java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:36:47,177 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:36:47,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:36:47,191 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:36:47,192 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:36:47,193 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:36:47,194 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:36:47,196 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:36:47,197 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:36:47,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:36:47,199 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:36:47,199 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:36:47,200 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:36:47,201 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:36:47,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:36:47,203 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:36:47,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:36:47,206 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:36:47,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:36:47,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:36:47,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:36:47,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:36:47,214 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:36:47,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:36:47,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:36:47,216 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:36:47,217 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:36:47,218 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:36:47,218 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:36:47,219 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:36:47,220 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:36:47,220 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:36:47,221 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:36:47,221 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:36:47,222 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:36:47,223 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:36:47,223 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:36:47,240 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:36:47,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:36:47,241 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:36:47,241 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:36:47,242 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:36:47,242 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:36:47,242 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:36:47,242 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:36:47,243 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:36:47,243 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:36:47,243 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:36:47,243 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:36:47,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:36:47,244 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:36:47,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:36:47,245 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:36:47,245 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:36:47,245 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:36:47,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:36:47,245 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:36:47,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:36:47,247 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:36:47,248 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:36:47,248 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:36:47,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:36:47,248 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:36:47,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:36:47,249 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:36:47,250 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:36:47,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:36:47,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:36:47,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:36:47,324 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:36:47,325 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:36:47,325 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c [2018-10-24 18:36:47,393 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac3bc9719/c02ffa5310e648eba2d6c4978cb72781/FLAG62e6aa7d1 [2018-10-24 18:36:48,079 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:36:48,083 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label09_false-unreach-call.c [2018-10-24 18:36:48,105 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac3bc9719/c02ffa5310e648eba2d6c4978cb72781/FLAG62e6aa7d1 [2018-10-24 18:36:48,120 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac3bc9719/c02ffa5310e648eba2d6c4978cb72781 [2018-10-24 18:36:48,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:36:48,132 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:36:48,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:48,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:36:48,141 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:36:48,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:48" (1/1) ... [2018-10-24 18:36:48,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d0c9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:48, skipping insertion in model container [2018-10-24 18:36:48,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:36:48" (1/1) ... [2018-10-24 18:36:48,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:36:48,261 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:36:49,098 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:49,102 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:36:49,423 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:36:49,446 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:36:49,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49 WrapperNode [2018-10-24 18:36:49,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:36:49,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:49,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:36:49,448 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:36:49,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:36:49,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:36:49,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:36:49,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:36:49,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:49,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... [2018-10-24 18:36:50,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:36:50,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:36:50,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:36:50,036 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:36:50,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:36:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:36:50,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:36:50,109 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:36:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:36:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:36:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:36:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:36:50,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:36:50,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:36:50,111 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:36:56,754 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:36:56,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:56 BoogieIcfgContainer [2018-10-24 18:36:56,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:36:56,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:36:56,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:36:56,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:36:56,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:36:48" (1/3) ... [2018-10-24 18:36:56,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c358a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:56, skipping insertion in model container [2018-10-24 18:36:56,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:36:49" (2/3) ... [2018-10-24 18:36:56,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c358a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:36:56, skipping insertion in model container [2018-10-24 18:36:56,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:36:56" (3/3) ... [2018-10-24 18:36:56,763 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label09_false-unreach-call.c [2018-10-24 18:36:56,773 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:36:56,783 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:36:56,800 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:36:56,841 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:36:56,841 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:36:56,841 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:36:56,841 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:36:56,842 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:36:56,842 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:36:56,842 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:36:56,842 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:36:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 18:36:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 18:36:56,882 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:56,883 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:36:56,885 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:56,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:56,892 INFO L82 PathProgramCache]: Analyzing trace with hash -363304508, now seen corresponding path program 1 times [2018-10-24 18:36:56,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:56,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:56,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:56,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:56,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:57,301 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 18:36:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:36:57,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:36:57,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:36:57,309 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:36:57,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:36:57,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:36:57,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:36:57,336 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 18:37:06,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:06,291 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-10-24 18:37:06,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:37:06,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-24 18:37:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:06,320 INFO L225 Difference]: With dead ends: 1514 [2018-10-24 18:37:06,321 INFO L226 Difference]: Without dead ends: 1070 [2018-10-24 18:37:06,336 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:37:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-10-24 18:37:06,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-10-24 18:37:06,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-24 18:37:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-10-24 18:37:06,460 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 14 [2018-10-24 18:37:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:06,461 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-10-24 18:37:06,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:37:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-10-24 18:37:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-10-24 18:37:06,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:06,469 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:37:06,469 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:06,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1330789809, now seen corresponding path program 1 times [2018-10-24 18:37:06,470 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:06,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:06,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:06,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:06,472 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:37:06,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:37:06,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:37:06,736 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:37:06,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:37:06,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:37:06,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:37:06,739 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 3 states. [2018-10-24 18:37:11,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:37:11,061 INFO L93 Difference]: Finished difference Result 3059 states and 4890 transitions. [2018-10-24 18:37:11,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:37:11,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2018-10-24 18:37:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:37:11,080 INFO L225 Difference]: With dead ends: 3059 [2018-10-24 18:37:11,081 INFO L226 Difference]: Without dead ends: 1997 [2018-10-24 18:37:11,088 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:37:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-24 18:37:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1995. [2018-10-24 18:37:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1995 states. [2018-10-24 18:37:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1995 states to 1995 states and 2748 transitions. [2018-10-24 18:37:11,169 INFO L78 Accepts]: Start accepts. Automaton has 1995 states and 2748 transitions. Word has length 84 [2018-10-24 18:37:11,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:37:11,170 INFO L481 AbstractCegarLoop]: Abstraction has 1995 states and 2748 transitions. [2018-10-24 18:37:11,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:37:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1995 states and 2748 transitions. [2018-10-24 18:37:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-24 18:37:11,180 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:37:11,180 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 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] [2018-10-24 18:37:11,180 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:37:11,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:11,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1184390517, now seen corresponding path program 1 times [2018-10-24 18:37:11,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:37:11,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:11,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:37:11,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:37:11,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:37:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:37:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 15 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 18:37:12,037 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:37:12,037 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:37:12,038 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-10-24 18:37:12,041 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [85], [87], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 18:37:12,113 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:37:12,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:37:13,721 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:37:24,648 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:37:24,650 INFO L272 AbstractInterpreter]: Visited 104 different actions 299 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:37:24,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:37:24,662 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:37:27,963 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 78% of their original sizes. [2018-10-24 18:37:27,964 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:38:44,483 INFO L413 sIntCurrentIteration]: We have 193 unified AI predicates [2018-10-24 18:38:44,483 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:38:44,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:38:44,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-10-24 18:38:44,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:38:44,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-24 18:38:44,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-24 18:38:44,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-10-24 18:38:44,487 INFO L87 Difference]: Start difference. First operand 1995 states and 2748 transitions. Second operand 19 states. Received shutdown request... [2018-10-24 18:40:58,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-24 18:40:58,099 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:40:58,104 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:40:58,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:40:58 BoogieIcfgContainer [2018-10-24 18:40:58,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:40:58,106 INFO L168 Benchmark]: Toolchain (without parser) took 249974.35 ms. Allocated memory was 1.6 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -976.2 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,107 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:40:58,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1313.68 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 390.53 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,109 INFO L168 Benchmark]: Boogie Preprocessor took 196.43 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,110 INFO L168 Benchmark]: RCFGBuilder took 6719.23 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 316.4 MB). Peak memory consumption was 316.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,111 INFO L168 Benchmark]: TraceAbstraction took 241349.13 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -522.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-24 18:40:58,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1313.68 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 390.53 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -889.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.43 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6719.23 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 316.4 MB). Peak memory consumption was 316.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241349.13 ms. Allocated memory was 2.3 GB in the beginning and 4.3 GB in the end (delta: 2.0 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -522.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 28). Cancelled while BasicCegarLoop was constructing difference of abstraction (1995states) and FLOYD_HOARE automaton (currently 24 states, 19 states before enhancement),while ReachableStatesComputation was computing reachable states (964 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 241.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 146.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 811 SDtfs, 3380 SDslu, 312 SDs, 0 SdLazy, 4547 SolverSat, 895 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 213 GetRequests, 94 SyntacticMatches, 89 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 81.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1995occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9938893895021403 AbsIntWeakeningRatio, 0.13471502590673576 AbsIntAvgWeakeningVarsNumRemoved, 91.99481865284974 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 209817 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 28/105 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown