/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/loop-new/half.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 16:36:09,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 16:36:09,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 16:36:09,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 16:36:09,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 16:36:09,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 16:36:09,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 16:36:09,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 16:36:09,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 16:36:09,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 16:36:09,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 16:36:09,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 16:36:09,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 16:36:09,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 16:36:09,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 16:36:09,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 16:36:09,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 16:36:09,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 16:36:09,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 16:36:09,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 16:36:09,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 16:36:09,934 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 16:36:09,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 16:36:09,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 16:36:09,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 16:36:09,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 16:36:09,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 16:36:09,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 16:36:09,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 16:36:09,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 16:36:09,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 16:36:09,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 16:36:09,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 16:36:09,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 16:36:09,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 16:36:09,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 16:36:09,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 16:36:09,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 16:36:09,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 16:36:09,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 16:36:09,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 16:36:09,957 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 16:36:09,980 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 16:36:09,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 16:36:09,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 16:36:09,981 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 16:36:09,982 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 16:36:09,982 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 16:36:09,982 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 16:36:09,982 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 16:36:09,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 16:36:09,983 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 16:36:09,984 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 16:36:09,984 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 16:36:09,984 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 16:36:09,985 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 16:36:09,985 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 16:36:09,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 16:36:09,986 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 16:36:09,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 16:36:09,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 16:36:09,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 16:36:09,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 16:36:09,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 16:36:09,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 16:36:09,988 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 16:36:09,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 16:36:09,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 16:36:09,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 16:36:09,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 16:36:09,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 16:36:09,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 16:36:09,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 16:36:09,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 16:36:09,991 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 16:36:09,991 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 16:36:09,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 16:36:09,992 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 16:36:09,992 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 16:36:09,992 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 16:36:10,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 16:36:10,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 16:36:10,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 16:36:10,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 16:36:10,278 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 16:36:10,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/half.i [2019-11-24 16:36:10,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52b6bda82/7ad2245f253640fcaad24065385eb08f/FLAG5101e0eb8 [2019-11-24 16:36:10,733 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 16:36:10,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/half.i [2019-11-24 16:36:10,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52b6bda82/7ad2245f253640fcaad24065385eb08f/FLAG5101e0eb8 [2019-11-24 16:36:11,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52b6bda82/7ad2245f253640fcaad24065385eb08f [2019-11-24 16:36:11,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 16:36:11,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 16:36:11,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 16:36:11,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 16:36:11,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 16:36:11,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8ccd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11, skipping insertion in model container [2019-11-24 16:36:11,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 16:36:11,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 16:36:11,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:36:11,363 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 16:36:11,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 16:36:11,388 INFO L208 MainTranslator]: Completed translation [2019-11-24 16:36:11,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11 WrapperNode [2019-11-24 16:36:11,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 16:36:11,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 16:36:11,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 16:36:11,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 16:36:11,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,499 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 16:36:11,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 16:36:11,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 16:36:11,500 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 16:36:11,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 16:36:11,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 16:36:11,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 16:36:11,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 16:36:11,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:36:11" (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 16:36:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 16:36:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 16:36:11,837 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 16:36:11,838 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 16:36:11,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:36:11 BoogieIcfgContainer [2019-11-24 16:36:11,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 16:36:11,839 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 16:36:11,840 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 16:36:11,840 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 16:36:11,841 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:36:11" (1/1) ... [2019-11-24 16:36:11,842 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 16:36:11,868 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 16:36:11,869 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 16:36:11,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 16:36:11,889 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 16:36:11,890 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 16:36:12,320 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-11-24 16:36:13,047 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 225 [2019-11-24 16:36:13,396 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 222 [2019-11-24 16:36:13,847 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 383 [2019-11-24 16:36:14,651 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 375 [2019-11-24 16:36:15,557 WARN L192 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 865 DAG size of output: 853 [2019-11-24 16:36:18,971 WARN L192 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 845 [2019-11-24 16:36:20,969 WARN L192 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 1844 DAG size of output: 1800 [2019-11-24 16:36:26,130 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6995 conjuctions. This might take some time... [2019-11-24 16:36:34,229 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5786 conjuctions. This might take some time... [2019-11-24 16:36:39,780 WARN L192 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1773 DAG size of output: 1769 [2019-11-24 16:36:45,219 WARN L192 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 3691 DAG size of output: 3630 [2019-11-24 16:36:52,219 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5529 conjuctions. This might take some time... [2019-11-24 16:36:54,514 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6290 conjuctions. This might take some time... [2019-11-24 16:37:05,638 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5634 conjuctions. This might take some time... [2019-11-24 16:37:09,427 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 12852 conjuctions. This might take some time... [2019-11-24 16:37:26,734 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5521 conjuctions. This might take some time... [2019-11-24 16:37:29,517 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 31300 conjuctions. This might take some time...