/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/SifaCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/list-simple/dll2c_remove_all.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:13:50,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:13:50,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:13:50,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:13:50,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:13:50,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:13:50,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:13:50,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:13:50,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:13:50,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:13:50,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:13:50,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:13:50,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:13:50,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:13:50,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:13:50,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:13:50,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:13:50,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:13:50,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:13:50,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:13:50,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:13:50,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:13:50,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:13:50,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:13:50,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 16:13:50,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 16:13:50,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 16:13:50,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 16:13:50,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 16:13:50,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 16:13:50,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:13:50,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:13:50,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:13:50,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:13:50,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:13:50,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:13:50,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:13:50,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:13:50,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:13:50,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:13:50,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:13:50,329 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 16:13:50,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:13:50,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:13:50,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:13:50,345 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:13:50,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:13:50,346 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:13:50,346 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:13:50,346 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:13:50,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:13:50,347 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:13:50,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:13:50,347 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:13:50,347 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:13:50,347 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:13:50,348 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:13:50,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:13:50,348 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:13:50,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:13:50,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:13:50,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:13:50,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:13:50,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:13:50,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:13:50,350 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:13:50,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:13:50,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:13:50,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:13:50,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:13:50,351 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:13:50,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:13:50,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:13:50,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:13:50,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:13:50,352 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:13:50,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:13:50,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:13:50,352 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:13:50,352 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:13:50,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:13:50,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:13:50,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:13:50,649 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:13:50,650 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:13:50,650 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/dll2c_remove_all.i [2019-11-24 16:13:50,719 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebba6b39d/fcf7f3eb14cd43a4a2fac6fb3b3d27df/FLAGfa1a8ce43 [2019-11-24 16:13:51,241 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:13:51,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/dll2c_remove_all.i [2019-11-24 16:13:51,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebba6b39d/fcf7f3eb14cd43a4a2fac6fb3b3d27df/FLAGfa1a8ce43 [2019-11-24 16:13:51,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebba6b39d/fcf7f3eb14cd43a4a2fac6fb3b3d27df [2019-11-24 16:13:51,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:13:51,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:13:51,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:13:51,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:13:51,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:13:51,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:13:51" (1/1) ... [2019-11-24 16:13:51,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6318e249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:51, skipping insertion in model container [2019-11-24 16:13:51,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:13:51" (1/1) ... [2019-11-24 16:13:51,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:13:51,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:13:52,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:13:52,115 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:13:52,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:13:52,231 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:13:52,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52 WrapperNode [2019-11-24 16:13:52,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:13:52,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:13:52,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:13:52,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:13:52,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:13:52,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:13:52,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:13:52,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:13:52,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (1/1) ... [2019-11-24 16:13:52,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:13:52,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:13:52,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:13:52,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:13:52,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:13:52" (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 [2019-11-24 16:13:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 16:13:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 16:13:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:13:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:13:53,144 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:13:53,144 INFO L284 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-24 16:13:53,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:13:53 BoogieIcfgContainer [2019-11-24 16:13:53,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:13:53,146 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:13:53,146 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:13:53,147 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:13:53,148 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:13:53" (1/1) ... [2019-11-24 16:13:53,148 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-11-24 16:13:53,172 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 16:13:53,173 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:13:53,180 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:13:53,187 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:13:53,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:13:53,544 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:54,199 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:54,596 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:54,868 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:55,293 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:55,490 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:55,597 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:13:56,721 WARN L192 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 118 [2019-11-24 16:13:57,117 WARN L192 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-11-24 16:13:57,214 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 25