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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:04:45,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:04:45,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:04:45,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:04:45,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:04:45,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:04:45,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:04:45,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:04:45,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:04:45,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:04:45,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:04:45,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:04:45,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:04:45,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:04:45,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:04:45,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:04:45,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:04:45,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:04:45,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:04:45,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:04:45,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:04:45,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:04:45,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:04:45,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:04:45,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:04:45,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:04:45,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:04:45,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:04:45,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:04:45,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:04:45,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:04:45,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:04:45,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:04:45,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:04:45,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:04:45,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:04:45,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:04:45,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:04:45,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:04:45,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:04:45,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:04:45,297 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 [2019-10-13 21:04:45,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:04:45,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:04:45,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:04:45,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:04:45,328 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:04:45,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:04:45,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:04:45,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:04:45,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:04:45,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:04:45,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:04:45,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:04:45,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:04:45,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:04:45,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:04:45,330 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:04:45,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:04:45,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:04:45,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:04:45,331 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:04:45,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:04:45,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:04:45,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:04:45,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:04:45,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:04:45,333 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:04:45,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:04:45,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:04:45,333 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:04:45,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:04:45,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:04:45,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:04:45,685 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:04:45,686 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:04:45,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i [2019-10-13 21:04:45,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b74ffaf/909e83b0a3804de68cf0bd01e186b114/FLAG5e7aafc5a [2019-10-13 21:04:46,279 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:04:46,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2n_remove_all_reverse.i [2019-10-13 21:04:46,293 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b74ffaf/909e83b0a3804de68cf0bd01e186b114/FLAG5e7aafc5a [2019-10-13 21:04:46,581 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b74ffaf/909e83b0a3804de68cf0bd01e186b114 [2019-10-13 21:04:46,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:04:46,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:04:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:46,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:04:46,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:04:46,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:46" (1/1) ... [2019-10-13 21:04:46,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61853ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:46, skipping insertion in model container [2019-10-13 21:04:46,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:04:46" (1/1) ... [2019-10-13 21:04:46,610 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:04:46,661 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:04:47,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:47,132 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:04:47,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:04:47,248 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:04:47,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47 WrapperNode [2019-10-13 21:04:47,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:04:47,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:04:47,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:04:47,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:04:47,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (1/1) ... [2019-10-13 21:04:47,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:04:47,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:04:47,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:04:47,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:04:47,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (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 [2019-10-13 21:04:47,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:04:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:04:47,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-10-13 21:04:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-10-13 21:04:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-10-13 21:04:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2019-10-13 21:04:47,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2019-10-13 21:04:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_remove_last [2019-10-13 21:04:47,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:04:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:04:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-10-13 21:04:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-10-13 21:04:47,378 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-10-13 21:04:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-10-13 21:04:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-10-13 21:04:47,379 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-10-13 21:04:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-10-13 21:04:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-10-13 21:04:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-10-13 21:04:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-10-13 21:04:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-10-13 21:04:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-10-13 21:04:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-10-13 21:04:47,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-10-13 21:04:47,383 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-10-13 21:04:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-10-13 21:04:47,385 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-10-13 21:04:47,386 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-10-13 21:04:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-10-13 21:04:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-10-13 21:04:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-10-13 21:04:47,387 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-10-13 21:04:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-10-13 21:04:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-10-13 21:04:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-10-13 21:04:47,388 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-10-13 21:04:47,389 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-10-13 21:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-10-13 21:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-10-13 21:04:47,390 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-10-13 21:04:47,391 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-10-13 21:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-10-13 21:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-10-13 21:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-10-13 21:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-10-13 21:04:47,392 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-10-13 21:04:47,393 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-10-13 21:04:47,394 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-10-13 21:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-10-13 21:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-10-13 21:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-10-13 21:04:47,395 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-10-13 21:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-10-13 21:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-10-13 21:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 21:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-10-13 21:04:47,396 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-10-13 21:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-10-13 21:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-10-13 21:04:47,397 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-10-13 21:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-10-13 21:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-10-13 21:04:47,398 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-10-13 21:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-10-13 21:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-10-13 21:04:47,399 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-10-13 21:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-10-13 21:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-10-13 21:04:47,400 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-10-13 21:04:47,401 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-10-13 21:04:47,402 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-10-13 21:04:47,403 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure dll_remove_last [2019-10-13 21:04:47,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:04:47,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:04:47,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:04:47,809 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-10-13 21:04:48,023 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:04:48,024 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 21:04:48,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:48 BoogieIcfgContainer [2019-10-13 21:04:48,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:04:48,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:04:48,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:04:48,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:04:48,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:04:46" (1/3) ... [2019-10-13 21:04:48,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6502355a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:48, skipping insertion in model container [2019-10-13 21:04:48,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:04:47" (2/3) ... [2019-10-13 21:04:48,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6502355a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:04:48, skipping insertion in model container [2019-10-13 21:04:48,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:04:48" (3/3) ... [2019-10-13 21:04:48,034 INFO L109 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all_reverse.i [2019-10-13 21:04:48,044 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:04:48,053 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:04:48,063 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:04:48,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:04:48,085 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:04:48,085 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:04:48,085 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:04:48,085 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:04:48,085 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:04:48,085 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:04:48,086 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:04:48,103 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-10-13 21:04:48,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 21:04:48,110 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,111 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:04:48,113 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,118 INFO L82 PathProgramCache]: Analyzing trace with hash 69017892, now seen corresponding path program 1 times [2019-10-13 21:04:48,125 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543948615] [2019-10-13 21:04:48,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,126 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,126 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:48,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:48,326 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543948615] [2019-10-13 21:04:48,327 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:48,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:04:48,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469384156] [2019-10-13 21:04:48,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:04:48,335 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:48,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:04:48,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:04:48,356 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 4 states. [2019-10-13 21:04:48,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:48,440 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2019-10-13 21:04:48,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:04:48,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-10-13 21:04:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:48,453 INFO L225 Difference]: With dead ends: 63 [2019-10-13 21:04:48,453 INFO L226 Difference]: Without dead ends: 34 [2019-10-13 21:04:48,457 INFO L600 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 [2019-10-13 21:04:48,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-10-13 21:04:48,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-10-13 21:04:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 21:04:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-10-13 21:04:48,519 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 17 [2019-10-13 21:04:48,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:48,520 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-10-13 21:04:48,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:04:48,521 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-10-13 21:04:48,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-13 21:04:48,522 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,523 INFO L380 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] [2019-10-13 21:04:48,523 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1755402763, now seen corresponding path program 1 times [2019-10-13 21:04:48,524 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,525 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108770894] [2019-10-13 21:04:48,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:48,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108770894] [2019-10-13 21:04:48,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:48,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:04:48,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983686708] [2019-10-13 21:04:48,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:04:48,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:48,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:04:48,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:04:48,746 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 6 states. [2019-10-13 21:04:48,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:48,902 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2019-10-13 21:04:48,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:04:48,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-10-13 21:04:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:48,904 INFO L225 Difference]: With dead ends: 46 [2019-10-13 21:04:48,904 INFO L226 Difference]: Without dead ends: 32 [2019-10-13 21:04:48,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:04:48,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-10-13 21:04:48,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-10-13 21:04:48,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-10-13 21:04:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2019-10-13 21:04:48,912 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 24 [2019-10-13 21:04:48,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:48,913 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2019-10-13 21:04:48,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:04:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2019-10-13 21:04:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-13 21:04:48,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:48,914 INFO L380 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] [2019-10-13 21:04:48,914 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:48,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:48,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1097743824, now seen corresponding path program 1 times [2019-10-13 21:04:48,915 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:48,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031776838] [2019-10-13 21:04:48,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:48,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,032 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031776838] [2019-10-13 21:04:49,033 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629287581] [2019-10-13 21:04:49,033 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 [2019-10-13 21:04:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 21:04:49,184 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:49,214 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:49,328 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 21:04:49,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [8] total 10 [2019-10-13 21:04:49,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560057635] [2019-10-13 21:04:49,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:04:49,330 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:49,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:04:49,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:04:49,334 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2019-10-13 21:04:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:49,421 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2019-10-13 21:04:49,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:04:49,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-13 21:04:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:49,423 INFO L225 Difference]: With dead ends: 56 [2019-10-13 21:04:49,423 INFO L226 Difference]: Without dead ends: 37 [2019-10-13 21:04:49,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:04:49,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-13 21:04:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2019-10-13 21:04:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-13 21:04:49,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2019-10-13 21:04:49,440 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 27 [2019-10-13 21:04:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:49,440 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2019-10-13 21:04:49,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:04:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2019-10-13 21:04:49,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:49,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:49,447 INFO L380 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] [2019-10-13 21:04:49,651 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:49,651 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:49,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:49,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1690382154, now seen corresponding path program 1 times [2019-10-13 21:04:49,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:49,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760869462] [2019-10-13 21:04:49,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:49,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760869462] [2019-10-13 21:04:49,731 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:04:49,731 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:04:49,731 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720707429] [2019-10-13 21:04:49,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:04:49,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:49,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:04:49,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:04:49,734 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 3 states. [2019-10-13 21:04:49,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:49,766 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2019-10-13 21:04:49,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:04:49,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-13 21:04:49,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:49,770 INFO L225 Difference]: With dead ends: 61 [2019-10-13 21:04:49,770 INFO L226 Difference]: Without dead ends: 37 [2019-10-13 21:04:49,771 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:04:49,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-13 21:04:49,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-10-13 21:04:49,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-10-13 21:04:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2019-10-13 21:04:49,783 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 32 [2019-10-13 21:04:49,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:49,784 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2019-10-13 21:04:49,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:04:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2019-10-13 21:04:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-13 21:04:49,786 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:04:49,787 INFO L380 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] [2019-10-13 21:04:49,787 INFO L410 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:04:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:49,787 INFO L82 PathProgramCache]: Analyzing trace with hash 2113083980, now seen corresponding path program 1 times [2019-10-13 21:04:49,788 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:04:49,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718738707] [2019-10-13 21:04:49,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:04:49,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:04:49,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 21:04:49,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718738707] [2019-10-13 21:04:49,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563402976] [2019-10-13 21:04:49,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:04:50,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-13 21:04:50,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:04:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:50,061 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:04:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 21:04:50,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1488687806] [2019-10-13 21:04:50,151 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 33 [2019-10-13 21:04:50,192 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:04:50,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:04:50,250 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:04:50,252 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 21 root evaluator evaluations with a maximum evaluation depth of 0. Performed 21 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-13 21:04:50,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:04:50,257 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:04:50,291 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:04:50,291 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:04:50,292 INFO L553 sIntCurrentIteration]: We unified 31 AI predicates to 31 [2019-10-13 21:04:50,292 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:04:50,293 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:04:50,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9, 6, 6] total 11 [2019-10-13 21:04:50,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257453830] [2019-10-13 21:04:50,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:04:50,295 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:04:50,295 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:04:50,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:04:50,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:50,296 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 2 states. [2019-10-13 21:04:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:04:50,298 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2019-10-13 21:04:50,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:04:50,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2019-10-13 21:04:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:04:50,299 INFO L225 Difference]: With dead ends: 36 [2019-10-13 21:04:50,299 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:04:50,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:04:50,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:04:50,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:04:50,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:04:50,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:04:50,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-10-13 21:04:50,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:04:50,300 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:04:50,301 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:04:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:04:50,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:04:50,507 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:04:50,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:04:50,624 INFO L443 ceAbstractionStarter]: For program point dll_remove_lastEXIT(lines 592 606) no Hoare annotation was computed. [2019-10-13 21:04:50,624 INFO L443 ceAbstractionStarter]: For program point L599-1(lines 599 602) no Hoare annotation was computed. [2019-10-13 21:04:50,624 INFO L439 ceAbstractionStarter]: At program point dll_remove_lastENTRY(lines 592 606) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0)) (and (= (select (select |#memory_$Pointer$.offset| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0) (= (select (select |#memory_$Pointer$.base| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0)) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|)))) [2019-10-13 21:04:50,625 INFO L439 ceAbstractionStarter]: At program point L599-3(lines 599 602) the Hoare annotation is: (or (not (= (select (select |old(#memory_$Pointer$.base)| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0)) (and (= dll_remove_last_~head.offset |dll_remove_last_#in~head.offset|) (= (select (select |#memory_$Pointer$.offset| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0) (= |dll_remove_last_#in~head.base| dll_remove_last_~head.base) (= (select (select |#memory_$Pointer$.base| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|) 0)) (not (= 0 (select (select |old(#memory_$Pointer$.offset)| |dll_remove_last_#in~head.base|) |dll_remove_last_#in~head.offset|)))) [2019-10-13 21:04:50,625 INFO L443 ceAbstractionStarter]: For program point L599-4(lines 599 602) no Hoare annotation was computed. [2019-10-13 21:04:50,625 INFO L443 ceAbstractionStarter]: For program point L593(lines 593 605) no Hoare annotation was computed. [2019-10-13 21:04:50,628 INFO L443 ceAbstractionStarter]: For program point L593-2(lines 592 606) no Hoare annotation was computed. [2019-10-13 21:04:50,628 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:50,628 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:50,629 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:50,629 INFO L446 ceAbstractionStarter]: At program point myexitENTRY(lines 561 563) the Hoare annotation is: true [2019-10-13 21:04:50,629 INFO L443 ceAbstractionStarter]: For program point myexitEXIT(lines 561 563) no Hoare annotation was computed. [2019-10-13 21:04:50,629 INFO L446 ceAbstractionStarter]: At program point L562(line 562) the Hoare annotation is: true [2019-10-13 21:04:50,629 INFO L443 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2019-10-13 21:04:50,629 INFO L446 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2019-10-13 21:04:50,629 INFO L446 ceAbstractionStarter]: At program point L576-2(lines 576 589) the Hoare annotation is: true [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point L576-3(lines 576 589) no Hoare annotation was computed. [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2019-10-13 21:04:50,630 INFO L446 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2019-10-13 21:04:50,630 INFO L443 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2019-10-13 21:04:50,631 INFO L443 ceAbstractionStarter]: For program point __bswap_32ENTRY(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:50,631 INFO L443 ceAbstractionStarter]: For program point __bswap_32FINAL(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:50,631 INFO L443 ceAbstractionStarter]: For program point __bswap_32EXIT(lines 63 67) no Hoare annotation was computed. [2019-10-13 21:04:50,631 INFO L443 ceAbstractionStarter]: For program point __bswap_64ENTRY(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:50,636 INFO L443 ceAbstractionStarter]: For program point __bswap_64FINAL(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:50,636 INFO L443 ceAbstractionStarter]: For program point __bswap_64EXIT(lines 68 72) no Hoare annotation was computed. [2019-10-13 21:04:50,637 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:04:50,637 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:04:50,637 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:04:50,637 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:04:50,637 INFO L443 ceAbstractionStarter]: For program point L610-1(line 610) no Hoare annotation was computed. [2019-10-13 21:04:50,637 INFO L443 ceAbstractionStarter]: For program point L612-3(lines 612 614) no Hoare annotation was computed. [2019-10-13 21:04:50,637 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 607 621) the Hoare annotation is: true [2019-10-13 21:04:50,638 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 619) no Hoare annotation was computed. [2019-10-13 21:04:50,638 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 607 621) no Hoare annotation was computed. [2019-10-13 21:04:50,638 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 607 621) no Hoare annotation was computed. [2019-10-13 21:04:50,638 INFO L439 ceAbstractionStarter]: At program point L616(lines 607 621) the Hoare annotation is: false [2019-10-13 21:04:50,638 INFO L443 ceAbstractionStarter]: For program point L615(lines 615 617) no Hoare annotation was computed. [2019-10-13 21:04:50,638 INFO L439 ceAbstractionStarter]: At program point L613(line 613) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (<= 2 main_~len~0)) [2019-10-13 21:04:50,638 INFO L443 ceAbstractionStarter]: For program point L613-1(lines 612 614) no Hoare annotation was computed. [2019-10-13 21:04:50,639 INFO L439 ceAbstractionStarter]: At program point L610(line 610) the Hoare annotation is: false [2019-10-13 21:04:50,639 INFO L439 ceAbstractionStarter]: At program point L612-2(lines 612 614) the Hoare annotation is: (and (= (select (select |#memory_$Pointer$.offset| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (= (select (select |#memory_$Pointer$.base| |main_~#s~0.base|) |main_~#s~0.offset|) 0) (<= 2 main_~len~0)) [2019-10-13 21:04:50,639 INFO L443 ceAbstractionStarter]: For program point node_createENTRY(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:50,639 INFO L443 ceAbstractionStarter]: For program point node_createFINAL(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:50,641 INFO L443 ceAbstractionStarter]: For program point L567(line 567) no Hoare annotation was computed. [2019-10-13 21:04:50,641 INFO L443 ceAbstractionStarter]: For program point L566(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:50,642 INFO L443 ceAbstractionStarter]: For program point node_createEXIT(lines 564 573) no Hoare annotation was computed. [2019-10-13 21:04:50,642 INFO L443 ceAbstractionStarter]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2019-10-13 21:04:50,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,661 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,662 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,664 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,665 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,666 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,667 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,668 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:04:50 BoogieIcfgContainer [2019-10-13 21:04:50,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:04:50,683 INFO L168 Benchmark]: Toolchain (without parser) took 4084.31 ms. Allocated memory was 141.0 MB in the beginning and 247.5 MB in the end (delta: 106.4 MB). Free memory was 101.7 MB in the beginning and 160.7 MB in the end (delta: -59.0 MB). Peak memory consumption was 47.4 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,683 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:04:50,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 169.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,687 INFO L168 Benchmark]: Boogie Preprocessor took 62.85 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,689 INFO L168 Benchmark]: RCFGBuilder took 713.41 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 119.2 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,690 INFO L168 Benchmark]: TraceAbstraction took 2650.71 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 119.2 MB in the beginning and 160.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:04:50,693 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 121.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.02 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 169.1 MB in the end (delta: -67.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.85 ms. Allocated memory is still 203.9 MB. Free memory was 169.1 MB in the beginning and 166.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 713.41 ms. Allocated memory is still 203.9 MB. Free memory was 166.2 MB in the beginning and 119.2 MB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2650.71 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 119.2 MB in the beginning and 160.7 MB in the end (delta: -41.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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_$Pointer$ - 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_$Pointer$ - 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: 619]: 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: 599]: Loop Invariant [2019-10-13 21:04:50,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (!(\old(#memory_$Pointer$)[head][head] == 0) || (((head == head && #memory_$Pointer$[head][head] == 0) && head == head) && #memory_$Pointer$[head][head] == 0)) || !(0 == \old(#memory_$Pointer$)[head][head]) - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 612]: Loop Invariant [2019-10-13 21:04:50,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2019-10-13 21:04:50,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2019-10-13 21:04:50,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2019-10-13 21:04:50,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (#memory_$Pointer$[s][s] == 0 && #memory_$Pointer$[s][s] == 0) && 2 <= len - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 51 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 142 SDtfs, 46 SDslu, 302 SDs, 0 SdLazy, 92 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 23 PreInvPairs, 25 NumberOfFragments, 117 HoareAnnotationTreeSize, 23 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 13565 SizeOfPredicates, 4 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 7/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 106, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.967741935483871, AVG_VARS_REMOVED_DURING_WEAKENING: 1.4516129032258065, AVG_WEAKENED_CONJUNCTS: 0.1935483870967742, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...