/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/Problem04_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 05:11:00,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 05:11:00,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 05:11:00,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 05:11:00,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 05:11:00,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 05:11:00,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 05:11:00,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 05:11:00,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 05:11:00,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 05:11:00,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 05:11:00,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 05:11:00,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 05:11:00,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 05:11:00,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 05:11:00,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 05:11:00,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 05:11:00,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 05:11:00,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 05:11:00,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 05:11:00,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 05:11:00,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 05:11:00,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 05:11:00,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 05:11:00,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 05:11:00,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 05:11:00,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 05:11:00,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 05:11:00,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 05:11:00,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 05:11:00,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 05:11:00,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 05:11:00,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 05:11:00,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 05:11:00,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 05:11:00,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 05:11:00,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 05:11:00,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 05:11:00,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 05:11:00,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 05:11:00,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 05:11:00,163 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 05:11:00,178 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 05:11:00,178 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 05:11:00,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 05:11:00,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 05:11:00,179 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 05:11:00,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 05:11:00,180 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 05:11:00,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 05:11:00,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 05:11:00,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 05:11:00,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 05:11:00,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 05:11:00,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 05:11:00,181 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 05:11:00,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 05:11:00,182 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 05:11:00,182 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 05:11:00,182 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 05:11:00,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 05:11:00,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 05:11:00,183 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 05:11:00,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 05:11:00,183 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 05:11:00,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 05:11:00,184 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 05:11:00,184 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 05:11:00,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 05:11:00,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 05:11:00,185 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 05:11:00,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 05:11:00,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 05:11:00,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 05:11:00,463 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 05:11:00,463 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 05:11:00,464 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label20.c [2019-11-07 05:11:00,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3f4e214/35a008dd05fc415a889cc33998d9df4c/FLAG90b07da77 [2019-11-07 05:11:01,292 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 05:11:01,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label20.c [2019-11-07 05:11:01,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3f4e214/35a008dd05fc415a889cc33998d9df4c/FLAG90b07da77 [2019-11-07 05:11:01,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de3f4e214/35a008dd05fc415a889cc33998d9df4c [2019-11-07 05:11:01,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 05:11:01,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 05:11:01,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 05:11:01,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 05:11:01,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 05:11:01,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:01" (1/1) ... [2019-11-07 05:11:01,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af577bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:01, skipping insertion in model container [2019-11-07 05:11:01,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:11:01" (1/1) ... [2019-11-07 05:11:01,383 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 05:11:01,536 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 05:11:03,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 05:11:03,071 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 05:11:03,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 05:11:03,822 INFO L192 MainTranslator]: Completed translation [2019-11-07 05:11:03,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03 WrapperNode [2019-11-07 05:11:03,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 05:11:03,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 05:11:03,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 05:11:03,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 05:11:03,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:03,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:03,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:03,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:04,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:04,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:04,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (1/1) ... [2019-11-07 05:11:04,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 05:11:04,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 05:11:04,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 05:11:04,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 05:11:04,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:11:03" (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 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-11-07 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-11-07 05:11:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-11-07 05:11:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 05:11:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 05:11:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-11-07 05:11:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-11-07 05:11:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-11-07 05:11:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 05:11:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 05:11:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 05:11:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 05:11:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 05:11:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 05:11:09,323 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 05:11:09,323 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 05:11:09,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:11:09 BoogieIcfgContainer [2019-11-07 05:11:09,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 05:11:09,328 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-11-07 05:11:09,328 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-11-07 05:11:09,328 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-11-07 05:11:09,329 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:11:09" (1/1) ... [2019-11-07 05:11:09,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)