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/ludcmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 05:13:49,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 05:13:49,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 05:13:49,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 05:13:49,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 05:13:49,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 05:13:49,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 05:13:49,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 05:13:49,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 05:13:49,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 05:13:49,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 05:13:49,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 05:13:49,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 05:13:49,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 05:13:49,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 05:13:49,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 05:13:49,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 05:13:49,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 05:13:49,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 05:13:49,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 05:13:49,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 05:13:49,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 05:13:49,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 05:13:49,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 05:13:49,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 05:13:49,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 05:13:49,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 05:13:49,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 05:13:49,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 05:13:49,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 05:13:49,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 05:13:49,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 05:13:49,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 05:13:49,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 05:13:49,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 05:13:49,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 05:13:49,547 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 [2019-08-31 05:13:49,588 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 05:13:49,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 05:13:49,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 05:13:49,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 05:13:49,590 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 05:13:49,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 05:13:49,592 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 05:13:49,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 05:13:49,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 05:13:49,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 05:13:49,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 05:13:49,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 05:13:49,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 05:13:49,593 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 05:13:49,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 05:13:49,594 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 05:13:49,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 05:13:49,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 05:13:49,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 05:13:49,594 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 05:13:49,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 05:13:49,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 05:13:49,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 05:13:49,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 05:13:49,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 05:13:49,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 05:13:49,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 05:13:49,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 05:13:49,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 05:13:49,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 05:13:49,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 05:13:49,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 05:13:49,659 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 05:13:49,659 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 05:13:49,660 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/ludcmp.c [2019-08-31 05:13:49,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c8d435b/7e8b672a0c424ef2a14ad234884e0f63/FLAG8b459af76 [2019-08-31 05:13:50,147 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 05:13:50,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/ludcmp.c [2019-08-31 05:13:50,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c8d435b/7e8b672a0c424ef2a14ad234884e0f63/FLAG8b459af76 [2019-08-31 05:13:50,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73c8d435b/7e8b672a0c424ef2a14ad234884e0f63 [2019-08-31 05:13:50,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 05:13:50,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 05:13:50,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 05:13:50,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 05:13:50,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 05:13:50,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f060721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50, skipping insertion in model container [2019-08-31 05:13:50,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,545 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 05:13:50,581 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 05:13:50,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 05:13:50,798 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 05:13:50,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 05:13:50,957 INFO L192 MainTranslator]: Completed translation [2019-08-31 05:13:50,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50 WrapperNode [2019-08-31 05:13:50,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 05:13:50,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 05:13:50,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 05:13:50,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 05:13:50,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:50,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:51,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:51,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (1/1) ... [2019-08-31 05:13:51,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 05:13:51,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 05:13:51,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 05:13:51,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 05:13:51,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 05:13:50" (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 [2019-08-31 05:13:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 05:13:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 05:13:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-31 05:13:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2019-08-31 05:13:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 05:13:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2019-08-31 05:13:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 05:13:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-31 05:13:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2019-08-31 05:13:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2019-08-31 05:13:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 05:13:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-08-31 05:13:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-08-31 05:13:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 05:13:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 05:13:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 05:13:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 05:13:51,679 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 05:13:51,679 INFO L283 CfgBuilder]: Removed 11 assume(true) statements. [2019-08-31 05:13:51,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:13:51 BoogieIcfgContainer [2019-08-31 05:13:51,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 05:13:51,681 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 05:13:51,681 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 05:13:51,682 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 05:13:51,683 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 05:13:51" (1/1) ... [2019-08-31 05:13:51,737 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 05:13:51,737 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 05:13:51,749 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 05:13:51,759 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 05:13:51,760 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 05:13:51,867 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_13|], 21=[|v_#valid_20|]} [2019-08-31 05:13:51,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:51,888 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:51,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:51,900 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2019-08-31 05:13:51,901 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,054 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-08-31 05:13:52,056 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,089 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,112 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,128 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,135 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,137 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,213 INFO L341 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2019-08-31 05:13:52,214 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 42 [2019-08-31 05:13:52,217 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,356 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-08-31 05:13:52,357 INFO L567 ElimStorePlain]: treesize reduction 12, result has 86.8 percent of original size [2019-08-31 05:13:52,371 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,373 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 05:13:52,376 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2019-08-31 05:13:52,377 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,449 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,451 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,451 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:112, output treesize:82 [2019-08-31 05:13:52,472 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 65 for LOIs [2019-08-31 05:13:52,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,703 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 [2019-08-31 05:13:52,704 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,711 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,712 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,712 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-08-31 05:13:52,721 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 18 treesize of output 14 [2019-08-31 05:13:52,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,727 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,728 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,728 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:22, output treesize:3 [2019-08-31 05:13:52,734 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 18 treesize of output 14 [2019-08-31 05:13:52,734 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,741 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,742 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,742 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2019-08-31 05:13:52,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,755 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 [2019-08-31 05:13:52,755 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,761 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 05:13:52,761 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 05:13:52,762 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2019-08-31 05:13:52,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 05:13:52,775 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-08-31 05:13:52,777 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 05:13:52,777 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 05:13:52,779 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2019-08-31 05:13:52,799 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 05:13:52,799 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 05:13:52,801 INFO L168 Benchmark]: Toolchain (without parser) took 2274.33 ms. Allocated memory was 133.7 MB in the beginning and 225.4 MB in the end (delta: 91.8 MB). Free memory was 89.9 MB in the beginning and 180.2 MB in the end (delta: -90.2 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-31 05:13:52,807 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 05:13:52,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.20 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.7 MB in the beginning and 174.5 MB in the end (delta: -84.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-08-31 05:13:52,809 INFO L168 Benchmark]: Boogie Preprocessor took 53.49 ms. Allocated memory is still 199.8 MB. Free memory was 174.5 MB in the beginning and 172.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-08-31 05:13:52,809 INFO L168 Benchmark]: RCFGBuilder took 668.76 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 145.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-08-31 05:13:52,810 INFO L168 Benchmark]: Sifa took 1118.04 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 145.4 MB in the beginning and 180.2 MB in the end (delta: -34.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 05:13:52,823 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 107.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 430.20 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 89.7 MB in the beginning and 174.5 MB in the end (delta: -84.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.49 ms. Allocated memory is still 199.8 MB. Free memory was 174.5 MB in the beginning and 172.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 668.76 ms. Allocated memory is still 199.8 MB. Free memory was 172.1 MB in the beginning and 145.4 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Sifa took 1118.04 ms. Allocated memory was 199.8 MB in the beginning and 225.4 MB in the end (delta: 25.7 MB). Free memory was 145.4 MB in the beginning and 180.2 MB in the end (delta: -34.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 1.0s OVERALL_TIME, 3 ICFG_INTERPRETER_ENTERED_PROCEDURES, 69 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 51 TOOLS_POST_APPLICATIONS, 0.8s TOOLS_POST_TIME, 7 TOOLS_POST_CALL_APPLICATIONS, 0.1s TOOLS_POST_CALL_TIME, 5 TOOLS_POST_RETURN_APPLICATIONS, 0.0s TOOLS_POST_RETURN_TIME, 0.8s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 75 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 22 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 0 DOMAIN_ALPHA_APPLICATIONS, 0.0s DOMAIN_ALPHA_TIME, 1 DOMAIN_WIDEN_APPLICATIONS, 0.0s DOMAIN_WIDEN_TIME, 6 DOMAIN_ISSUBSETEQ_APPLICATIONS, 0.0s DOMAIN_ISSUBSETEQ_TIME, 10 DOMAIN_ISBOTTOM_APPLICATIONS, 0.0s DOMAIN_ISBOTTOM_TIME, 5 LOOP_SUMMARIZER_APPLICATIONS, 5 LOOP_SUMMARIZER_CACHE_MISSES, 0.2s LOOP_SUMMARIZER_OVERALL_TIME, 0.2s LOOP_SUMMARIZER_NEW_COMPUTATION_TIME, 6 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 5 CALL_SUMMARIZER_APPLICATIONS, 2 CALL_SUMMARIZER_CACHE_MISSES, 0.7s CALL_SUMMARIZER_OVERALL_TIME, 0.7s CALL_SUMMARIZER_NEW_COMPUTATION_TIME, 0.0s PROCEDURE_GRAPH_BUILDER_TIME, 0.0s PATH_EXPR_TIME, 0.0s REGEX_TO_DAG_TIME, 0.0s DAG_COMPRESSION_TIME, 117 DAG_COMPRESSION_PROCESSED_NODES, 68 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 5]: 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 161#(and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (<= 0 __VERIFIER_assert_~cond) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...