java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:45:25,166 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:45:25,172 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:45:25,190 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:45:25,190 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:45:25,191 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:45:25,192 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:45:25,195 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:45:25,197 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:45:25,198 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:45:25,200 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:45:25,200 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:45:25,201 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:45:25,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:45:25,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:45:25,213 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:45:25,214 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:45:25,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:45:25,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:45:25,223 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:45:25,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:45:25,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:45:25,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:45:25,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:45:25,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:45:25,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:45:25,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:45:25,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:45:25,240 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:45:25,244 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:45:25,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:45:25,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:45:25,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:45:25,246 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:45:25,248 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:45:25,249 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:45:25,251 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:45:25,280 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:45:25,281 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:45:25,281 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:45:25,282 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:45:25,282 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:45:25,282 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:45:25,282 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:45:25,283 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:45:25,283 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:45:25,283 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:45:25,283 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:45:25,284 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:45:25,285 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:45:25,285 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:45:25,285 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:45:25,287 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:45:25,287 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:45:25,288 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:45:25,288 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:45:25,288 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:45:25,288 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:45:25,289 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:45:25,289 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:45:25,289 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:45:25,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:25,290 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:45:25,290 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:45:25,290 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:45:25,290 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:45:25,290 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:45:25,291 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:45:25,291 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:45:25,291 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:45:25,291 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:45:25,358 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:45:25,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:45:25,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:45:25,383 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:45:25,384 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:45:25,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-18 11:45:25,777 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779d31a27/de2cd4ecf45f4d3ba46f1cd6f7c7365e/FLAG944287c39 [2018-09-18 11:45:26,313 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:45:26,314 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label53_true-unreach-call.c [2018-09-18 11:45:26,354 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779d31a27/de2cd4ecf45f4d3ba46f1cd6f7c7365e/FLAG944287c39 [2018-09-18 11:45:26,376 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/779d31a27/de2cd4ecf45f4d3ba46f1cd6f7c7365e [2018-09-18 11:45:26,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:45:26,391 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:45:26,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:26,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:45:26,402 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:45:26,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:26" (1/1) ... [2018-09-18 11:45:26,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f06a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:26, skipping insertion in model container [2018-09-18 11:45:26,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:26" (1/1) ... [2018-09-18 11:45:26,422 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:45:28,073 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:28,094 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:45:28,808 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:29,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29 WrapperNode [2018-09-18 11:45:29,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:29,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:29,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:45:29,163 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:45:29,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:29,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:29,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:29,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:45:29,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:45:29,513 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:45:30,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:45:30,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:45:30,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:45:30,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:45:30,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:45:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:45:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:45:31,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:45:31,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:45:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:45:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:45:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:45:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:45:31,018 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:45:31,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:45:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:45:31,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:45:31,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:45:44,361 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:45:44,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:44 BoogieIcfgContainer [2018-09-18 11:45:44,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:45:44,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:45:44,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:45:44,367 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:45:44,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:45:26" (1/3) ... [2018-09-18 11:45:44,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f35e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:44, skipping insertion in model container [2018-09-18 11:45:44,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (2/3) ... [2018-09-18 11:45:44,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f35e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:44, skipping insertion in model container [2018-09-18 11:45:44,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:44" (3/3) ... [2018-09-18 11:45:44,371 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label53_true-unreach-call.c [2018-09-18 11:45:44,382 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:45:44,392 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:45:44,479 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:45:44,480 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:45:44,480 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:45:44,480 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:45:44,480 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:45:44,480 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:45:44,480 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:45:44,481 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:45:44,481 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:45:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:45:44,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-18 11:45:44,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:44,558 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:44,559 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash 403353444, now seen corresponding path program 1 times [2018-09-18 11:45:44,569 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:44,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:44,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:44,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:44,634 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:45,090 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:45:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:45,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:45,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:45:45,188 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:45,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:45:45,213 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:45:45,214 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:45:45,217 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:45:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:56,000 INFO L93 Difference]: Finished difference Result 3093 states and 5715 transitions. [2018-09-18 11:45:56,001 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:45:56,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-09-18 11:45:56,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:56,039 INFO L225 Difference]: With dead ends: 3093 [2018-09-18 11:45:56,039 INFO L226 Difference]: Without dead ends: 1971 [2018-09-18 11:45:56,053 INFO L604 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 [2018-09-18 11:45:56,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2018-09-18 11:45:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1957. [2018-09-18 11:45:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1957 states. [2018-09-18 11:45:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1957 states to 1957 states and 3535 transitions. [2018-09-18 11:45:56,241 INFO L78 Accepts]: Start accepts. Automaton has 1957 states and 3535 transitions. Word has length 38 [2018-09-18 11:45:56,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:56,243 INFO L480 AbstractCegarLoop]: Abstraction has 1957 states and 3535 transitions. [2018-09-18 11:45:56,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:45:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1957 states and 3535 transitions. [2018-09-18 11:45:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-18 11:45:56,256 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:56,257 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:56,257 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:56,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1014320268, now seen corresponding path program 1 times [2018-09-18 11:45:56,260 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:56,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:56,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:56,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:56,262 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:57,094 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:57,094 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:45:57,095 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:57,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:45:57,098 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:45:57,098 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:45:57,099 INFO L87 Difference]: Start difference. First operand 1957 states and 3535 transitions. Second operand 6 states. [2018-09-18 11:46:13,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:13,144 INFO L93 Difference]: Finished difference Result 5627 states and 10356 transitions. [2018-09-18 11:46:13,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:13,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-09-18 11:46:13,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:13,176 INFO L225 Difference]: With dead ends: 5627 [2018-09-18 11:46:13,177 INFO L226 Difference]: Without dead ends: 3676 [2018-09-18 11:46:13,187 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:46:13,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2018-09-18 11:46:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3643. [2018-09-18 11:46:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3643 states. [2018-09-18 11:46:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3643 states to 3643 states and 5987 transitions. [2018-09-18 11:46:13,329 INFO L78 Accepts]: Start accepts. Automaton has 3643 states and 5987 transitions. Word has length 121 [2018-09-18 11:46:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:13,330 INFO L480 AbstractCegarLoop]: Abstraction has 3643 states and 5987 transitions. [2018-09-18 11:46:13,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3643 states and 5987 transitions. [2018-09-18 11:46:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-18 11:46:13,340 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:13,340 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:46:13,343 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:13,344 INFO L82 PathProgramCache]: Analyzing trace with hash -504039204, now seen corresponding path program 1 times [2018-09-18 11:46:13,344 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:13,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:13,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:13,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:13,346 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:13,764 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:13,764 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:46:13,764 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:13,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:46:13,765 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:46:13,765 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:46:13,766 INFO L87 Difference]: Start difference. First operand 3643 states and 5987 transitions. Second operand 5 states. [2018-09-18 11:46:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:27,410 INFO L93 Difference]: Finished difference Result 10958 states and 18516 transitions. [2018-09-18 11:46:27,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:46:27,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-09-18 11:46:27,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:27,466 INFO L225 Difference]: With dead ends: 10958 [2018-09-18 11:46:27,467 INFO L226 Difference]: Without dead ends: 7321 [2018-09-18 11:46:27,484 INFO L604 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 [2018-09-18 11:46:27,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2018-09-18 11:46:27,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 7130. [2018-09-18 11:46:27,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7130 states. [2018-09-18 11:46:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7130 states to 7130 states and 10922 transitions. [2018-09-18 11:46:27,872 INFO L78 Accepts]: Start accepts. Automaton has 7130 states and 10922 transitions. Word has length 137 [2018-09-18 11:46:27,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:27,873 INFO L480 AbstractCegarLoop]: Abstraction has 7130 states and 10922 transitions. [2018-09-18 11:46:27,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:46:27,873 INFO L276 IsEmpty]: Start isEmpty. Operand 7130 states and 10922 transitions. [2018-09-18 11:46:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-18 11:46:27,879 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:27,880 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:46:27,880 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:27,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1493608594, now seen corresponding path program 1 times [2018-09-18 11:46:27,882 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:27,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:27,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:27,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:27,884 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:28,250 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:46:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:28,412 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:28,412 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:46:28,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:28,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:46:28,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:46:28,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:46:28,413 INFO L87 Difference]: Start difference. First operand 7130 states and 10922 transitions. Second operand 6 states. [2018-09-18 11:46:40,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:40,231 INFO L93 Difference]: Finished difference Result 19764 states and 31243 transitions. [2018-09-18 11:46:40,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:40,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-09-18 11:46:40,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:40,311 INFO L225 Difference]: With dead ends: 19764 [2018-09-18 11:46:40,311 INFO L226 Difference]: Without dead ends: 12640 [2018-09-18 11:46:40,351 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:46:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12640 states. [2018-09-18 11:46:40,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12640 to 12438. [2018-09-18 11:46:40,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2018-09-18 11:46:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 18018 transitions. [2018-09-18 11:46:40,651 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 18018 transitions. Word has length 174 [2018-09-18 11:46:40,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:40,651 INFO L480 AbstractCegarLoop]: Abstraction has 12438 states and 18018 transitions. [2018-09-18 11:46:40,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:40,652 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 18018 transitions. [2018-09-18 11:46:40,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-09-18 11:46:40,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:40,658 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:46:40,658 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:40,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1047575411, now seen corresponding path program 1 times [2018-09-18 11:46:40,659 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:40,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:40,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:40,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:40,660 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:41,284 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:41,285 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:41,285 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:46:41,285 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:41,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:46:41,286 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:46:41,286 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:46:41,286 INFO L87 Difference]: Start difference. First operand 12438 states and 18018 transitions. Second operand 6 states. [2018-09-18 11:47:04,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:04,187 INFO L93 Difference]: Finished difference Result 42956 states and 69094 transitions. [2018-09-18 11:47:04,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 11:47:04,191 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2018-09-18 11:47:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:04,356 INFO L225 Difference]: With dead ends: 42956 [2018-09-18 11:47:04,356 INFO L226 Difference]: Without dead ends: 30524 [2018-09-18 11:47:04,430 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:47:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30524 states. [2018-09-18 11:47:05,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30524 to 30284. [2018-09-18 11:47:05,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30284 states. [2018-09-18 11:47:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30284 states to 30284 states and 43678 transitions. [2018-09-18 11:47:05,247 INFO L78 Accepts]: Start accepts. Automaton has 30284 states and 43678 transitions. Word has length 196 [2018-09-18 11:47:05,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:05,247 INFO L480 AbstractCegarLoop]: Abstraction has 30284 states and 43678 transitions. [2018-09-18 11:47:05,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:47:05,248 INFO L276 IsEmpty]: Start isEmpty. Operand 30284 states and 43678 transitions. [2018-09-18 11:47:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-18 11:47:05,255 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:05,256 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:05,256 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1056237497, now seen corresponding path program 1 times [2018-09-18 11:47:05,256 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:05,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:05,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:05,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:05,258 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:05,598 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:47:06,005 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:06,006 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:06,006 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:47:06,006 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:06,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:47:06,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:47:06,007 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:47:06,008 INFO L87 Difference]: Start difference. First operand 30284 states and 43678 transitions. Second operand 6 states. [2018-09-18 11:47:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:20,296 INFO L93 Difference]: Finished difference Result 74599 states and 116601 transitions. [2018-09-18 11:47:20,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:47:20,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-09-18 11:47:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:20,497 INFO L225 Difference]: With dead ends: 74599 [2018-09-18 11:47:20,497 INFO L226 Difference]: Without dead ends: 44321 [2018-09-18 11:47:20,597 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:20,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44321 states. [2018-09-18 11:47:21,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44321 to 44006. [2018-09-18 11:47:21,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44006 states. [2018-09-18 11:47:22,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44006 states to 44006 states and 62393 transitions. [2018-09-18 11:47:22,087 INFO L78 Accepts]: Start accepts. Automaton has 44006 states and 62393 transitions. Word has length 219 [2018-09-18 11:47:22,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:22,087 INFO L480 AbstractCegarLoop]: Abstraction has 44006 states and 62393 transitions. [2018-09-18 11:47:22,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:47:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 44006 states and 62393 transitions. [2018-09-18 11:47:22,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-18 11:47:22,100 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:22,100 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:22,101 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:22,101 INFO L82 PathProgramCache]: Analyzing trace with hash 342183432, now seen corresponding path program 1 times [2018-09-18 11:47:22,101 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:22,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:22,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:22,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:22,102 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:22,477 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:22,478 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:47:22,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:22,498 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:22,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-09-18 11:47:23,192 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:24,089 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 62 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:24,110 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:47:24,111 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-18 11:47:24,111 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:24,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:47:24,112 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:47:24,112 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:24,112 INFO L87 Difference]: Start difference. First operand 44006 states and 62393 transitions. Second operand 5 states. [2018-09-18 11:47:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:36,680 INFO L93 Difference]: Finished difference Result 101370 states and 153613 transitions. [2018-09-18 11:47:36,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:47:36,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2018-09-18 11:47:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:37,025 INFO L225 Difference]: With dead ends: 101370 [2018-09-18 11:47:37,025 INFO L226 Difference]: Without dead ends: 57370 [2018-09-18 11:47:37,296 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 481 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:37,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57370 states. [2018-09-18 11:47:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57370 to 57070. [2018-09-18 11:47:38,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57070 states. [2018-09-18 11:47:39,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57070 states to 57070 states and 83633 transitions. [2018-09-18 11:47:39,018 INFO L78 Accepts]: Start accepts. Automaton has 57070 states and 83633 transitions. Word has length 243 [2018-09-18 11:47:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:39,019 INFO L480 AbstractCegarLoop]: Abstraction has 57070 states and 83633 transitions. [2018-09-18 11:47:39,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:47:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 57070 states and 83633 transitions. [2018-09-18 11:47:39,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-18 11:47:39,034 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:39,034 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:39,035 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:39,035 INFO L82 PathProgramCache]: Analyzing trace with hash -331859944, now seen corresponding path program 1 times [2018-09-18 11:47:39,035 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:39,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:39,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:39,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:39,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 139 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:39,799 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:39,799 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:47:39,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:39,808 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:39,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:39,989 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:39,989 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:40,168 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:47:40,169 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2018-09-18 11:47:40,169 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:40,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:47:40,170 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:47:40,170 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:40,170 INFO L87 Difference]: Start difference. First operand 57070 states and 83633 transitions. Second operand 3 states. [2018-09-18 11:47:49,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:49,271 INFO L93 Difference]: Finished difference Result 123052 states and 182628 transitions. [2018-09-18 11:47:49,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:47:49,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2018-09-18 11:47:49,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:49,502 INFO L225 Difference]: With dead ends: 123052 [2018-09-18 11:47:49,503 INFO L226 Difference]: Without dead ends: 65988 [2018-09-18 11:47:49,666 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:49,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65988 states. [2018-09-18 11:47:50,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65988 to 63544. [2018-09-18 11:47:50,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63544 states. [2018-09-18 11:47:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63544 states to 63544 states and 87020 transitions. [2018-09-18 11:47:50,970 INFO L78 Accepts]: Start accepts. Automaton has 63544 states and 87020 transitions. Word has length 249 [2018-09-18 11:47:50,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:50,970 INFO L480 AbstractCegarLoop]: Abstraction has 63544 states and 87020 transitions. [2018-09-18 11:47:50,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:47:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 63544 states and 87020 transitions. [2018-09-18 11:47:51,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-09-18 11:47:51,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:51,004 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:47:51,004 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:51,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1966605005, now seen corresponding path program 1 times [2018-09-18 11:47:51,004 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:51,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:51,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:51,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:51,006 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:52,242 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:52,242 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:52,242 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:47:52,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:52,250 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:52,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:52,558 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:52,558 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:52,880 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:52,913 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:52,914 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:47:52,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:52,942 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:53,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:53,372 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:53,372 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:47:53,743 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:47:53,743 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 11:47:53,744 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:47:53,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:47:53,747 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:47:53,747 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:47:53,749 INFO L87 Difference]: Start difference. First operand 63544 states and 87020 transitions. Second operand 9 states. [2018-09-18 11:48:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:22,434 INFO L93 Difference]: Finished difference Result 134946 states and 227318 transitions. [2018-09-18 11:48:22,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:48:22,434 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 317 [2018-09-18 11:48:22,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:22,912 INFO L225 Difference]: With dead ends: 134946 [2018-09-18 11:48:22,912 INFO L226 Difference]: Without dead ends: 71102 [2018-09-18 11:48:23,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1325 GetRequests, 1274 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=466, Invalid=2084, Unknown=0, NotChecked=0, Total=2550 [2018-09-18 11:48:23,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71102 states. [2018-09-18 11:48:25,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71102 to 70115. [2018-09-18 11:48:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70115 states. [2018-09-18 11:48:25,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70115 states to 70115 states and 97335 transitions. [2018-09-18 11:48:25,344 INFO L78 Accepts]: Start accepts. Automaton has 70115 states and 97335 transitions. Word has length 317 [2018-09-18 11:48:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:25,345 INFO L480 AbstractCegarLoop]: Abstraction has 70115 states and 97335 transitions. [2018-09-18 11:48:25,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:48:25,346 INFO L276 IsEmpty]: Start isEmpty. Operand 70115 states and 97335 transitions. [2018-09-18 11:48:25,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2018-09-18 11:48:25,399 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:25,399 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:25,400 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:25,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1513154580, now seen corresponding path program 1 times [2018-09-18 11:48:25,400 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:25,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:25,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:25,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:25,401 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:48:25,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:48:25,846 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:48:25,846 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:25,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:48:25,847 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:48:25,847 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:48:25,847 INFO L87 Difference]: Start difference. First operand 70115 states and 97335 transitions. Second operand 4 states. [2018-09-18 11:48:39,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:39,916 INFO L93 Difference]: Finished difference Result 148507 states and 215538 transitions. [2018-09-18 11:48:39,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:48:39,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 345 [2018-09-18 11:48:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:40,279 INFO L225 Difference]: With dead ends: 148507 [2018-09-18 11:48:40,280 INFO L226 Difference]: Without dead ends: 89916 [2018-09-18 11:48:40,460 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:48:40,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89916 states. [2018-09-18 11:48:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89916 to 89888. [2018-09-18 11:48:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89888 states. [2018-09-18 11:48:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89888 states to 89888 states and 126530 transitions. [2018-09-18 11:48:43,615 INFO L78 Accepts]: Start accepts. Automaton has 89888 states and 126530 transitions. Word has length 345 [2018-09-18 11:48:43,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:43,616 INFO L480 AbstractCegarLoop]: Abstraction has 89888 states and 126530 transitions. [2018-09-18 11:48:43,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:48:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 89888 states and 126530 transitions. [2018-09-18 11:48:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2018-09-18 11:48:43,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:43,706 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:43,706 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:43,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1013230609, now seen corresponding path program 1 times [2018-09-18 11:48:43,707 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:43,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:43,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:43,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:43,708 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:48:44,173 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:48:44,174 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:48:44,174 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:44,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:48:44,175 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:48:44,175 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:48:44,175 INFO L87 Difference]: Start difference. First operand 89888 states and 126530 transitions. Second operand 4 states. [2018-09-18 11:49:05,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:05,850 INFO L93 Difference]: Finished difference Result 292931 states and 433197 transitions. [2018-09-18 11:49:05,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:49:05,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 388 [2018-09-18 11:49:05,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:07,882 INFO L225 Difference]: With dead ends: 292931 [2018-09-18 11:49:07,882 INFO L226 Difference]: Without dead ends: 203054 [2018-09-18 11:49:08,131 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203054 states. Received shutdown request... [2018-09-18 11:49:12,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203054 to 195593. [2018-09-18 11:49:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195593 states. [2018-09-18 11:49:12,473 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:49:12,478 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:49:12,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:49:12 BoogieIcfgContainer [2018-09-18 11:49:12,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:49:12,479 INFO L168 Benchmark]: Toolchain (without parser) took 226090.66 ms. Allocated memory was 1.5 GB in the beginning and 3.3 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 342.4 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,481 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:49:12,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2769.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,482 INFO L168 Benchmark]: Boogie Procedure Inliner took 349.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 968.8 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,483 INFO L168 Benchmark]: Boogie Preprocessor took 1423.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 951.6 MB). Free memory was 968.8 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,484 INFO L168 Benchmark]: RCFGBuilder took 13425.28 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 181.9 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -36.9 MB). Peak memory consumption was 764.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,486 INFO L168 Benchmark]: TraceAbstraction took 208115.67 ms. Allocated memory was 2.6 GB in the beginning and 3.3 GB in the end (delta: 664.8 MB). Free memory was 2.3 GB in the beginning and 1.0 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:49:12,494 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2769.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 349.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 968.8 MB in the end (delta: 43.3 MB). Peak memory consumption was 43.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1423.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 951.6 MB). Free memory was 968.8 MB in the beginning and 2.2 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13425.28 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 181.9 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -36.9 MB). Peak memory consumption was 764.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208115.67 ms. Allocated memory was 2.6 GB in the beginning and 3.3 GB in the end (delta: 664.8 MB). Free memory was 2.3 GB in the beginning and 1.0 GB in the end (delta: 1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 105]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 105). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 208.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 181.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9074 SDtfs, 39319 SDslu, 6246 SDs, 0 SdLazy, 72809 SolverSat, 14754 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 146.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2394 GetRequests, 2273 SyntacticMatches, 12 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89888occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 16.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 4754 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 3553 NumberOfCodeBlocks, 3553 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4660 ConstructedInterpolants, 0 QuantifiedInterpolants, 4047312 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2003 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 19 InterpolantComputations, 11 PerfectInterpolantSequences, 2087/2298 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label53_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-49-12-518.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label53_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-49-12-518.csv Completed graceful shutdown