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_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:45:26,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:45:26,248 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:45:26,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:45:26,261 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:45:26,262 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:45:26,263 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:45:26,265 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:45:26,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:45:26,267 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:45:26,268 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:45:26,268 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:45:26,269 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:45:26,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:45:26,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:45:26,272 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:45:26,273 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:45:26,275 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:45:26,277 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:45:26,279 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:45:26,280 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:45:26,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:45:26,283 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:45:26,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:45:26,290 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:45:26,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:45:26,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:45:26,293 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 11:45:26,308 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:45:26,308 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:45:26,309 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:45:26,309 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:45:26,309 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:45:26,310 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:45:26,310 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:45:26,310 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:45:26,310 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:45:26,310 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:45:26,311 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:45:26,311 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:45:26,311 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:45:26,312 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:45:26,312 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:45:26,312 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:45:26,312 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:45:26,312 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:45:26,313 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:45:26,313 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:45:26,313 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:45:26,313 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:45:26,313 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:45:26,314 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:45:26,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:26,314 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:45:26,314 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:45:26,314 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:45:26,315 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:45:26,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:45:26,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:45:26,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:45:26,377 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:45:26,378 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:45:26,379 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label55_true-unreach-call.c [2018-09-18 11:45:26,722 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe51b6a2/3be00af286e849a4b273e44616e6a8a3/FLAG62238ff5e [2018-09-18 11:45:27,249 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:45:27,250 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label55_true-unreach-call.c [2018-09-18 11:45:27,283 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe51b6a2/3be00af286e849a4b273e44616e6a8a3/FLAG62238ff5e [2018-09-18 11:45:27,301 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfe51b6a2/3be00af286e849a4b273e44616e6a8a3 [2018-09-18 11:45:27,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:45:27,317 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:45:27,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:27,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:45:27,326 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:45:27,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:27" (1/1) ... [2018-09-18 11:45:27,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7e6e75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:27, skipping insertion in model container [2018-09-18 11:45:27,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:45:27" (1/1) ... [2018-09-18 11:45:27,344 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:45:28,709 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:28,728 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:45:29,492 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:45:29,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29 WrapperNode [2018-09-18 11:45:29,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:45:29,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:29,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:45:29,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:45:29,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:29,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:45:30,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:45:30,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:45:30,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:45:30,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:30,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... [2018-09-18 11:45:31,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:45:31,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:45:31,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:45:31,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:45:31,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:45:31,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:45:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:45:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:45:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:45:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:45:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:45:31,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:45:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:45:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:45:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:45:31,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:45:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:45:31,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:45:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:45:43,448 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:45:43,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:45:43 BoogieIcfgContainer [2018-09-18 11:45:43,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:45:43,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:45:43,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:45:43,453 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:45:43,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:45:27" (1/3) ... [2018-09-18 11:45:43,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a278c6d 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 11:45:43,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:45:29" (2/3) ... [2018-09-18 11:45:43,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a278c6d 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 11:45:43,454 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 11:45:43,456 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label55_true-unreach-call.c [2018-09-18 11:45:43,466 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:45:43,474 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:45:43,536 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:45:43,537 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:45:43,537 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:45:43,538 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:45:43,538 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:45:43,538 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:45:43,538 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:45:43,538 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:45:43,538 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:45:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:45:43,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-18 11:45:43,604 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:43,606 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] [2018-09-18 11:45:43,607 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:43,612 INFO L82 PathProgramCache]: Analyzing trace with hash -661106381, now seen corresponding path program 1 times [2018-09-18 11:45:43,614 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:43,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:43,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:43,669 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:43,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:44,110 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:45:44,223 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 11:45:44,226 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:44,226 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:45:44,226 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:44,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:45:44,248 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:45:44,248 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:45:44,251 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-18 11:45:52,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:52,569 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-18 11:45:52,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:45:52,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-09-18 11:45:52,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:52,609 INFO L225 Difference]: With dead ends: 3097 [2018-09-18 11:45:52,609 INFO L226 Difference]: Without dead ends: 1975 [2018-09-18 11:45:52,622 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:45:52,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-18 11:45:52,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-18 11:45:52,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-18 11:45:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-18 11:45:52,786 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 55 [2018-09-18 11:45:52,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:52,787 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-18 11:45:52,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:45:52,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-18 11:45:52,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-18 11:45:52,795 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:52,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:52,796 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:52,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1569430114, now seen corresponding path program 1 times [2018-09-18 11:45:52,797 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:52,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:52,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:52,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:52,799 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:52,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:53,404 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:45:53,404 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:45:53,404 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:53,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:45:53,407 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:45:53,407 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:45:53,407 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-18 11:46:13,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:13,864 INFO L93 Difference]: Finished difference Result 5737 states and 9691 transitions. [2018-09-18 11:46:13,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:46:13,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-09-18 11:46:13,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:13,965 INFO L225 Difference]: With dead ends: 5737 [2018-09-18 11:46:13,966 INFO L226 Difference]: Without dead ends: 3769 [2018-09-18 11:46:13,972 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:46:13,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2018-09-18 11:46:14,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3685. [2018-09-18 11:46:14,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3685 states. [2018-09-18 11:46:14,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5659 transitions. [2018-09-18 11:46:14,093 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5659 transitions. Word has length 131 [2018-09-18 11:46:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:14,093 INFO L480 AbstractCegarLoop]: Abstraction has 3685 states and 5659 transitions. [2018-09-18 11:46:14,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:46:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5659 transitions. [2018-09-18 11:46:14,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-09-18 11:46:14,098 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:14,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:14,099 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:14,099 INFO L82 PathProgramCache]: Analyzing trace with hash -265518658, now seen corresponding path program 1 times [2018-09-18 11:46:14,099 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:14,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:14,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:14,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:14,101 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:14,386 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:14,387 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:46:14,387 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:14,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:46:14,388 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:46:14,388 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:46:14,388 INFO L87 Difference]: Start difference. First operand 3685 states and 5659 transitions. Second operand 5 states. [2018-09-18 11:46:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:38,868 INFO L93 Difference]: Finished difference Result 13664 states and 21759 transitions. [2018-09-18 11:46:38,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:46:38,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-09-18 11:46:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:38,938 INFO L225 Difference]: With dead ends: 13664 [2018-09-18 11:46:38,938 INFO L226 Difference]: Without dead ends: 9985 [2018-09-18 11:46:38,965 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:46:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9985 states. [2018-09-18 11:46:39,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9985 to 9795. [2018-09-18 11:46:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9795 states. [2018-09-18 11:46:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9795 states to 9795 states and 14500 transitions. [2018-09-18 11:46:39,278 INFO L78 Accepts]: Start accepts. Automaton has 9795 states and 14500 transitions. Word has length 145 [2018-09-18 11:46:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:39,279 INFO L480 AbstractCegarLoop]: Abstraction has 9795 states and 14500 transitions. [2018-09-18 11:46:39,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:46:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9795 states and 14500 transitions. [2018-09-18 11:46:39,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-09-18 11:46:39,284 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:39,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:39,285 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:39,285 INFO L82 PathProgramCache]: Analyzing trace with hash -507392094, now seen corresponding path program 1 times [2018-09-18 11:46:39,286 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:39,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:39,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:39,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:39,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:39,609 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:46:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:39,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:39,727 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:46:39,727 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:39,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:46:39,728 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:46:39,728 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:46:39,728 INFO L87 Difference]: Start difference. First operand 9795 states and 14500 transitions. Second operand 6 states. [2018-09-18 11:46:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:54,511 INFO L93 Difference]: Finished difference Result 34191 states and 53804 transitions. [2018-09-18 11:46:54,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:46:54,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-09-18 11:46:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:54,649 INFO L225 Difference]: With dead ends: 34191 [2018-09-18 11:46:54,649 INFO L226 Difference]: Without dead ends: 24402 [2018-09-18 11:46:54,725 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 11:46:54,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24402 states. [2018-09-18 11:46:55,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24402 to 24169. [2018-09-18 11:46:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24169 states. [2018-09-18 11:46:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24169 states to 24169 states and 34071 transitions. [2018-09-18 11:46:55,496 INFO L78 Accepts]: Start accepts. Automaton has 24169 states and 34071 transitions. Word has length 163 [2018-09-18 11:46:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:46:55,496 INFO L480 AbstractCegarLoop]: Abstraction has 24169 states and 34071 transitions. [2018-09-18 11:46:55,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:46:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 24169 states and 34071 transitions. [2018-09-18 11:46:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-18 11:46:55,501 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:46:55,501 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:55,502 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:46:55,502 INFO L82 PathProgramCache]: Analyzing trace with hash -698990030, now seen corresponding path program 1 times [2018-09-18 11:46:55,502 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:46:55,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:55,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:46:55,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:46:55,503 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:46:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:46:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:46:55,756 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:46:55,756 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:46:55,757 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:46:55,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:46:55,758 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:46:55,758 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:46:55,758 INFO L87 Difference]: Start difference. First operand 24169 states and 34071 transitions. Second operand 4 states. [2018-09-18 11:47:07,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:07,732 INFO L93 Difference]: Finished difference Result 66649 states and 99957 transitions. [2018-09-18 11:47:07,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:47:07,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-09-18 11:47:07,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:07,891 INFO L225 Difference]: With dead ends: 66649 [2018-09-18 11:47:07,891 INFO L226 Difference]: Without dead ends: 42486 [2018-09-18 11:47:07,952 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:47:07,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42486 states. [2018-09-18 11:47:08,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42486 to 42433. [2018-09-18 11:47:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42433 states. [2018-09-18 11:47:08,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42433 states to 42433 states and 60054 transitions. [2018-09-18 11:47:08,895 INFO L78 Accepts]: Start accepts. Automaton has 42433 states and 60054 transitions. Word has length 171 [2018-09-18 11:47:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:08,896 INFO L480 AbstractCegarLoop]: Abstraction has 42433 states and 60054 transitions. [2018-09-18 11:47:08,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:47:08,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42433 states and 60054 transitions. [2018-09-18 11:47:08,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-09-18 11:47:08,923 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:08,923 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, 2, 2, 2, 2, 2, 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 11:47:08,924 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:08,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1869313388, now seen corresponding path program 1 times [2018-09-18 11:47:08,924 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:08,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:08,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:08,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:08,925 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:09,235 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:47:09,646 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 96 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:09,646 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:09,647 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:47:09,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:09,668 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:09,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 11:47:10,286 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 96 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:47:10,825 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:47:10,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-18 11:47:10,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:10,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:47:10,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:47:10,827 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:10,827 INFO L87 Difference]: Start difference. First operand 42433 states and 60054 transitions. Second operand 5 states. [2018-09-18 11:47:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:28,610 INFO L93 Difference]: Finished difference Result 130759 states and 196725 transitions. [2018-09-18 11:47:28,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:47:28,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2018-09-18 11:47:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:28,984 INFO L225 Difference]: With dead ends: 130759 [2018-09-18 11:47:28,984 INFO L226 Difference]: Without dead ends: 88332 [2018-09-18 11:47:29,346 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:47:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88332 states. [2018-09-18 11:47:32,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88332 to 88189. [2018-09-18 11:47:32,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88189 states. [2018-09-18 11:47:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88189 states to 88189 states and 123408 transitions. [2018-09-18 11:47:32,358 INFO L78 Accepts]: Start accepts. Automaton has 88189 states and 123408 transitions. Word has length 251 [2018-09-18 11:47:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:32,358 INFO L480 AbstractCegarLoop]: Abstraction has 88189 states and 123408 transitions. [2018-09-18 11:47:32,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:47:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 88189 states and 123408 transitions. [2018-09-18 11:47:32,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-09-18 11:47:32,373 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:32,374 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:47:32,374 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:32,374 INFO L82 PathProgramCache]: Analyzing trace with hash 348886837, now seen corresponding path program 1 times [2018-09-18 11:47:32,380 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:32,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:32,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:32,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:32,382 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:47:32,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:47:32,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:47:32,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:47:32,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:47:32,680 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:47:32,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:47:32,681 INFO L87 Difference]: Start difference. First operand 88189 states and 123408 transitions. Second operand 3 states. [2018-09-18 11:47:41,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:47:41,602 INFO L93 Difference]: Finished difference Result 172483 states and 247498 transitions. [2018-09-18 11:47:41,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:47:41,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2018-09-18 11:47:41,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:47:41,957 INFO L225 Difference]: With dead ends: 172483 [2018-09-18 11:47:41,957 INFO L226 Difference]: Without dead ends: 97275 [2018-09-18 11:47:42,115 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 11:47:42,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97275 states. [2018-09-18 11:47:43,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97275 to 97257. [2018-09-18 11:47:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97257 states. [2018-09-18 11:47:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97257 states to 97257 states and 135917 transitions. [2018-09-18 11:47:43,919 INFO L78 Accepts]: Start accepts. Automaton has 97257 states and 135917 transitions. Word has length 257 [2018-09-18 11:47:43,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:47:43,920 INFO L480 AbstractCegarLoop]: Abstraction has 97257 states and 135917 transitions. [2018-09-18 11:47:43,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:47:43,920 INFO L276 IsEmpty]: Start isEmpty. Operand 97257 states and 135917 transitions. [2018-09-18 11:47:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-09-18 11:47:43,963 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:47:43,964 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:43,964 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:47:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash -415387274, now seen corresponding path program 1 times [2018-09-18 11:47:43,964 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:47:43,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:43,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:43,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:47:43,966 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:47:44,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:44,612 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:44,612 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 11:47:45,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:45,532 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:45,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:45,805 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:45,805 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:46,067 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:47:46,068 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 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:47:46,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:47:46,084 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:47:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:47:46,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:47:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:46,435 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:47:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 299 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 11:47:46,819 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:47:46,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:47:46,820 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:47:46,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:47:46,821 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:47:46,821 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:47:46,824 INFO L87 Difference]: Start difference. First operand 97257 states and 135917 transitions. Second operand 9 states. [2018-09-18 11:48:08,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:08,681 INFO L93 Difference]: Finished difference Result 234092 states and 388374 transitions. [2018-09-18 11:48:08,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-18 11:48:08,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 343 [2018-09-18 11:48:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:09,184 INFO L225 Difference]: With dead ends: 234092 [2018-09-18 11:48:09,184 INFO L226 Difference]: Without dead ends: 136841 [2018-09-18 11:48:09,427 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1394 GetRequests, 1370 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:48:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136841 states. [2018-09-18 11:48:12,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136841 to 136174. [2018-09-18 11:48:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136174 states. [2018-09-18 11:48:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136174 states to 136174 states and 202668 transitions. [2018-09-18 11:48:13,287 INFO L78 Accepts]: Start accepts. Automaton has 136174 states and 202668 transitions. Word has length 343 [2018-09-18 11:48:13,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:13,288 INFO L480 AbstractCegarLoop]: Abstraction has 136174 states and 202668 transitions. [2018-09-18 11:48:13,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:48:13,289 INFO L276 IsEmpty]: Start isEmpty. Operand 136174 states and 202668 transitions. [2018-09-18 11:48:13,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-09-18 11:48:13,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:13,381 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:48:13,381 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:13,382 INFO L82 PathProgramCache]: Analyzing trace with hash 228698120, now seen corresponding path program 1 times [2018-09-18 11:48:13,382 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:13,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:13,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:13,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:13,383 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 241 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:48:13,702 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:13,702 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:13,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:13,714 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:13,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 11:48:14,062 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 241 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:48:14,223 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:14,223 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:48:14,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:14,243 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:14,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:14,579 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 11:48:14,579 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 241 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:48:15,822 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:48:15,822 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:48:15,822 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:48:15,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:48:15,823 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:48:15,824 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:48:15,824 INFO L87 Difference]: Start difference. First operand 136174 states and 202668 transitions. Second operand 9 states. [2018-09-18 11:48:45,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:48:45,628 INFO L93 Difference]: Finished difference Result 294121 states and 517173 transitions. [2018-09-18 11:48:45,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-18 11:48:45,629 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 351 [2018-09-18 11:48:45,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:48:46,303 INFO L225 Difference]: With dead ends: 294121 [2018-09-18 11:48:46,303 INFO L226 Difference]: Without dead ends: 157958 [2018-09-18 11:48:46,652 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1434 GetRequests, 1406 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:48:46,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157958 states. [2018-09-18 11:48:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157958 to 155664. [2018-09-18 11:48:50,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155664 states. [2018-09-18 11:48:50,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155664 states to 155664 states and 216082 transitions. [2018-09-18 11:48:50,472 INFO L78 Accepts]: Start accepts. Automaton has 155664 states and 216082 transitions. Word has length 351 [2018-09-18 11:48:50,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:48:50,472 INFO L480 AbstractCegarLoop]: Abstraction has 155664 states and 216082 transitions. [2018-09-18 11:48:50,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:48:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand 155664 states and 216082 transitions. [2018-09-18 11:48:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-09-18 11:48:50,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:48:50,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:48:50,562 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:48:50,562 INFO L82 PathProgramCache]: Analyzing trace with hash -258905025, now seen corresponding path program 1 times [2018-09-18 11:48:50,562 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:48:50,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:50,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:50,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:48:50,567 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:48:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:50,899 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:50,900 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:50,900 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:48:50,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:50,908 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:51,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:51,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:51,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:51,545 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:48:51,546 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:48:51,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:48:51,561 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:48:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:48:51,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:48:51,897 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:51,898 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:48:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:48:52,590 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:48:52,591 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-18 11:48:52,591 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:48:52,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:48:52,593 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:48:52,593 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:48:52,593 INFO L87 Difference]: Start difference. First operand 155664 states and 216082 transitions. Second operand 9 states. [2018-09-18 11:49:07,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:07,140 INFO L93 Difference]: Finished difference Result 378232 states and 585762 transitions. [2018-09-18 11:49:07,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:49:07,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 353 [2018-09-18 11:49:07,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:07,979 INFO L225 Difference]: With dead ends: 378232 [2018-09-18 11:49:07,979 INFO L226 Difference]: Without dead ends: 222626 [2018-09-18 11:49:09,016 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1403 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-09-18 11:49:09,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222626 states. [2018-09-18 11:49:12,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222626 to 215590. [2018-09-18 11:49:12,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215590 states. [2018-09-18 11:49:13,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215590 states to 215590 states and 286862 transitions. [2018-09-18 11:49:13,060 INFO L78 Accepts]: Start accepts. Automaton has 215590 states and 286862 transitions. Word has length 353 [2018-09-18 11:49:13,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:13,060 INFO L480 AbstractCegarLoop]: Abstraction has 215590 states and 286862 transitions. [2018-09-18 11:49:13,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:49:13,061 INFO L276 IsEmpty]: Start isEmpty. Operand 215590 states and 286862 transitions. [2018-09-18 11:49:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-09-18 11:49:13,105 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:13,105 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:13,105 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash -845523934, now seen corresponding path program 1 times [2018-09-18 11:49:13,106 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:13,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:13,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:13,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:13,107 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:13,467 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 Received shutdown request... [2018-09-18 11:49:13,559 WARN L186 SmtUtils]: Removed 1 from assertion stack [2018-09-18 11:49:13,559 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:49:13,564 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:49:13,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:49:13 BoogieIcfgContainer [2018-09-18 11:49:13,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:49:13,565 INFO L168 Benchmark]: Toolchain (without parser) took 226251.73 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -429.1 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-18 11:49:13,568 INFO L168 Benchmark]: CDTParser took 0.21 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 11:49:13,568 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2497.94 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: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:13,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 332.41 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 11:49:13,571 INFO L168 Benchmark]: Boogie Preprocessor took 1409.54 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 11:49:13,571 INFO L168 Benchmark]: RCFGBuilder took 11889.33 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 148.4 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 7.7 MB). Peak memory consumption was 752.2 MB. Max. memory is 7.1 GB. [2018-09-18 11:49:13,574 INFO L168 Benchmark]: TraceAbstraction took 210115.30 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 516.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:49:13,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2497.94 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: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 332.41 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 1409.54 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 11889.33 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 148.4 MB). Free memory was 2.4 GB in the beginning and 2.4 GB in the end (delta: 7.7 MB). Peak memory consumption was 752.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210115.30 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 1.8 GB in the end (delta: 516.3 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). Cancelled while BasicCegarLoop was analyzing trace of length 359 with TraceHistMax 4, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 210.0s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 178.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6492 SDtfs, 39143 SDslu, 6915 SDs, 0 SdLazy, 75225 SolverSat, 15975 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 137.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4802 GetRequests, 4692 SyntacticMatches, 20 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215590occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 10719 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 4565 NumberOfCodeBlocks, 4565 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6886 ConstructedInterpolants, 0 QuantifiedInterpolants, 5134892 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4059 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 5643/6096 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_label55_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-49-13-612.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label55_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-49-13-612.csv Completed graceful shutdown