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/string-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 07:19:51,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 07:19:51,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 07:19:51,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 07:19:51,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 07:19:51,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 07:19:51,199 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 07:19:51,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 07:19:51,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 07:19:51,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 07:19:51,219 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 07:19:51,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 07:19:51,221 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 07:19:51,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 07:19:51,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 07:19:51,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 07:19:51,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 07:19:51,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 07:19:51,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 07:19:51,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 07:19:51,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 07:19:51,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 07:19:51,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 07:19:51,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 07:19:51,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-18 07:19:51,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-18 07:19:51,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-18 07:19:51,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-18 07:19:51,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-18 07:19:51,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-18 07:19:51,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 07:19:51,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 07:19:51,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 07:19:51,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 07:19:51,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 07:19:51,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 07:19:51,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 07:19:51,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 07:19:51,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 07:19:51,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 07:19:51,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 07:19:51,257 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 07:19:51,280 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 07:19:51,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 07:19:51,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 07:19:51,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 07:19:51,287 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 07:19:51,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 07:19:51,287 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 07:19:51,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 07:19:51,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 07:19:51,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 07:19:51,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 07:19:51,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 07:19:51,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 07:19:51,289 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 07:19:51,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 07:19:51,290 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 07:19:51,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 07:19:51,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 07:19:51,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 07:19:51,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 07:19:51,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 07:19:51,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 07:19:51,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 07:19:51,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 07:19:51,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 07:19:51,292 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 07:19:51,292 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 07:19:51,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 07:19:51,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 07:19:51,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 07:19:51,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 07:19:51,374 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 07:19:51,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 07:19:51,378 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 07:19:51,379 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-1.i [2019-08-18 07:19:51,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529fab359/6cca72e09c8c4bb0917d576036d38652/FLAGb5e00df82 [2019-08-18 07:19:51,909 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 07:19:51,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string-1.i [2019-08-18 07:19:51,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529fab359/6cca72e09c8c4bb0917d576036d38652/FLAGb5e00df82 [2019-08-18 07:19:52,310 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/529fab359/6cca72e09c8c4bb0917d576036d38652 [2019-08-18 07:19:52,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 07:19:52,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 07:19:52,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 07:19:52,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 07:19:52,325 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 07:19:52,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a15d0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52, skipping insertion in model container [2019-08-18 07:19:52,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,337 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 07:19:52,356 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 07:19:52,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:19:52,598 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 07:19:52,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 07:19:52,753 INFO L192 MainTranslator]: Completed translation [2019-08-18 07:19:52,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52 WrapperNode [2019-08-18 07:19:52,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 07:19:52,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 07:19:52,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 07:19:52,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 07:19:52,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (1/1) ... [2019-08-18 07:19:52,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 07:19:52,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 07:19:52,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 07:19:52,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 07:19:52,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:52" (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 07:19:52,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 07:19:52,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 07:19:52,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-18 07:19:52,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 07:19:52,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 07:19:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 07:19:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-18 07:19:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-18 07:19:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 07:19:52,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-18 07:19:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-18 07:19:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-18 07:19:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-18 07:19:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 07:19:52,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 07:19:53,208 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 07:19:53,209 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-08-18 07:19:53,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:53 BoogieIcfgContainer [2019-08-18 07:19:53,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 07:19:53,211 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 07:19:53,211 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 07:19:53,211 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 07:19:53,212 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:53" (1/1) ... [2019-08-18 07:19:53,224 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 07:19:53,226 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 07:19:53,233 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 07:19:53,242 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 07:19:53,244 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 07:19:53,337 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 07:19:53,338 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:53,368 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:53,369 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-18 07:19:53,370 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-18 07:19:53,385 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 17 [2019-08-18 07:19:53,593 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 07:19:53,594 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:53,616 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:53,618 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 07:19:53,620 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:53,682 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:53,683 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 23 treesize of output 56 [2019-08-18 07:19:53,685 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:53,756 INFO L567 ElimStorePlain]: treesize reduction 25, result has 62.7 percent of original size [2019-08-18 07:19:53,758 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 07:19:53,760 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:45 [2019-08-18 07:19:53,772 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:53,802 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:53,815 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2019-08-18 07:19:53,818 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:53,839 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:53,897 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:53,898 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 2 case distinctions, treesize of input 53 treesize of output 99 [2019-08-18 07:19:53,900 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,067 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-08-18 07:19:54,068 INFO L567 ElimStorePlain]: treesize reduction 46, result has 69.3 percent of original size [2019-08-18 07:19:54,070 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:54,070 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:110 [2019-08-18 07:19:54,083 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 07:19:54,084 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,094 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,095 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 07:19:54,096 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:54,106 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,147 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,148 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 23 treesize of output 56 [2019-08-18 07:19:54,150 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,210 INFO L567 ElimStorePlain]: treesize reduction 25, result has 62.7 percent of original size [2019-08-18 07:19:54,212 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 07:19:54,212 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:45 [2019-08-18 07:19:54,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,239 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:54,248 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2019-08-18 07:19:54,249 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:54,316 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,316 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 2 case distinctions, treesize of input 59 treesize of output 105 [2019-08-18 07:19:54,318 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,497 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-08-18 07:19:54,498 INFO L567 ElimStorePlain]: treesize reduction 52, result has 69.6 percent of original size [2019-08-18 07:19:54,499 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:54,500 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:121, output treesize:125 [2019-08-18 07:19:54,509 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 07:19:54,510 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,519 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,520 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 07:19:54,521 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:54,532 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,571 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,572 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 23 treesize of output 56 [2019-08-18 07:19:54,573 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,625 INFO L567 ElimStorePlain]: treesize reduction 25, result has 62.7 percent of original size [2019-08-18 07:19:54,626 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 07:19:54,626 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:45 [2019-08-18 07:19:54,629 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:54,648 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2019-08-18 07:19:54,649 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:54,698 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,698 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 2 case distinctions, treesize of input 53 treesize of output 99 [2019-08-18 07:19:54,700 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,825 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-08-18 07:19:54,825 INFO L567 ElimStorePlain]: treesize reduction 46, result has 69.3 percent of original size [2019-08-18 07:19:54,826 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:54,827 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:110 [2019-08-18 07:19:54,835 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 07:19:54,836 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,847 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,848 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 07:19:54,848 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:54,855 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,865 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,883 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,885 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,924 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:54,924 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 23 treesize of output 56 [2019-08-18 07:19:54,925 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:54,972 INFO L567 ElimStorePlain]: treesize reduction 25, result has 62.7 percent of original size [2019-08-18 07:19:54,973 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 07:19:54,974 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:45 [2019-08-18 07:19:54,976 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:54,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:55,029 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:55,030 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 2 case distinctions, treesize of input 53 treesize of output 99 [2019-08-18 07:19:55,031 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:55,038 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 07:19:55,044 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 47 [2019-08-18 07:19:55,045 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:55,173 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-08-18 07:19:55,173 INFO L567 ElimStorePlain]: treesize reduction 46, result has 69.3 percent of original size [2019-08-18 07:19:55,175 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-18 07:19:55,175 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:106, output treesize:110 [2019-08-18 07:19:55,183 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 07:19:55,184 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 07:19:55,192 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 07:19:55,193 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 07:19:55,193 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2019-08-18 07:19:55,203 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:55,215 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:55,224 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:55,225 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:55,228 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-18 07:19:55,229 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 3 [2019-08-18 07:19:55,230 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-18 07:19:55,230 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-18 07:19:55,233 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 446#(and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-18 07:19:55,237 INFO L88 terpretationObserver]: ✔ All locations of interest are guaranteed to be unreachable. [2019-08-18 07:19:55,238 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-18 07:19:55,240 INFO L168 Benchmark]: Toolchain (without parser) took 2919.00 ms. Allocated memory was 129.5 MB in the beginning and 213.9 MB in the end (delta: 84.4 MB). Free memory was 85.9 MB in the beginning and 80.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,241 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.27 ms. Allocated memory was 129.5 MB in the beginning and 196.6 MB in the end (delta: 67.1 MB). Free memory was 85.7 MB in the beginning and 172.4 MB in the end (delta: -86.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,243 INFO L168 Benchmark]: Boogie Preprocessor took 53.55 ms. Allocated memory is still 196.6 MB. Free memory was 172.4 MB in the beginning and 170.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,243 INFO L168 Benchmark]: RCFGBuilder took 402.48 ms. Allocated memory is still 196.6 MB. Free memory was 170.4 MB in the beginning and 152.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,244 INFO L168 Benchmark]: Symbolic Interpretation took 2027.17 ms. Allocated memory was 196.6 MB in the beginning and 213.9 MB in the end (delta: 17.3 MB). Free memory was 152.8 MB in the beginning and 80.7 MB in the end (delta: 72.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. [2019-08-18 07:19:55,249 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 129.5 MB. Free memory was 103.7 MB in the beginning and 103.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 432.27 ms. Allocated memory was 129.5 MB in the beginning and 196.6 MB in the end (delta: 67.1 MB). Free memory was 85.7 MB in the beginning and 172.4 MB in the end (delta: -86.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.55 ms. Allocated memory is still 196.6 MB. Free memory was 172.4 MB in the beginning and 170.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.48 ms. Allocated memory is still 196.6 MB. Free memory was 170.4 MB in the beginning and 152.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 2027.17 ms. Allocated memory was 196.6 MB in the beginning and 213.9 MB in the end (delta: 17.3 MB). Free memory was 152.8 MB in the beginning and 80.7 MB in the end (delta: 72.1 MB). Peak memory consumption was 89.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...