/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 05:34:12,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 05:34:12,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 05:34:12,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 05:34:12,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 05:34:12,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 05:34:12,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 05:34:12,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 05:34:12,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 05:34:12,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 05:34:12,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 05:34:12,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 05:34:12,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 05:34:12,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 05:34:12,543 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 05:34:12,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 05:34:12,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 05:34:12,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 05:34:12,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 05:34:12,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 05:34:12,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 05:34:12,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 05:34:12,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 05:34:12,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 05:34:12,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 05:34:12,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 05:34:12,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 05:34:12,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 05:34:12,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 05:34:12,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 05:34:12,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 05:34:12,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 05:34:12,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 05:34:12,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 05:34:12,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 05:34:12,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 05:34:12,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 05:34:12,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 05:34:12,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 05:34:12,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 05:34:12,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 05:34:12,565 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 [2019-11-07 05:34:12,578 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 05:34:12,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 05:34:12,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 05:34:12,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 05:34:12,580 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 05:34:12,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 05:34:12,581 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 05:34:12,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 05:34:12,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 05:34:12,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 05:34:12,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 05:34:12,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 05:34:12,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 05:34:12,582 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 05:34:12,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 05:34:12,582 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 05:34:12,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 05:34:12,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 05:34:12,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 05:34:12,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 05:34:12,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 05:34:12,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 05:34:12,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 05:34:12,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 05:34:12,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 05:34:12,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 05:34:12,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 05:34:12,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 05:34:12,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-11-07 05:34:12,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 05:34:12,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 05:34:12,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 05:34:12,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 05:34:12,881 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 05:34:12,882 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2019-11-07 05:34:12,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd82412d/167815e3a65144168b2f431da45df484/FLAGa4bb2f8e9 [2019-11-07 05:34:13,599 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 05:34:13,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label50.c [2019-11-07 05:34:13,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd82412d/167815e3a65144168b2f431da45df484/FLAGa4bb2f8e9 [2019-11-07 05:34:13,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bd82412d/167815e3a65144168b2f431da45df484 [2019-11-07 05:34:13,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 05:34:13,789 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 05:34:13,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 05:34:13,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 05:34:13,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 05:34:13,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:13" (1/1) ... [2019-11-07 05:34:13,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4170af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:13, skipping insertion in model container [2019-11-07 05:34:13,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:13" (1/1) ... [2019-11-07 05:34:13,806 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 05:34:13,884 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 05:34:14,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 05:34:14,691 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 05:34:15,028 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 05:34:15,047 INFO L192 MainTranslator]: Completed translation [2019-11-07 05:34:15,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15 WrapperNode [2019-11-07 05:34:15,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 05:34:15,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 05:34:15,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 05:34:15,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 05:34:15,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (1/1) ... [2019-11-07 05:34:15,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 05:34:15,264 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 05:34:15,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 05:34:15,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 05:34:15,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:15" (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 [2019-11-07 05:34:15,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 05:34:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 05:34:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 05:34:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-07 05:34:15,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 05:34:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 05:34:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-07 05:34:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 05:34:15,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 05:34:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 05:34:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 05:34:15,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 05:34:15,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 05:34:17,701 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 05:34:17,702 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 05:34:17,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:34:17 BoogieIcfgContainer [2019-11-07 05:34:17,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 05:34:17,709 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 05:34:17,709 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 05:34:17,709 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 05:34:17,710 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:34:17" (1/1) ... [2019-11-07 05:34:17,787 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-11-07 05:34:23,012 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.