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/loops/invert_string-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 07:19:27,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 07:19:27,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 07:19:27,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 07:19:27,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 07:19:27,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 07:19:27,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 07:19:27,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 07:19:27,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 07:19:27,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 07:19:27,165 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 07:19:27,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 07:19:27,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 07:19:27,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 07:19:27,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 07:19:27,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 07:19:27,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 07:19:27,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 07:19:27,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 07:19:27,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 07:19:27,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 07:19:27,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 07:19:27,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 07:19:27,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 07:19:27,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 07:19:27,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 07:19:27,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 07:19:27,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 07:19:27,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 07:19:27,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 07:19:27,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 07:19:27,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 07:19:27,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 07:19:27,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 07:19:27,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 07:19:27,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 07:19:27,211 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 [2019-08-18 07:19:27,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 07:19:27,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 07:19:27,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 07:19:27,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 07:19:27,237 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 07:19:27,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 07:19:27,238 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 07:19:27,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 07:19:27,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 07:19:27,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 07:19:27,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 07:19:27,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 07:19:27,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 07:19:27,240 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 07:19:27,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 07:19:27,241 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 07:19:27,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 07:19:27,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 07:19:27,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 07:19:27,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 07:19:27,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 07:19:27,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 07:19:27,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 07:19:27,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 07:19:27,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 07:19:27,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 07:19:27,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 07:19:27,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 07:19:27,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 07:19:27,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 07:19:27,318 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 07:19:27,322 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 07:19:27,324 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 07:19:27,324 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 07:19:27,325 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/invert_string-1.c [2019-08-18 07:19:27,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442182355/0a5d98cdf7774cc7b128ec18de8f0536/FLAG0edf3faf5 [2019-08-18 07:19:27,826 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 07:19:27,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/invert_string-1.c [2019-08-18 07:19:27,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442182355/0a5d98cdf7774cc7b128ec18de8f0536/FLAG0edf3faf5 [2019-08-18 07:19:28,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/442182355/0a5d98cdf7774cc7b128ec18de8f0536 [2019-08-18 07:19:28,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 07:19:28,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 07:19:28,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 07:19:28,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 07:19:28,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 07:19:28,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79d9aaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28, skipping insertion in model container [2019-08-18 07:19:28,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,254 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 07:19:28,272 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 07:19:28,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:19:28,444 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 07:19:28,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:19:28,577 INFO L192 MainTranslator]: Completed translation [2019-08-18 07:19:28,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28 WrapperNode [2019-08-18 07:19:28,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 07:19:28,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 07:19:28,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 07:19:28,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 07:19:28,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 07:19:28,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 07:19:28,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 07:19:28,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 07:19:28,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:28" (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 [2019-08-18 07:19:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 07:19:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 07:19:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-18 07:19:28,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 07:19:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 07:19:28,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-18 07:19:28,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-18 07:19:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-18 07:19:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 07:19:28,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 07:19:28,929 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 07:19:28,929 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-18 07:19:28,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:28 BoogieIcfgContainer [2019-08-18 07:19:28,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 07:19:28,932 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 07:19:28,932 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 07:19:28,932 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 07:19:28,933 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:28" (1/1) ... [2019-08-18 07:19:28,946 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 07:19:28,948 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 07:19:28,957 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 07:19:28,968 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 07:19:28,970 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 07:19:29,073 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 [2019-08-18 07:19:29,073 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,097 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:29,097 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,098 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-18 07:19:29,113 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 17 [2019-08-18 07:19:29,322 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 [2019-08-18 07:19:29,322 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,335 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:29,337 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,337 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:29,354 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 14 treesize of output 10 [2019-08-18 07:19:29,355 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,373 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:29,374 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,375 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-08-18 07:19:29,496 INFO L341 Elim1Store]: treesize reduction 30, result has 69.4 percent of original size [2019-08-18 07:19:29,497 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 81 [2019-08-18 07:19:29,499 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,566 INFO L567 ElimStorePlain]: treesize reduction 29, result has 69.1 percent of original size [2019-08-18 07:19:29,567 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,567 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:65 [2019-08-18 07:19:29,572 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:29,573 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:29,577 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:29,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,601 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,604 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,609 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 55 [2019-08-18 07:19:29,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,635 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,640 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2019-08-18 07:19:29,641 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,658 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,793 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-08-18 07:19:29,794 INFO L341 Elim1Store]: treesize reduction 28, result has 74.5 percent of original size [2019-08-18 07:19:29,795 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 123 [2019-08-18 07:19:29,800 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:29,813 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,815 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:29,930 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2019-08-18 07:19:29,931 INFO L341 Elim1Store]: treesize reduction 28, result has 74.5 percent of original size [2019-08-18 07:19:29,932 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 127 [2019-08-18 07:19:29,935 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,095 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2019-08-18 07:19:30,095 INFO L567 ElimStorePlain]: treesize reduction 278, result has 27.8 percent of original size [2019-08-18 07:19:30,096 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:30,096 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:247, output treesize:107 [2019-08-18 07:19:30,123 INFO L341 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2019-08-18 07:19:30,124 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 18 treesize of output 18 [2019-08-18 07:19:30,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,129 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:30,129 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,130 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-08-18 07:19:30,141 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 14 treesize of output 10 [2019-08-18 07:19:30,141 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,151 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:30,151 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,152 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-08-18 07:19:30,228 INFO L341 Elim1Store]: treesize reduction 30, result has 69.4 percent of original size [2019-08-18 07:19:30,229 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 81 [2019-08-18 07:19:30,231 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,289 INFO L567 ElimStorePlain]: treesize reduction 32, result has 68.0 percent of original size [2019-08-18 07:19:30,290 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,290 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:68 [2019-08-18 07:19:30,297 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,299 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,301 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,339 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,349 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2019-08-18 07:19:30,351 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,363 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,365 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,469 INFO L341 Elim1Store]: treesize reduction 28, result has 74.5 percent of original size [2019-08-18 07:19:30,470 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 121 [2019-08-18 07:19:30,472 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,494 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,606 INFO L341 Elim1Store]: treesize reduction 28, result has 74.5 percent of original size [2019-08-18 07:19:30,607 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 125 [2019-08-18 07:19:30,609 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,623 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,625 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:30,628 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2019-08-18 07:19:30,629 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,759 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-08-18 07:19:30,760 INFO L567 ElimStorePlain]: treesize reduction 217, result has 35.8 percent of original size [2019-08-18 07:19:30,761 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:30,761 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:239, output treesize:121 [2019-08-18 07:19:30,783 INFO L341 Elim1Store]: treesize reduction 31, result has 18.4 percent of original size [2019-08-18 07:19:30,784 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 18 treesize of output 18 [2019-08-18 07:19:30,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,790 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:30,791 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:30,791 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:18 [2019-08-18 07:19:30,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:30,879 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 [2019-08-18 07:19:30,880 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 07:19:30,880 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 07:19:30,883 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 169#(and (exists ((v_prenex_12 Int) (|v_main_~#str2~0.base_BEFORE_CALL_1| Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~j~0_BEFORE_CALL_1 Int) (|v_main_~#str1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#str2~0.offset_BEFORE_CALL_1| Int) (|v_main_~#str1~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| v_prenex_8) (+ v_prenex_9 v_prenex_12)) (select (select |#memory_int| v_prenex_13) (+ v_prenex_10 v_prenex_11))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_1|) (+ v_main_~j~0_BEFORE_CALL_1 |v_main_~#str2~0.offset_BEFORE_CALL_1|)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_1|) (+ |v_main_~#str1~0.offset_BEFORE_CALL_1| v_main_~i~0_BEFORE_CALL_1)))))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-18 07:19:30,895 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-18 07:19:30,897 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 07:19:30,904 INFO L168 Benchmark]: Toolchain (without parser) took 2666.27 ms. Allocated memory was 136.3 MB in the beginning and 213.4 MB in the end (delta: 77.1 MB). Free memory was 84.0 MB in the beginning and 88.8 MB in the end (delta: -4.8 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,907 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.15 ms. Allocated memory was 136.3 MB in the beginning and 196.6 MB in the end (delta: 60.3 MB). Free memory was 83.8 MB in the beginning and 174.3 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,912 INFO L168 Benchmark]: Boogie Preprocessor took 34.32 ms. Allocated memory is still 196.6 MB. Free memory was 174.3 MB in the beginning and 172.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,914 INFO L168 Benchmark]: RCFGBuilder took 318.21 ms. Allocated memory is still 196.6 MB. Free memory was 172.6 MB in the beginning and 156.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,916 INFO L168 Benchmark]: Symbolic Interpretation took 1970.72 ms. Allocated memory was 196.6 MB in the beginning and 213.4 MB in the end (delta: 16.8 MB). Free memory was 156.9 MB in the beginning and 88.8 MB in the end (delta: 68.1 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:30,924 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 6]: 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 169#(and (exists ((v_prenex_12 Int) (|v_main_~#str2~0.base_BEFORE_CALL_1| Int) (v_prenex_11 Int) (v_prenex_13 Int) (v_main_~i~0_BEFORE_CALL_1 Int) (v_prenex_10 Int) (v_prenex_8 Int) (v_prenex_9 Int) (v_main_~j~0_BEFORE_CALL_1 Int) (|v_main_~#str1~0.offset_BEFORE_CALL_1| Int) (|v_main_~#str2~0.offset_BEFORE_CALL_1| Int) (|v_main_~#str1~0.base_BEFORE_CALL_1| Int)) (or (and (= |__VERIFIER_assert_#in~cond| 0) (not (= (select (select |#memory_int| v_prenex_8) (+ v_prenex_9 v_prenex_12)) (select (select |#memory_int| v_prenex_13) (+ v_prenex_10 v_prenex_11))))) (and (= |__VERIFIER_assert_#in~cond| 1) (= (select (select |#memory_int| |v_main_~#str2~0.base_BEFORE_CALL_1|) (+ v_main_~j~0_BEFORE_CALL_1 |v_main_~#str2~0.offset_BEFORE_CALL_1|)) (select (select |#memory_int| |v_main_~#str1~0.base_BEFORE_CALL_1|) (+ |v_main_~#str1~0.offset_BEFORE_CALL_1| v_main_~i~0_BEFORE_CALL_1)))))) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 339.15 ms. Allocated memory was 136.3 MB in the beginning and 196.6 MB in the end (delta: 60.3 MB). Free memory was 83.8 MB in the beginning and 174.3 MB in the end (delta: -90.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.32 ms. Allocated memory is still 196.6 MB. Free memory was 174.3 MB in the beginning and 172.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 318.21 ms. Allocated memory is still 196.6 MB. Free memory was 172.6 MB in the beginning and 156.9 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1970.72 ms. Allocated memory was 196.6 MB in the beginning and 213.4 MB in the end (delta: 16.8 MB). Free memory was 156.9 MB in the beginning and 88.8 MB in the end (delta: 68.1 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...