/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:59:58,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:59:58,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:59:58,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-23 23:59:58,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:59:58,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:59:58,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:59:58,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:59:58,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:59:58,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:59:58,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:59:58,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:59:58,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:59:58,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:59:58,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:59:58,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:59:58,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:59:58,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:59:58,951 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:59:58,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:59:58,953 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:59:58,968 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:59:58,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:59:58,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:59:58,970 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:59:58,970 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:59:58,970 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:59:58,970 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:59:58,970 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:59:58,971 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:59:58,971 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:59:58,971 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:59:58,971 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:59:58,971 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:59:58,971 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:59:58,972 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:59:58,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:59:58,972 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:59:58,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:59:58,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:59:58,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:59:58,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:59:58,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:59:58,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:59:58,974 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:59:58,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:59:58,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:59:58,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:59:58,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:59:58,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:59:58,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:59:58,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:59:58,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:59:58,976 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:59:59,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:59:59,257 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:59:59,260 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:59:59,262 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:59:59,262 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:59:59,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label49.c [2019-11-23 23:59:59,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b9e0d8/62588be04b0c4333878bd6267765f3d9/FLAGebec8db08 [2019-11-23 23:59:59,965 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:59:59,966 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label49.c [2019-11-23 23:59:59,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b9e0d8/62588be04b0c4333878bd6267765f3d9/FLAGebec8db08 [2019-11-24 00:00:00,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b9e0d8/62588be04b0c4333878bd6267765f3d9 [2019-11-24 00:00:00,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 00:00:00,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 00:00:00,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 00:00:00,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 00:00:00,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 00:00:00,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:00:00" (1/1) ... [2019-11-24 00:00:00,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca29688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:00, skipping insertion in model container [2019-11-24 00:00:00,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:00:00" (1/1) ... [2019-11-24 00:00:00,233 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 00:00:00,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 00:00:01,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:00:01,019 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 00:00:01,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 00:00:01,246 INFO L208 MainTranslator]: Completed translation [2019-11-24 00:00:01,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01 WrapperNode [2019-11-24 00:00:01,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 00:00:01,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 00:00:01,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 00:00:01,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 00:00:01,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 00:00:01,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 00:00:01,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 00:00:01,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 00:00:01,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (1/1) ... [2019-11-24 00:00:01,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 00:00:01,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 00:00:01,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 00:00:01,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 00:00:01,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (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 [2019-11-24 00:00:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 00:00:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 00:01:46,230 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 00:01:46,230 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 00:01:46,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:46 BoogieIcfgContainer [2019-11-24 00:01:46,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 00:01:46,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 00:01:46,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 00:01:46,236 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 00:01:46,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:00:00" (1/3) ... [2019-11-24 00:01:46,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c54035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:46, skipping insertion in model container [2019-11-24 00:01:46,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:00:01" (2/3) ... [2019-11-24 00:01:46,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c54035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:46, skipping insertion in model container [2019-11-24 00:01:46,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:46" (3/3) ... [2019-11-24 00:01:46,241 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem11_label49.c [2019-11-24 00:01:46,251 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 00:01:46,259 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 00:01:46,269 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 00:01:46,294 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 00:01:46,294 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 00:01:46,295 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 00:01:46,295 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 00:01:46,295 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 00:01:46,295 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 00:01:46,295 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 00:01:46,295 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========