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_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:45:27,221 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:45:27,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:45:27,235 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:45:27,235 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:45:27,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:45:27,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:45:27,240 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:45:27,242 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:45:27,243 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:45:27,244 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:45:27,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:45:27,245 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:45:27,246 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:45:27,247 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:45:27,248 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:45:27,249 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:45:27,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:45:27,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:45:27,255 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:45:27,256 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:45:27,257 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:45:27,260 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:45:27,260 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:45:27,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:45:27,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:45:27,264 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:45:27,265 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:45:27,266 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:45:27,269 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:45:27,270 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:45:27,273 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:45:27,273 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:45:27,273 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:45:27,274 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:45:27,275 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:45:27,277 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 11:45:27,305 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:45:27,305 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:45:27,306 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:45:27,307 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:45:27,307 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:45:27,307 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:45:27,307 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:45:27,310 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:45:27,310 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:45:27,310 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:45:27,311 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:45:27,311 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:45:27,312 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:45:27,312 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:45:27,312 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:45:27,312 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:45:27,313 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:45:27,313 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:45:27,313 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:45:27,313 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:45:27,313 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:45:27,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:45:27,314 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:45:27,314 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:45:27,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:27,316 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:45:27,317 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:45:27,317 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:45:27,317 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:45:27,317 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:45:27,317 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:45:27,318 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:45:27,318 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:45:27,318 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:45:27,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:45:27,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:45:27,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:45:27,411 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:45:27,411 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:45:27,412 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-09-18 11:45:27,773 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f075fd058/903c38bb62cc4ce793c8cad8ba40ac6c/FLAG4f1ef656f [2018-09-18 11:45:28,284 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:45:28,285 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-09-18 11:45:28,321 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f075fd058/903c38bb62cc4ce793c8cad8ba40ac6c/FLAG4f1ef656f [2018-09-18 11:45:28,342 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f075fd058/903c38bb62cc4ce793c8cad8ba40ac6c [2018-09-18 11:45:28,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:45:28,360 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:45:28,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:28,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:45:28,369 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:45:28,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:28,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:28, skipping insertion in model container [2018-09-18 11:45:28,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:28" (1/1) ... [2018-09-18 11:45:28,387 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:45:29,816 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:29,839 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:45:30,553 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:30,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30 WrapperNode [2018-09-18 11:45:30,868 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:30,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:30,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:45:30,869 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:45:30,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:31,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:31,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:31,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:45:31,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:45:31,239 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:45:32,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (1/1) ... [2018-09-18 11:45:32,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:45:32,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:45:32,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:45:32,534 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:45:32,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (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 11:45:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:45:32,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:45:32,611 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:45:32,611 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:45:32,611 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:45:32,612 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:45:32,612 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:45:32,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:45:32,612 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:45:32,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:45:43,017 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:45:43,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:43 BoogieIcfgContainer [2018-09-18 11:45:43,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:45:43,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:45:43,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:45:43,022 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:45:43,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:45:28" (1/3) ... [2018-09-18 11:45:43,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:43, skipping insertion in model container [2018-09-18 11:45:43,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:30" (2/3) ... [2018-09-18 11:45:43,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a9bb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:45:43, skipping insertion in model container [2018-09-18 11:45:43,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:43" (3/3) ... [2018-09-18 11:45:43,026 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label56_true-unreach-call.c [2018-09-18 11:45:43,036 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:45:43,045 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:45:43,107 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:45:43,108 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:45:43,108 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:45:43,108 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:45:43,109 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:45:43,109 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:45:43,109 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:45:43,109 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:45:43,109 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:45:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:45:43,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-18 11:45:43,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:43,176 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, 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 11:45:43,177 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:43,182 INFO L82 PathProgramCache]: Analyzing trace with hash -460452772, now seen corresponding path program 1 times [2018-09-18 11:45:43,185 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:43,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:43,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,231 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:43,687 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:45:43,807 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 11:45:43,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:43,810 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:45:43,810 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:43,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:45:43,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:45:43,834 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:45:43,836 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:45:53,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:53,254 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-09-18 11:45:53,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:45:53,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-09-18 11:45:53,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:53,299 INFO L225 Difference]: With dead ends: 3087 [2018-09-18 11:45:53,300 INFO L226 Difference]: Without dead ends: 1965 [2018-09-18 11:45:53,311 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 11:45:53,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-09-18 11:45:53,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-09-18 11:45:53,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-09-18 11:45:53,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-09-18 11:45:53,715 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 60 [2018-09-18 11:45:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:53,717 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-09-18 11:45:53,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:45:53,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-09-18 11:45:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-09-18 11:45:53,730 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:53,731 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, 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] [2018-09-18 11:45:53,731 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:53,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1916095534, now seen corresponding path program 1 times [2018-09-18 11:45:53,732 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:53,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:53,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:53,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:53,734 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:54,120 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:54,120 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:54,121 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:45:54,121 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:54,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:45:54,123 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:45:54,123 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:45:54,124 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-09-18 11:46:06,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:06,897 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-09-18 11:46:06,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:06,900 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-09-18 11:46:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:06,927 INFO L225 Difference]: With dead ends: 5634 [2018-09-18 11:46:06,928 INFO L226 Difference]: Without dead ends: 3681 [2018-09-18 11:46:06,937 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:46:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-09-18 11:46:07,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-09-18 11:46:07,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-09-18 11:46:07,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-09-18 11:46:07,184 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 137 [2018-09-18 11:46:07,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:07,184 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-09-18 11:46:07,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:07,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-09-18 11:46:07,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-18 11:46:07,199 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:07,200 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, 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] [2018-09-18 11:46:07,200 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:07,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1937343332, now seen corresponding path program 1 times [2018-09-18 11:46:07,201 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:07,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:07,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:07,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:07,205 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:07,525 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:07,525 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:07,525 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:46:07,526 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:07,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:46:07,527 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:46:07,527 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:46:07,527 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-09-18 11:46:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:18,962 INFO L93 Difference]: Finished difference Result 12385 states and 20601 transitions. [2018-09-18 11:46:18,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:18,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-09-18 11:46:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:19,012 INFO L225 Difference]: With dead ends: 12385 [2018-09-18 11:46:19,013 INFO L226 Difference]: Without dead ends: 8741 [2018-09-18 11:46:19,035 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:46:19,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2018-09-18 11:46:19,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8684. [2018-09-18 11:46:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8684 states. [2018-09-18 11:46:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12864 transitions. [2018-09-18 11:46:19,263 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12864 transitions. Word has length 156 [2018-09-18 11:46:19,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:19,264 INFO L480 AbstractCegarLoop]: Abstraction has 8684 states and 12864 transitions. [2018-09-18 11:46:19,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12864 transitions. [2018-09-18 11:46:19,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-09-18 11:46:19,268 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:19,268 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, 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] [2018-09-18 11:46:19,269 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:19,269 INFO L82 PathProgramCache]: Analyzing trace with hash -411394740, now seen corresponding path program 1 times [2018-09-18 11:46:19,269 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:19,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:19,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:19,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:19,271 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:19,603 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:46:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:19,749 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:19,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:46:19,750 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:19,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:46:19,751 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:46:19,751 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:46:19,751 INFO L87 Difference]: Start difference. First operand 8684 states and 12864 transitions. Second operand 6 states. [2018-09-18 11:46:33,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:33,870 INFO L93 Difference]: Finished difference Result 22909 states and 34919 transitions. [2018-09-18 11:46:33,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:33,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-09-18 11:46:33,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:33,955 INFO L225 Difference]: With dead ends: 22909 [2018-09-18 11:46:33,955 INFO L226 Difference]: Without dead ends: 14231 [2018-09-18 11:46:33,992 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:46:34,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2018-09-18 11:46:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 14057. [2018-09-18 11:46:34,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14057 states. [2018-09-18 11:46:34,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14057 states to 14057 states and 19960 transitions. [2018-09-18 11:46:34,328 INFO L78 Accepts]: Start accepts. Automaton has 14057 states and 19960 transitions. Word has length 168 [2018-09-18 11:46:34,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:34,328 INFO L480 AbstractCegarLoop]: Abstraction has 14057 states and 19960 transitions. [2018-09-18 11:46:34,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14057 states and 19960 transitions. [2018-09-18 11:46:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-18 11:46:34,340 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:34,341 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, 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, 1, 1, 1, 1, 1, 1, 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 11:46:34,341 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:34,341 INFO L82 PathProgramCache]: Analyzing trace with hash -457278060, now seen corresponding path program 1 times [2018-09-18 11:46:34,342 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:34,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:34,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:34,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:34,344 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:34,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:46:34,668 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:46:34,668 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 11:46:34,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:34,678 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:46:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:34,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:46:34,955 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-09-18 11:46:34,956 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:46:35,164 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:46:35,199 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:46:35,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-18 11:46:35,200 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:35,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:46:35,201 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:46:35,201 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:46:35,202 INFO L87 Difference]: Start difference. First operand 14057 states and 19960 transitions. Second operand 5 states. [2018-09-18 11:46:53,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:53,236 INFO L93 Difference]: Finished difference Result 41297 states and 63500 transitions. [2018-09-18 11:46:53,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:46:53,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2018-09-18 11:46:53,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:53,394 INFO L225 Difference]: With dead ends: 41297 [2018-09-18 11:46:53,394 INFO L226 Difference]: Without dead ends: 27246 [2018-09-18 11:46:53,464 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:46:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27246 states. [2018-09-18 11:46:54,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27246 to 27007. [2018-09-18 11:46:54,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27007 states. [2018-09-18 11:46:54,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27007 states to 27007 states and 38194 transitions. [2018-09-18 11:46:54,194 INFO L78 Accepts]: Start accepts. Automaton has 27007 states and 38194 transitions. Word has length 232 [2018-09-18 11:46:54,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:54,194 INFO L480 AbstractCegarLoop]: Abstraction has 27007 states and 38194 transitions. [2018-09-18 11:46:54,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:46:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 27007 states and 38194 transitions. [2018-09-18 11:46:54,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-18 11:46:54,209 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:54,210 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, 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, 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 11:46:54,210 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:54,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1397570392, now seen corresponding path program 1 times [2018-09-18 11:46:54,211 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:54,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:54,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:54,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:54,212 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:54,533 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:46:54,534 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:54,534 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:46:54,534 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:54,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:46:54,535 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:46:54,535 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:46:54,536 INFO L87 Difference]: Start difference. First operand 27007 states and 38194 transitions. Second operand 3 states. [2018-09-18 11:47:08,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:08,069 INFO L93 Difference]: Finished difference Result 63942 states and 95295 transitions. [2018-09-18 11:47:08,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:47:08,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2018-09-18 11:47:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:08,222 INFO L225 Difference]: With dead ends: 63942 [2018-09-18 11:47:08,223 INFO L226 Difference]: Without dead ends: 36941 [2018-09-18 11:47:08,290 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:47:08,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36941 states. [2018-09-18 11:47:08,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36941 to 36941. [2018-09-18 11:47:08,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36941 states. [2018-09-18 11:47:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36941 states to 36941 states and 53029 transitions. [2018-09-18 11:47:09,020 INFO L78 Accepts]: Start accepts. Automaton has 36941 states and 53029 transitions. Word has length 262 [2018-09-18 11:47:09,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:09,021 INFO L480 AbstractCegarLoop]: Abstraction has 36941 states and 53029 transitions. [2018-09-18 11:47:09,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:47:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 36941 states and 53029 transitions. [2018-09-18 11:47:09,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-18 11:47:09,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:09,035 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:09,036 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:09,036 INFO L82 PathProgramCache]: Analyzing trace with hash -594006696, now seen corresponding path program 1 times [2018-09-18 11:47:09,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:09,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:09,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:09,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:09,038 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 106 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:09,383 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:09,383 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 11:47:09,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:09,401 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:09,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-09-18 11:47:09,912 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 106 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:10,208 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:47:10,209 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-18 11:47:10,209 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:10,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:47:10,209 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:47:10,210 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:47:10,210 INFO L87 Difference]: Start difference. First operand 36941 states and 53029 transitions. Second operand 5 states. [2018-09-18 11:47:20,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:20,637 INFO L93 Difference]: Finished difference Result 87794 states and 133698 transitions. [2018-09-18 11:47:20,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:47:20,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-09-18 11:47:20,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:20,845 INFO L225 Difference]: With dead ends: 87794 [2018-09-18 11:47:20,845 INFO L226 Difference]: Without dead ends: 50859 [2018-09-18 11:47:20,939 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 519 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:20,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50859 states. [2018-09-18 11:47:22,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50859 to 50582. [2018-09-18 11:47:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50582 states. [2018-09-18 11:47:22,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50582 states to 50582 states and 73593 transitions. [2018-09-18 11:47:22,382 INFO L78 Accepts]: Start accepts. Automaton has 50582 states and 73593 transitions. Word has length 262 [2018-09-18 11:47:22,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:22,383 INFO L480 AbstractCegarLoop]: Abstraction has 50582 states and 73593 transitions. [2018-09-18 11:47:22,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:47:22,383 INFO L276 IsEmpty]: Start isEmpty. Operand 50582 states and 73593 transitions. [2018-09-18 11:47:22,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2018-09-18 11:47:22,426 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:22,427 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:22,427 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:22,427 INFO L82 PathProgramCache]: Analyzing trace with hash -794275078, now seen corresponding path program 1 times [2018-09-18 11:47:22,428 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:22,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:22,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:22,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:22,429 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:23,101 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:23,102 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:23,102 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 11:47:23,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:23,119 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:23,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:23,682 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:23,965 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:23,965 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 11:47:23,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:23,982 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:24,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:24,409 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:24,410 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:24,706 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:47:24,706 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:47:24,706 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:47:24,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:47:24,708 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:47:24,708 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:24,709 INFO L87 Difference]: Start difference. First operand 50582 states and 73593 transitions. Second operand 9 states. [2018-09-18 11:47:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:43,905 INFO L93 Difference]: Finished difference Result 124287 states and 219288 transitions. [2018-09-18 11:47:43,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 11:47:43,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 348 [2018-09-18 11:47:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:44,337 INFO L225 Difference]: With dead ends: 124287 [2018-09-18 11:47:44,338 INFO L226 Difference]: Without dead ends: 73711 [2018-09-18 11:47:44,535 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1414 GetRequests, 1390 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:47:44,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73711 states. [2018-09-18 11:47:46,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73711 to 73259. [2018-09-18 11:47:46,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73259 states. [2018-09-18 11:47:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73259 states to 73259 states and 113291 transitions. [2018-09-18 11:47:46,418 INFO L78 Accepts]: Start accepts. Automaton has 73259 states and 113291 transitions. Word has length 348 [2018-09-18 11:47:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:46,419 INFO L480 AbstractCegarLoop]: Abstraction has 73259 states and 113291 transitions. [2018-09-18 11:47:46,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:47:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 73259 states and 113291 transitions. [2018-09-18 11:47:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-09-18 11:47:46,525 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:46,526 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:47:46,526 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:46,526 INFO L82 PathProgramCache]: Analyzing trace with hash -69382556, now seen corresponding path program 1 times [2018-09-18 11:47:46,526 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:46,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:46,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:46,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:46,528 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:46,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 256 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:47:47,013 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:47,013 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:47:47,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:47,021 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:47,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-09-18 11:47:48,443 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:49,249 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 256 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:47:49,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:49,270 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:47:49,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:49,286 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:49,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:49,616 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 387 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-09-18 11:47:49,616 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:49,806 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 256 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:47:49,807 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:47:49,808 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:47:49,808 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:47:49,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:47:49,810 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:47:49,810 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:47:49,810 INFO L87 Difference]: Start difference. First operand 73259 states and 113291 transitions. Second operand 9 states. [2018-09-18 11:48:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:15,031 INFO L93 Difference]: Finished difference Result 157073 states and 285508 transitions. [2018-09-18 11:48:15,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-18 11:48:15,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 356 [2018-09-18 11:48:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:15,617 INFO L225 Difference]: With dead ends: 157073 [2018-09-18 11:48:15,617 INFO L226 Difference]: Without dead ends: 83825 [2018-09-18 11:48:16,722 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1454 GetRequests, 1426 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:48:16,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83825 states. [2018-09-18 11:48:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83825 to 82121. [2018-09-18 11:48:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82121 states. [2018-09-18 11:48:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82121 states to 82121 states and 114494 transitions. [2018-09-18 11:48:18,574 INFO L78 Accepts]: Start accepts. Automaton has 82121 states and 114494 transitions. Word has length 356 [2018-09-18 11:48:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:18,575 INFO L480 AbstractCegarLoop]: Abstraction has 82121 states and 114494 transitions. [2018-09-18 11:48:18,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:48:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 82121 states and 114494 transitions. [2018-09-18 11:48:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-09-18 11:48:18,610 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:18,610 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:18,610 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:18,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1424138924, now seen corresponding path program 1 times [2018-09-18 11:48:18,611 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:18,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:18,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:18,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:18,612 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:18,964 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:48:19,579 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 157 proven. 201 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:48:19,580 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:19,580 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:19,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:19,588 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:19,698 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:20,080 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 302 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-18 11:48:20,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:22,003 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 169 proven. 278 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:48:22,024 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:22,024 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 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:48:22,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:22,043 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:22,281 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-18 11:48:22,349 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2018-09-18 11:48:22,500 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 11:48:22,500 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 7, 8] total 18 [2018-09-18 11:48:22,500 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:22,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:48:22,501 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:48:22,501 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:48:22,501 INFO L87 Difference]: Start difference. First operand 82121 states and 114494 transitions. Second operand 3 states. [2018-09-18 11:48:30,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:30,712 INFO L93 Difference]: Finished difference Result 164237 states and 228958 transitions. [2018-09-18 11:48:30,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:48:30,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 363 [2018-09-18 11:48:30,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:30,989 INFO L225 Difference]: With dead ends: 164237 [2018-09-18 11:48:30,990 INFO L226 Difference]: Without dead ends: 82127 [2018-09-18 11:48:32,162 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1462 GetRequests, 1441 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:48:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82127 states. [2018-09-18 11:48:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82127 to 82112. [2018-09-18 11:48:33,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82112 states. [2018-09-18 11:48:33,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82112 states to 82112 states and 103352 transitions. [2018-09-18 11:48:33,192 INFO L78 Accepts]: Start accepts. Automaton has 82112 states and 103352 transitions. Word has length 363 [2018-09-18 11:48:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:33,193 INFO L480 AbstractCegarLoop]: Abstraction has 82112 states and 103352 transitions. [2018-09-18 11:48:33,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:48:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 82112 states and 103352 transitions. [2018-09-18 11:48:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-09-18 11:48:33,281 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:33,281 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:48:33,281 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:33,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1030147593, now seen corresponding path program 1 times [2018-09-18 11:48:33,282 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:33,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:33,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:33,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:33,283 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 106 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:48:33,707 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:33,707 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:33,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:33,716 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:33,851 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-09-18 11:48:35,103 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 106 proven. 189 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:48:35,402 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:48:35,402 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-18 11:48:35,403 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:48:35,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:48:35,403 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:48:35,403 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:48:35,404 INFO L87 Difference]: Start difference. First operand 82112 states and 103352 transitions. Second operand 5 states. [2018-09-18 11:48:48,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:48,766 INFO L93 Difference]: Finished difference Result 207349 states and 272528 transitions. [2018-09-18 11:48:48,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:48:48,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 506 [2018-09-18 11:48:48,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:49,144 INFO L225 Difference]: With dead ends: 207349 [2018-09-18 11:48:49,145 INFO L226 Difference]: Without dead ends: 125248 [2018-09-18 11:48:49,303 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1007 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:48:49,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125248 states. [2018-09-18 11:48:51,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125248 to 124766. [2018-09-18 11:48:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124766 states. [2018-09-18 11:48:51,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124766 states to 124766 states and 157334 transitions. [2018-09-18 11:48:51,979 INFO L78 Accepts]: Start accepts. Automaton has 124766 states and 157334 transitions. Word has length 506 [2018-09-18 11:48:51,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:51,980 INFO L480 AbstractCegarLoop]: Abstraction has 124766 states and 157334 transitions. [2018-09-18 11:48:51,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:48:51,980 INFO L276 IsEmpty]: Start isEmpty. Operand 124766 states and 157334 transitions. [2018-09-18 11:48:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2018-09-18 11:48:52,097 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:52,098 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-09-18 11:48:52,098 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1365326288, now seen corresponding path program 1 times [2018-09-18 11:48:52,098 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:52,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:52,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:52,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:52,100 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 215 proven. 6 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2018-09-18 11:48:53,484 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:53,484 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:53,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:53,494 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:53,656 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:54,011 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 464 proven. 2 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-09-18 11:48:54,011 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:54,359 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 464 proven. 2 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-09-18 11:48:54,380 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:54,380 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:48:54,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:54,396 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:54,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 464 proven. 2 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-09-18 11:48:55,491 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 464 proven. 2 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2018-09-18 11:48:55,816 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:48:55,817 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 11:48:55,817 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:48:55,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:48:55,818 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:48:55,818 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:48:55,818 INFO L87 Difference]: Start difference. First operand 124766 states and 157334 transitions. Second operand 9 states. [2018-09-18 11:49:09,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:09,942 INFO L93 Difference]: Finished difference Result 234344 states and 309928 transitions. [2018-09-18 11:49:09,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:49:09,943 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 560 [2018-09-18 11:49:09,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:10,346 INFO L225 Difference]: With dead ends: 234344 [2018-09-18 11:49:10,346 INFO L226 Difference]: Without dead ends: 125850 [2018-09-18 11:49:10,548 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2263 GetRequests, 2238 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:49:10,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125850 states. [2018-09-18 11:49:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125850 to 125308. [2018-09-18 11:49:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125308 states. [2018-09-18 11:49:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125308 states to 125308 states and 157332 transitions. [2018-09-18 11:49:12,858 INFO L78 Accepts]: Start accepts. Automaton has 125308 states and 157332 transitions. Word has length 560 [2018-09-18 11:49:12,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:12,860 INFO L480 AbstractCegarLoop]: Abstraction has 125308 states and 157332 transitions. [2018-09-18 11:49:12,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:49:12,860 INFO L276 IsEmpty]: Start isEmpty. Operand 125308 states and 157332 transitions. [2018-09-18 11:49:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2018-09-18 11:49:12,967 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:12,967 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:12,968 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:12,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1210870793, now seen corresponding path program 1 times [2018-09-18 11:49:12,968 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:12,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:12,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:12,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:12,969 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-09-18 11:49:14,535 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 388 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:49:14,535 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:14,535 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:14,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:14,543 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:14,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:14,710 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 11:49:14,911 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:14,912 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:49:14,917 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:49:14,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:49:14 BoogieIcfgContainer [2018-09-18 11:49:14,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:49:14,918 INFO L168 Benchmark]: Toolchain (without parser) took 226563.02 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.9 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,919 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. [2018-09-18 11:49:14,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2507.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 328.7 MB). Peak memory consumption was 328.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 369.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,921 INFO L168 Benchmark]: Boogie Preprocessor took 1294.40 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,922 INFO L168 Benchmark]: RCFGBuilder took 10484.65 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -21.9 MB). Peak memory consumption was 756.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,923 INFO L168 Benchmark]: TraceAbstraction took 211898.65 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -684.4 MB). Peak memory consumption was 999.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:14,928 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 2507.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 328.7 MB). Peak memory consumption was 328.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 369.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1294.40 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10484.65 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 163.6 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: -21.9 MB). Peak memory consumption was 756.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211898.65 ms. Allocated memory was 2.7 GB in the beginning and 4.4 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -684.4 MB). Peak memory consumption was 999.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was analyzing trace of length 588 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.8s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 175.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7871 SDtfs, 48330 SDslu, 6661 SDs, 0 SdLazy, 78047 SolverSat, 18657 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 137.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8659 GetRequests, 8495 SyntacticMatches, 33 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125308occurred in iteration=12, 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: 13.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 3979 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 7664 NumberOfCodeBlocks, 7664 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 11884 ConstructedInterpolants, 111 QuantifiedInterpolants, 13111710 SizeOfPredicates, 9 NumberOfNonLiveVariables, 7149 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 34 InterpolantComputations, 10 PerfectInterpolantSequences, 10855/12351 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_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-49-14-942.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-49-14-942.csv Completed graceful shutdown