/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/reducercommutativity/max.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 18:26:15,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 18:26:15,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 18:26:15,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 18:26:15,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 18:26:15,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 18:26:15,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 18:26:15,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 18:26:15,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 18:26:15,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 18:26:15,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 18:26:15,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 18:26:15,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 18:26:15,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 18:26:15,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 18:26:15,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 18:26:15,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 18:26:15,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 18:26:15,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 18:26:15,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 18:26:15,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 18:26:15,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 18:26:15,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 18:26:15,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 18:26:15,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 18:26:15,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 18:26:15,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 18:26:15,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 18:26:15,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 18:26:15,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 18:26:15,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 18:26:15,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 18:26:15,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 18:26:15,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 18:26:15,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 18:26:15,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 18:26:15,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 18:26:15,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 18:26:15,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 18:26:15,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 18:26:15,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 18:26:15,723 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 18:26:15,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 18:26:15,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 18:26:15,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 18:26:15,759 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 18:26:15,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 18:26:15,759 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 18:26:15,759 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 18:26:15,763 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 18:26:15,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 18:26:15,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 18:26:15,763 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 18:26:15,764 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 18:26:15,764 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 18:26:15,764 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 18:26:15,764 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 18:26:15,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 18:26:15,766 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 18:26:15,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 18:26:15,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 18:26:15,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 18:26:15,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 18:26:15,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 18:26:15,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 18:26:15,768 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 18:26:15,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 18:26:15,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 18:26:15,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 18:26:15,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 18:26:15,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 18:26:15,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 18:26:15,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 18:26:15,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 18:26:15,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 18:26:15,771 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 18:26:15,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 18:26:15,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 18:26:15,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 18:26:15,771 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 18:26:16,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 18:26:16,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 18:26:16,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 18:26:16,084 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 18:26:16,084 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 18:26:16,085 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/max.i [2019-11-24 18:26:16,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6456b8113/63dd6e2978fa48f19351e2c1aa8f2909/FLAG55978a915 [2019-11-24 18:26:16,613 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 18:26:16,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/max.i [2019-11-24 18:26:16,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6456b8113/63dd6e2978fa48f19351e2c1aa8f2909/FLAG55978a915 [2019-11-24 18:26:16,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6456b8113/63dd6e2978fa48f19351e2c1aa8f2909 [2019-11-24 18:26:16,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 18:26:16,984 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 18:26:16,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 18:26:16,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 18:26:16,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 18:26:16,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:26:16" (1/1) ... [2019-11-24 18:26:16,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1372a16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:16, skipping insertion in model container [2019-11-24 18:26:16,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:26:16" (1/1) ... [2019-11-24 18:26:17,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 18:26:17,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 18:26:17,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:26:17,207 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 18:26:17,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 18:26:17,246 INFO L208 MainTranslator]: Completed translation [2019-11-24 18:26:17,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17 WrapperNode [2019-11-24 18:26:17,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 18:26:17,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 18:26:17,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 18:26:17,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 18:26:17,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 18:26:17,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 18:26:17,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 18:26:17,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 18:26:17,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (1/1) ... [2019-11-24 18:26:17,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 18:26:17,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 18:26:17,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 18:26:17,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 18:26:17,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:26:17" (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 18:26:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-24 18:26:17,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 18:26:17,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 18:26:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-24 18:26:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-24 18:26:17,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-24 18:26:18,049 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 18:26:18,049 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-24 18:26:18,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:26:18 BoogieIcfgContainer [2019-11-24 18:26:18,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 18:26:18,051 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-11-24 18:26:18,051 INFO L271 PluginConnector]: Initializing Sifa... [2019-11-24 18:26:18,052 INFO L275 PluginConnector]: Sifa initialized [2019-11-24 18:26:18,053 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:26:18" (1/1) ... [2019-11-24 18:26:18,053 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 18:26:18,079 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-11-24 18:26:18,079 INFO L166 IcfgInterpreter]: Building call graph [2019-11-24 18:26:18,087 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-24 18:26:18,094 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-24 18:26:18,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-24 18:26:18,880 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-11-24 18:26:19,062 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 162 [2019-11-24 18:26:19,369 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 242 [2019-11-24 18:26:19,673 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 239 [2019-11-24 18:26:20,272 WARN L192 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 417 [2019-11-24 18:26:20,940 WARN L192 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 408 [2019-11-24 18:26:21,945 WARN L192 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 701 DAG size of output: 683 [2019-11-24 18:26:23,266 WARN L192 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 679 DAG size of output: 676 [2019-11-24 18:26:25,393 WARN L192 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 1282 DAG size of output: 1260 [2019-11-24 18:26:28,216 WARN L192 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1246 [2019-11-24 18:26:34,168 WARN L192 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 2345 DAG size of output: 2315 [2019-11-24 18:26:44,557 WARN L192 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 2304 DAG size of output: 2299 [2019-11-24 18:27:00,107 WARN L192 SmtUtils]: Spent 14.76 s on a formula simplification. DAG size of input: 4178 DAG size of output: 4146 [2019-11-24 18:27:14,162 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5375 conjuctions. This might take some time... [2019-11-24 18:27:18,431 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6940 conjuctions. This might take some time... [2019-11-24 18:27:42,269 WARN L192 SmtUtils]: Spent 15.12 s on a formula simplification. DAG size of input: 4138 DAG size of output: 4131