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 --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 17:19:58,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 17:19:58,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 17:19:58,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 17:19:58,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 17:19:58,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 17:19:58,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 17:19:58,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 17:19:58,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 17:19:58,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 17:19:58,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 17:19:58,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 17:19:58,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 17:19:58,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 17:19:58,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 17:19:58,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 17:19:58,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 17:19:58,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 17:19:58,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 17:19:58,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 17:19:58,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 17:19:58,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 17:19:58,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 17:19:58,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 17:19:58,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 17:19:58,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 17:19:58,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 17:19:58,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 17:19:58,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 17:19:58,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 17:19:58,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 17:19:58,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 17:19:58,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 17:19:58,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 17:19:58,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 17:19:58,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 17:19:58,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 17:19:58,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 17:19:58,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 17:19:58,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 17:19:58,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 17:19:58,587 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 [2019-09-20 17:19:58,602 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 17:19:58,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 17:19:58,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 17:19:58,604 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 17:19:58,604 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 17:19:58,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 17:19:58,604 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 17:19:58,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 17:19:58,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 17:19:58,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 17:19:58,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 17:19:58,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 17:19:58,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 17:19:58,606 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 17:19:58,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 17:19:58,606 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 17:19:58,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 17:19:58,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 17:19:58,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 17:19:58,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 17:19:58,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 17:19:58,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 17:19:58,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 17:19:58,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 17:19:58,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 17:19:58,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 17:19:58,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 17:19:58,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 17:19:58,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-20 17:19:58,640 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 17:19:58,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 17:19:58,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 17:19:58,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 17:19:58,658 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 17:19:58,659 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-09-20 17:19:58,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1605dc8d/bceff3faddbe4369883a6d4f9cb36338/FLAGf3499305b [2019-09-20 17:19:59,134 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 17:19:59,135 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/nested_1-1.c [2019-09-20 17:19:59,141 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1605dc8d/bceff3faddbe4369883a6d4f9cb36338/FLAGf3499305b [2019-09-20 17:19:59,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1605dc8d/bceff3faddbe4369883a6d4f9cb36338 [2019-09-20 17:19:59,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 17:19:59,559 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 17:19:59,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 17:19:59,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 17:19:59,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 17:19:59,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a78415a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59, skipping insertion in model container [2019-09-20 17:19:59,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,576 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 17:19:59,591 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 17:19:59,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:19:59,762 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 17:19:59,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 17:19:59,792 INFO L192 MainTranslator]: Completed translation [2019-09-20 17:19:59,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59 WrapperNode [2019-09-20 17:19:59,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 17:19:59,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 17:19:59,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 17:19:59,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 17:19:59,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (1/1) ... [2019-09-20 17:19:59,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 17:19:59,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 17:19:59,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 17:19:59,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 17:19:59,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 05:19:59" (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 [2019-09-20 17:19:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 17:19:59,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 17:19:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 17:19:59,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 17:19:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 17:19:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 17:19:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 17:19:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 17:19:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 17:20:00,185 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 17:20:00,185 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 17:20:00,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:20:00 BoogieIcfgContainer [2019-09-20 17:20:00,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 17:20:00,188 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 17:20:00,188 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 17:20:00,188 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 17:20:00,189 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 05:20:00" (1/1) ... [2019-09-20 17:20:00,190 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=CompoundDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-20 17:20:00,212 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 17:20:00,212 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 17:20:00,219 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 17:20:00,227 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 17:20:00,229 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 17:20:00,290 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-09-20 17:20:03,592 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 15 [2019-09-20 17:20:04,107 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 17 [2019-09-20 17:20:05,275 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2019-09-20 17:20:06,263 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 26 [2019-09-20 17:20:07,705 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2019-09-20 17:20:15,248 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 28 [2019-09-20 17:20:15,781 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2019-09-20 17:20:18,010 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2019-09-20 17:20:18,597 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2019-09-20 17:20:19,281 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2019-09-20 17:20:22,851 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2019-09-20 17:20:27,172 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2019-09-20 17:20:30,380 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2019-09-20 17:20:41,784 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2019-09-20 17:20:44,093 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 17