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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label50_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:33:32,710 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:33:32,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:33:32,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:33:32,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:33:32,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:33:32,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:33:32,731 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:33:32,733 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:33:32,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:33:32,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:33:32,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:33:32,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:33:32,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:33:32,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:33:32,739 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:33:32,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:33:32,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:33:32,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:33:32,745 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:33:32,746 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:33:32,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:33:32,750 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:33:32,750 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:33:32,750 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:33:32,751 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:33:32,752 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:33:32,753 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:33:32,754 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:33:32,755 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:33:32,755 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:33:32,756 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 23:33:32,758 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:33:32,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:33:32,783 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:33:32,784 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:33:32,784 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:33:32,785 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:33:32,785 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:33:32,785 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:33:32,785 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:33:32,786 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:33:32,786 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:33:32,786 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:33:32,786 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:33:32,786 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:33:32,787 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:33:32,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:33:32,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:33:32,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:33:32,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:33:32,788 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:33:32,789 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:33:32,789 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:33:32,789 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:33:32,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:33:32,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:33:32,791 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:33:32,791 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:33:32,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:33:32,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:33:32,792 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:33:32,792 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:33:32,792 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:33:32,793 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:33:32,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:33:32,793 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:33:32,793 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:33:32,793 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:33:32,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:33:32,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:33:32,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:33:32,890 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:33:32,890 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:33:32,891 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label50_false-unreach-call.c [2018-10-24 23:33:32,970 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6df978328/d1bc3b42884340449bb59cb7541c252d/FLAGb3cc3070d [2018-10-24 23:33:33,740 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:33:33,741 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label50_false-unreach-call.c [2018-10-24 23:33:33,770 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6df978328/d1bc3b42884340449bb59cb7541c252d/FLAGb3cc3070d [2018-10-24 23:33:33,791 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6df978328/d1bc3b42884340449bb59cb7541c252d [2018-10-24 23:33:33,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:33:33,808 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:33:33,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:33:33,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:33:33,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:33:33,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:33" (1/1) ... [2018-10-24 23:33:33,821 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65c12104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:33, skipping insertion in model container [2018-10-24 23:33:33,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:33:33" (1/1) ... [2018-10-24 23:33:33,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:33:34,000 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:33:35,281 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:33:35,286 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:33:35,872 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:33:35,907 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:33:35,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35 WrapperNode [2018-10-24 23:33:35,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:33:35,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:33:35,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:33:35,910 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:33:35,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:35,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:33:36,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:33:36,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:33:36,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:33:36,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (1/1) ... [2018-10-24 23:33:36,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:33:36,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:33:36,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:33:36,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:33:36,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (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 23:33:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:33:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:33:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 23:33:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 23:33:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 23:33:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 23:33:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:33:36,714 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:33:36,714 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:33:36,715 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:33:36,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:33:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:33:36,716 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:33:36,716 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:33:47,196 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:33:47,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:47 BoogieIcfgContainer [2018-10-24 23:33:47,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:33:47,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:33:47,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:33:47,202 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:33:47,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:33:33" (1/3) ... [2018-10-24 23:33:47,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3959712a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:47, skipping insertion in model container [2018-10-24 23:33:47,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:33:35" (2/3) ... [2018-10-24 23:33:47,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3959712a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:33:47, skipping insertion in model container [2018-10-24 23:33:47,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:33:47" (3/3) ... [2018-10-24 23:33:47,206 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label50_false-unreach-call.c [2018-10-24 23:33:47,215 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:33:47,224 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:33:47,242 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:33:47,290 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:33:47,290 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:33:47,290 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:33:47,290 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:33:47,290 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:33:47,291 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:33:47,291 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:33:47,291 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:33:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-24 23:33:47,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 23:33:47,339 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:33:47,340 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] [2018-10-24 23:33:47,342 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:33:47,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:33:47,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1732506723, now seen corresponding path program 1 times [2018-10-24 23:33:47,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:33:47,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:33:47,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:33:47,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:33:47,408 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:33:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:33:47,785 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:33:47,894 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 23:33:47,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:33:47,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:33:47,898 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:33:47,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:33:47,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:33:47,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:33:47,927 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-24 23:33:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:33:57,776 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-24 23:33:57,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:33:57,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-10-24 23:33:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:33:57,819 INFO L225 Difference]: With dead ends: 2446 [2018-10-24 23:33:57,819 INFO L226 Difference]: Without dead ends: 1604 [2018-10-24 23:33:57,836 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:33:57,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-24 23:33:58,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-24 23:33:58,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-24 23:33:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-10-24 23:33:58,040 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 25 [2018-10-24 23:33:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:33:58,041 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-10-24 23:33:58,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:33:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-10-24 23:33:58,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-24 23:33:58,047 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:33:58,047 INFO L375 BasicCegarLoop]: trace histogram [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, 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 23:33:58,048 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:33:58,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:33:58,048 INFO L82 PathProgramCache]: Analyzing trace with hash 149843156, now seen corresponding path program 1 times [2018-10-24 23:33:58,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:33:58,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:33:58,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:33:58,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:33:58,050 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:33:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:33:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:33:58,309 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:33:58,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:33:58,309 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:33:58,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:33:58,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:33:58,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:33:58,313 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-10-24 23:34:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:34:08,722 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-10-24 23:34:08,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:34:08,722 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2018-10-24 23:34:08,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:34:08,744 INFO L225 Difference]: With dead ends: 4873 [2018-10-24 23:34:08,744 INFO L226 Difference]: Without dead ends: 3275 [2018-10-24 23:34:08,750 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:34:08,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-10-24 23:34:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-10-24 23:34:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-10-24 23:34:08,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-10-24 23:34:08,869 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 95 [2018-10-24 23:34:08,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:34:08,870 INFO L481 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-10-24 23:34:08,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:34:08,870 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-10-24 23:34:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 23:34:08,874 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:34:08,875 INFO L375 BasicCegarLoop]: trace histogram [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, 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 23:34:08,875 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:34:08,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:34:08,875 INFO L82 PathProgramCache]: Analyzing trace with hash 757765696, now seen corresponding path program 1 times [2018-10-24 23:34:08,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:34:08,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:08,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:34:08,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:34:08,877 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:34:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:34:09,161 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:34:09,161 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:34:09,161 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:34:09,162 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2018-10-24 23:34:09,164 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1967], [1969], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-24 23:34:09,213 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:34:09,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:34:09,807 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:34:09,808 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:34:09,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:34:09,853 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:34:10,319 INFO L232 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 78.54% of their original sizes. [2018-10-24 23:34:10,319 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:34:10,963 INFO L413 sIntCurrentIteration]: We have 100 unified AI predicates [2018-10-24 23:34:10,963 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:34:10,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:34:10,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [7] total 19 [2018-10-24 23:34:10,965 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:34:10,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 23:34:10,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 23:34:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-24 23:34:10,966 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 14 states. [2018-10-24 23:36:55,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-24 23:36:55,901 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-24 23:36:55,908 INFO L168 Benchmark]: Toolchain (without parser) took 202103.10 ms. Allocated memory was 1.5 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 2.2 GB in the end (delta: -746.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,909 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:36:55,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2098.95 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 483.29 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,912 INFO L168 Benchmark]: Boogie Preprocessor took 249.23 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,912 INFO L168 Benchmark]: RCFGBuilder took 10555.10 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 161.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -144.7 MB). Peak memory consumption was 654.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,913 INFO L168 Benchmark]: TraceAbstraction took 188708.71 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 228.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 23:36:55,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2098.95 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 483.29 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 816.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 249.23 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10555.10 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 161.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -144.7 MB). Peak memory consumption was 654.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 188708.71 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 228.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...