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/Problem15_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:40:38,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:40:38,883 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:40:38,899 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:40:38,899 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:40:38,900 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:40:38,901 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:40:38,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:40:38,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:40:38,907 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:40:38,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:40:38,908 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:40:38,910 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:40:38,912 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:40:38,913 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:40:38,913 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:40:38,917 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:40:38,919 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:40:38,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:40:38,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:40:38,935 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:40:38,937 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:40:38,939 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:40:38,952 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 23:40:38,974 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:40:38,974 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:40:38,975 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:40:38,975 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:40:38,975 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:40:38,975 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:40:38,976 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:40:38,976 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:40:38,976 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:40:38,976 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:40:38,976 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:40:38,977 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:40:38,977 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:40:38,977 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:40:38,978 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:40:38,978 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:40:38,978 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:40:38,978 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:40:38,978 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:40:38,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:40:38,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:40:38,979 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:40:38,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:40:38,979 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:40:38,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:40:38,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:40:38,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:40:38,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:40:38,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:40:38,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:40:38,981 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:40:38,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:40:38,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:40:38,981 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:40:38,982 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:40:38,982 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:40:39,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:40:39,054 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:40:39,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:40:39,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:40:39,059 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:40:39,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label37_false-unreach-call.c [2018-10-24 23:40:39,119 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3241f9bc4/60389c03e6394b31a30d9e2e0389b27d/FLAG224dcfd2f [2018-10-24 23:40:39,748 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:40:39,749 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label37_false-unreach-call.c [2018-10-24 23:40:39,768 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3241f9bc4/60389c03e6394b31a30d9e2e0389b27d/FLAG224dcfd2f [2018-10-24 23:40:39,786 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3241f9bc4/60389c03e6394b31a30d9e2e0389b27d [2018-10-24 23:40:39,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:40:39,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:40:39,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:40:39,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:40:39,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:40:39,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:40:39" (1/1) ... [2018-10-24 23:40:39,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7472627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:39, skipping insertion in model container [2018-10-24 23:40:39,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:40:39" (1/1) ... [2018-10-24 23:40:39,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:40:39,916 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:40:40,784 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:40:40,788 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:40:41,067 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:40:41,090 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:40:41,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41 WrapperNode [2018-10-24 23:40:41,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:40:41,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:40:41,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:40:41,093 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:40:41,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:40:41,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:40:41,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:40:41,498 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:40:41,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,527 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (1/1) ... [2018-10-24 23:40:41,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:40:41,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:40:41,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:40:41,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:40:41,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (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 23:40:41,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:40:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:40:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:40:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:40:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:40:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:40:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:40:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:40:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:40:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:40:49,254 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:40:49,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:40:49 BoogieIcfgContainer [2018-10-24 23:40:49,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:40:49,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:40:49,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:40:49,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:40:49,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:40:39" (1/3) ... [2018-10-24 23:40:49,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b6524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:40:49, skipping insertion in model container [2018-10-24 23:40:49,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:41" (2/3) ... [2018-10-24 23:40:49,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10b6524b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:40:49, skipping insertion in model container [2018-10-24 23:40:49,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:40:49" (3/3) ... [2018-10-24 23:40:49,264 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label37_false-unreach-call.c [2018-10-24 23:40:49,274 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:40:49,283 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:40:49,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:40:49,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:40:49,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:40:49,351 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:40:49,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:40:49,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:40:49,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:40:49,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:40:49,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:40:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 23:40:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-24 23:40:49,395 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:49,396 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] [2018-10-24 23:40:49,399 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:49,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:49,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1604486473, now seen corresponding path program 1 times [2018-10-24 23:40:49,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:49,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:49,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:49,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:49,455 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:49,826 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:40:49,930 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 23:40:49,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:49,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:40:49,933 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:49,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:40:49,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:40:49,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:40:49,958 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-10-24 23:40:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:56,997 INFO L93 Difference]: Finished difference Result 1193 states and 2149 transitions. [2018-10-24 23:40:56,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:40:56,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-10-24 23:40:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:57,025 INFO L225 Difference]: With dead ends: 1193 [2018-10-24 23:40:57,026 INFO L226 Difference]: Without dead ends: 753 [2018-10-24 23:40:57,034 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 23:40:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2018-10-24 23:40:57,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2018-10-24 23:40:57,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2018-10-24 23:40:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1315 transitions. [2018-10-24 23:40:57,154 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1315 transitions. Word has length 27 [2018-10-24 23:40:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:57,155 INFO L481 AbstractCegarLoop]: Abstraction has 753 states and 1315 transitions. [2018-10-24 23:40:57,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:40:57,155 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1315 transitions. [2018-10-24 23:40:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-24 23:40:57,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:57,165 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:57,166 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:57,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:57,166 INFO L82 PathProgramCache]: Analyzing trace with hash 539845592, now seen corresponding path program 1 times [2018-10-24 23:40:57,166 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:57,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:57,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:57,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:57,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:57,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:57,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:40:57,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:57,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:40:57,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:40:57,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:40:57,528 INFO L87 Difference]: Start difference. First operand 753 states and 1315 transitions. Second operand 5 states. [2018-10-24 23:41:16,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:41:16,100 INFO L93 Difference]: Finished difference Result 2821 states and 5078 transitions. [2018-10-24 23:41:16,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:41:16,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2018-10-24 23:41:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:41:16,120 INFO L225 Difference]: With dead ends: 2821 [2018-10-24 23:41:16,120 INFO L226 Difference]: Without dead ends: 2074 [2018-10-24 23:41:16,128 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:41:16,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2018-10-24 23:41:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2049. [2018-10-24 23:41:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2049 states. [2018-10-24 23:41:16,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3213 transitions. [2018-10-24 23:41:16,215 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3213 transitions. Word has length 107 [2018-10-24 23:41:16,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:41:16,216 INFO L481 AbstractCegarLoop]: Abstraction has 2049 states and 3213 transitions. [2018-10-24 23:41:16,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:41:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3213 transitions. [2018-10-24 23:41:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 23:41:16,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:41:16,223 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:41:16,223 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:41:16,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:41:16,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1140571872, now seen corresponding path program 1 times [2018-10-24 23:41:16,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:41:16,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:41:16,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:41:16,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:41:16,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:41:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:41:16,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:41:16,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:41:16,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:41:16,517 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:41:16,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:41:16,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:41:16,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:41:16,519 INFO L87 Difference]: Start difference. First operand 2049 states and 3213 transitions. Second operand 6 states. [2018-10-24 23:41:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:41:29,525 INFO L93 Difference]: Finished difference Result 6265 states and 10267 transitions. [2018-10-24 23:41:29,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:41:29,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 111 [2018-10-24 23:41:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:41:29,550 INFO L225 Difference]: With dead ends: 6265 [2018-10-24 23:41:29,550 INFO L226 Difference]: Without dead ends: 4222 [2018-10-24 23:41:29,568 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:41:29,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2018-10-24 23:41:29,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 4166. [2018-10-24 23:41:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4166 states. [2018-10-24 23:41:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4166 states to 4166 states and 6101 transitions. [2018-10-24 23:41:29,673 INFO L78 Accepts]: Start accepts. Automaton has 4166 states and 6101 transitions. Word has length 111 [2018-10-24 23:41:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:41:29,674 INFO L481 AbstractCegarLoop]: Abstraction has 4166 states and 6101 transitions. [2018-10-24 23:41:29,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:41:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4166 states and 6101 transitions. [2018-10-24 23:41:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2018-10-24 23:41:29,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:41:29,681 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1] [2018-10-24 23:41:29,682 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:41:29,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:41:29,682 INFO L82 PathProgramCache]: Analyzing trace with hash -142723084, now seen corresponding path program 1 times [2018-10-24 23:41:29,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:41:29,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:41:29,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:41:29,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:41:29,684 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:41:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:41:29,992 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 41 proven. 63 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 23:41:29,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:41:29,992 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:41:29,993 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 182 with the following transitions: [2018-10-24 23:41:29,995 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [189], [191], [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], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:41:30,041 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:41:30,041 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:41:30,778 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:41:30,779 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:41:30,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:41:30,811 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:41:31,470 INFO L232 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-24 23:41:31,470 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:41:31,723 INFO L413 sIntCurrentIteration]: We have 180 unified AI predicates [2018-10-24 23:41:31,723 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:41:31,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:41:31,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-24 23:41:31,725 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:41:31,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:41:31,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:41:31,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:41:31,728 INFO L87 Difference]: Start difference. First operand 4166 states and 6101 transitions. Second operand 6 states. [2018-10-24 23:41:42,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:41:42,316 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:92) 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 23:41:42,321 INFO L168 Benchmark]: Toolchain (without parser) took 62518.85 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -973.1 MB). Peak memory consumption was 283.6 MB. Max. memory is 7.1 GB. [2018-10-24 23:41:42,323 INFO L168 Benchmark]: CDTParser took 0.18 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 23:41:42,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1287.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:41:42,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 405.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 23:41:42,326 INFO L168 Benchmark]: Boogie Preprocessor took 249.24 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:41:42,326 INFO L168 Benchmark]: RCFGBuilder took 7508.19 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: 325.1 MB). Peak memory consumption was 325.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:41:42,327 INFO L168 Benchmark]: TraceAbstraction took 53064.06 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 493.9 MB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -529.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:41:42,333 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 1287.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 405.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 762.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -888.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 249.24 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: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7508.19 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: 325.1 MB). Peak memory consumption was 325.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53064.06 ms. Allocated memory was 2.3 GB in the beginning and 2.8 GB in the end (delta: 493.9 MB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -529.6 MB). There was no memory consumed. 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...