/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 11:21:15,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:21:15,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:21:15,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:21:15,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:21:15,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:21:15,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:21:15,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:21:15,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:21:15,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:21:15,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:21:15,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:21:15,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:21:15,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:21:15,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:21:15,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:21:15,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:21:15,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:21:15,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:21:15,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:21:15,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:21:15,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:21:15,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:21:15,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:21:15,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 11:21:15,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 11:21:15,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 11:21:15,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 11:21:15,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 11:21:15,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 11:21:15,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 11:21:15,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 11:21:15,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 11:21:15,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 11:21:15,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 11:21:15,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 11:21:15,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 11:21:15,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 11:21:15,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:21:15,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:21:15,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:21:15,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 11:21:15,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:21:15,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:21:15,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:21:15,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:21:15,310 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:21:15,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:21:15,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:21:15,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:21:15,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:21:15,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:21:15,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:21:15,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:21:15,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:21:15,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:21:15,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:21:15,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:21:15,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:21:15,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:21:15,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:21:15,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:21:15,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:21:15,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:21:15,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:21:15,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:21:15,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:21:15,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:21:15,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:21:15,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:21:15,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:21:15,617 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:21:15,618 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-07 11:21:15,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e148b7b10/eaa39f9b4c5543d89fc52c82aa9b9d85/FLAG14dcf8dee [2020-07-07 11:21:16,267 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:21:16,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_update_all_reverse.i [2020-07-07 11:21:16,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e148b7b10/eaa39f9b4c5543d89fc52c82aa9b9d85/FLAG14dcf8dee [2020-07-07 11:21:16,575 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e148b7b10/eaa39f9b4c5543d89fc52c82aa9b9d85 [2020-07-07 11:21:16,584 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:21:16,586 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:21:16,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:21:16,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:21:16,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:21:16,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:21:16" (1/1) ... [2020-07-07 11:21:16,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47589c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:16, skipping insertion in model container [2020-07-07 11:21:16,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:21:16" (1/1) ... [2020-07-07 11:21:16,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:21:16,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:21:17,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:21:17,111 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:21:17,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:21:17,244 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:21:17,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17 WrapperNode [2020-07-07 11:21:17,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:21:17,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:21:17,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:21:17,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:21:17,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... [2020-07-07 11:21:17,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:21:17,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:21:17,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:21:17,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:21:17,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2020-07-07 11:21:17,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2020-07-07 11:21:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2020-07-07 11:21:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2020-07-07 11:21:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2020-07-07 11:21:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:21:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:21:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-07-07 11:21:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-07-07 11:21:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-07-07 11:21:17,393 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-07-07 11:21:17,394 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-07-07 11:21:17,395 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-07-07 11:21:17,396 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-07-07 11:21:17,397 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-07-07 11:21:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-07-07 11:21:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 11:21:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-07-07 11:21:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-07-07 11:21:17,398 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:21:17,399 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-07-07 11:21:17,400 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-07-07 11:21:17,401 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-07-07 11:21:17,402 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-07-07 11:21:17,403 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-07-07 11:21:17,404 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 11:21:17,405 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 11:21:17,406 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2020-07-07 11:21:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:21:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:21:17,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:21:17,795 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-07-07 11:21:17,965 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:21:17,966 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-07 11:21:17,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:21:17 BoogieIcfgContainer [2020-07-07 11:21:17,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:21:17,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:21:17,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:21:17,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:21:17,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:21:16" (1/3) ... [2020-07-07 11:21:17,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff99ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:21:17, skipping insertion in model container [2020-07-07 11:21:17,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:21:17" (2/3) ... [2020-07-07 11:21:17,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19ff99ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:21:17, skipping insertion in model container [2020-07-07 11:21:17,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:21:17" (3/3) ... [2020-07-07 11:21:17,984 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse.i [2020-07-07 11:21:17,993 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:21:18,001 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 11:21:18,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 11:21:18,033 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:21:18,033 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:21:18,034 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:21:18,034 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:21:18,034 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:21:18,034 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:21:18,034 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:21:18,035 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:21:18,055 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-07-07 11:21:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:21:18,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:21:18,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:21:18,064 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:21:18,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:21:18,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1303429635, now seen corresponding path program 1 times [2020-07-07 11:21:18,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:21:18,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036877700] [2020-07-07 11:21:18,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:21:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:21:18,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036877700] [2020-07-07 11:21:18,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:21:18,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:21:18,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236843768] [2020-07-07 11:21:18,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:21:18,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:21:18,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:21:18,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:21:18,403 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 4 states. [2020-07-07 11:21:18,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:21:18,727 INFO L93 Difference]: Finished difference Result 123 states and 178 transitions. [2020-07-07 11:21:18,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:21:18,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-07-07 11:21:18,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:21:18,744 INFO L225 Difference]: With dead ends: 123 [2020-07-07 11:21:18,744 INFO L226 Difference]: Without dead ends: 64 [2020-07-07 11:21:18,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:21:18,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-07 11:21:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 38. [2020-07-07 11:21:18,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-07-07 11:21:18,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-07-07 11:21:18,837 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 25 [2020-07-07 11:21:18,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:21:18,839 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-07-07 11:21:18,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:21:18,839 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-07-07 11:21:18,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-07 11:21:18,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:21:18,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:21:18,841 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:21:18,841 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:21:18,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:21:18,842 INFO L82 PathProgramCache]: Analyzing trace with hash 2048382207, now seen corresponding path program 1 times [2020-07-07 11:21:18,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:21:18,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113092491] [2020-07-07 11:21:18,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:21:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:21:19,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113092491] [2020-07-07 11:21:19,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:21:19,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:21:19,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044197698] [2020-07-07 11:21:19,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:21:19,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:21:19,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:21:19,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:21:19,029 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 7 states. [2020-07-07 11:21:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:21:19,272 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2020-07-07 11:21:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:21:19,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-07-07 11:21:19,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:21:19,274 INFO L225 Difference]: With dead ends: 68 [2020-07-07 11:21:19,274 INFO L226 Difference]: Without dead ends: 43 [2020-07-07 11:21:19,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:21:19,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-07 11:21:19,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2020-07-07 11:21:19,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-07 11:21:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2020-07-07 11:21:19,284 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 25 [2020-07-07 11:21:19,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:21:19,284 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2020-07-07 11:21:19,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:21:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2020-07-07 11:21:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:21:19,286 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:21:19,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:21:19,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:21:19,286 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:21:19,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:21:19,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1036290808, now seen corresponding path program 1 times [2020-07-07 11:21:19,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:21:19,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015074611] [2020-07-07 11:21:19,288 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:21:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:21:19,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015074611] [2020-07-07 11:21:19,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:21:19,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:21:19,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755943736] [2020-07-07 11:21:19,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:21:19,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:21:19,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:21:19,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:21:19,487 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 6 states. [2020-07-07 11:21:19,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:21:19,689 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2020-07-07 11:21:19,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:21:19,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-07 11:21:19,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:21:19,691 INFO L225 Difference]: With dead ends: 73 [2020-07-07 11:21:19,691 INFO L226 Difference]: Without dead ends: 43 [2020-07-07 11:21:19,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:21:19,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-07 11:21:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2020-07-07 11:21:19,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-07 11:21:19,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2020-07-07 11:21:19,701 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 30 [2020-07-07 11:21:19,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:21:19,701 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2020-07-07 11:21:19,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:21:19,701 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2020-07-07 11:21:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:21:19,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:21:19,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:21:19,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:21:19,703 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:21:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:21:19,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1569732746, now seen corresponding path program 1 times [2020-07-07 11:21:19,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:21:19,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670353910] [2020-07-07 11:21:19,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:21:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:21:19,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670353910] [2020-07-07 11:21:19,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763043898] [2020-07-07 11:21:19,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:21:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:19,979 INFO L264 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 11:21:19,985 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:21:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:21:20,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:21:20,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 9 [2020-07-07 11:21:20,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116874228] [2020-07-07 11:21:20,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:21:20,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:21:20,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:21:20,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:21:20,034 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand 9 states. [2020-07-07 11:21:20,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:21:20,254 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2020-07-07 11:21:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 11:21:20,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-07-07 11:21:20,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:21:20,256 INFO L225 Difference]: With dead ends: 73 [2020-07-07 11:21:20,256 INFO L226 Difference]: Without dead ends: 48 [2020-07-07 11:21:20,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-07-07 11:21:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-07 11:21:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2020-07-07 11:21:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-07 11:21:20,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2020-07-07 11:21:20,271 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 30 [2020-07-07 11:21:20,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:21:20,272 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2020-07-07 11:21:20,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:21:20,272 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2020-07-07 11:21:20,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 11:21:20,273 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:21:20,273 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:21:20,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:21:20,487 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 11:21:20,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:21:20,488 INFO L82 PathProgramCache]: Analyzing trace with hash 649760861, now seen corresponding path program 1 times [2020-07-07 11:21:20,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:21:20,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378119530] [2020-07-07 11:21:20,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:21:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:21:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 11:21:20,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378119530] [2020-07-07 11:21:20,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:21:20,587 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:21:20,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407457417] [2020-07-07 11:21:20,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:21:20,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:21:20,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:21:20,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:21:20,588 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand 6 states. [2020-07-07 11:21:20,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:21:20,718 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-07-07 11:21:20,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:21:20,719 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-07 11:21:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:21:20,719 INFO L225 Difference]: With dead ends: 49 [2020-07-07 11:21:20,719 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:21:20,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:21:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:21:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:21:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:21:20,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:21:20,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-07-07 11:21:20,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:21:20,722 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:21:20,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:21:20,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:21:20,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:21:20,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:21:20,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:21:20,919 INFO L264 CegarLoopResult]: At program point L607-2(lines 607 610) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:21:20,919 INFO L268 CegarLoopResult]: For program point L607-3(lines 607 610) no Hoare annotation was computed. [2020-07-07 11:21:20,919 INFO L264 CegarLoopResult]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:21:20,919 INFO L268 CegarLoopResult]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2020-07-07 11:21:20,919 INFO L268 CegarLoopResult]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2020-07-07 11:21:20,920 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:21:20,920 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-07-07 11:21:20,920 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:21:20,920 INFO L271 CegarLoopResult]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2020-07-07 11:21:20,920 INFO L268 CegarLoopResult]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2020-07-07 11:21:20,920 INFO L271 CegarLoopResult]: At program point L562(line 562) the Hoare annotation is: true [2020-07-07 11:21:20,921 INFO L268 CegarLoopResult]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2020-07-07 11:21:20,921 INFO L264 CegarLoopResult]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:21:20,921 INFO L271 CegarLoopResult]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2020-07-07 11:21:20,921 INFO L268 CegarLoopResult]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2020-07-07 11:21:20,921 INFO L268 CegarLoopResult]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2020-07-07 11:21:20,921 INFO L271 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: true [2020-07-07 11:21:20,921 INFO L268 CegarLoopResult]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2020-07-07 11:21:20,921 INFO L268 CegarLoopResult]: For program point L584(lines 584 586) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point L578(lines 578 580) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2020-07-07 11:21:20,922 INFO L268 CegarLoopResult]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2020-07-07 11:21:20,923 INFO L268 CegarLoopResult]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2020-07-07 11:21:20,923 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:21:20,923 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:21:20,923 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:21:20,923 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:21:20,923 INFO L271 CegarLoopResult]: At program point L600-2(lines 600 603) the Hoare annotation is: true [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point L600-3(lines 600 603) no Hoare annotation was computed. [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2020-07-07 11:21:20,924 INFO L271 CegarLoopResult]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point L628(line 628) no Hoare annotation was computed. [2020-07-07 11:21:20,924 INFO L264 CegarLoopResult]: At program point L624(line 624) the Hoare annotation is: false [2020-07-07 11:21:20,924 INFO L268 CegarLoopResult]: For program point L624-1(line 624) no Hoare annotation was computed. [2020-07-07 11:21:20,925 INFO L268 CegarLoopResult]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2020-07-07 11:21:20,925 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2020-07-07 11:21:20,925 INFO L264 CegarLoopResult]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-07 11:21:20,925 INFO L268 CegarLoopResult]: For program point L622-2(lines 622 627) no Hoare annotation was computed. [2020-07-07 11:21:20,925 INFO L268 CegarLoopResult]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2020-07-07 11:21:20,925 INFO L264 CegarLoopResult]: At program point L622-3(lines 622 627) the Hoare annotation is: (and (<= 2 main_~len~0) (<= 1 main_~i~0)) [2020-07-07 11:21:20,925 INFO L271 CegarLoopResult]: At program point L622-4(lines 622 627) the Hoare annotation is: true [2020-07-07 11:21:20,926 INFO L264 CegarLoopResult]: At program point L616(line 616) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (<= 2 main_~len~0) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:21:20,926 INFO L264 CegarLoopResult]: At program point L618-2(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2020-07-07 11:21:20,926 INFO L268 CegarLoopResult]: For program point L616-1(line 616) no Hoare annotation was computed. [2020-07-07 11:21:20,926 INFO L268 CegarLoopResult]: For program point L618-3(lines 618 621) no Hoare annotation was computed. [2020-07-07 11:21:20,926 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-07-07 11:21:20,927 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 613 632) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |old(#length)| |#length|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) [2020-07-07 11:21:20,927 INFO L264 CegarLoopResult]: At program point L625(lines 613 632) the Hoare annotation is: false [2020-07-07 11:21:20,927 INFO L268 CegarLoopResult]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2020-07-07 11:21:20,927 INFO L264 CegarLoopResult]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: (= |#valid| |old(#valid)|) [2020-07-07 11:21:20,927 INFO L271 CegarLoopResult]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2020-07-07 11:21:20,927 INFO L268 CegarLoopResult]: For program point L593-3(lines 592 598) no Hoare annotation was computed. [2020-07-07 11:21:20,927 INFO L268 CegarLoopResult]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2020-07-07 11:21:20,928 INFO L268 CegarLoopResult]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2020-07-07 11:21:20,928 INFO L268 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-07-07 11:21:20,928 INFO L268 CegarLoopResult]: For program point L566(lines 566 568) no Hoare annotation was computed. [2020-07-07 11:21:20,928 INFO L268 CegarLoopResult]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2020-07-07 11:21:20,928 INFO L268 CegarLoopResult]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2020-07-07 11:21:20,940 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,941 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,942 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,943 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,944 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:21:20 BoogieIcfgContainer [2020-07-07 11:21:20,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:21:20,950 INFO L168 Benchmark]: Toolchain (without parser) took 4363.71 ms. Allocated memory was 144.2 MB in the beginning and 250.6 MB in the end (delta: 106.4 MB). Free memory was 99.2 MB in the beginning and 206.8 MB in the end (delta: -107.6 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,951 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.10 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 98.7 MB in the beginning and 167.0 MB in the end (delta: -68.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,953 INFO L168 Benchmark]: Boogie Preprocessor took 69.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.0 MB in the beginning and 163.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,954 INFO L168 Benchmark]: RCFGBuilder took 654.26 ms. Allocated memory is still 201.3 MB. Free memory was 163.7 MB in the beginning and 114.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,955 INFO L168 Benchmark]: TraceAbstraction took 2973.41 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 113.9 MB in the beginning and 206.8 MB in the end (delta: -92.8 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:21:20,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 144.2 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.10 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 98.7 MB in the beginning and 167.0 MB in the end (delta: -68.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 69.83 ms. Allocated memory is still 201.3 MB. Free memory was 167.0 MB in the beginning and 163.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 654.26 ms. Allocated memory is still 201.3 MB. Free memory was 163.7 MB in the beginning and 114.6 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2973.41 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 113.9 MB in the beginning and 206.8 MB in the end (delta: -92.8 MB). Peak memory consumption was 78.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: 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 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 607]: Loop Invariant [2020-07-07 11:21:20,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-07-07 11:21:20,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-07-07 11:21:20,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-07-07 11:21:20,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-07-07 11:21:20,973 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (unknown-#memory_int-unknown == \old(unknown-#memory_int-unknown) && #memory_$Pointer$ == \old(#memory_$Pointer$)) && #memory_$Pointer$ == \old(#memory_$Pointer$) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 2 <= len && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 215 SDslu, 280 SDs, 0 SdLazy, 466 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 35 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 46 PreInvPairs, 60 NumberOfFragments, 109 HoareAnnotationTreeSize, 46 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 115 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 10665 SizeOfPredicates, 2 NumberOfNonLiveVariables, 134 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 8/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...