java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:44:31,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:44:31,175 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:44:31,190 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:44:31,190 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:44:31,191 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:44:31,193 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:44:31,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:44:31,196 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:44:31,197 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:44:31,198 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:44:31,198 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:44:31,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:44:31,200 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:44:31,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:44:31,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:44:31,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:44:31,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:44:31,207 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:44:31,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:44:31,210 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:44:31,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:44:31,218 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:44:31,219 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:44:31,219 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:44:31,220 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:44:31,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:44:31,224 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:44:31,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:44:31,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:44:31,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:44:31,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:44:31,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:44:31,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:44:31,230 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:44:31,231 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:44:31,231 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 18:44:31,260 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:44:31,260 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:44:31,261 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:44:31,262 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:44:31,262 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:44:31,262 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:44:31,262 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:44:31,262 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:44:31,263 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:44:31,263 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:44:31,263 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:44:31,263 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:44:31,263 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:44:31,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:44:31,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:44:31,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:44:31,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:44:31,265 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:44:31,265 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:44:31,265 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:44:31,265 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:44:31,266 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:44:31,266 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:44:31,266 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:44:31,266 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:44:31,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:44:31,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:44:31,267 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:44:31,267 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:44:31,267 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:44:31,267 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:44:31,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:44:31,268 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:44:31,268 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:44:31,268 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:44:31,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:44:31,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:44:31,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:44:31,330 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:44:31,330 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:44:31,331 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-11-12 18:44:31,388 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd610f470/da7d5605a6fe466c8d43548f4af6a2dd/FLAG79571d67b [2018-11-12 18:44:32,180 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:44:32,182 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label02_true-unreach-call.c [2018-11-12 18:44:32,218 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd610f470/da7d5605a6fe466c8d43548f4af6a2dd/FLAG79571d67b [2018-11-12 18:44:32,238 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd610f470/da7d5605a6fe466c8d43548f4af6a2dd [2018-11-12 18:44:32,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:44:32,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:44:32,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:44:32,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:44:32,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:44:32,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:32" (1/1) ... [2018-11-12 18:44:32,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6a182c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:32, skipping insertion in model container [2018-11-12 18:44:32,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:44:32" (1/1) ... [2018-11-12 18:44:32,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:44:32,444 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:44:33,674 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:44:33,678 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:44:34,331 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:44:34,367 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:44:34,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34 WrapperNode [2018-11-12 18:44:34,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:44:34,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:44:34,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:44:34,369 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:44:34,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:44:34,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:44:34,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:44:34,675 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:44:34,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (1/1) ... [2018-11-12 18:44:34,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:44:34,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:44:34,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:44:34,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:44:34,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (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 [2018-11-12 18:44:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:44:35,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:44:35,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:44:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:44:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:44:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:44:35,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:44:35,007 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:44:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:44:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:44:35,008 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:44:35,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:44:35,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:44:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:44:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:44:44,932 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:44:44,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:44 BoogieIcfgContainer [2018-11-12 18:44:44,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:44:44,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:44:44,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:44:44,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:44:44,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:44:32" (1/3) ... [2018-11-12 18:44:44,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab3c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:44, skipping insertion in model container [2018-11-12 18:44:44,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:44:34" (2/3) ... [2018-11-12 18:44:44,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ab3c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:44:44, skipping insertion in model container [2018-11-12 18:44:44,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:44:44" (3/3) ... [2018-11-12 18:44:44,941 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label02_true-unreach-call.c [2018-11-12 18:44:44,951 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:44:44,961 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:44:44,978 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:44:45,023 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:44:45,023 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:44:45,023 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:44:45,023 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:44:45,023 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:44:45,024 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:44:45,024 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:44:45,024 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:44:45,070 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-12 18:44:45,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-11-12 18:44:45,080 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:44:45,081 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:44:45,084 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:44:45,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:44:45,089 INFO L82 PathProgramCache]: Analyzing trace with hash 395578323, now seen corresponding path program 1 times [2018-11-12 18:44:45,092 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:44:45,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:45,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:44:45,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:45,144 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:44:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:44:45,563 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:44:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:44:45,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:44:45,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:44:45,689 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:44:45,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:44:45,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:44:45,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:44:45,714 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-12 18:44:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:44:53,442 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-12 18:44:53,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:44:53,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-11-12 18:44:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:44:53,486 INFO L225 Difference]: With dead ends: 2446 [2018-11-12 18:44:53,486 INFO L226 Difference]: Without dead ends: 1604 [2018-11-12 18:44:53,500 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:44:53,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-12 18:44:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-12 18:44:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-12 18:44:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2861 transitions. [2018-11-12 18:44:53,694 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2861 transitions. Word has length 69 [2018-11-12 18:44:53,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:44:53,695 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2861 transitions. [2018-11-12 18:44:53,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:44:53,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2861 transitions. [2018-11-12 18:44:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-12 18:44:53,703 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:44:53,704 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:44:53,704 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:44:53,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:44:53,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1284545392, now seen corresponding path program 1 times [2018-11-12 18:44:53,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:44:53,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:53,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:44:53,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:44:53,707 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:44:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:44:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-12 18:44:54,122 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:44:54,122 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:44:54,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-11-12 18:44:54,126 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2319], [2321], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:44:54,176 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:44:54,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:44:55,013 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:44:55,015 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Performed 1606 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1606 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:44:55,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:44:55,060 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:44:55,692 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 76.38% of their original sizes. [2018-11-12 18:44:55,692 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:44:56,596 INFO L415 sIntCurrentIteration]: We unified 144 AI predicates to 144 [2018-11-12 18:44:56,596 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:44:56,597 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:44:56,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2018-11-12 18:44:56,598 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:44:56,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 18:44:56,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 18:44:56,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 18:44:56,600 INFO L87 Difference]: Start difference. First operand 1604 states and 2861 transitions. Second operand 11 states. [2018-11-12 18:45:06,972 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:46:01,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:46:01,220 INFO L93 Difference]: Finished difference Result 5512 states and 10057 transitions. [2018-11-12 18:46:01,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 18:46:01,220 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 145 [2018-11-12 18:46:01,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:46:01,241 INFO L225 Difference]: With dead ends: 5512 [2018-11-12 18:46:01,241 INFO L226 Difference]: Without dead ends: 3914 [2018-11-12 18:46:01,248 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-12 18:46:01,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2018-11-12 18:46:01,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 3911. [2018-11-12 18:46:01,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2018-11-12 18:46:01,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 5199 transitions. [2018-11-12 18:46:01,359 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 5199 transitions. Word has length 145 [2018-11-12 18:46:01,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:46:01,360 INFO L480 AbstractCegarLoop]: Abstraction has 3911 states and 5199 transitions. [2018-11-12 18:46:01,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 18:46:01,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 5199 transitions. [2018-11-12 18:46:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-11-12 18:46:01,367 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:46:01,368 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:46:01,368 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:46:01,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:46:01,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1678798471, now seen corresponding path program 1 times [2018-11-12 18:46:01,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:46:01,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:01,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:46:01,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:01,371 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:46:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:46:01,763 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-11-12 18:46:01,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:46:01,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 18:46:01,763 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:46:01,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 18:46:01,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 18:46:01,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:46:01,765 INFO L87 Difference]: Start difference. First operand 3911 states and 5199 transitions. Second operand 3 states. [2018-11-12 18:46:07,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:46:07,123 INFO L93 Difference]: Finished difference Result 7045 states and 10900 transitions. [2018-11-12 18:46:07,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 18:46:07,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-11-12 18:46:07,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:46:07,154 INFO L225 Difference]: With dead ends: 7045 [2018-11-12 18:46:07,154 INFO L226 Difference]: Without dead ends: 5447 [2018-11-12 18:46:07,163 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 18:46:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2018-11-12 18:46:07,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 5447. [2018-11-12 18:46:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5447 states. [2018-11-12 18:46:07,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 7191 transitions. [2018-11-12 18:46:07,316 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 7191 transitions. Word has length 291 [2018-11-12 18:46:07,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:46:07,317 INFO L480 AbstractCegarLoop]: Abstraction has 5447 states and 7191 transitions. [2018-11-12 18:46:07,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 18:46:07,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 7191 transitions. [2018-11-12 18:46:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-11-12 18:46:07,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:46:07,328 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:46:07,328 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:46:07,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:46:07,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1203660536, now seen corresponding path program 1 times [2018-11-12 18:46:07,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:46:07,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:07,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:46:07,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:46:07,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:46:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:46:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:46:07,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:46:07,931 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:46:07,931 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 293 with the following transitions: [2018-11-12 18:46:07,932 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2319], [2321], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:46:07,939 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:46:07,939 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:46:08,172 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:46:08,409 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:46:08,410 INFO L272 AbstractInterpreter]: Visited 154 different actions 304 times. Merged at 5 different actions 7 times. Never widened. Performed 5544 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5544 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:46:08,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:46:08,447 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:46:09,020 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 78.75% of their original sizes. [2018-11-12 18:46:09,021 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:46:09,698 INFO L415 sIntCurrentIteration]: We unified 291 AI predicates to 291 [2018-11-12 18:46:09,698 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:46:09,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:46:09,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-12 18:46:09,698 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:46:09,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 18:46:09,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 18:46:09,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-12 18:46:09,700 INFO L87 Difference]: Start difference. First operand 5447 states and 7191 transitions. Second operand 20 states. Received shutdown request... [2018-11-12 18:48:01,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 18:48:01,423 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:48:01,428 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:48:01,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:48:01 BoogieIcfgContainer [2018-11-12 18:48:01,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:48:01,429 INFO L168 Benchmark]: Toolchain (without parser) took 209178.49 ms. Allocated memory was 1.5 GB in the beginning and 7.4 GB in the end (delta: 5.8 GB). Free memory was 1.4 GB in the beginning and 4.8 GB in the end (delta: -3.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,430 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 18:48:01,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2114.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 305.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,433 INFO L168 Benchmark]: Boogie Preprocessor took 258.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,434 INFO L168 Benchmark]: RCFGBuilder took 9999.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 160.4 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -174.6 MB). Peak memory consumption was 666.4 MB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,435 INFO L168 Benchmark]: TraceAbstraction took 196494.67 ms. Allocated memory was 2.5 GB in the beginning and 7.4 GB in the end (delta: 4.9 GB). Free memory was 2.4 GB in the beginning and 4.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 18:48:01,442 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2114.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 305.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 782.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 258.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9999.12 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 160.4 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -174.6 MB). Peak memory consumption was 666.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 196494.67 ms. Allocated memory was 2.5 GB in the beginning and 7.4 GB in the end (delta: 4.9 GB). Free memory was 2.4 GB in the beginning and 4.8 GB in the end (delta: -2.4 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was constructing difference of abstraction (5447states) and FLOYD_HOARE automaton (currently 20 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (7919 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 196.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 189.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2663 SDtfs, 8116 SDslu, 1136 SDs, 0 SdLazy, 26038 SolverSat, 3447 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 88.0s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 466 GetRequests, 414 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5447occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.4s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.997494328593279 AbsIntWeakeningRatio, 0.1103448275862069 AbsIntAvgWeakeningVarsNumRemoved, 21.806896551724137 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 797 NumberOfCodeBlocks, 797 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 793 ConstructedInterpolants, 0 QuantifiedInterpolants, 483447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 403/463 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown