java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_sentinel.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-29 23:23:24,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-29 23:23:24,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-29 23:23:24,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-29 23:23:24,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-29 23:23:24,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-29 23:23:24,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-29 23:23:24,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-29 23:23:24,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-29 23:23:24,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-29 23:23:24,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-29 23:23:24,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-29 23:23:24,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-29 23:23:24,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-29 23:23:24,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-29 23:23:24,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-29 23:23:24,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-29 23:23:24,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-29 23:23:24,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-29 23:23:24,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-29 23:23:24,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-29 23:23:24,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-29 23:23:24,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-29 23:23:24,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-29 23:23:24,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-29 23:23:24,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-29 23:23:24,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-29 23:23:24,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-29 23:23:24,300 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 [2019-08-29 23:23:24,336 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-29 23:23:24,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-29 23:23:24,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-29 23:23:24,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-29 23:23:24,341 INFO L138 SettingsManager]: * Use SBE=true [2019-08-29 23:23:24,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-29 23:23:24,342 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-29 23:23:24,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-29 23:23:24,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-29 23:23:24,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-29 23:23:24,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-29 23:23:24,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-29 23:23:24,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-29 23:23:24,343 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-29 23:23:24,343 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-29 23:23:24,343 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-29 23:23:24,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-29 23:23:24,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-29 23:23:24,344 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-29 23:23:24,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-29 23:23:24,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-29 23:23:24,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-29 23:23:24,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-29 23:23:24,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-29 23:23:24,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-29 23:23:24,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-29 23:23:24,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-29 23:23:24,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-29 23:23:24,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-29 23:23:24,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-29 23:23:24,392 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-29 23:23:24,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-29 23:23:24,397 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-29 23:23:24,397 INFO L275 PluginConnector]: CDTParser initialized [2019-08-29 23:23:24,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_sentinel.i.v+cfa-reducer.c [2019-08-29 23:23:24,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce33425a/99a91450f6d6420d8bebb9670f82b346/FLAGe8328dd84 [2019-08-29 23:23:24,864 INFO L306 CDTParser]: Found 1 translation units. [2019-08-29 23:23:24,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_sentinel.i.v+cfa-reducer.c [2019-08-29 23:23:24,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce33425a/99a91450f6d6420d8bebb9670f82b346/FLAGe8328dd84 [2019-08-29 23:23:25,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ce33425a/99a91450f6d6420d8bebb9670f82b346 [2019-08-29 23:23:25,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-29 23:23:25,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-29 23:23:25,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-29 23:23:25,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-29 23:23:25,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-29 23:23:25,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e594744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25, skipping insertion in model container [2019-08-29 23:23:25,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,309 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-29 23:23:25,330 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-29 23:23:25,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-29 23:23:25,543 INFO L188 MainTranslator]: Completed pre-run [2019-08-29 23:23:25,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-29 23:23:25,669 INFO L192 MainTranslator]: Completed translation [2019-08-29 23:23:25,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25 WrapperNode [2019-08-29 23:23:25,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-29 23:23:25,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-29 23:23:25,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-29 23:23:25,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-29 23:23:25,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:25,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-29 23:23:25,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-29 23:23:25,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-29 23:23:25,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-29 23:23:25,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:23:25" (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 [2019-08-29 23:23:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-29 23:23:25,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-29 23:23:25,774 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-29 23:23:25,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-29 23:23:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-29 23:23:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-29 23:23:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-29 23:23:25,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-29 23:23:25,983 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-29 23:23:25,984 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-29 23:23:25,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:23:25 BoogieIcfgContainer [2019-08-29 23:23:25,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-29 23:23:25,986 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-29 23:23:25,986 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-29 23:23:25,987 INFO L275 PluginConnector]: Sifa initialized [2019-08-29 23:23:25,988 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:23:25" (1/1) ... [2019-08-29 23:23:26,054 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-29 23:23:26,054 INFO L169 IcfgInterpreter]: Building call graph [2019-08-29 23:23:26,062 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-29 23:23:26,070 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-29 23:23:26,071 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-29 23:23:26,177 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 [2019-08-29 23:23:26,178 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-29 23:23:26,211 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,212 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:18 [2019-08-29 23:23:26,231 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 29 for LOIs [2019-08-29 23:23:26,381 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-08-29 23:23:26,381 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,396 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-29 23:23:26,398 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,398 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:28 [2019-08-29 23:23:26,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-29 23:23:26,444 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2019-08-29 23:23:26,445 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,501 INFO L567 ElimStorePlain]: treesize reduction 120, result has 17.2 percent of original size [2019-08-29 23:23:26,502 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-29 23:23:26,502 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:25