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/xor2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-17 21:14:13,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-17 21:14:13,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-17 21:14:13,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-17 21:14:13,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-17 21:14:13,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-17 21:14:13,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-17 21:14:13,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-17 21:14:13,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-17 21:14:13,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-17 21:14:13,760 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-17 21:14:13,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-17 21:14:13,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-17 21:14:13,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-17 21:14:13,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-17 21:14:13,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-17 21:14:13,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-17 21:14:13,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-17 21:14:13,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-17 21:14:13,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-17 21:14:13,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-17 21:14:13,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-17 21:14:13,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-17 21:14:13,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-17 21:14:13,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-17 21:14:13,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-17 21:14:13,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-17 21:14:13,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-17 21:14:13,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-17 21:14:13,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-17 21:14:13,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-17 21:14:13,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-17 21:14:13,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-17 21:14:13,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-17 21:14:13,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-17 21:14:13,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-17 21:14:13,791 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 [2019-08-17 21:14:13,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-17 21:14:13,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-17 21:14:13,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-17 21:14:13,819 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-17 21:14:13,819 INFO L138 SettingsManager]: * Use SBE=true [2019-08-17 21:14:13,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-17 21:14:13,820 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-17 21:14:13,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-17 21:14:13,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-17 21:14:13,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-17 21:14:13,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-17 21:14:13,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-17 21:14:13,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-17 21:14:13,823 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-17 21:14:13,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-17 21:14:13,823 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-17 21:14:13,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-17 21:14:13,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-17 21:14:13,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-17 21:14:13,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-17 21:14:13,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-17 21:14:13,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-17 21:14:13,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-17 21:14:13,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-17 21:14:13,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-17 21:14:13,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-17 21:14:13,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-17 21:14:13,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-17 21:14:13,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-17 21:14:13,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-17 21:14:13,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-17 21:14:13,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-17 21:14:13,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-17 21:14:13,897 INFO L275 PluginConnector]: CDTParser initialized [2019-08-17 21:14:13,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/xor2.i [2019-08-17 21:14:13,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ebea8a7/c4903c95eec4449c9c255ef6820a2c62/FLAG01eb74945 [2019-08-17 21:14:14,478 INFO L306 CDTParser]: Found 1 translation units. [2019-08-17 21:14:14,478 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/xor2.i [2019-08-17 21:14:14,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ebea8a7/c4903c95eec4449c9c255ef6820a2c62/FLAG01eb74945 [2019-08-17 21:14:14,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ebea8a7/c4903c95eec4449c9c255ef6820a2c62 [2019-08-17 21:14:14,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-17 21:14:14,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-17 21:14:14,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-17 21:14:14,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-17 21:14:14,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-17 21:14:14,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.08 09:14:14" (1/1) ... [2019-08-17 21:14:14,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237c8fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:14, skipping insertion in model container [2019-08-17 21:14:14,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.08 09:14:14" (1/1) ... [2019-08-17 21:14:14,870 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-17 21:14:14,887 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-17 21:14:15,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-17 21:14:15,063 INFO L188 MainTranslator]: Completed pre-run [2019-08-17 21:14:15,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-17 21:14:15,188 INFO L192 MainTranslator]: Completed translation [2019-08-17 21:14:15,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15 WrapperNode [2019-08-17 21:14:15,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-17 21:14:15,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-17 21:14:15,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-17 21:14:15,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-17 21:14:15,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-17 21:14:15,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-17 21:14:15,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-17 21:14:15,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-17 21:14:15,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:14:15" (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 [2019-08-17 21:14:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-17 21:14:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-17 21:14:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure xor [2019-08-17 21:14:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-17 21:14:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-17 21:14:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-17 21:14:15,308 INFO L130 BoogieDeclarations]: Found specification of procedure xor [2019-08-17 21:14:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-17 21:14:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-17 21:14:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-17 21:14:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-17 21:14:15,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-17 21:14:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-17 21:14:15,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-17 21:14:15,597 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-17 21:14:15,598 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-17 21:14:15,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.08 09:14:15 BoogieIcfgContainer [2019-08-17 21:14:15,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-17 21:14:15,600 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-17 21:14:15,600 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-17 21:14:15,600 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-17 21:14:15,606 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.08 09:14:15" (1/1) ... [2019-08-17 21:14:15,620 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-17 21:14:15,623 INFO L155 IcfgInterpreter]: Building call graph [2019-08-17 21:14:15,630 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-17 21:14:15,637 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-17 21:14:15,639 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-17 21:14:15,727 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 [2019-08-17 21:14:15,728 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:15,753 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:14:15,753 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:14:15,754 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-17 21:14:15,765 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 17 [2019-08-17 21:14:15,886 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 [2019-08-17 21:14:15,887 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:15,899 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:14:15,901 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:14:15,901 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:28 [2019-08-17 21:14:15,980 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,001 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2019-08-17 21:14:16,002 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,038 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2019-08-17 21:14:16,039 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,186 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 32 [2019-08-17 21:14:16,187 INFO L567 ElimStorePlain]: treesize reduction 206, result has 19.8 percent of original size [2019-08-17 21:14:16,189 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-08-17 21:14:16,190 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:297, output treesize:51 [2019-08-17 21:14:16,263 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,264 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,270 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 67 [2019-08-17 21:14:16,272 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,296 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,302 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 68 [2019-08-17 21:14:16,303 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,338 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,346 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2019-08-17 21:14:16,347 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,360 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,361 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,363 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 70 [2019-08-17 21:14:16,364 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,619 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-08-17 21:14:16,620 INFO L567 ElimStorePlain]: treesize reduction 48, result has 80.6 percent of original size [2019-08-17 21:14:16,624 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: 8 dim-0 vars, and 4 xjuncts. [2019-08-17 21:14:16,626 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 9 variables, input treesize:291, output treesize:199 [2019-08-17 21:14:16,647 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:14:16,697 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,699 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,701 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,711 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 71 [2019-08-17 21:14:16,712 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,750 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 76 [2019-08-17 21:14:16,751 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,768 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,769 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,788 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 70 [2019-08-17 21:14:16,790 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,808 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,809 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,814 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 65 [2019-08-17 21:14:16,815 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,832 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,834 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,836 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,846 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 69 [2019-08-17 21:14:16,848 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,864 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,865 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,870 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 68 [2019-08-17 21:14:16,871 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,886 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-17 21:14:16,892 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 67 [2019-08-17 21:14:16,893 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:16,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,912 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:14:16,914 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 74 [2019-08-17 21:14:16,915 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:17,395 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 108 [2019-08-17 21:14:17,396 INFO L567 ElimStorePlain]: treesize reduction 58, result has 87.5 percent of original size [2019-08-17 21:14:17,401 INFO L496 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 1 dim-2 vars, End of recursive call: 16 dim-0 vars, and 8 xjuncts. [2019-08-17 21:14:17,403 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 17 variables, input treesize:605, output treesize:407 [2019-08-17 21:14:17,470 INFO L341 Elim1Store]: treesize reduction 40, result has 23.1 percent of original size [2019-08-17 21:14:17,471 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 24 [2019-08-17 21:14:17,471 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:17,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:14:17,477 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:14:17,478 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-08-17 21:14:17,486 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 13 treesize of output 9 [2019-08-17 21:14:17,487 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:14:17,494 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:14:17,495 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:14:17,495 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:14 [2019-08-17 21:14:17,501 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-17 21:14:17,501 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-17 21:14:17,504 INFO L179 IcfgInterpreter]: Location mainErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 102#(and (or (not (= main_~ret~0 main_~ret2~0)) (not (= main_~ret~0 main_~ret5~0))) (exists ((v_prenex_18 Int) (v_xor_~res~0_BEFORE_RETURN_3 Int)) (or (and (not (< main_~i~2 999)) (<= main_~ret5~0 2147483647) (= main_~ret5~0 (+ (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296) (- 4294967296))) (<= 0 (+ main_~ret5~0 2147483648)) (= (select (select |#memory_int| |main_~#x~0.base|) (+ |main_~#x~0.offset| 3996)) main_~temp~0) (not (<= (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296) 2147483647))) (and (<= (mod v_prenex_18 4294967296) 2147483647) (not (< main_~i~2 999)) (<= main_~ret5~0 2147483647) (<= 0 (+ main_~ret5~0 2147483648)) (= main_~ret5~0 (mod v_prenex_18 4294967296)) (= (select (select |#memory_int| |main_~#x~0.base|) (+ |main_~#x~0.offset| 3996)) main_~temp~0))))) [2019-08-17 21:14:17,514 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-17 21:14:17,514 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-17 21:14:17,516 INFO L168 Benchmark]: Toolchain (without parser) took 2661.22 ms. Allocated memory was 129.0 MB in the beginning and 211.8 MB in the end (delta: 82.8 MB). Free memory was 84.5 MB in the beginning and 112.5 MB in the end (delta: -28.0 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,517 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 129.0 MB. Free memory was 103.0 MB in the beginning and 102.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.74 ms. Allocated memory was 129.0 MB in the beginning and 195.6 MB in the end (delta: 66.6 MB). Free memory was 84.1 MB in the beginning and 172.8 MB in the end (delta: -88.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,519 INFO L168 Benchmark]: Boogie Preprocessor took 52.83 ms. Allocated memory is still 195.6 MB. Free memory was 172.8 MB in the beginning and 170.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,519 INFO L168 Benchmark]: RCFGBuilder took 355.73 ms. Allocated memory is still 195.6 MB. Free memory was 170.4 MB in the beginning and 154.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,520 INFO L168 Benchmark]: Symbolic Interpretation took 1914.35 ms. Allocated memory was 195.6 MB in the beginning and 211.8 MB in the end (delta: 16.3 MB). Free memory was 154.4 MB in the beginning and 112.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2019-08-17 21:14:17,524 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 42]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 102#(and (or (not (= main_~ret~0 main_~ret2~0)) (not (= main_~ret~0 main_~ret5~0))) (exists ((v_prenex_18 Int) (v_xor_~res~0_BEFORE_RETURN_3 Int)) (or (and (not (< main_~i~2 999)) (<= main_~ret5~0 2147483647) (= main_~ret5~0 (+ (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296) (- 4294967296))) (<= 0 (+ main_~ret5~0 2147483648)) (= (select (select |#memory_int| |main_~#x~0.base|) (+ |main_~#x~0.offset| 3996)) main_~temp~0) (not (<= (mod v_xor_~res~0_BEFORE_RETURN_3 4294967296) 2147483647))) (and (<= (mod v_prenex_18 4294967296) 2147483647) (not (< main_~i~2 999)) (<= main_~ret5~0 2147483647) (<= 0 (+ main_~ret5~0 2147483648)) (= main_~ret5~0 (mod v_prenex_18 4294967296)) (= (select (select |#memory_int| |main_~#x~0.base|) (+ |main_~#x~0.offset| 3996)) main_~temp~0))))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 129.0 MB. Free memory was 103.0 MB in the beginning and 102.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.74 ms. Allocated memory was 129.0 MB in the beginning and 195.6 MB in the end (delta: 66.6 MB). Free memory was 84.1 MB in the beginning and 172.8 MB in the end (delta: -88.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.83 ms. Allocated memory is still 195.6 MB. Free memory was 172.8 MB in the beginning and 170.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.73 ms. Allocated memory is still 195.6 MB. Free memory was 170.4 MB in the beginning and 154.4 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1914.35 ms. Allocated memory was 195.6 MB in the beginning and 211.8 MB in the end (delta: 16.3 MB). Free memory was 154.4 MB in the beginning and 112.5 MB in the end (delta: 41.9 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...