java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_reverse_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-17 21:13:04,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-17 21:13:04,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-17 21:13:04,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-17 21:13:04,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-17 21:13:04,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-17 21:13:04,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-17 21:13:04,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-17 21:13:04,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-17 21:13:04,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-17 21:13:04,277 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-17 21:13:04,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-17 21:13:04,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-17 21:13:04,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-17 21:13:04,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-17 21:13:04,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-17 21:13:04,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-17 21:13:04,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-17 21:13:04,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-17 21:13:04,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-17 21:13:04,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-17 21:13:04,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-17 21:13:04,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-17 21:13:04,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-17 21:13:04,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-17 21:13:04,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-17 21:13:04,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-17 21:13:04,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-17 21:13:04,311 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 21:13:04,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-17 21:13:04,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-17 21:13:04,342 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-17 21:13:04,342 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-17 21:13:04,342 INFO L138 SettingsManager]: * Use SBE=true [2019-08-17 21:13:04,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-17 21:13:04,343 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-17 21:13:04,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-17 21:13:04,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-17 21:13:04,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-17 21:13:04,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-17 21:13:04,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-17 21:13:04,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-17 21:13:04,344 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-17 21:13:04,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-17 21:13:04,344 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-17 21:13:04,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-17 21:13:04,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-17 21:13:04,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-17 21:13:04,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-17 21:13:04,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-17 21:13:04,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-17 21:13:04,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-17 21:13:04,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-17 21:13:04,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-17 21:13:04,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-17 21:13:04,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-17 21:13:04,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-17 21:13:04,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-17 21:13:04,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-17 21:13:04,402 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-17 21:13:04,407 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-17 21:13:04,408 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-17 21:13:04,411 INFO L275 PluginConnector]: CDTParser initialized [2019-08-17 21:13:04,412 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_reverse_ground.i [2019-08-17 21:13:04,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ffbe29e/57039c1561be44539f74c18bd8cc8e91/FLAG0639e7241 [2019-08-17 21:13:04,974 INFO L306 CDTParser]: Found 1 translation units. [2019-08-17 21:13:04,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_reverse_ground.i [2019-08-17 21:13:04,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ffbe29e/57039c1561be44539f74c18bd8cc8e91/FLAG0639e7241 [2019-08-17 21:13:05,388 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9ffbe29e/57039c1561be44539f74c18bd8cc8e91 [2019-08-17 21:13:05,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-17 21:13:05,399 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-17 21:13:05,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-17 21:13:05,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-17 21:13:05,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-17 21:13:05,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@de2f7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05, skipping insertion in model container [2019-08-17 21:13:05,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,415 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-17 21:13:05,431 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-17 21:13:05,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-17 21:13:05,600 INFO L188 MainTranslator]: Completed pre-run [2019-08-17 21:13:05,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-17 21:13:05,646 INFO L192 MainTranslator]: Completed translation [2019-08-17 21:13:05,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05 WrapperNode [2019-08-17 21:13:05,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-17 21:13:05,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-17 21:13:05,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-17 21:13:05,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-17 21:13:05,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (1/1) ... [2019-08-17 21:13:05,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-17 21:13:05,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-17 21:13:05,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-17 21:13:05,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-17 21:13:05,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.08 09:13:05" (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 21:13:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-17 21:13:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-17 21:13:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-17 21:13:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-17 21:13:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-17 21:13:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-17 21:13:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-17 21:13:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-17 21:13:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-17 21:13:06,061 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-17 21:13:06,062 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-17 21:13:06,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.08 09:13:06 BoogieIcfgContainer [2019-08-17 21:13:06,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-17 21:13:06,064 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-17 21:13:06,064 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-17 21:13:06,065 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-17 21:13:06,066 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.08 09:13:06" (1/1) ... [2019-08-17 21:13:06,088 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-17 21:13:06,090 INFO L155 IcfgInterpreter]: Building call graph [2019-08-17 21:13:06,108 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-17 21:13:06,125 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-17 21:13:06,130 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-17 21:13:06,275 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 21:13:06,276 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,299 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:13:06,300 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,300 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-17 21:13:06,314 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 17 [2019-08-17 21:13:06,459 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 21:13:06,460 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:13:06,474 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 21:13:06,475 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:27, output treesize:28 [2019-08-17 21:13:06,526 INFO L341 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2019-08-17 21:13:06,527 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 21:13:06,528 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,548 INFO L567 ElimStorePlain]: treesize reduction 3, result has 88.9 percent of original size [2019-08-17 21:13:06,549 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,549 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:24 [2019-08-17 21:13:06,732 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-08-17 21:13:06,732 INFO L341 Elim1Store]: treesize reduction 62, result has 66.3 percent of original size [2019-08-17 21:13:06,733 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 136 [2019-08-17 21:13:06,735 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:06,736 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:06,741 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,803 INFO L567 ElimStorePlain]: treesize reduction 160, result has 18.8 percent of original size [2019-08-17 21:13:06,804 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,804 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:37 [2019-08-17 21:13:06,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:06,828 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,831 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,963 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-08-17 21:13:06,963 INFO L341 Elim1Store]: treesize reduction 47, result has 71.2 percent of original size [2019-08-17 21:13:06,964 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 54 treesize of output 150 [2019-08-17 21:13:06,968 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:06,983 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,987 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,989 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,991 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:06,997 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-17 21:13:07,289 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-08-17 21:13:07,289 INFO L341 Elim1Store]: treesize reduction 47, result has 83.0 percent of original size [2019-08-17 21:13:07,290 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 67 treesize of output 274 [2019-08-17 21:13:07,294 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:07,390 INFO L567 ElimStorePlain]: treesize reduction 331, result has 24.6 percent of original size [2019-08-17 21:13:07,391 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-08-17 21:13:07,391 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:122, output treesize:108 [2019-08-17 21:13:07,416 INFO L341 Elim1Store]: treesize reduction 48, result has 20.0 percent of original size [2019-08-17 21:13:07,417 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 21:13:07,417 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-17 21:13:07,426 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-17 21:13:07,426 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-17 21:13:07,426 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:28, output treesize:24 [2019-08-17 21:13:07,441 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:07,451 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:07,464 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-17 21:13:07,469 INFO L185 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 [2019-08-17 21:13:07,470 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-17 21:13:07,470 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-17 21:13:07,474 INFO L179 IcfgInterpreter]: Location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has predicate 118#(and (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-17 21:13:07,485 INFO L92 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-17 21:13:07,486 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-17 21:13:07,489 INFO L168 Benchmark]: Toolchain (without parser) took 2088.28 ms. Allocated memory was 130.0 MB in the beginning and 216.0 MB in the end (delta: 86.0 MB). Free memory was 85.5 MB in the beginning and 164.4 MB in the end (delta: -78.9 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-08-17 21:13:07,490 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 130.0 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-17 21:13:07,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 246.73 ms. Allocated memory is still 130.0 MB. Free memory was 85.5 MB in the beginning and 75.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-17 21:13:07,496 INFO L168 Benchmark]: Boogie Preprocessor took 127.41 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 75.0 MB in the beginning and 173.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-17 21:13:07,497 INFO L168 Benchmark]: RCFGBuilder took 288.59 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-08-17 21:13:07,503 INFO L168 Benchmark]: Symbolic Interpretation took 1421.66 ms. Allocated memory was 198.2 MB in the beginning and 216.0 MB in the end (delta: 17.8 MB). Free memory was 159.5 MB in the beginning and 164.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. [2019-08-17 21:13:07,507 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 2]: 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 118#(and (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 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 0.43 ms. Allocated memory is still 130.0 MB. Free memory is still 103.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 246.73 ms. Allocated memory is still 130.0 MB. Free memory was 85.5 MB in the beginning and 75.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.41 ms. Allocated memory was 130.0 MB in the beginning and 198.2 MB in the end (delta: 68.2 MB). Free memory was 75.0 MB in the beginning and 173.8 MB in the end (delta: -98.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 288.59 ms. Allocated memory is still 198.2 MB. Free memory was 173.8 MB in the beginning and 159.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1421.66 ms. Allocated memory was 198.2 MB in the beginning and 216.0 MB in the end (delta: 17.8 MB). Free memory was 159.5 MB in the beginning and 164.4 MB in the end (delta: -4.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...