/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/sll2c_prepend_equal.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:15:33,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:15:33,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:15:33,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:15:33,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:15:33,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:15:33,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:15:33,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:15:33,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:15:33,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:15:33,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:15:33,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:15:33,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:15:33,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:15:33,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:15:33,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:15:33,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:15:33,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:15:33,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:15:33,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:15:33,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:15:33,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:15:33,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:15:33,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:15:33,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 16:15:33,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:15:33,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:15:33,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:15:33,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:15:33,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:15:33,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:15:33,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:15:33,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:15:33,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:15:33,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:15:33,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:15:33,929 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 16:15:33,945 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:15:33,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:15:33,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:15:33,946 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:15:33,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:15:33,947 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:15:33,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:15:33,947 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:15:33,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:15:33,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:15:33,948 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:15:33,948 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:15:33,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:15:33,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:15:33,949 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:15:33,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:15:33,951 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:15:33,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:15:33,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:15:33,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:15:33,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:15:33,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:15:33,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:15:33,953 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:15:33,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:15:33,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:15:33,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:15:33,954 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:15:33,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:15:33,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:15:33,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:15:33,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:15:33,958 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:15:34,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:15:34,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:15:34,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:15:34,275 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:15:34,275 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:15:34,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-simple/sll2c_prepend_equal.i [2019-11-24 16:15:34,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1deab0b1b/822955f2d6e34840bdb175e5d4840c83/FLAG603ac7482 [2019-11-24 16:15:34,944 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:15:34,945 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-simple/sll2c_prepend_equal.i [2019-11-24 16:15:34,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1deab0b1b/822955f2d6e34840bdb175e5d4840c83/FLAG603ac7482 [2019-11-24 16:15:35,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1deab0b1b/822955f2d6e34840bdb175e5d4840c83 [2019-11-24 16:15:35,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:15:35,188 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:15:35,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:15:35,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:15:35,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:15:35,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce7b69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35, skipping insertion in model container [2019-11-24 16:15:35,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:15:35,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:15:35,714 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:15:35,725 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:15:35,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:15:35,839 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:15:35,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35 WrapperNode [2019-11-24 16:15:35,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:15:35,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:15:35,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:15:35,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:15:35,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:15:35,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:15:35,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:15:35,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:15:35,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (1/1) ... [2019-11-24 16:15:35,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:15:35,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:15:35,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:15:35,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:15:35,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:15:35" (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 16:15:36,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 16:15:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-24 16:15:36,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:15:36,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:15:36,717 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:15:36,717 INFO L284 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-24 16:15:36,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:15:36 BoogieIcfgContainer [2019-11-24 16:15:36,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:15:36,721 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:15:36,721 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:15:36,721 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:15:36,722 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:15:36" (1/1) ... [2019-11-24 16:15:36,723 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 16:15:36,764 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 16:15:36,765 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:15:36,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:15:36,788 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:15:36,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:15:37,103 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:37,667 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:38,050 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:38,379 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:38,604 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:39,207 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:39,595 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 232 [2019-11-24 16:15:39,753 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-11-24 16:15:40,422 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2019-11-24 16:15:40,910 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 331 [2019-11-24 16:15:40,949 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:40,989 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:42,327 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:42,361 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:42,387 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:42,882 WARN L192 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2019-11-24 16:15:43,143 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-24 16:15:43,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 16:15:43,656 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2019-11-24 16:15:46,026 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 15 [2019-11-24 16:15:46,264 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6912 conjuctions. This might take some time... [2019-11-24 16:15:49,789 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 197 [2019-11-24 16:15:50,076 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 248 [2019-11-24 16:15:50,331 WARN L192 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 245 [2019-11-24 16:15:50,742 WARN L192 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 313 [2019-11-24 16:15:51,270 WARN L192 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 307 [2019-11-24 16:15:51,909 WARN L192 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 306 [2019-11-24 16:15:52,219 WARN L192 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 304 [2019-11-24 16:15:52,730 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-24 16:15:52,758 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-11-24 16:15:52,758 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-11-24 16:15:52,760 INFO L168 Benchmark]: Toolchain (without parser) took 17571.98 ms. Allocated memory was 142.6 MB in the beginning and 526.4 MB in the end (delta: 383.8 MB). Free memory was 100.6 MB in the beginning and 445.8 MB in the end (delta: -345.2 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,763 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 142.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,767 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 100.4 MB in the beginning and 168.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.69 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 166.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,769 INFO L168 Benchmark]: Boogie Preprocessor took 42.54 ms. Allocated memory is still 203.9 MB. Free memory was 166.0 MB in the beginning and 164.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,773 INFO L168 Benchmark]: RCFGBuilder took 778.58 ms. Allocated memory is still 203.9 MB. Free memory was 164.0 MB in the beginning and 119.7 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2019-11-24 16:15:52,774 INFO L168 Benchmark]: Sifa took 16037.87 ms. Allocated memory was 203.9 MB in the beginning and 526.4 MB in the end (delta: 322.4 MB). Free memory was 119.7 MB in the beginning and 445.8 MB in the end (delta: -326.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 16:15:52,778 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 142.6 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 142.6 MB in the beginning and 203.9 MB in the end (delta: 61.3 MB). Free memory was 100.4 MB in the beginning and 168.7 MB in the end (delta: -68.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.69 ms. Allocated memory is still 203.9 MB. Free memory was 168.7 MB in the beginning and 166.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.54 ms. Allocated memory is still 203.9 MB. Free memory was 166.0 MB in the beginning and 164.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 778.58 ms. Allocated memory is still 203.9 MB. Free memory was 164.0 MB in the beginning and 119.7 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. * Sifa took 16037.87 ms. Allocated memory was 203.9 MB in the beginning and 526.4 MB in the end (delta: 322.4 MB). Free memory was 119.7 MB in the beginning and 445.8 MB in the end (delta: -326.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 15967, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 4, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 53, TOOLS_POST_TIME[ms]: 6237, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 53, TOOLS_QUANTIFIERELIM_TIME[ms]: 6204, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 3170, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 83, FLUID_YES_ANSWERS: 3, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 476, DOMAIN_ALPHA_APPLICATIONS: 3, DOMAIN_ALPHA_TIME[ms]: 6172, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME[ms]: 2906, DOMAIN_ISSUBSETEQ_APPLICATIONS: 13, DOMAIN_ISSUBSETEQ_TIME[ms]: 85, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME[ms]: 12, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 4984, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 4983, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 13, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 3, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 13, DAG_COMPRESSION_PROCESSED_NODES: 117, DAG_COMPRESSION_RETAINED_NODES: 42 - UnprovableResult [Line: 629]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 1362#(or (and (not (= ULTIMATE.start_main_~count~0 (+ ULTIMATE.start_main_~len~0 1))) (exists ((v_ULTIMATE.start_main_~ptr~0.offset_23 Int) (v_ULTIMATE.start_main_~ptr~0.base_23 Int)) (and (= ULTIMATE.start_main_~ptr~0.base (select (select |#memory_$Pointer$.base| v_ULTIMATE.start_main_~ptr~0.base_23) v_ULTIMATE.start_main_~ptr~0.offset_23)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|) ULTIMATE.start_main_~ptr~0.base) (= ULTIMATE.start_main_~ptr~0.offset (select (select |#memory_$Pointer$.offset| v_ULTIMATE.start_main_~ptr~0.base_23) v_ULTIMATE.start_main_~ptr~0.offset_23)) (= ULTIMATE.start_main_~ptr~0.offset (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0.base|) |ULTIMATE.start_main_~#s~0.offset|)) (= ULTIMATE.start_main_~data~0 (select (select |#memory_int| v_ULTIMATE.start_main_~ptr~0.base_23) (+ v_ULTIMATE.start_main_~ptr~0.offset_23 4)))))) (not (= ULTIMATE.start_main_~data~0 (select (select |#memory_int| ULTIMATE.start_main_~ptr~0.base) (+ ULTIMATE.start_main_~ptr~0.offset 4))))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...