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_label23_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:39:42,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:39:42,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:39:42,297 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:39:42,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:39:42,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:39:42,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:39:42,302 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:39:42,304 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:39:42,305 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:39:42,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:39:42,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:39:42,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:39:42,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:39:42,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:39:42,310 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:39:42,311 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:39:42,313 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:39:42,315 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:39:42,316 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:39:42,318 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:39:42,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:39:42,322 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:39:42,322 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:39:42,322 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:39:42,323 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:39:42,324 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:39:42,325 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:39:42,326 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:39:42,327 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:39:42,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:39:42,328 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 23:39:42,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 23:39:42,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 23:39:42,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 23:39:42,331 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 23:39:42,331 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 23:39:42,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:39:42,347 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:39:42,347 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:39:42,348 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:39:42,348 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:39:42,348 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:39:42,348 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:39:42,348 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:39:42,349 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:39:42,349 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:39:42,349 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:39:42,349 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:39:42,349 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:39:42,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:39:42,350 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:39:42,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:39:42,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:39:42,351 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:39:42,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:39:42,351 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:39:42,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:39:42,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:39:42,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:39:42,352 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:39:42,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:39:42,353 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:39:42,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:39:42,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:39:42,353 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:39:42,354 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:39:42,354 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:39:42,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:39:42,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:39:42,354 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:39:42,355 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:39:42,355 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:39:42,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:39:42,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:39:42,434 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:39:42,436 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:39:42,437 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:39:42,437 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-10-24 23:39:42,507 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1fd7c745/1ff1ab28df01411099ed92fe2c624d73/FLAG11cbe6ed5 [2018-10-24 23:39:43,216 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:39:43,217 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label23_false-unreach-call.c [2018-10-24 23:39:43,240 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1fd7c745/1ff1ab28df01411099ed92fe2c624d73/FLAG11cbe6ed5 [2018-10-24 23:39:43,261 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a1fd7c745/1ff1ab28df01411099ed92fe2c624d73 [2018-10-24 23:39:43,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:39:43,275 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:39:43,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:43,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:39:43,284 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:39:43,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:43" (1/1) ... [2018-10-24 23:39:43,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44de30fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:43, skipping insertion in model container [2018-10-24 23:39:43,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:43" (1/1) ... [2018-10-24 23:39:43,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:39:43,403 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:39:44,161 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:44,165 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:39:44,478 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:44,501 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:39:44,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44 WrapperNode [2018-10-24 23:39:44,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:44,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:44,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:39:44,503 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:39:44,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:44,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:44,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:44,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:39:44,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:39:44,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:39:44,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:44,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:44,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:44,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:45,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:45,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:45,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (1/1) ... [2018-10-24 23:39:45,153 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:39:45,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:39:45,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:39:45,154 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:39:45,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (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 23:39:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:39:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:39:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:39:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:39:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:39:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:39:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:39:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:39:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:39:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:39:52,221 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:39:52,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:52 BoogieIcfgContainer [2018-10-24 23:39:52,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:39:52,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:39:52,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:39:52,228 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:39:52,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:39:43" (1/3) ... [2018-10-24 23:39:52,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500a75bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:52, skipping insertion in model container [2018-10-24 23:39:52,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:44" (2/3) ... [2018-10-24 23:39:52,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@500a75bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:52, skipping insertion in model container [2018-10-24 23:39:52,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:52" (3/3) ... [2018-10-24 23:39:52,232 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label23_false-unreach-call.c [2018-10-24 23:39:52,242 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:39:52,252 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:39:52,270 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:39:52,309 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:39:52,310 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:39:52,310 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:39:52,310 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:39:52,310 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:39:52,310 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:39:52,311 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:39:52,311 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:39:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 23:39:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 23:39:52,350 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:39:52,351 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] [2018-10-24 23:39:52,354 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:39:52,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:39:52,362 INFO L82 PathProgramCache]: Analyzing trace with hash -263633140, now seen corresponding path program 1 times [2018-10-24 23:39:52,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:39:52,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:52,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:39:52,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:52,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:39:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:39:52,810 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 23:39:52,818 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 23:39:52,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:39:52,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:39:52,821 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:39:52,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:39:52,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:39:52,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:39:52,847 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 23:40:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:00,961 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-10-24 23:40:00,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:00,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-10-24 23:40:00,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:01,001 INFO L225 Difference]: With dead ends: 1558 [2018-10-24 23:40:01,001 INFO L226 Difference]: Without dead ends: 1114 [2018-10-24 23:40:01,010 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:01,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-10-24 23:40:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-10-24 23:40:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-10-24 23:40:01,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-10-24 23:40:01,149 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 24 [2018-10-24 23:40:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:01,150 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-10-24 23:40:01,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:01,150 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-10-24 23:40:01,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-10-24 23:40:01,159 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:01,160 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:40:01,160 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:01,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:01,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1599824585, now seen corresponding path program 1 times [2018-10-24 23:40:01,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:01,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:01,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:01,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:01,164 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:01,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:01,439 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:01,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:40:01,439 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:01,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:40:01,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:40:01,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:40:01,442 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 3 states. [2018-10-24 23:40:05,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:05,096 INFO L93 Difference]: Finished difference Result 2135 states and 3917 transitions. [2018-10-24 23:40:05,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:40:05,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2018-10-24 23:40:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:05,110 INFO L225 Difference]: With dead ends: 2135 [2018-10-24 23:40:05,110 INFO L226 Difference]: Without dead ends: 1382 [2018-10-24 23:40:05,117 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:40:05,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2018-10-24 23:40:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1379. [2018-10-24 23:40:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2018-10-24 23:40:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2119 transitions. [2018-10-24 23:40:05,200 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2119 transitions. Word has length 94 [2018-10-24 23:40:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:05,201 INFO L481 AbstractCegarLoop]: Abstraction has 1379 states and 2119 transitions. [2018-10-24 23:40:05,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:40:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2119 transitions. [2018-10-24 23:40:05,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-24 23:40:05,212 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:05,212 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:05,213 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:05,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:05,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1923051551, now seen corresponding path program 1 times [2018-10-24 23:40:05,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:05,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:05,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:05,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:05,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:05,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:05,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:40:05,421 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:05,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:40:05,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:40:05,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:40:05,422 INFO L87 Difference]: Start difference. First operand 1379 states and 2119 transitions. Second operand 5 states. [2018-10-24 23:40:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:14,398 INFO L93 Difference]: Finished difference Result 4123 states and 6416 transitions. [2018-10-24 23:40:14,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:40:14,401 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2018-10-24 23:40:14,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:14,421 INFO L225 Difference]: With dead ends: 4123 [2018-10-24 23:40:14,422 INFO L226 Difference]: Without dead ends: 2750 [2018-10-24 23:40:14,430 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 23:40:14,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2018-10-24 23:40:14,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2710. [2018-10-24 23:40:14,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2710 states. [2018-10-24 23:40:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3750 transitions. [2018-10-24 23:40:14,521 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3750 transitions. Word has length 111 [2018-10-24 23:40:14,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:14,522 INFO L481 AbstractCegarLoop]: Abstraction has 2710 states and 3750 transitions. [2018-10-24 23:40:14,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:40:14,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3750 transitions. [2018-10-24 23:40:14,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-10-24 23:40:14,529 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:14,529 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:14,529 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:14,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:14,533 INFO L82 PathProgramCache]: Analyzing trace with hash 56698522, now seen corresponding path program 1 times [2018-10-24 23:40:14,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:14,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:14,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:14,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:14,535 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:15,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 23:40:15,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:40:15,021 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:40:15,022 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 300 with the following transitions: [2018-10-24 23:40:15,025 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [165], [167], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:40:15,091 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:40:15,092 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:40:17,052 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:40:17,054 INFO L272 AbstractInterpreter]: Visited 282 different actions 834 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 23:40:17,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:17,098 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:40:19,187 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 81.09% of their original sizes. [2018-10-24 23:40:19,188 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:40:20,236 INFO L413 sIntCurrentIteration]: We have 298 unified AI predicates [2018-10-24 23:40:20,236 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:40:20,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:40:20,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-10-24 23:40:20,238 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:20,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 23:40:20,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 23:40:20,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-10-24 23:40:20,240 INFO L87 Difference]: Start difference. First operand 2710 states and 3750 transitions. Second operand 14 states. [2018-10-24 23:43:29,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 23:43:29,903 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 23:43:29,909 INFO L168 Benchmark]: Toolchain (without parser) took 226635.07 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -557.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 23:43:29,910 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 23:43:29,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1225.65 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 23:43:29,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 404.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 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 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:29,913 INFO L168 Benchmark]: Boogie Preprocessor took 246.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:29,914 INFO L168 Benchmark]: RCFGBuilder took 7068.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 316.7 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:29,915 INFO L168 Benchmark]: TraceAbstraction took 217684.37 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -105.7 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 23:43:29,921 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 1225.65 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 404.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.3 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 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 246.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7068.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 316.7 MB). Peak memory consumption was 316.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217684.37 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -105.7 MB). Peak memory consumption was 1.7 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...