java -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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-queue-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:04,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:04,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:04,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:04,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:04,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:04,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:04,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:04,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:04,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:04,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:04,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:04,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:04,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:04,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:04,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:04,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:04,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:04,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:04,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:04,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:04,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:04,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:04,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:04,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:04,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:04,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:04,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:04,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:04,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:04,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:04,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:04,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:04,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:04,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:04,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:04,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:04,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:04,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:04,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:04,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:04,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:07:04,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:04,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:04,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:04,446 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:04,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:04,446 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:04,447 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:04,447 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:04,447 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:04,447 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:04,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:04,448 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:04,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:04,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:04,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:04,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:04,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:04,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:04,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:04,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:04,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:04,450 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:04,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:04,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:04,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:04,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:04,451 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:04,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:04,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:04,452 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:04,491 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:04,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:04,511 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:04,513 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:04,513 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:04,514 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-queue-2.i [2019-09-16 17:07:04,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2510f911/6cf9847013304ed6afa787db0c6253c3/FLAGeef28c917 [2019-09-16 17:07:05,148 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:05,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-queue-2.i [2019-09-16 17:07:05,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2510f911/6cf9847013304ed6afa787db0c6253c3/FLAGeef28c917 [2019-09-16 17:07:05,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2510f911/6cf9847013304ed6afa787db0c6253c3 [2019-09-16 17:07:05,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:05,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:05,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:05,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:05,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:05,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:05" (1/1) ... [2019-09-16 17:07:05,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63939978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:05, skipping insertion in model container [2019-09-16 17:07:05,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:05" (1/1) ... [2019-09-16 17:07:05,488 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:05,546 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:05,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:05,961 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:06,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:06,066 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:06,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06 WrapperNode [2019-09-16 17:07:06,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:06,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:06,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:06,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:06,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (1/1) ... [2019-09-16 17:07:06,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:06,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:06,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:06,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:06,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (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 [2019-09-16 17:07:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:06,230 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:06,231 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:06,232 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:06,233 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:06,234 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:06,235 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:06,236 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:06,237 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:06,238 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:06,239 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:06,240 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:06,241 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:06,242 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:06,243 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:06,244 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:06,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:06,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:06,946 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:06,947 INFO L283 CfgBuilder]: Removed 31 assume(true) statements. [2019-09-16 17:07:06,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:06 BoogieIcfgContainer [2019-09-16 17:07:06,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:06,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:06,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:06,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:06,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:05" (1/3) ... [2019-09-16 17:07:06,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ff133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:06, skipping insertion in model container [2019-09-16 17:07:06,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:06" (2/3) ... [2019-09-16 17:07:06,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ff133e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:06, skipping insertion in model container [2019-09-16 17:07:06,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:06" (3/3) ... [2019-09-16 17:07:06,963 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-queue-2.i [2019-09-16 17:07:06,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:06,987 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 14 error locations. [2019-09-16 17:07:07,006 INFO L252 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2019-09-16 17:07:07,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:07,035 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:07,036 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:07,036 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:07,036 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:07,036 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:07,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:07,037 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:07,060 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2019-09-16 17:07:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-16 17:07:07,083 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:07,084 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:07,089 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:07,096 INFO L82 PathProgramCache]: Analyzing trace with hash 307953290, now seen corresponding path program 1 times [2019-09-16 17:07:07,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:07,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:07,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,168 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:07,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:07,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:07,270 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:07,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:07,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:07,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:07,292 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2019-09-16 17:07:07,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:07,314 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2019-09-16 17:07:07,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:07,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-09-16 17:07:07,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:07,328 INFO L225 Difference]: With dead ends: 80 [2019-09-16 17:07:07,328 INFO L226 Difference]: Without dead ends: 74 [2019-09-16 17:07:07,330 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-09-16 17:07:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2019-09-16 17:07:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-09-16 17:07:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-09-16 17:07:07,375 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 9 [2019-09-16 17:07:07,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:07,376 INFO L475 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-09-16 17:07:07,376 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-09-16 17:07:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-16 17:07:07,377 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:07,377 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:07,378 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:07,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:07,378 INFO L82 PathProgramCache]: Analyzing trace with hash 954861691, now seen corresponding path program 1 times [2019-09-16 17:07:07,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:07,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:07,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:07,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:07,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:07,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:07,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:07,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:07,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:07,452 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 3 states. [2019-09-16 17:07:07,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:07,534 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2019-09-16 17:07:07,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:07,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-16 17:07:07,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:07,536 INFO L225 Difference]: With dead ends: 64 [2019-09-16 17:07:07,536 INFO L226 Difference]: Without dead ends: 64 [2019-09-16 17:07:07,537 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-16 17:07:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-16 17:07:07,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-16 17:07:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2019-09-16 17:07:07,545 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 10 [2019-09-16 17:07:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:07,546 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2019-09-16 17:07:07,546 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2019-09-16 17:07:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 17:07:07,547 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:07,547 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:07,548 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:07,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:07,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1500729684, now seen corresponding path program 1 times [2019-09-16 17:07:07,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:07,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:07,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,553 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:07,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:07,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:07:07,644 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:07,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:07,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:07,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:07,645 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand 4 states. [2019-09-16 17:07:07,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:07,729 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2019-09-16 17:07:07,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:07,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 17:07:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:07,731 INFO L225 Difference]: With dead ends: 62 [2019-09-16 17:07:07,731 INFO L226 Difference]: Without dead ends: 62 [2019-09-16 17:07:07,731 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:07:07,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-09-16 17:07:07,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2019-09-16 17:07:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-09-16 17:07:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2019-09-16 17:07:07,738 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 12 [2019-09-16 17:07:07,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:07,738 INFO L475 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2019-09-16 17:07:07,738 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2019-09-16 17:07:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-09-16 17:07:07,739 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:07,739 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:07,740 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:07,740 INFO L82 PathProgramCache]: Analyzing trace with hash 858835281, now seen corresponding path program 1 times [2019-09-16 17:07:07,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:07,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:07,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:07,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:07,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:07,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:07,783 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:07,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:07,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:07,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:07,784 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand 3 states. [2019-09-16 17:07:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:07,845 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2019-09-16 17:07:07,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:07,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-09-16 17:07:07,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:07,849 INFO L225 Difference]: With dead ends: 78 [2019-09-16 17:07:07,849 INFO L226 Difference]: Without dead ends: 78 [2019-09-16 17:07:07,850 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:07,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-09-16 17:07:07,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 68. [2019-09-16 17:07:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-09-16 17:07:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2019-09-16 17:07:07,867 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 14 [2019-09-16 17:07:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:07,867 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2019-09-16 17:07:07,867 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:07,868 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2019-09-16 17:07:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-16 17:07:07,868 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:07,869 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:07:07,871 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:07,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1410713368, now seen corresponding path program 1 times [2019-09-16 17:07:07,872 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:07,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:07,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:07,876 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:07,972 ERROR L253 erpolLogProxyWrapper]: Interpolant 7 not inductive [2019-09-16 17:07:07,989 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:863) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:215) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-16 17:07:08,001 INFO L168 Benchmark]: Toolchain (without parser) took 2531.39 ms. Allocated memory was 139.5 MB in the beginning and 222.8 MB in the end (delta: 83.4 MB). Free memory was 84.6 MB in the beginning and 156.1 MB in the end (delta: -71.5 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:08,003 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:08,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.18 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 164.6 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:08,006 INFO L168 Benchmark]: Boogie Preprocessor took 95.25 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 161.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:08,007 INFO L168 Benchmark]: RCFGBuilder took 787.72 ms. Allocated memory is still 199.8 MB. Free memory was 161.6 MB in the beginning and 104.1 MB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:08,009 INFO L168 Benchmark]: TraceAbstraction took 1046.01 ms. Allocated memory was 199.8 MB in the beginning and 222.8 MB in the end (delta: 23.1 MB). Free memory was 103.5 MB in the beginning and 156.1 MB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:08,015 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 139.5 MB. Free memory was 104.2 MB in the beginning and 104.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 597.18 ms. Allocated memory was 139.5 MB in the beginning and 199.8 MB in the end (delta: 60.3 MB). Free memory was 84.4 MB in the beginning and 164.6 MB in the end (delta: -80.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.25 ms. Allocated memory is still 199.8 MB. Free memory was 164.6 MB in the beginning and 161.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 787.72 ms. Allocated memory is still 199.8 MB. Free memory was 161.6 MB in the beginning and 104.1 MB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1046.01 ms. Allocated memory was 199.8 MB in the beginning and 222.8 MB in the end (delta: 23.1 MB). Free memory was 103.5 MB in the beginning and 156.1 MB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:221) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...