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/list-simple/dll2c_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:12,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:12,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:12,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:12,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:12,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:12,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:12,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:12,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:12,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:12,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:12,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:12,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:12,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:12,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:12,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:12,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:12,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:12,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:12,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:12,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:12,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:12,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:12,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:12,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:12,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:12,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:12,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:12,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:12,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:12,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:12,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:12,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:12,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:12,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:12,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:12,406 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:12,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:12,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:12,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:12,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:12,409 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 17:07:12,425 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:12,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:12,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:12,426 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:12,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:12,427 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:12,427 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:12,427 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:12,427 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:12,428 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:12,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:12,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:12,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:12,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:12,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:12,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:12,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:12,430 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:12,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:12,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:12,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:12,431 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:12,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:12,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:12,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:12,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:12,432 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:12,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:12,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:12,432 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:12,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:12,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:12,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:12,478 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:12,478 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:12,479 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2019-09-16 17:07:12,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fed3a44d/bb097d8b1e824090a9833c3a029a1a37/FLAGb35385170 [2019-09-16 17:07:13,073 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:13,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_update_all_reverse.i [2019-09-16 17:07:13,089 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fed3a44d/bb097d8b1e824090a9833c3a029a1a37/FLAGb35385170 [2019-09-16 17:07:13,333 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fed3a44d/bb097d8b1e824090a9833c3a029a1a37 [2019-09-16 17:07:13,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:13,348 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:13,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:13,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:13,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:13,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:13" (1/1) ... [2019-09-16 17:07:13,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44397968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:13, skipping insertion in model container [2019-09-16 17:07:13,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:13" (1/1) ... [2019-09-16 17:07:13,370 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:13,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:13,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:13,907 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:13,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:14,009 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:14,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14 WrapperNode [2019-09-16 17:07:14,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:14,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:14,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:14,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:14,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (1/1) ... [2019-09-16 17:07:14,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:14,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:14,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:14,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:14,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (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 17:07:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:14,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-09-16 17:07:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-09-16 17:07:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-09-16 17:07:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-09-16 17:07:14,164 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_create [2019-09-16 17:07:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_destroy [2019-09-16 17:07:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_get_data_at [2019-09-16 17:07:14,165 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_circular_update_at [2019-09-16 17:07:14,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-09-16 17:07:14,167 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-09-16 17:07:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-09-16 17:07:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-09-16 17:07:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-09-16 17:07:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-09-16 17:07:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-09-16 17:07:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-09-16 17:07:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-09-16 17:07:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-09-16 17:07:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-09-16 17:07:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-09-16 17:07:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-09-16 17:07:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-09-16 17:07:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-09-16 17:07:14,173 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-09-16 17:07:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-09-16 17:07:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-09-16 17:07:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-09-16 17:07:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-09-16 17:07:14,174 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-09-16 17:07:14,175 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-09-16 17:07:14,176 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-09-16 17:07:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-09-16 17:07:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-09-16 17:07:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-09-16 17:07:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-09-16 17:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-09-16 17:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-09-16 17:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-09-16 17:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-09-16 17:07:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-09-16 17:07:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-09-16 17:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-09-16 17:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-09-16 17:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-09-16 17:07:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-09-16 17:07:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-09-16 17:07:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-09-16 17:07:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-09-16 17:07:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-09-16 17:07:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-09-16 17:07:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-16 17:07:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-09-16 17:07:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-09-16 17:07:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-09-16 17:07:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-16 17:07:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-09-16 17:07:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-09-16 17:07:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-09-16 17:07:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-09-16 17:07:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-09-16 17:07:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-09-16 17:07:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-09-16 17:07:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-09-16 17:07:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-09-16 17:07:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-09-16 17:07:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-09-16 17:07:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-09-16 17:07:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-09-16 17:07:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-09-16 17:07:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-09-16 17:07:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-09-16 17:07:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-09-16 17:07:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-09-16 17:07:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_create [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_destroy [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_get_data_at [2019-09-16 17:07:14,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure dll_circular_update_at [2019-09-16 17:07:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:14,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:14,678 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-09-16 17:07:14,778 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:14,779 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-16 17:07:14,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:14 BoogieIcfgContainer [2019-09-16 17:07:14,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:14,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:14,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:14,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:14,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:13" (1/3) ... [2019-09-16 17:07:14,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b5cc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:14, skipping insertion in model container [2019-09-16 17:07:14,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:14" (2/3) ... [2019-09-16 17:07:14,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b5cc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:14, skipping insertion in model container [2019-09-16 17:07:14,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:14" (3/3) ... [2019-09-16 17:07:14,798 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2c_update_all_reverse.i [2019-09-16 17:07:14,809 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:14,823 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:14,842 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:14,870 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:14,870 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:14,871 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:14,871 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:14,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:14,871 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:14,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:14,871 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2019-09-16 17:07:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-16 17:07:14,900 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:14,901 INFO L407 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] [2019-09-16 17:07:14,903 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:14,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:14,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1661227511, now seen corresponding path program 1 times [2019-09-16 17:07:14,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:14,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:14,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:14,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:14,976 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:15,101 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 17:07:15,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:15,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:15,104 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:15,110 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:15,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:15,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:15,131 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2019-09-16 17:07:15,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:15,156 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2019-09-16 17:07:15,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:15,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-09-16 17:07:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:15,169 INFO L225 Difference]: With dead ends: 60 [2019-09-16 17:07:15,170 INFO L226 Difference]: Without dead ends: 45 [2019-09-16 17:07:15,172 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 17:07:15,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-09-16 17:07:15,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-09-16 17:07:15,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-09-16 17:07:15,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2019-09-16 17:07:15,228 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 32 [2019-09-16 17:07:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:15,231 INFO L475 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2019-09-16 17:07:15,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:15,231 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2019-09-16 17:07:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-16 17:07:15,233 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:15,234 INFO L407 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] [2019-09-16 17:07:15,234 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:15,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:15,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1248070634, now seen corresponding path program 1 times [2019-09-16 17:07:15,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:15,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:15,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:15,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:15,241 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:15,414 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 17:07:15,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:15,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:07:15,416 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:15,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:07:15,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:07:15,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:07:15,419 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 4 states. [2019-09-16 17:07:15,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:15,506 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2019-09-16 17:07:15,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:07:15,507 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-09-16 17:07:15,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:15,509 INFO L225 Difference]: With dead ends: 55 [2019-09-16 17:07:15,509 INFO L226 Difference]: Without dead ends: 55 [2019-09-16 17:07:15,510 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 17:07:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-09-16 17:07:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 46. [2019-09-16 17:07:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-09-16 17:07:15,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2019-09-16 17:07:15,540 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 32 [2019-09-16 17:07:15,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:15,541 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2019-09-16 17:07:15,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:07:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2019-09-16 17:07:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-16 17:07:15,543 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:15,543 INFO L407 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] [2019-09-16 17:07:15,543 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:15,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:15,544 INFO L82 PathProgramCache]: Analyzing trace with hash 2064355028, now seen corresponding path program 1 times [2019-09-16 17:07:15,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:15,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:15,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:15,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:15,549 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:15,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:15,775 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 17:07:15,775 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-16 17:07:15,776 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2019-09-16 17:07:15,778 INFO L207 CegarAbsIntRunner]: [0], [2], [9], [24], [25], [26], [33], [39], [40], [48], [55], [61], [62], [63], [69], [71], [72], [73], [74], [75], [77], [83], [85], [88], [92], [100], [102], [105], [115], [144], [145], [150], [151], [152], [153], [154], [155], [158], [159], [160] [2019-09-16 17:07:15,824 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-16 17:07:15,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-16 17:07:15,894 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-16 17:07:15,896 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Performed 43 root evaluator evaluations with a maximum evaluation depth of 0. Performed 43 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 28 variables. [2019-09-16 17:07:15,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:15,900 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-16 17:07:15,947 INFO L227 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 86.04% of their original sizes. [2019-09-16 17:07:15,947 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-16 17:07:15,975 INFO L420 sIntCurrentIteration]: We unified 39 AI predicates to 39 [2019-09-16 17:07:15,976 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-16 17:07:15,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-16 17:07:15,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2019-09-16 17:07:15,977 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:15,978 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:07:15,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:07:15,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:07:15,978 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 6 states. [2019-09-16 17:07:16,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:16,003 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-09-16 17:07:16,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:07:16,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2019-09-16 17:07:16,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:16,008 INFO L225 Difference]: With dead ends: 10 [2019-09-16 17:07:16,008 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:07:16,009 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:16,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:07:16,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:07:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:07:16,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:07:16,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2019-09-16 17:07:16,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:16,010 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:07:16,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:07:16,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:07:16,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:07:16,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:07:16 BoogieIcfgContainer [2019-09-16 17:07:16,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:07:16,020 INFO L168 Benchmark]: Toolchain (without parser) took 2671.13 ms. Allocated memory was 137.4 MB in the beginning and 217.6 MB in the end (delta: 80.2 MB). Free memory was 83.6 MB in the beginning and 145.8 MB in the end (delta: -62.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:16,022 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:07:16,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.26 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 83.4 MB in the beginning and 159.3 MB in the end (delta: -75.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:16,025 INFO L168 Benchmark]: Boogie Preprocessor took 78.13 ms. Allocated memory is still 198.2 MB. Free memory was 159.3 MB in the beginning and 156.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:16,026 INFO L168 Benchmark]: RCFGBuilder took 691.86 ms. Allocated memory is still 198.2 MB. Free memory was 156.7 MB in the beginning and 107.3 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:07:16,028 INFO L168 Benchmark]: TraceAbstraction took 1235.62 ms. Allocated memory was 198.2 MB in the beginning and 217.6 MB in the end (delta: 19.4 MB). Free memory was 107.3 MB in the beginning and 145.8 MB in the end (delta: -38.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:07:16,039 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 137.4 MB. Free memory was 103.3 MB in the beginning and 103.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 656.26 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 83.4 MB in the beginning and 159.3 MB in the end (delta: -75.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 78.13 ms. Allocated memory is still 198.2 MB. Free memory was 159.3 MB in the beginning and 156.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 691.86 ms. Allocated memory is still 198.2 MB. Free memory was 156.7 MB in the beginning and 107.3 MB in the end (delta: 49.4 MB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1235.62 ms. Allocated memory was 198.2 MB in the beginning and 217.6 MB in the end (delta: 19.4 MB). Free memory was 107.3 MB in the beginning and 145.8 MB in the end (delta: -38.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 632]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 67 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 124 SDtfs, 24 SDslu, 109 SDs, 0 SdLazy, 11 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9412393162393163 AbsIntWeakeningRatio, 1.2820512820512822 AbsIntAvgWeakeningVarsNumRemoved, 0.6153846153846154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 5579 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...