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_strcmp_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 19:04:46,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 19:04:46,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 19:04:46,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 19:04:46,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 19:04:46,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 19:04:46,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 19:04:46,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 19:04:46,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 19:04:46,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 19:04:46,349 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 19:04:46,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 19:04:46,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 19:04:46,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 19:04:46,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 19:04:46,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 19:04:46,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 19:04:46,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 19:04:46,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 19:04:46,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 19:04:46,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 19:04:46,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 19:04:46,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 19:04:46,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 19:04:46,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-22 19:04:46,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 19:04:46,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 19:04:46,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 19:04:46,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 19:04:46,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 19:04:46,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 19:04:46,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 19:04:46,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 19:04:46,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 19:04:46,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 19:04:46,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 19:04:46,394 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 [2019-08-22 19:04:46,423 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 19:04:46,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 19:04:46,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 19:04:46,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 19:04:46,426 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 19:04:46,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 19:04:46,427 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 19:04:46,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 19:04:46,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 19:04:46,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 19:04:46,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 19:04:46,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 19:04:46,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 19:04:46,429 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 19:04:46,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 19:04:46,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 19:04:46,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 19:04:46,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 19:04:46,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 19:04:46,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 19:04:46,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 19:04:46,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 19:04:46,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 19:04:46,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 19:04:46,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 19:04:46,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 19:04:46,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 19:04:46,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 19:04:46,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 19:04:46,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 19:04:46,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 19:04:46,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 19:04:46,500 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 19:04:46,500 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 19:04:46,501 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-08-22 19:04:46,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c20b00e/ae44a39fecc243999e257d9ab942f12d/FLAG78b019a7d [2019-08-22 19:04:47,012 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 19:04:47,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-08-22 19:04:47,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c20b00e/ae44a39fecc243999e257d9ab942f12d/FLAG78b019a7d [2019-08-22 19:04:47,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c20b00e/ae44a39fecc243999e257d9ab942f12d [2019-08-22 19:04:47,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 19:04:47,410 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 19:04:47,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 19:04:47,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 19:04:47,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 19:04:47,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20723235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47, skipping insertion in model container [2019-08-22 19:04:47,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,428 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 19:04:47,447 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 19:04:47,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:04:47,668 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 19:04:47,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:04:47,791 INFO L192 MainTranslator]: Completed translation [2019-08-22 19:04:47,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47 WrapperNode [2019-08-22 19:04:47,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 19:04:47,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 19:04:47,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 19:04:47,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 19:04:47,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (1/1) ... [2019-08-22 19:04:47,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 19:04:47,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 19:04:47,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 19:04:47,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 19:04:47,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:04:47" (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 [2019-08-22 19:04:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 19:04:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 19:04:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-22 19:04:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _strcmp [2019-08-22 19:04:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure _strcmp [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-22 19:04:47,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 19:04:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-22 19:04:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-22 19:04:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-22 19:04:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 19:04:47,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 19:04:48,223 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 19:04:48,224 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-22 19:04:48,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:48 BoogieIcfgContainer [2019-08-22 19:04:48,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 19:04:48,228 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 19:04:48,228 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 19:04:48,229 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 19:04:48,230 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:04:48" (1/1) ... [2019-08-22 19:04:48,244 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 19:04:48,247 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 19:04:48,253 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 19:04:48,261 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 19:04:48,263 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 19:04:48,359 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 [2019-08-22 19:04:48,359 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 19:04:48,375 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 19:04:48,375 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-22 19:04:48,376 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-22 19:04:48,395 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 21 [2019-08-22 19:04:48,597 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 19:04:48,598 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 1 case distinctions, treesize of input 39 treesize of output 67 [2019-08-22 19:04:48,599 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 19:04:48,672 INFO L567 ElimStorePlain]: treesize reduction 28, result has 67.4 percent of original size [2019-08-22 19:04:48,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-22 19:04:48,681 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-22 19:04:48,683 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:59, output treesize:69