-18 00:24:02,075 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 [2020-07-18 00:24:02,076 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 [2020-07-18 00:24:02,077 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 [2020-07-18 00:24:02,079 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 [2020-07-18 00:24:02,080 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 [2020-07-18 00:24:02,081 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 [2020-07-18 00:24:02,082 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 [2020-07-18 00:24:02,083 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 [2020-07-18 00:24:02,085 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 [2020-07-18 00:24:02,086 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 [2020-07-18 00:24:02,087 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 [2020-07-18 00:24:02,087 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 [2020-07-18 00:24:02,088 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 [2020-07-18 00:24:02,089 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 [2020-07-18 00:24:02,090 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 [2020-07-18 00:24:02,091 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 [2020-07-18 00:24:02,092 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 [2020-07-18 00:24:02,092 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 [2020-07-18 00:24:02,093 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 [2020-07-18 00:24:02,094 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 [2020-07-18 00:24:02,095 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 [2020-07-18 00:24:02,097 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 [2020-07-18 00:24:02,097 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 [2020-07-18 00:24:02,098 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 [2020-07-18 00:24:02,099 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 [2020-07-18 00:24:02,100 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 [2020-07-18 00:24:02,101 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 [2020-07-18 00:24:02,102 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 [2020-07-18 00:24:02,103 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 [2020-07-18 00:24:02,103 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 [2020-07-18 00:24:02,104 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 [2020-07-18 00:24:02,104 INFO L280 TraceCheckUtils]: 52: Hoare triple {7495#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {7476#false} is VALID [2020-07-18 00:24:02,105 INFO L280 TraceCheckUtils]: 53: Hoare triple {7476#false} havoc #t~mem12; {7476#false} is VALID [2020-07-18 00:24:02,105 INFO L280 TraceCheckUtils]: 54: Hoare triple {7476#false} assume !false; {7476#false} is VALID [2020-07-18 00:24:02,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:24:02,116 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:24:02,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264343958] [2020-07-18 00:24:02,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:24:02,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-18 00:24:02,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747149393] [2020-07-18 00:24:02,117 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-07-18 00:24:02,118 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:24:02,118 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states. [2020-07-18 00:24:02,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:02,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-18 00:24:02,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:24:02,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-18 00:24:02,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-18 00:24:02,181 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 17 states. [2020-07-18 00:24:06,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:06,337 INFO L93 Difference]: Finished difference Result 224 states and 233 transitions. [2020-07-18 00:24:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-18 00:24:06,338 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-07-18 00:24:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:24:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-18 00:24:06,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 183 transitions. [2020-07-18 00:24:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-18 00:24:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 183 transitions. [2020-07-18 00:24:06,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 183 transitions. [2020-07-18 00:24:06,633 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 183 edges. 183 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:06,639 INFO L225 Difference]: With dead ends: 224 [2020-07-18 00:24:06,639 INFO L226 Difference]: Without dead ends: 221 [2020-07-18 00:24:06,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=252, Invalid=740, Unknown=0, NotChecked=0, Total=992 [2020-07-18 00:24:06,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-18 00:24:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 177. [2020-07-18 00:24:07,708 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:07,708 INFO L82 GeneralOperation]: Start isEquivalent. First operand 221 states. Second operand 177 states. [2020-07-18 00:24:07,708 INFO L74 IsIncluded]: Start isIncluded. First operand 221 states. Second operand 177 states. [2020-07-18 00:24:07,708 INFO L87 Difference]: Start difference. First operand 221 states. Second operand 177 states. [2020-07-18 00:24:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:07,714 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-18 00:24:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-18 00:24:07,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:07,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:07,715 INFO L74 IsIncluded]: Start isIncluded. First operand 177 states. Second operand 221 states. [2020-07-18 00:24:07,715 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 221 states. [2020-07-18 00:24:07,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:07,721 INFO L93 Difference]: Finished difference Result 221 states and 230 transitions. [2020-07-18 00:24:07,721 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 230 transitions. [2020-07-18 00:24:07,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:07,722 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:07,722 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:07,722 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:07,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-18 00:24:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 185 transitions. [2020-07-18 00:24:07,726 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 185 transitions. Word has length 55 [2020-07-18 00:24:07,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:07,726 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 185 transitions. [2020-07-18 00:24:07,727 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-18 00:24:07,727 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 177 states and 185 transitions. [2020-07-18 00:24:08,194 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 185 transitions. [2020-07-18 00:24:08,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-18 00:24:08,196 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:08,196 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] [2020-07-18 00:24:08,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-18 00:24:08,197 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]=== [2020-07-18 00:24:08,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:08,197 INFO L82 PathProgramCache]: Analyzing trace with hash 754417445, now seen corresponding path program 1 times [2020-07-18 00:24:08,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:08,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634450977] [2020-07-18 00:24:08,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:09,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:09,325 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 [2020-07-18 00:24:09,325 INFO L280 TraceCheckUtils]: 1: Hoare triple {8773#true} #valid := #valid[0 := 0]; {8773#true} is VALID [2020-07-18 00:24:09,325 INFO L280 TraceCheckUtils]: 2: Hoare triple {8773#true} assume 0 < #StackHeapBarrier; {8773#true} is VALID [2020-07-18 00:24:09,326 INFO L280 TraceCheckUtils]: 3: Hoare triple {8773#true} assume true; {8773#true} is VALID [2020-07-18 00:24:09,326 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {8773#true} {8773#true} #260#return; {8773#true} is VALID [2020-07-18 00:24:09,327 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 [2020-07-18 00:24:09,327 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 [2020-07-18 00:24:09,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {8773#true} #valid := #valid[0 := 0]; {8773#true} is VALID [2020-07-18 00:24:09,327 INFO L280 TraceCheckUtils]: 3: Hoare triple {8773#true} assume 0 < #StackHeapBarrier; {8773#true} is VALID [2020-07-18 00:24:09,327 INFO L280 TraceCheckUtils]: 4: Hoare triple {8773#true} assume true; {8773#true} is VALID [2020-07-18 00:24:09,328 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {8773#true} {8773#true} #260#return; {8773#true} is VALID [2020-07-18 00:24:09,328 INFO L263 TraceCheckUtils]: 6: Hoare triple {8773#true} call #t~ret21 := main(); {8773#true} is VALID [2020-07-18 00:24:09,330 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 [2020-07-18 00:24:09,330 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 [2020-07-18 00:24:09,330 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 [2020-07-18 00:24:09,331 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 [2020-07-18 00:24:09,331 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 [2020-07-18 00:24:09,332 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 [2020-07-18 00:24:09,332 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 [2020-07-18 00:24:09,333 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 [2020-07-18 00:24:09,334 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 [2020-07-18 00:24:09,335 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 [2020-07-18 00:24:09,336 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 [2020-07-18 00:24:09,337 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 [2020-07-18 00:24:09,337 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 [2020-07-18 00:24:09,338 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 [2020-07-18 00:24:09,340 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 [2020-07-18 00:24:09,341 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 [2020-07-18 00:24:09,342 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 [2020-07-18 00:24:09,344 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 [2020-07-18 00:24:09,345 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 [2020-07-18 00:24:09,353 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 [2020-07-18 00:24:09,354 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 [2020-07-18 00:24:09,355 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 [2020-07-18 00:24:09,356 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 [2020-07-18 00:24:09,357 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 [2020-07-18 00:24:09,358 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 [2020-07-18 00:24:09,359 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 [2020-07-18 00:24:09,360 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 [2020-07-18 00:24:09,362 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 [2020-07-18 00:24:09,363 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 [2020-07-18 00:24:09,364 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 [2020-07-18 00:24:09,366 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 [2020-07-18 00:24:09,366 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 [2020-07-18 00:24:09,367 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 [2020-07-18 00:24:09,368 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 [2020-07-18 00:24:09,369 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 [2020-07-18 00:24:09,370 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 [2020-07-18 00:24:09,371 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 [2020-07-18 00:24:09,372 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 [2020-07-18 00:24:09,372 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 [2020-07-18 00:24:09,373 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 [2020-07-18 00:24:09,374 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 [2020-07-18 00:24:09,374 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 [2020-07-18 00:24:09,375 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 [2020-07-18 00:24:09,376 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 [2020-07-18 00:24:09,377 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 [2020-07-18 00:24:09,377 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 [2020-07-18 00:24:09,378 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 [2020-07-18 00:24:09,379 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 [2020-07-18 00:24:09,379 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 [2020-07-18 00:24:09,380 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 [2020-07-18 00:24:09,381 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 [2020-07-18 00:24:09,382 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 [2020-07-18 00:24:09,382 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 [2020-07-18 00:24:09,383 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 [2020-07-18 00:24:09,383 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 [2020-07-18 00:24:09,384 INFO L280 TraceCheckUtils]: 62: Hoare triple {8799#(= ~unnamed1~0~BLACK |main_#t~mem12|)} assume !(~unnamed1~0~BLACK == #t~mem12); {8774#false} is VALID [2020-07-18 00:24:09,384 INFO L280 TraceCheckUtils]: 63: Hoare triple {8774#false} havoc #t~mem12; {8774#false} is VALID [2020-07-18 00:24:09,385 INFO L280 TraceCheckUtils]: 64: Hoare triple {8774#false} assume !false; {8774#false} is VALID [2020-07-18 00:24:09,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:24:09,403 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:24:09,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634450977] [2020-07-18 00:24:09,404 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:24:09,404 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-07-18 00:24:09,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756905164] [2020-07-18 00:24:09,404 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2020-07-18 00:24:09,405 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:24:09,405 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states. [2020-07-18 00:24:09,495 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:09,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-18 00:24:09,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:24:09,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-18 00:24:09,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2020-07-18 00:24:09,497 INFO L87 Difference]: Start difference. First operand 177 states and 185 transitions. Second operand 23 states. [2020-07-18 00:24:15,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:15,399 INFO L93 Difference]: Finished difference Result 254 states and 264 transitions. [2020-07-18 00:24:15,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-18 00:24:15,400 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2020-07-18 00:24:15,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:24:15,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-18 00:24:15,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 209 transitions. [2020-07-18 00:24:15,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-18 00:24:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 209 transitions. [2020-07-18 00:24:15,409 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states and 209 transitions. [2020-07-18 00:24:15,755 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:15,760 INFO L225 Difference]: With dead ends: 254 [2020-07-18 00:24:15,760 INFO L226 Difference]: Without dead ends: 251 [2020-07-18 00:24:15,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=436, Invalid=1544, Unknown=0, NotChecked=0, Total=1980 [2020-07-18 00:24:15,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-07-18 00:24:16,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 201. [2020-07-18 00:24:16,990 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:16,990 INFO L82 GeneralOperation]: Start isEquivalent. First operand 251 states. Second operand 201 states. [2020-07-18 00:24:16,990 INFO L74 IsIncluded]: Start isIncluded. First operand 251 states. Second operand 201 states. [2020-07-18 00:24:16,990 INFO L87 Difference]: Start difference. First operand 251 states. Second operand 201 states. [2020-07-18 00:24:16,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:16,996 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-18 00:24:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-18 00:24:16,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:16,997 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:16,997 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 251 states. [2020-07-18 00:24:16,997 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 251 states. [2020-07-18 00:24:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:17,004 INFO L93 Difference]: Finished difference Result 251 states and 261 transitions. [2020-07-18 00:24:17,004 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 261 transitions. [2020-07-18 00:24:17,004 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:17,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:17,005 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:17,005 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-18 00:24:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 210 transitions. [2020-07-18 00:24:17,010 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 210 transitions. Word has length 65 [2020-07-18 00:24:17,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:17,010 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 210 transitions. [2020-07-18 00:24:17,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-18 00:24:17,010 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 210 transitions. [2020-07-18 00:24:17,516 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 210 transitions. [2020-07-18 00:24:17,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-18 00:24:17,517 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:17,517 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] [2020-07-18 00:24:17,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-18 00:24:17,518 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]=== [2020-07-18 00:24:17,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:17,518 INFO L82 PathProgramCache]: Analyzing trace with hash -736103817, now seen corresponding path program 1 times [2020-07-18 00:24:17,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:17,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604011025] [2020-07-18 00:24:17,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:24:17,843 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 [2020-07-18 00:24:17,843 INFO L280 TraceCheckUtils]: 1: Hoare triple {10259#true} #valid := #valid[0 := 0]; {10259#true} is VALID [2020-07-18 00:24:17,843 INFO L280 TraceCheckUtils]: 2: Hoare triple {10259#true} assume 0 < #StackHeapBarrier; {10259#true} is VALID [2020-07-18 00:24:17,843 INFO L280 TraceCheckUtils]: 3: Hoare triple {10259#true} assume true; {10259#true} is VALID [2020-07-18 00:24:17,844 INFO L275 TraceCheckUtils]: 4: Hoare quadruple {10259#true} {10259#true} #260#return; {10259#true} is VALID [2020-07-18 00:24:17,846 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 [2020-07-18 00:24:17,846 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 [2020-07-18 00:24:17,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {10259#true} #valid := #valid[0 := 0]; {10259#true} is VALID [2020-07-18 00:24:17,847 INFO L280 TraceCheckUtils]: 3: Hoare triple {10259#true} assume 0 < #StackHeapBarrier; {10259#true} is VALID [2020-07-18 00:24:17,847 INFO L280 TraceCheckUtils]: 4: Hoare triple {10259#true} assume true; {10259#true} is VALID [2020-07-18 00:24:17,847 INFO L275 TraceCheckUtils]: 5: Hoare quadruple {10259#true} {10259#true} #260#return; {10259#true} is VALID [2020-07-18 00:24:17,847 INFO L263 TraceCheckUtils]: 6: Hoare triple {10259#true} call #t~ret21 := main(); {10259#true} is VALID [2020-07-18 00:24:17,848 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 [2020-07-18 00:24:17,849 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 [2020-07-18 00:24:17,849 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 [2020-07-18 00:24:17,850 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 [2020-07-18 00:24:17,850 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 [2020-07-18 00:24:17,851 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 [2020-07-18 00:24:17,852 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 [2020-07-18 00:24:17,852 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 [2020-07-18 00:24:17,853 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 [2020-07-18 00:24:17,853 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 [2020-07-18 00:24:17,854 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 [2020-07-18 00:24:17,854 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 [2020-07-18 00:24:17,854 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 [2020-07-18 00:24:17,855 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 [2020-07-18 00:24:17,856 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 [2020-07-18 00:24:17,856 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 [2020-07-18 00:24:17,857 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 [2020-07-18 00:24:17,857 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 [2020-07-18 00:24:17,857 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 [2020-07-18 00:24:17,858 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 [2020-07-18 00:24:17,858 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 [2020-07-18 00:24:17,858 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 [2020-07-18 00:24:17,859 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 [2020-07-18 00:24:17,859 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 [2020-07-18 00:24:17,859 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 [2020-07-18 00:24:17,860 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 [2020-07-18 00:24:17,860 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 [2020-07-18 00:24:17,861 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 [2020-07-18 00:24:17,861 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 [2020-07-18 00:24:17,861 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 [2020-07-18 00:24:17,862 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 [2020-07-18 00:24:17,862 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 [2020-07-18 00:24:17,862 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 [2020-07-18 00:24:17,863 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 [2020-07-18 00:24:17,863 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 [2020-07-18 00:24:17,864 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 [2020-07-18 00:24:17,864 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 [2020-07-18 00:24:17,864 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 [2020-07-18 00:24:17,865 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 [2020-07-18 00:24:17,865 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 [2020-07-18 00:24:17,866 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 [2020-07-18 00:24:17,866 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 [2020-07-18 00:24:17,867 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 [2020-07-18 00:24:17,868 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 [2020-07-18 00:24:17,869 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 [2020-07-18 00:24:17,870 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 [2020-07-18 00:24:17,870 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 [2020-07-18 00:24:17,870 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 [2020-07-18 00:24:17,871 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 [2020-07-18 00:24:17,871 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 [2020-07-18 00:24:17,871 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 [2020-07-18 00:24:17,872 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 [2020-07-18 00:24:17,872 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 [2020-07-18 00:24:17,873 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 [2020-07-18 00:24:17,873 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 [2020-07-18 00:24:17,873 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 [2020-07-18 00:24:17,874 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 [2020-07-18 00:24:17,874 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 [2020-07-18 00:24:17,874 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 [2020-07-18 00:24:17,875 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 [2020-07-18 00:24:17,875 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 [2020-07-18 00:24:17,876 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 [2020-07-18 00:24:17,876 INFO L280 TraceCheckUtils]: 69: Hoare triple {10260#false} assume !false; {10260#false} is VALID [2020-07-18 00:24:17,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:24:17,881 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:24:17,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604011025] [2020-07-18 00:24:17,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:24:17,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-18 00:24:17,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035374339] [2020-07-18 00:24:17,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-18 00:24:17,883 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:24:17,883 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-18 00:24:17,972 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 67 edges. 67 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:17,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-18 00:24:17,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:24:17,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-18 00:24:17,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-07-18 00:24:17,974 INFO L87 Difference]: Start difference. First operand 201 states and 210 transitions. Second operand 10 states. [2020-07-18 00:24:20,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:20,548 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2020-07-18 00:24:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-18 00:24:20,549 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-07-18 00:24:20,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:24:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-18 00:24:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 124 transitions. [2020-07-18 00:24:20,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-18 00:24:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 124 transitions. [2020-07-18 00:24:20,555 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 124 transitions. [2020-07-18 00:24:20,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 124 edges. 124 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:20,716 INFO L225 Difference]: With dead ends: 227 [2020-07-18 00:24:20,717 INFO L226 Difference]: Without dead ends: 225 [2020-07-18 00:24:20,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-07-18 00:24:20,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-18 00:24:22,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 201. [2020-07-18 00:24:22,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:24:22,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 225 states. Second operand 201 states. [2020-07-18 00:24:22,046 INFO L74 IsIncluded]: Start isIncluded. First operand 225 states. Second operand 201 states. [2020-07-18 00:24:22,047 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 201 states. [2020-07-18 00:24:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:22,055 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-18 00:24:22,055 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-18 00:24:22,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:22,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:22,056 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 225 states. [2020-07-18 00:24:22,056 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 225 states. [2020-07-18 00:24:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:24:22,063 INFO L93 Difference]: Finished difference Result 225 states and 234 transitions. [2020-07-18 00:24:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 234 transitions. [2020-07-18 00:24:22,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:24:22,064 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:24:22,064 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:24:22,065 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:24:22,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-07-18 00:24:22,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 209 transitions. [2020-07-18 00:24:22,069 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 209 transitions. Word has length 70 [2020-07-18 00:24:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:24:22,069 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 209 transitions. [2020-07-18 00:24:22,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-18 00:24:22,070 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 201 states and 209 transitions. [2020-07-18 00:24:22,595 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 209 edges. 209 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:24:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 209 transitions. [2020-07-18 00:24:22,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-18 00:24:22,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:24:22,597 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] [2020-07-18 00:24:22,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-18 00:24:22,598 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]=== [2020-07-18 00:24:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:24:22,598 INFO L82 PathProgramCache]: Analyzing trace with hash 715756074, now seen corresponding path program 1 times [2020-07-18 00:24:22,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:24:22,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [482571082] [2020-07-18 00:24:22,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:24:22,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-18 00:24:22,617 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:458) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:290) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:191) 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) [2020-07-18 00:24:22,628 INFO L168 Benchmark]: Toolchain (without parser) took 49964.53 ms. Allocated memory was 142.6 MB in the beginning and 585.1 MB in the end (delta: 442.5 MB). Free memory was 99.2 MB in the beginning and 471.7 MB in the end (delta: -372.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,629 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.03 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 98.8 MB in the beginning and 166.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,631 INFO L168 Benchmark]: Boogie Preprocessor took 81.85 ms. Allocated memory is still 200.8 MB. Free memory was 166.2 MB in the beginning and 162.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,632 INFO L168 Benchmark]: RCFGBuilder took 924.89 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 161.5 MB in the beginning and 202.4 MB in the end (delta: -40.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,634 INFO L168 Benchmark]: TraceAbstraction took 48337.16 ms. Allocated memory was 230.2 MB in the beginning and 585.1 MB in the end (delta: 354.9 MB). Free memory was 202.4 MB in the beginning and 471.7 MB in the end (delta: -269.4 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:24:22,638 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 614.03 ms. Allocated memory was 142.6 MB in the beginning and 200.8 MB in the end (delta: 58.2 MB). Free memory was 98.8 MB in the beginning and 166.2 MB in the end (delta: -67.4 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.85 ms. Allocated memory is still 200.8 MB. Free memory was 166.2 MB in the beginning and 162.3 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 924.89 ms. Allocated memory was 200.8 MB in the beginning and 230.2 MB in the end (delta: 29.4 MB). Free memory was 161.5 MB in the beginning and 202.4 MB in the end (delta: -40.8 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 48337.16 ms. Allocated memory was 230.2 MB in the beginning and 585.1 MB in the end (delta: 354.9 MB). Free memory was 202.4 MB in the beginning and 471.7 MB in the end (delta: -269.4 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.generateMetaTrace(AcceleratedInterpolation.java:458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...