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-crafted/zero_sum_m4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 19:17:20,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 19:17:20,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 19:17:20,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 19:17:20,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 19:17:20,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 19:17:20,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 19:17:20,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 19:17:20,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 19:17:20,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 19:17:20,103 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 19:17:20,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 19:17:20,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 19:17:20,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 19:17:20,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 19:17:20,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 19:17:20,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 19:17:20,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 19:17:20,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 19:17:20,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 19:17:20,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 19:17:20,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 19:17:20,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 19:17:20,131 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 19:17:20,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-22 19:17:20,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 19:17:20,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 19:17:20,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 19:17:20,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 19:17:20,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 19:17:20,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 19:17:20,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 19:17:20,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 19:17:20,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 19:17:20,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 19:17:20,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 19:17:20,150 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 19:17:20,170 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 19:17:20,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 19:17:20,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 19:17:20,174 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 19:17:20,174 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 19:17:20,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 19:17:20,175 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 19:17:20,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 19:17:20,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 19:17:20,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 19:17:20,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 19:17:20,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 19:17:20,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 19:17:20,176 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 19:17:20,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 19:17:20,176 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 19:17:20,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 19:17:20,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 19:17:20,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 19:17:20,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 19:17:20,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 19:17:20,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 19:17:20,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 19:17:20,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 19:17:20,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 19:17:20,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 19:17:20,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 19:17:20,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 19:17:20,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 19:17:20,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 19:17:20,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 19:17:20,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 19:17:20,248 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 19:17:20,248 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 19:17:20,249 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2019-08-22 19:17:20,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6893961c7/7cfc893be8b14baaa7e9632890dbafd9/FLAG8f8856666 [2019-08-22 19:17:20,748 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 19:17:20,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/zero_sum_m4.c [2019-08-22 19:17:20,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6893961c7/7cfc893be8b14baaa7e9632890dbafd9/FLAG8f8856666 [2019-08-22 19:17:21,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6893961c7/7cfc893be8b14baaa7e9632890dbafd9 [2019-08-22 19:17:21,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 19:17:21,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 19:17:21,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 19:17:21,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 19:17:21,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 19:17:21,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c06ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21, skipping insertion in model container [2019-08-22 19:17:21,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,176 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 19:17:21,197 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 19:17:21,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:17:21,400 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 19:17:21,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 19:17:21,523 INFO L192 MainTranslator]: Completed translation [2019-08-22 19:17:21,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21 WrapperNode [2019-08-22 19:17:21,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 19:17:21,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 19:17:21,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 19:17:21,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 19:17:21,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 19:17:21,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 19:17:21,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 19:17:21,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 19:17:21,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:17:21" (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 19:17:21,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 19:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 19:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-22 19:17:21,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 19:17:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 19:17:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-22 19:17:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-22 19:17:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2019-08-22 19:17:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 19:17:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-22 19:17:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-22 19:17:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-22 19:17:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-22 19:17:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 19:17:21,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 19:17:21,909 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 19:17:21,910 INFO L283 CfgBuilder]: Removed 9 assume(true) statements. [2019-08-22 19:17:21,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:17:21 BoogieIcfgContainer [2019-08-22 19:17:21,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 19:17:21,912 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 19:17:21,912 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 19:17:21,912 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 19:17:21,914 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:17:21" (1/1) ... [2019-08-22 19:17:21,933 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 19:17:21,936 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 19:17:21,945 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 19:17:21,954 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 19:17:21,956 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 19:17:22,074 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 19:17:22,075 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 19:17:22,104 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 19:17:22,105 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-22 19:17:22,105 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-08-22 19:17:22,126 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 25 [2019-08-22 19:17:22,300 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 [2019-08-22 19:17:22,300 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 19:17:22,317 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 19:17:22,320 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-22 19:17:22,321 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:28