/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/forester-heap/dll-reverse.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 02:08:41,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 02:08:41,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 02:08:41,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 02:08:41,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 02:08:41,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 02:08:41,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 02:08:41,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 02:08:41,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 02:08:41,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 02:08:41,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 02:08:41,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 02:08:41,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 02:08:41,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 02:08:41,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 02:08:41,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 02:08:41,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 02:08:41,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 02:08:41,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 02:08:41,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 02:08:41,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 02:08:41,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 02:08:41,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 02:08:41,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 02:08:41,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 02:08:41,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 02:08:41,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 02:08:41,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 02:08:41,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 02:08:41,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 02:08:41,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 02:08:41,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 02:08:41,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 02:08:41,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 02:08:41,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 02:08:41,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 02:08:41,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 02:08:41,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 02:08:41,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 02:08:41,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 02:08:41,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 02:08:41,282 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 [2019-11-07 02:08:41,302 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 02:08:41,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 02:08:41,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 02:08:41,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 02:08:41,304 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 02:08:41,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 02:08:41,305 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 02:08:41,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 02:08:41,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 02:08:41,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 02:08:41,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 02:08:41,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 02:08:41,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 02:08:41,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 02:08:41,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 02:08:41,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 02:08:41,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 02:08:41,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 02:08:41,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 02:08:41,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 02:08:41,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 02:08:41,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 02:08:41,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 02:08:41,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 02:08:41,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 02:08:41,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 02:08:41,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 02:08:41,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 02:08:41,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 02:08:41,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 02:08:41,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 02:08:41,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 02:08:41,608 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 02:08:41,609 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 02:08:41,609 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-reverse.i [2019-11-07 02:08:41,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53b2188f/93e9734e5d984ba9846485b88b4b333d/FLAGd6c1a73a4 [2019-11-07 02:08:42,192 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 02:08:42,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/forester-heap/dll-reverse.i [2019-11-07 02:08:42,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53b2188f/93e9734e5d984ba9846485b88b4b333d/FLAGd6c1a73a4 [2019-11-07 02:08:42,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d53b2188f/93e9734e5d984ba9846485b88b4b333d [2019-11-07 02:08:42,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 02:08:42,525 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 02:08:42,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 02:08:42,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 02:08:42,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 02:08:42,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:42" (1/1) ... [2019-11-07 02:08:42,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2990ef1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:42, skipping insertion in model container [2019-11-07 02:08:42,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:08:42" (1/1) ... [2019-11-07 02:08:42,543 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 02:08:42,602 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 02:08:43,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:08:43,052 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 02:08:43,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:08:43,158 INFO L192 MainTranslator]: Completed translation [2019-11-07 02:08:43,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43 WrapperNode [2019-11-07 02:08:43,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 02:08:43,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 02:08:43,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 02:08:43,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 02:08:43,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (1/1) ... [2019-11-07 02:08:43,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 02:08:43,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 02:08:43,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 02:08:43,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 02:08:43,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (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 [2019-11-07 02:08:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 02:08:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 02:08:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 02:08:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-07 02:08:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-07 02:08:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-07 02:08:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-07 02:08:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-07 02:08:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-07 02:08:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-07 02:08:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-07 02:08:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-07 02:08:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-07 02:08:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-07 02:08:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-07 02:08:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-07 02:08:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-07 02:08:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-07 02:08:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-07 02:08:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-07 02:08:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-07 02:08:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-07 02:08:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-07 02:08:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-07 02:08:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-07 02:08:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-07 02:08:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-07 02:08:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-07 02:08:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-07 02:08:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-07 02:08:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-07 02:08:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-07 02:08:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-07 02:08:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-07 02:08:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 02:08:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 02:08:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 02:08:44,493 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 02:08:44,494 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-07 02:08:44,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:44 BoogieIcfgContainer [2019-11-07 02:08:44,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 02:08:44,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 02:08:44,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 02:08:44,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 02:08:44,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:08:42" (1/3) ... [2019-11-07 02:08:44,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9b63b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:44, skipping insertion in model container [2019-11-07 02:08:44,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:08:43" (2/3) ... [2019-11-07 02:08:44,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9b63b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:08:44, skipping insertion in model container [2019-11-07 02:08:44,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:08:44" (3/3) ... [2019-11-07 02:08:44,504 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-reverse.i [2019-11-07 02:08:44,514 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 02:08:44,523 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-07 02:08:44,536 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-07 02:08:44,564 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 02:08:44,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 02:08:44,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 02:08:44,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 02:08:44,565 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 02:08:44,565 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 02:08:44,565 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 02:08:44,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 02:08:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-07 02:08:44,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-07 02:08:44,593 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:44,594 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:44,596 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:44,603 INFO L82 PathProgramCache]: Analyzing trace with hash 824743736, now seen corresponding path program 1 times [2019-11-07 02:08:44,615 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:44,615 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729578014] [2019-11-07 02:08:44,615 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:44,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:44,794 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729578014] [2019-11-07 02:08:44,795 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:08:44,795 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 02:08:44,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541049696] [2019-11-07 02:08:44,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 02:08:44,803 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:08:44,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 02:08:44,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 02:08:44,826 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2019-11-07 02:08:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:08:44,854 INFO L93 Difference]: Finished difference Result 55 states and 83 transitions. [2019-11-07 02:08:44,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 02:08:44,856 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-07 02:08:44,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:08:44,868 INFO L225 Difference]: With dead ends: 55 [2019-11-07 02:08:44,869 INFO L226 Difference]: Without dead ends: 27 [2019-11-07 02:08:44,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 02:08:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-07 02:08:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-07 02:08:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-07 02:08:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2019-11-07 02:08:44,916 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2019-11-07 02:08:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:08:44,916 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2019-11-07 02:08:44,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 02:08:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2019-11-07 02:08:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 02:08:44,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:44,917 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:44,918 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:44,918 INFO L82 PathProgramCache]: Analyzing trace with hash 184257169, now seen corresponding path program 1 times [2019-11-07 02:08:44,919 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:44,919 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395538280] [2019-11-07 02:08:44,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:44,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:45,043 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395538280] [2019-11-07 02:08:45,043 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:08:45,043 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 02:08:45,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525527389] [2019-11-07 02:08:45,045 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 02:08:45,045 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:08:45,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 02:08:45,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 02:08:45,046 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 5 states. [2019-11-07 02:08:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:08:45,582 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2019-11-07 02:08:45,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 02:08:45,583 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-11-07 02:08:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:08:45,584 INFO L225 Difference]: With dead ends: 56 [2019-11-07 02:08:45,585 INFO L226 Difference]: Without dead ends: 37 [2019-11-07 02:08:45,586 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-07 02:08:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-07 02:08:45,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2019-11-07 02:08:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-07 02:08:45,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2019-11-07 02:08:45,593 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 12 [2019-11-07 02:08:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:08:45,593 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2019-11-07 02:08:45,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 02:08:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-11-07 02:08:45,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-07 02:08:45,594 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:45,595 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:45,595 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:45,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:45,595 INFO L82 PathProgramCache]: Analyzing trace with hash 184255919, now seen corresponding path program 1 times [2019-11-07 02:08:45,596 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:45,596 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242118193] [2019-11-07 02:08:45,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:45,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:45,673 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242118193] [2019-11-07 02:08:45,673 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:08:45,674 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 02:08:45,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479063960] [2019-11-07 02:08:45,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 02:08:45,674 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:08:45,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 02:08:45,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 02:08:45,675 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 4 states. [2019-11-07 02:08:45,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:08:45,835 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2019-11-07 02:08:45,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 02:08:45,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-11-07 02:08:45,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:08:45,837 INFO L225 Difference]: With dead ends: 51 [2019-11-07 02:08:45,838 INFO L226 Difference]: Without dead ends: 41 [2019-11-07 02:08:45,838 INFO L630 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 [2019-11-07 02:08:45,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-07 02:08:45,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-11-07 02:08:45,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-07 02:08:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2019-11-07 02:08:45,845 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 12 [2019-11-07 02:08:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:08:45,846 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2019-11-07 02:08:45,846 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 02:08:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2019-11-07 02:08:45,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 02:08:45,847 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:08:45,847 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:08:45,847 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:08:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:08:45,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1749318528, now seen corresponding path program 1 times [2019-11-07 02:08:45,848 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:08:45,848 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701090275] [2019-11-07 02:08:45,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:08:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:46,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 02:08:46,036 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701090275] [2019-11-07 02:08:46,036 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812293107] [2019-11-07 02:08:46,036 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 [2019-11-07 02:08:46,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:08:46,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-07 02:08:46,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 02:08:46,286 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-07 02:08:46,287 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:46,306 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:46,307 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-07 02:08:46,307 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:14, output treesize:13 [2019-11-07 02:08:46,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:46,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:46,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:46,420 INFO L392 ElimStorePlain]: Different costs {0=[|#valid|], 1=[|v_#valid_28|]} [2019-11-07 02:08:46,466 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2019-11-07 02:08:46,467 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:46,538 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 138 [2019-11-07 02:08:46,539 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:48,078 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 120 [2019-11-07 02:08:48,079 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,198 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:48,199 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 797 treesize of output 801 [2019-11-07 02:08:48,200 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:49,240 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 117 [2019-11-07 02:08:49,241 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:49,251 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_72|, |#memory_$Pointer$.offset|, v_prenex_1, v_prenex_2, |v_#memory_int_69|], 2=[|v_#memory_int_70|, |v_#memory_int_68|, |v_#memory_$Pointer$.base_50|, |v_#memory_$Pointer$.offset_50|], 13=[v_prenex_3, v_prenex_4]} [2019-11-07 02:08:49,532 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:49,533 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 162 [2019-11-07 02:08:49,534 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:49,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:49,670 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 118 [2019-11-07 02:08:49,671 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:51,477 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 123 DAG size of output: 119 [2019-11-07 02:08:51,477 INFO L567 ElimStorePlain]: treesize reduction 26, result has 97.6 percent of original size [2019-11-07 02:08:51,496 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:51,519 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:52,250 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-07 02:08:52,251 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:52,300 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 791 treesize of output 780 [2019-11-07 02:08:52,301 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:52,780 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-11-07 02:08:52,781 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:52,788 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:53,023 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-11-07 02:08:53,023 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:53,046 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 542 treesize of output 530 [2019-11-07 02:08:53,047 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:53,230 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-11-07 02:08:53,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:53,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:53,246 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 527 treesize of output 375 [2019-11-07 02:08:53,248 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:53,433 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-07 02:08:53,433 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:53,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-07 02:08:53,448 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 372 treesize of output 343 [2019-11-07 02:08:53,449 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:53,769 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-11-07 02:08:53,769 INFO L567 ElimStorePlain]: treesize reduction 4, result has 99.2 percent of original size [2019-11-07 02:08:53,811 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:53,812 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 115 [2019-11-07 02:08:53,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:53,815 INFO L496 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:53,847 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-07 02:08:53,848 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 97 treesize of output 125 [2019-11-07 02:08:53,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:53,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 02:08:53,852 INFO L496 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-11-07 02:08:54,138 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-11-07 02:08:54,139 INFO L567 ElimStorePlain]: treesize reduction 207, result has 69.6 percent of original size [2019-11-07 02:08:54,148 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 32 [2019-11-07 02:08:54,151 INFO L496 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-07 02:08:54,352 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 02:08:54,356 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: no XNF at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:244) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:178) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:83) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-07 02:08:54,376 INFO L168 Benchmark]: Toolchain (without parser) took 11844.85 ms. Allocated memory was 146.3 MB in the beginning and 245.4 MB in the end (delta: 99.1 MB). Free memory was 103.0 MB in the beginning and 148.8 MB in the end (delta: -45.7 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,383 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.98 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: -67.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,384 INFO L168 Benchmark]: Boogie Preprocessor took 73.28 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 167.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,388 INFO L168 Benchmark]: RCFGBuilder took 1262.33 ms. Allocated memory is still 203.9 MB. Free memory was 167.2 MB in the beginning and 100.5 MB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,389 INFO L168 Benchmark]: TraceAbstraction took 9871.48 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 99.8 MB in the beginning and 148.8 MB in the end (delta: -48.9 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. [2019-11-07 02:08:54,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.98 ms. Allocated memory was 146.3 MB in the beginning and 203.9 MB in the end (delta: 57.7 MB). Free memory was 102.8 MB in the beginning and 169.9 MB in the end (delta: -67.0 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.28 ms. Allocated memory is still 203.9 MB. Free memory was 169.9 MB in the beginning and 167.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1262.33 ms. Allocated memory is still 203.9 MB. Free memory was 167.2 MB in the beginning and 100.5 MB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9871.48 ms. Allocated memory was 203.9 MB in the beginning and 245.4 MB in the end (delta: 41.4 MB). Free memory was 99.8 MB in the beginning and 148.8 MB in the end (delta: -48.9 MB). Peak memory consumption was 51.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: no XNF de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: no XNF: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:244) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...